Preface

Open Source Software

SICAM Contents

SICAM PAS
Getting Started 1
V8.05 Basic Principles 2
Commands 3
Automation Blocks Indications 4
Measured Values and Metered Values 5
Special Blocks 6
Time Blocks 7
Sequence Blocks 8
User-Specific Blocks 9
PAS Standard Library 10
Examples 11
Appendix A
E50417-H8976-C436-A7 Literature

Index
 NOTE

For your own safety, observe the warnings and safety instructions contained in this document.

Disclaimer of Liability Copyright

This document has been subjected to rigorous technical review Copyright © Siemens AG 2015. All rights reserved.
before being published. It is revised at regular intervals, and any The disclosure, duplication, distribution and editing of this
modifications and amendments are included in the subsequent document, or utilization and communication of the content are not
issues. The content of this document has been compiled for permitted, unless authorized in writing. All rights, including rights
information purposes only. Although Siemens AG has made best created by patent grant or registration of a utility model or a design,
efforts to keep the document as precise and up-to-date as possible, are reserved.
Siemens AG shall not assume any liability for defects and damage
which result through use of the information contained herein.
Registered Trademarks
This content does not form part of a contract or of business
relations; nor does it change these. All obligations of Siemens AG SIMATIC®, SIMATIC NET®, SIPROTEC®, DIGSI®, SICAM®,
are stated in the relevant contractual agreements. SIMEAS®, SINAUT®, OSCOP®, and DAKON® are registered
trademarks of SIEMENS AG. An unauthorized use is illegal.
Siemens AG reserves the right to revise this document from time to
time. All other designations in this document can be trademarks whose
use by third parties for their own purposes can infringe the rights of
the owner.
Document Release: E50417-H8976-C436-A7.03
Edition: 08.2014
Product version: V8.05
Preface

Purpose of this Manual

This manual is a reference document for the graphical and textual configuration of the SICAM PAS automation
by means of the SICAM PAS automation blocks. The basic knowledge required for the work with the SICAM
PAS automation blocks is provided in Chapter Basics. The remaining chapters describe the functionality of the
automation blocks as well as the parameterization and connection of the block inputs and outputs.

Target Group

This manual is mainly addressed to persons configuring and parameterizing substation automation systems.
These persons should have already gained experience in the implementation of automation tasks based on the
IEC 61131-3 automation standard.

Scope of Validity of this Manual

This manual is valid for SICAM PAS V7.00 and later.

Standards

The SICAM PAS automation blocks are developed in compliance with the ISO 9001:2008 standard.

Further Support

If you have any further questions regarding SICAM PAS V8.05 please do not hesitate to contact your
local Siemens representative.

Hotline

Our Customer Support Center provides around-the-clock support.

Phone: +49 (180) 524-7000

Fax: +49 (180) 524-2471
e-mail: support.energy@siemens.com

Training Courses

If you are interested in our current training program, please contact our training center:

Siemens AG
Siemens Power Academy

Humboldtstr. 59
90459 Nuremberg
Germany

Phone: +49 (911) 433-7415

Fax: +49 (911) 433-5482
e-mail: poweracademy.ic-sg@siemens.com
Internet: www.siemens.com/energy/poweracademy

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Preface

Notes On Safety

This document is not a complete index of all safety measures required for operation of the equipment (module,
device). However, it comprises important information that must be noted for purposes of personal safety, as
well as in order to avoid material damage. Information is highlighted and illustrated as follows according to the
degree of danger:

DANGER
DANGER means that death or severe injury will result if the measures specified are not taken.

✧ Comply with all instructions, in order to avoid death or severe injuries.

WARNING
WARNING means that death or severe injury can result if the measures specified are not taken.

✧ Comply with all instructions, in order to avoid death or severe injuries.

CAUTION
CAUTION means that medium-severe or slight injuries can result if the measures specified are not taken.

✧ Comply with all instructions, in order to avoid medium-severe or slight injuries.

NOTICE
NOTICE means that material damage can result if the measures specified are not taken.

✧ Comply with all instructions, in order to avoid material damage.

NOTE
Important information about the product, product handling, or a certain section of the documentation, which
must be given particular attention.

Qualified Electrical Engineering Personnel

Only qualified electrical engineering personnel may commission and operate the equipment (module, device)
described in this document. Qualified electrical engineering personnel in the sense of this document are people
who can demonstrate technical qualifications as electrical technicians. These persons may commission,
isolate, ground and label devices, systems and circuits according to the standards of safety engineering.

4 SICAM, SICAM PAS, Automation Blocks

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 Preface

Use as Prescribed

The equipment (device, module) may only be used for such applications as set out in the catalogs and the
technical description, and only in combination with third-party equipment recommended and approved by
Siemens.

Problem-free and safe operation of the product depends on the following:

• Proper transport
• Proper storage, setup, and installation
• Proper operation and maintenance

When electrical equipment is operated, hazardous voltages are inevitably present in certain parts. If proper
action is not taken, death, severe injury, or material damage can result:
• The equipment must be grounded at the grounding terminal before any connections are made.
• All circuit components connected to the power supply may be subject to dangerous voltage.
• Hazardous voltages may be present in equipment even after the supply voltage has been disconnected
(capacitors can still be charged).
• Equipment with exposed current-transformer circuits must not be operated. Before disconnecting the
equipment, ensure that the current-transformer circuits are short-circuited.
• The limit values stated in the document may not be exceeded. This must also be considered during testing
and commissioning.

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Preface

6 SICAM, SICAM PAS, Automation Blocks

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Open Source Software

Among other things, this product contains Open Source Software that was developed by third parties. The
Open Source Software included with this product and the relevant Open Source Software license agreement
can be found in Readme_OSS. The Open Source Software program is protected by copyright. You are permit-
ted to use the Open Source Software according to the Open Source Software license agreement. Should con-
tradictions occur between the Open Source Software license conditions and the Siemens license conditions
applicable to the product, the Open Source Software license agreement with respect to the Open Source Soft-
ware shall prevail. The Open Source Software is provided free of charge. If stipulated by the Open Source Soft-
ware license agreement, the source text of the software is available until the end of the third year after
purchasing the product. Shipping charges will apply separately. We are liable for the product including the Open
Source Software according to the license agreement for the product. Any liability arising from the use of the
Open Source Software that exceeds the intended program flow of the product, as well as liability for defects
that were caused by changes made to the Open Source Software, is excluded. If the product was modified, we
cannot provide technical support.

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Open Source Software

8 SICAM, SICAM PAS, Automation Blocks

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Contents

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Open Source Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1.1 Basic Configuration Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1.2 Starting the SICAM PAS SoftPLC UI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
1.2.1 Task in SICAM PAS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
1.2.2 Inserting a PAS Firmware Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
1.2.3 Programming a Command Interlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
1.2.4 SoftPLC-Internal Command (Marker Command) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
1.3 Compiling the Project Data into the Destination System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
1.4 Programming with ST, SFC and STL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
1.4.1 Special Procedures for SICAM PAS when Using ST, SFC, STL . . . . . . . . . . . . . . . . . . . . . . . . . . 35

2 Basic Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
2.1 Important Information on the Programming of the SICAM PAS SoftPLC . . . . . . . . . . . . . . . . . . . . . . . 38
2.2 Startup Behavior of the SICAM PAS SoftPLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
2.3 POUs and Tasks in the SICAM PAS SoftPLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
2.4 SICAM PAS Process Data Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
2.4.1 Components of the Process Data Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
2.4.2 Showing the Contents of the Process Data Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
2.4.3 Pointers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
2.5 Data Types Used in the SoftPLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
2.5.1 BOOL(BO) Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
2.5.2 BYTE(BY) Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
2.5.3 WORD(W) Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
2.5.4 DWORD (DW) Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
2.5.5 INTEGER(I) Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
2.5.6 REAL(R) Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
2.5.7 TIME(TI) Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
2.5.8 STRING Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
2.5.9 SICAM PAS Data Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
2.6 Configuration of the Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
2.7 Checking PAS Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
2.8 CFC Chart-in-Chart Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
2.9 Reusability of POUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
2.10 Online Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

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2.11 Online Watching: Watchlist and Control Data Analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

2.12 Synchronization of Persistent Data between the SoftPLCs in Case of System Redundancy . . . . . . . 57
2.13 Restrictions of the SoftPLC UI Programming System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
2.13.1 Basic Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
2.13.2 Recommendations for Optimized SoftPLC Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
2.13.3 General Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
2.13.4 Segmentation-Oriented Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
2.13.5 Editor-Specific Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

3 Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
3.1 Command Processing Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
3.1.1 Commands to the Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
3.1.2 System-Internal Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
3.2 PAS_CRCOM - Command Derivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
3.2.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
3.2.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
3.2.3 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
3.3 PAS_COMMCP - Command Output to the Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
3.3.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
3.3.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
3.3.3 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
3.3.4 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
3.4 PAS_COMMCP_EX - Command Output to the Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
3.4.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
3.4.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
3.4.3 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
3.5 PAS_SELC - Marker Command for the SoftPLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
3.5.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
3.5.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
3.5.3 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
3.5.4 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
3.6 PAS_SELC_EX - Marker Command for the SoftPLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
3.6.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
3.6.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
3.6.3 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

4 Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
4.1 Concept of Indication Processing in Automation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
4.2 PAS_CRI - Creating Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
4.2.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
4.2.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
4.2.3 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
4.2.4 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

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4.3 PAS_FI - Creating Fleeting Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

4.3.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
4.3.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
4.4 PAS_TSP - Converting Double-Point Into Single-Point Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
4.4.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
4.4.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
4.4.3 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
4.4.4 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
4.5 PAS_ANDI and PAS_ORI - Logical Linking of Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
4.5.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
4.5.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
4.5.3 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
4.5.4 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
4.6 PAS_INVER - Inverting Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
4.6.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
4.6.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
4.6.3 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
4.6.4 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
4.7 PAS_DELAYI - Filtering an Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
4.7.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
4.7.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
4.7.3 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
4.7.4 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
4.8 PAS_GROUPI - Creating Group Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
4.8.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
4.8.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
4.9 PAS_CMPT and PAS_CMPTC - Transformer Tap Comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
4.9.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
4.9.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
4.9.3 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
4.9.4 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
4.10 PAS_CMPB and PAS_CMPBC - Bit Pattern Comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
4.10.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
4.10.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
4.10.3 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
4.10.4 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
4.11 PAS_INDIC - Interlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
4.11.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
4.11.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
4.11.3 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
4.11.4 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
4.12 PAS_GROUPINDIC - Accessing an Indication Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
4.12.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
4.12.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

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5 Measured Values and Metered Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

5.1 Measured-Value and Metered-Value Processing in the SoftPLC . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
5.2 Analog Value standardization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
5.2.1 Measuring Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
5.2.2 Analog value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
5.3 PAS_NLC - Non-Linear Characteristic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
5.3.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
5.3.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
5.3.3 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
5.4 PAS_ACQ - Metered-Value Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
5.4.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
5.4.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
5.4.3 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
5.4.4 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
5.5 PAS_LIMU and PAS_LIML - Limit Value Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
5.5.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
5.5.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
5.5.3 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
5.5.4 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
5.6 PAS_AVG - Mean value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
5.6.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
5.6.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
5.6.3 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
5.7 PAS_NRP - Slave Pointers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
5.7.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
5.7.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
5.7.3 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
5.7.4 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
5.8 Arithmetical Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
5.8.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
5.8.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
5.8.3 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
5.9 PAS_CMP and PAS_CMPC - Comparison Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
5.9.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
5.9.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
5.9.3 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

6 Special Blocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

6.1 PAS_SASC - Creating PAS Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
6.1.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
6.1.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
6.1.3 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

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6.2 PAS_SASS - Splitting PAS Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

6.2.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
6.2.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
6.2.3 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
6.2.4 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
6.3 PAS_CMD_STRUCT - Splitting the Command Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
6.3.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
6.3.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
6.3.3 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
6.4 PAS_MUXTEL - Multiplexer for Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
6.4.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
6.4.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
6.4.3 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
6.5 Saving Data Persistently. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
6.5.1 Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
6.5.2 PAS_DATA - Saving Data Persistently . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

7 Time Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

7.1 PAS_TIMERSW - Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
7.1.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
7.1.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
7.1.3 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
7.2 PAS_TIMES - Time Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
7.2.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
7.2.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
7.2.3 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
7.3 PAS_GETTIME - Generating a Time Stamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
7.3.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
7.3.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
7.3.3 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

8 Sequence Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

8.1 PAS_STATE - State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
8.1.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
8.1.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
8.1.3 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
8.1.4 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
8.2 PAS_TRANS - Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
8.2.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
8.2.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
8.2.3 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
8.2.4 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

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9 User-Specific Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199

9.1 PAS_ANDI_EX, PAS_ORI_EX - Logic Linking of Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
9.1.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
9.1.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
9.1.3 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
9.1.4 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
9.2 PAS_GROUPI_EX - Creating Group Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
9.2.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
9.2.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
9.3 PAS_UDIFF - Processing Limit Value Violations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
9.3.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
9.3.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208

10 PAS Standard Library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

10.1 Using the PAS Standard Library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
10.2 BusBarEmulation Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
10.2.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
10.2.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
10.3 CTRL_MUX Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
10.3.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
10.3.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
10.4 FB_DATA Block - Saving Data Persistently . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
10.4.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
10.4.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
10.5 FB_GROUPI Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
10.5.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
10.5.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
10.6 FB_NGCGROUPI Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
10.6.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
10.6.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
10.7 SFC_RunCyclic Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
10.7.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
10.7.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
10.8 SLCT_MUX Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
10.8.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
10.8.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
10.9 ToggleSP Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
10.9.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
10.9.2 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

11 Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
11.1 Switchgear Interlocking for Busbar Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
11.2 Switching Sequences of the SoftPLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
11.2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
11.2.2 Switching Sequence in SFC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

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11.3 Redundancy Switchover During Switching Sequences in SFC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245

11.3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
11.3.2 Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
11.3.3 Solution in SFC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
11.4 Transformer Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250

A Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
A.1 Components of the Process Data Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
A.1.1 Cause . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
A.1.2 Initiator Category. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
A.1.3 Additional Cause . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
A.1.4 Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
A.1.5 Extended Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
A.1.6 Value Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
A.1.7 Type of TIme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
A.1.8 Identification Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
A.1.9 Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
A.2 Diagnostic Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
A.3 Data Types of SICAM PAS Process Data Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
A.4 Data Types According to IEC 61131 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Literature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273

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1 Getting Started

Overview

Based on a sample configuration, the present chapter illustrates how to start the SoftPLC, how to connect an
automation block and how to define all related parameters.

Contents

1.1 Basic Configuration Steps 18

1.2 Starting the SICAM PAS SoftPLC UI 19

1.3 Compiling the Project Data into the Destination System 33

1.4 Programming with ST, SFC and STL 35

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1.1 Basic Configuration Steps

1.1 Basic Configuration Steps

The schematic diagram below illustrates the basic steps for the configuration of a system using the
SICAM PAS SoftPLC UI.

SICAM PAS UI - Configuration

Insert a SoftPLC
interface

SICAM PAS UI - Configuration SICAM PAS UI - Configuration

Define parameter values Open the
programming system

SICAM PAS SoftPLC UI

Create a program
or function or
function block

SICAM PAS SoftPLC UI

Compile the resource

SICAM PAS SoftPLC UI SICAM PAS UI - Operation

Close Restart the SoftPLC

Fig. 1-1 Basic configuration steps

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1.2 Starting the SICAM PAS SoftPLC UI

Prerequisites

In order to be able to start the SICAM PAS SoftPLC UI (SoftPLC User Interface), the following prerequisites
must be met:
• A system has been created in SICAM PAS UI – Configuration.
• This system comprises an Automation application.
• A SoftPLC is inserted under Automation.
• Under this SoftPLC, the Info. from - / Cmd. to SoftPLC and Info. to - / Cmd. from SoftPLC devices
are inserted.

CFC1.tif

Fig. 1-2 Window of SICAM PAS UI – Configuration

NOTE

Siemens recommends creating only 1 automation project (application) in a SICAM PAS project.

If you create several SICAM PAS automation projects in a SICAM PAS project, pay attention not to map com-
mands simultaneously to several automation projects. Otherwise the command interlock can not be ensured.

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1.2 Starting the SICAM PAS SoftPLC UI

Opening SICAM PAS UI - Configuration and mapping items of information

✧ Proceed as follows to open SICAM PAS UI – Configuration via the Windows Start menu:
Siemens Energy > SICAM > PAS > UI – Configuration.

✧ Select the Mapping view.

✧ In the tree structure of the mapping view, click Info. from - / Cmd. to SoftPLC.

✧ Map the Information - Monitoring Direction and the Information - Command Direction.

CFC2.tif

Fig. 1-3 SICAM PAS UI – Configuration: mapping of information - Info. from - / Cmd. to SoftPLC

✧ In the tree structure of the mapping view, click Info. to - / Cmd. from SoftPLC.

✧ Map the Information - Monitoring Direction and the Information - Command Direction.

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CFC21.tif

Fig. 1-4 SICAM PAS UI – Configuration: mapping of information

NOTE

The SoftPLC Tag Group and SoftPLC Tag Name columns must include an entry for each mapped item of
information. These entries are used as tag names for the PAS interface tags in the SICAM PAS SoftPLC UI.

When mapping an item of information, the SoftPLC Tag Group and the SoftPLC Tag Name are defined au-
tomatically. You can change these default settings.

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1.2 Starting the SICAM PAS SoftPLC UI

Opening the SICAM PAS SoftPLC UI

To open the SICAM PAS SoftPLC UI from the Configuration view:

✧ Select the Configuration view.

✧ Highlight SoftPLC in the configuration tree and select Open from the context menu.
SICAM PAS SoftPLC UI opens. The following two files are shown in the project browser:
• Main.ST
is an empty ST program (textual programming).
• pasglob.POU
is always generated automatically (POU stands for Program Organization Unit). The file includes the
PAS interface tags declared as global tags.
The tags describe the items of information mapped in the Mapping view of
SICAM PAS UI – Configuration or by the SoftPLC.

CFC3.tif

Fig. 1-5 SICAM PAS SoftPLC UI

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Creating a new CFC program

✧ In the SICAM PAS SoftPLC UI, click File > New. The Create a new file windows opens.

✧ In the File Type box under POU, select the Program unit. Available program templates are shown in the
Templates pane. Click the I and L buttons in the top right-hand corner above the program templates to
switch between the icon representation style (I) and the list representation style (L).

✧ Select a template for a CFC program, e. g. CFC Program (A4 landscape).

✧ Under Name, enter a name for the CFC program, e. g. MyCFCProgram.

✧ Click OK to confirm.

CFC4.tif

Fig. 1-6 Creating a new CFC program

✧ When the system prompts you as to whether you want to add the CFC program to the active resource,
click Yes to confirm.

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1.2 Starting the SICAM PAS SoftPLC UI

✧ The new CFC program is shown in the editor window. The program organizational units available in the
project are shown in the POUs tab of the Catalog. These units include e. g. the PAS firmware blocks (e. g.
PAS_ACQ).

CFC5.tif

Fig. 1-7 Editor window with new CFC program

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1.2.1 Task in SICAM PAS

Task

Tasks do not need to be configured in SICAM PAS SoftPLC. A task already exists, which considerably simpli-
fies configuration. Each time the SoftPLC is called up, all POUs programmed in the SoftPLC are computed.

The call-up of a task is event-controlled. The following events are possible:

• New incoming indication/measured value/metered value
• New command/command acknowledgement
• Interlock request
(The central distribution component of the SICAM PAS - DSI Server requests whether a command is in-
terlocked; interlocks are specified via the SoftPLC.)
• Timer countdown (e. g. PAS_TIMERSW, PAS_TRANS)

NOTE

A mixed task which can be called up cyclically or event-controlled can be created by means of the
SFC_RunCyclic ST block (see chapter 10.7).

POU

In SICAM PAS, PAS firmware blocks do not have a number which specifies the task sequence.

The task sequence depends on the arrangement of the blocks: As a rule, a POU is processed from top to bot-
tom and from left to right.

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1.2.2 Inserting a PAS Firmware Block

The following example illustrates how to insert a PAS firmware block in a CFC program.

Selecting and inserting a PAS firmware block

✧ After creating a new CFC program, click the POUs tab in the Catalog.

✧ Under Firmware, select the block which you want to insert. Next, drag and drop the block into the editor
window.

As soon as you release the mouse button, the mouse pointer changes its shape depending on the possible
plug-in positions.
• If the mouse pointer shows a prohibition sign, you cannot insert the block.
• If the mouse pointer shows Insert, you can click to insert the block.

CFC6.tif

Fig. 1-8 Inserting a PAS firmware block

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NOTE

The names of all PAS firmware blocks begin with PAS.

Interconnecting PAS interface tags (global tags)

In order to ensure that the CFC program can send/receive information to/from SICAM PAS, you must intercon-
nect the program with PAS interface tags.

The tags describe the items of information mapped in the Mapping view of SICAM PAS UI – Configuration
or by the SoftPLC.

The PAS firmware blocks are interconnected by means of the connectors in the right-hand and left-hand margin
bars in the editor window:

✧ In the Catalog, click the Tags tab. The tags available in the project are shown.

✧ Select one or several tags to be interconnected via a margin bar. Be aware of the interconnection
options of PAS interface tags (refer to Table 1-1).

CFC7.tif

Fig. 1-9 Selecting global tags

✧ Drag and drop the selected tags to the margin bar. The tags are shown in the margin bar and can be
interconnected.

NOTE

The tag selection catalog provides various filter options, such as:

Filtering according to the Name with asterisks (*) used as wildcards

Filtering according to the Data Type via a selection box in the column header

Filtering according to the Used column (only refers to CFC POUs) via a selection box in the column header.

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Interconnection options of PAS interface tags

The tags shown in the Catalog window can be interconnected via the margin bars as illustrated in the table
below:

Table 1-1 Interconnection options of PAS interface tags

Information PAS data type Name of global tag Can be interconnected to the

Indication PASDATABLOCK S_ left-hand margin bar

M_ right-hand margin bar

Command PASCOMMANDBLOCK S_ right-hand margin bar

M_ left-hand margin bar

Group indication PASGROUP G_ left-hand margin bar

Margin bars in the editor window with CFC program

The left-hand and right-hand margin bars in the editor window with CFC program provide different functions.

The following functions can be selected from the left-hand margin bar:
• Commands to the SoftPLC
• Incoming indications, metered values and measured values to be processed

The right-hand margin bar provides the following functions:

• Outgoing commands (command derivation, switching sequence)
• Indications generated by the SoftPLC (e. g. group indications, measured values, metered values)

Connecting a block

The block is connected with other blocks by means of the left-hand and right-hand margin bar.

In the example below, a group indication is formed with PAS_ORI (refer to figure 1-10).

✧ Interconnect a PAS interface tag representing an indication with a connector in the left-hand margin bar.

✧ Interconnect an input of the PAS_ORI block via the left-hand margin bar:
− To do this, select the input of the block and the corresponding connector with the PAS interface tag
in the left-hand margin bar.
− In SICAM PAS SoftPLC UI, click Insert > Insert Connection. The input of the block is
interconnected with the connector in the margin bar.
✧ The output is connected in a similar way, but you connect the output to a group indication in the right-hand
margin bar.

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CFC8.tif

Fig. 1-10 Example: Connection of a group indication with PAS_OR

NOTE

Alternatively, you can interconnect a block as follows:

✧ Select the source.

✧ Press and hold down the SHIFT key.

✧ Click the destination and release the SHIFT key. The source and the destination are now connected.

Inserting text blocks

To write into blocks, you can insert text blocks in the CFC program.

✧ Highlight the editor window of the CFC program and select Insert Text Block from the context menu.

The shape of the mouse pointer changes depending on the possible plug-in positions:
• If the mouse pointer shows a prohibition sign, you cannot insert the text block.
• If the mouse pointer shows Insert, you can click to insert the text block.

✧ Enter the desired text in the input text and then press the ENTER key. The text block is shown in gray
(disabled).

✧ In order to be able to edit the text in the text block again, double-click the block.

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1.2 Starting the SICAM PAS SoftPLC UI

1.2.3 Programming a Command Interlock

The following example describes how to program a command interlock. To do this, a PAS_COMMCP command
block is inserted in the CFC program.

Inserting a block in the chart

Proceed as follows to insert another block:

✧ After you have opened the CFC program in the SICAM PAS SoftPLC UI, click the POUs tab in the
Catalog.

✧ Under Firmware, select the PAS_COMMCP block. Next, drag and drop the block into the editor window.

As soon as you release the mouse button, the mouse pointer changes its shape depending on the possible
plug-in positions.
• If the mouse pointer shows a prohibition sign, you cannot insert the block.
• If the mouse pointer shows Insert, you can click to insert the block.

Description

The BVALUE output of the PAS_ORI block is interconnected with the LOCK input of the PAS_COMMCP block.
For PAS_COMMCP, the OUT output is interconnected.

The command always locks in case of a group indication.

CFC10.tif

Fig. 1-11 Command interlock, example

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Grid in the CFC editor

The blocks are arranged in a grid of the CFC editor. They cannot be arranged freely. To simplify programming,
this grid can be shown.
In SICAM PAS SoftPLC UI, click View > Grid (CFC) in order to show or hide the grid.

Showing/hiding unused block connectors

Used inputs and outputs of blocks are always shown.

To show or hide unused inputs and outputs:

✧ Highlight the block and select Toggle Unused Connectors from the context menu.

Pre-assigning inputs

To pre-assign another value for an input on the block:

✧ Double-click the input and enter the desired value in the input box. To do this, be aware of the admissible
data type for the input value.

✧ Press the ENTER key. The input with the new value is shown in gray.

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1.2.4 SoftPLC-Internal Command (Marker Command)

The example below illustrates the programming of a SoftPLC-internal command (marker command).

Inserting a block in the chart

Proceed as follows to insert another block:

✧ After you have opened the CFC program in SICAM PAS SoftPLC UI, click the POUs tab in the Catalog.

✧ Under Firmware, select the PAS_SELC block. Next, drag and drop the block into the editor window.

✧ As soon as you release the mouse button, the mouse pointer changes its shape depending on the
possible plug-in positions.
If the mouse pointer shows a prohibition sign, you cannot insert the block.
If the mouse pointer shows Insert, you can click to insert the block.

Interconnecting a block

✧ Interconnect a connector in the left-hand margin bar with a PAS interface tag representing a command.

✧ Select the IN input of the PAS_SELC block.

✧ Select the related connector with the PAS interface tag in the left-hand margin bar.

✧ In SICAM PAS SoftPLC UI, click Insert > Insert Connection. The IN input of the block is interconnected
with the connector in the margin bar.

CFC11.tif

Fig. 1-12 Example: SoftPLC-internal command

The PAS_SELC block is not completely connected. For example, the outputs can be used to start
switching sequences.

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1.3 Compiling the Project Data into the Destination System

Prior to compilation

All programs which are to be processed must first be linked.

✧ Select the desired program in the Files tag of the project window.

✧ Highlight the selected program and select Link to Active Resource from the context menu.
If the menu item is disabled (shown in gray), the program has already been added to the active resource
(e. g. when inserting a program).

✧ Click the Resources tab.

All programs to be integrated into the task and compiled automatically during each full compilation run
must be shown in the Resources tab.

CFC12.tif

Fig. 1-13 Resources tab with MyCFCProgram

NOTE

Each program must be selected individually and assigned a resource. Multiple selections are not possible. This
step is important for specifying the SoftPLC and must not be forgotten!

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Optimizing the compilation

The following options are available to optimize the compilation process and to adapt it to your requirements:
• Speed only
The machine code is generated directly, debugging is not possible (fast execution).
• Size only
Interpreter code, debugging is possible (slow execution). This is the default setting for test purposes. As
soon as all testing and commissioning tasks have been completed, switch to the normal setting.
• Normal
This setting is an optimization focusing on the existing programming. Both an interpreter code and a
machine code are used.

This setting is performed via the Resources tab.

✧ Select RESOURCE in the project browser.

✧ Hightlight RESOURCE and select Properties from the context menu.

In the Edit Resource - SICAM PAS window, select the desired option under Options.

NOTE
As soon as all programming and test steps have been successfully completed, the system should be switched
to Normal for performance reasons.

Compilation

To compile a project:

✧ Save all programs prior to starting the compilation.

✧ To compile all POUs of a resource:

− In the Resources tab, highlight the resource to be compiled.
− Select Rebuild from the context menu.
✧ To compile only the POUs of a resource which have changed during the last compilation run:
− In the Resources tab, highlight the resource to be compiled.
− Select Build from the context menu.
✧ The compilation process is documented in the output window. If a compilation error occurs, click the error
entry in order to navigate directly to the location of the error in the program.

✧ Remove the error.

✧ Repeat the compilation process.

As soon as you have successfully completed the compilation, the program and the project data are automati-
cally entered in the SICAM PAS database.

The new program is used after a restart of the SoftPLC.

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1.4 Programming with ST, SFC and STL

1.4 Programming with ST, SFC and STL

In the SICAM PAS SoftPLC UI, the following programming languages exist besides the CFC graphic program-
ming language:
• ST
Structured Text
• SFC
Sequential Function Chart
• STL
Statement List

NOTE

For more detailed information on programming with the CFC, SFC, STL and ST programming languages, refer
to the online help of the SICAM PAS SoftPLC UI, ? menu > Content and Index.

1.4.1 Special Procedures for SICAM PAS when Using ST, SFC, STL

Initializing SICAM PAS firmware blocks

All SICAM PAS firmware blocks (names beginning with PAS_) which create an indication, a command or a tim-
er must be initialized during the first computing cycle of the resource. When using CFC, this initialization is per-
formed automatically, since all blocks are compulsorily computed during each computing cycle and thus also
during the first cycle.

A simple call of the corresponding block instance without parameters is sufficient in most cases. However, it is
safer to call up the block instance with those parameters which are also used after the first cycle in order to
create a timer, an indication or a command. However, this is performed without actually creating the timer, the
indication or the command upon initialization.

In the SFC Editor, the first step (initialization step) should be used for this purpose, since this step is always run
during the first cycle. However, this is not a prerequisite for ST and STL.

If a SICAM PAS firmware block is called up in ST or STL code without conditions and the POE is not exited by
a RETURN statement, no explicit initialization is required.

If, however, a SICAM PAS firmware block is called up via one single condition (e.g. IF statement, CASE state-
ment, loop), it is not ensured that the condition is already met during the first computing cycle. In this case, the
instance should be initialized at the beginning of the POE.

If no initialization is performed, it is possible that the blocks can only execute some of their functions or no func-
tions at all later during runtime.

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1.4 Programming with ST, SFC and STL

Using SFC

When using SFC, an instance of the SFC_RunCyclic block (see chapter 10.7) must be created in a comple-
mentary ST, STL or CFC program and called up with a CYCLETIME.

The call-up via the Main.ST program is recommended. This program is automatically included in the project
and already linked by default to the active resource.

In the Main.ST program the call-up can be realized as follows:

VAR
FB_CYCLIC : SFC_RunCyclic;
END_VAR

FB_CYCLIC(CYCLETIME := T#500ms); (* 250ms is the default setting, 10ms * is the

minimum setting)

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Overview

This chapter describes rules and basic principles of the graphical and textual configuration of SICAM PAS in
the SoftPLC. Knowledge of these rules and basics is a necessary prerequisite.

Contents

2.1 Important Information on the Programming of the SICAM PAS SoftPLC 38

2.2 Startup Behavior of the SICAM PAS SoftPLC 39

2.3 POUs and Tasks in the SICAM PAS SoftPLC 40

2.4 SICAM PAS Process Data Structure 44

2.5 Data Types Used in the SoftPLC 47

2.6 Configuration of the Inputs and Outputs 51

2.7 Checking PAS Information 52

2.8 CFC Chart-in-Chart Technology 53

2.9 Reusability of POUs 54

2.10 Online Connection 55

2.11 Online Watching: Watchlist and Control Data Analyzer 56

2.12 Synchronization of Persistent Data between the SoftPLCs in Case of System Redundancy 57

2.13 Restrictions of the SoftPLC UI Programming System 58

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2.1 Important Information on the Programming of the SICAM PAS SoftPLC

2.1 Important Information on the Programming of the

SICAM PAS SoftPLC

Caution

Configuration and consistency rules must be strictly adhered to in order to prevent the creation of erroneous
information or data loss.

The following distinctions must be made for the consistency check of PAS data types:
• Process information, indications, metered values, measured values, derived commands (PASDAT-
ABLOCK)
• Group indications (PASGROUP)
• Commands (PASCOMMANDBLOCK)

The compiler outputs error messages if the SICAM data types are not connected properly.

SICAM PAS UI - Configuration ensures that the tag names are unique.

The syntax of the interconnection of process information (indications, measured and metered values) is
checked. This information is not processed if an error is detected.

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2.2 Startup Behavior of the SICAM PAS SoftPLC

2.2 Startup Behavior of the SICAM PAS SoftPLC

During the startup of the SICAM PAS SoftPLC, a general interrogation is performed for all indications mapped
to the SoftPLC (slave indications) apart from fleeting indications. The current values are read from the central
image of the SICAM PAS system.

Principles

The following principles apply:

• All indications are assigned the General Interrogation cause.
• Indications which have not yet been forwarded to the system (indications without sender) are assigned
the current time stamp and also the not topical and manually updated states.
• Indications from the IEC 61850 protocol with the buffered transmission cause are processed like non-ex-
isting indications during general interrogation, i. e. they are assigned the current time stamp and the not
topical and manually updated states.
• Following a general interrogation of all indications mapped to the SoftPLC (slave indications), the entire
resource is computed twice in order to initialize all SICAM PAS firmware blocks.

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2.3 POUs and Tasks in the SICAM PAS SoftPLC

2.3 POUs and Tasks in the SICAM PAS SoftPLC

POUs

In SICAM PAS SoftPLC UI, all three POU types based on IEC 61131-3 are available for code generation (POU
is the abbreviation for Program Organization Unit).

Since all types have advantages and disadvantages and since many programmers only generated program
POUs in the past due to a lack of knowledge, the use of these types is briefly described in this section. The
following applies for all POU types: POUs must not be called up recursively, i. e. they must not call up them-
selves.

Functions

The simplest POUs are referred to as 'functions'. As a rule, they are used for less complex and frequently oc-
curring logic.

Functions have no memory (i. e. local tags are not saved beyond the function call). They always have a return
value and any number of input parameters. Since they have no memory, functions usually always provide the
same result with the same input connection.

Functions cannot be used for the direct processing of PAS information, but only for the processing of
IEC 61131-3 data types. The code of a function is not copied, but only referenced from other POUs (functions,
function blocks or programs). If the code of a frequently used function is changed, the logic for all POUs which
perform calls also changes.

Functions can only be generated with the STL and ST programming languages.

Examples for functions:

• simple arithmetic operations (e. g. adder, multiplier)
• simple logic operations (e. g. logic AND, logic OR)
• simple conversion functions (e. g. conversion of a UPF time stamp into an online readable time stamp)

Function blocks

Function blocks are particularly important POUs which are often underestimated. The logic can have any de-
gree of complexity. Function blocks can have any number of inputs and outputs, can access global tags and
are suitable for reuse scenarios in the SICAM PAS SoftPLC.

Function blocks are particularly useful for frequently used, identical logics. Contrary to functions, they have a
memory. Local tags of a function block instance are not lost after the call. For the next call, they are available
with the values defined last. Functions usually always provide the same result with the same input connection.
However, this rule does not apply for function blocks, since their result can depend on saved information.

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2.3 POUs and Tasks in the SICAM PAS SoftPLC

The instance principle applies for function blocks, i. e. each instance has its own memory. Any change of the
code of a function block automatically changes all instances, since the code is shared (this means that tags
are assigned per instance, but the code exists only once).

Function blocks can be created using the STL, ST and CFC programming languages. They can call up func-
tions and other function blocks.

Examples for function blocks:

• Command derivations
• Switching sequence checks
• Group indication processing
• Complex arithmetic and logic operations (also with PAS data types)
• Complex conversion functions (e. g. single-point indication into double-point indication or fleeting indica-
tion into short-time single-point indication)
• User blocks for the implicit realization of pre-assignments or conversions (see Describing the PersistentIn-
teger user block, page 176 und Describing the FB_SELC_PERS user block, page 178)

Programs

Programs unite functions and function blocks in a comprehensive and functional logic. They can also feature
any degree of complexity. Function blocks can have any number of inputs and outputs, can access global tags,
but are not suitable for reuse scenarios in the SICAM PAS SoftPLC.

In the programs, global PAS information is usually interconnected with PAS firmware blocks, individual function
blocks and functions (if used). A smooth program code ensures fast processing.

Comprehensive and coherent logic (including function blocks and functions) should always be realized in a pro-
gram and not distributed between several programs.

Contrary to function blocks, a resource always includes one single program of the same type. Contrary to
IEC 61131-3, one single task is always generated from a program in the SICAM PAS SoftPLC, i.e. a program
cannot be assigned several tasks. This would not make sense, since the SICAM PAS SoftPLC currently fea-
tures only one general, event-controlled task.

Programs can be created in all SICAM PAS SoftPLC programming languages (STL, ST, CFC and SFC).

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2.3 POUs and Tasks in the SICAM PAS SoftPLC

Task

One single task exists in the SICAM PAS SoftPLC, which considerably simplifies configuration. During each
call of the SoftPLC, all linked programs are computed.

The task is started event-controlled. The following events are possible:

• New incoming indication/measured value/metered value
• New command/command acknowledgement
• Interlock request
(The central distribution component of the SICAM PAS - DSI Server requests whether a command is in-
terlocked; interlocks are specified via the SoftPLC)
• Timer countdown (e. g. PAS_TIMERSW, PAS_TRANS)

NOTE

A mixed task which can be called up cyclically or event-controlled, can be created by means of the ST block
SFC_RunCyclic (see Chapter 10.7).

Cyclic sequences can be realized via PAS_TIMERSW.

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NOTE

The sequence of a timeout of a PAS_TIMERSW instance initiates another computation of the entire resource.

If several instances are used in a project with short times (less than 1 s), performance problems can occur due
to the frequent computation of the entire resource.

In these cases, only one single PAS_TIMERSW instance should be used in order to trigger the cyclic compu-
tation of the entire resource.

At all other positions in the project, where a relative time trigger is required, the TON, TOF and TP IEC 61131-
3 standard blocks should be used.

Example:

Proceed as follows to use five different time values: 20 ms, 100 ms, 1000 ms, 3 m and 10 m:

Instead of using five instances of the AS_TIMERSW block, you use one single instance with a timing which
corresponds to the greatest common divisor of all timers. In the example, 20 ms should be used.

At all other positions, a trigger block can be programmed by means of the standard blocks. Example for a cyclic
trigger block in ST with a cycle time of one second:
VAR_INPUT
C_TIME: TIME:= T#1000ms; (* default timeout 1 second *)
END_VAR

VAR_OUTPUT
TRIGGER: BOOL; (* this output alternates with every timer timeout *)
END_VAR

VAR
FB_TON_ON: TON; (* instance of IEC 61131-3 TON function block *)
END_VAR

(* call TON always with TRUE here, because we want a cyclic trigger *)
FB_TON_ON(IN:= TRUE, PT:= C_TIME);

(* if cycle has finished *)

IF FB_TON_ON.Q THEN

(* call TON with FALSE to reset cycle *)

FB_TON_ON(IN:= FALSE, PT:= C_TIME);

(* call TON with TRUE, to start timer again *)

FB_TON_ON(IN:= TRUE, PT:= C_TIME);

TRIGGER:= TRUE;
ELSE
TRIGGER:= FALSE;
END_IF;

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2.4 SICAM PAS Process Data Structure

2.4 SICAM PAS Process Data Structure

General

The SICAM PAS process data of the PASDATABLOCK data type is arranged according to a defined structure,
the so-called SICAM PAS process data structure (refer to chapter 2.4.1).

The SICAM PAS process data structure is subdivided in individual, uniquely positioned structure blocks. Struc-
ture blocks comprise information and additional information such as time stamp, status, cause, etc. The unique
position of the structure blocks allows for the unique addressing of different items of partial information within
the SICAM PAS process data structure.

The SICAM PAS process data structure is mapped in the main memory of the PAS hardware by means of a
structured area. The information mapped here and additional information is combined as PAS information and
distributed within the system, i. e. it is available at any location within the PAS system.

Due to the unique structure, i. e. the unique position of the structure blocks within the information structure, spe-
cific PAS firmware blocks can be used to filter partial information from PAS information in order to make it avail-
able for logical links or additional processing steps.

The sections below provide basic information on the process data structure.

2.4.1 Components of the Process Data Structure

The table below explains the components of the process data structure.

Table 2-1 Components of the process data structure

Name Element Meaning Values

MARKER Change marker The change marker is in-

cremented when the
CHANGE Change marker process data structure has
(Bit 0) been processed by a
block.

A A(ddress reference) - de- 0 to 1

termines whether the infor-
mation address refers to
the target address or to the
source address.
0: target-oriented address-
ing,
1: source-oriented ad-
dressing.

CAUSE Cause Cause of transmission of 0 to 127

the item of information

TESTMODE T T(est), identifies whether 0 to 1

data has been created in
the normal mode or in the
test mode.

INITCAT Origin Telegram origin 0 to 127

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2.4 SICAM PAS Process Data Structure

Table 2-1 Components of the process data structure

Name Element Meaning Values

STATUS Status 0 to 255

Status of information

EXSTATUS Extended status 0 to 255

ADDCAUSE Additional cause Detailed cause specifica- 0 to 127

tion if required

Reserve byte Filler byte due to the even 0 to 255

word addresses

VALTYPE Value type Value type 0 to 255

0: The value is irrelevant

TIMETYPE Type of time Type of time 0 to 3

0: no time

IDTYPE ID no type Type of identification 0 to 7

number
0: ID number irrelevant

SUPPTYPE Additional Type of additional informa- 0 to 7

information type tion
0: Irrelevant additional in-
formation

DW_VALUE Value (INTEGER) Information whose struc- 0 to 4294967295 for INTEGER

ture is determined by the 1.175494351 E – 38 to
R_VALUE Value (REAL) value type 3.402823466 E + 38 for REAL

TIMELOW Time stamp Precision: 0.1 milliseconds 0 to

(Bits 16 to 47) The time in the entire 248-1
TIMEHIGH system is synchronized via The count starts
Time stamp the runtime system. The as of Jan. 1, 1990, 0.00 h
(Bits 0 to 15) UTC/GMT time stamp is
used.

IDNO Identification Depending on the ID no. 0 to 65535

number type:
- Fault number
- Feedback identification
- GI cycle

SUPPINFO Additional Depending on the type of 0 to 65535

information additional information:
- Relative time since the
beginning of fault
- Cause source

An overview of the available component variants and their significance is provided in Appendix A.1.

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2.4 SICAM PAS Process Data Structure

2.4.2 Showing the Contents of the Process Data Structure

Process data (indications, commands, etc.) to be further processed in the SoftPLC can consist of one or several
process data structure blocks.

Indications, measured and metered values

Indications, measured values, metered values or command derivations (PAS_CRCOM block) always consist
of one single process data structure block. The PAS_SASS automation block splits PAS information and shows
the individual structure elements (see Chapter 6.2).

Commands

Commands in the PASCOMMANDBLOCK SICAM PAS data format consist of several process data structure
blocks (composed command structure).

Command structures can be read with the PAS_CMD_STRUCT block.

2.4.3 Pointers

General

In SICAM PAS, a process data structure block is referred to as PAS information. Each item of PAS information
is stored at a specific location within the main memory of the SoftPLC. By means of the address, this position
is uniquely assigned and can be identified.

No data records are transmitted for the mapping of PAS information via the SICAM PAS SoftPLC. Pointers are
set to the corresponding addresses instead. The data transfer between the blocks or the task and the items of
PAS information is restricted to the transfer of addresses, i. e. of scalable values.

This address transfer is represented on the graphical user interface of the SoftPLC as follows:
• Only addresses are entered in the margin bars of the SoftPLC user interface, i. e. pointers are set.
• The pointers are connected to the inputs or outputs of the blocks.

Left-hand margin bar Right-hand margin bar

&A B &B C &C

&A &C

A
Pointers
PD structure

zeiger.cdr

Fig. 2-1 Access to the process data structure via pointers

NOTE

In the following text, the term pointer refers to the address of an item of PAS information (i. e. of a process data
structure block) in the main memory of the SoftPLC.

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2.5 Data Types Used in the SoftPLC

2.5 Data Types Used in the SoftPLC

General

The inputs and outputs of the SICAM PAS automation blocks process different data types depending on the
type of the incoming or outgoing signals. Possible data types are listed below:
• BOOL (BO)
• BYTE (BY)
• WORD (W)
• DWORD (DW)
• INTEGER (I)
• REAL (R)
• TIME (TI)
• STRING
• PASDATABLOCK
• PASCOMMANDBLOCK
• PASGROUP
• PASSTATELINK

NOTE

A summary of further data types according to EC 61131 is available in the chapter Data Types According to
IEC 61131, page 270.

2.5.1 BOOL(BO) Format

A tag of the type BOOL consists of 8 bits.The tag format for direct configuration is indicated in the following
table:

Table 2-2 BOOL tag format

Input format Representation

in the chart

FALSE FALSE

TRUE TRUE

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2.5.2 BYTE(BY) Format

A tag of the type BYTE consists of 8 bits. The tag format for direct configuration is indicated in the following
table:

Table 2-3 BYTE tag format

Value range Input format Representation

from ... to (default: Dec.) in the chart

0 to 255 dec. 28 28

2.5.3 WORD(W) Format

A tag of the type WORD includes 16 bits. The tag format for direct configuration is indicated in the following
table:

Table 2-4 WORD tag format

Value range Input format Representation

from ... to (default: Dec.) in the chart

0 to 65535 dec. 41683 41683

2.5.4 DWORD (DW) Format

A tag of the type DWORD (double word) includes 32 bits. The tag format for direct configuration is indicated in
the following table:

Table 2-5 DWORD tag format

Value range Input format Representation

from ... to (default: Dec.) in the chart

0 to 4294967295 dec. 85000 85000

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2.5.5 INTEGER(I) Format

A tag of the type INTEGER includes 16 bits. The tag format for direct configuration is indicated in the following
table:

Table 2-6 INTEGER tag format

Value range Input format Representation in the

from ... to (default: Dec.) chart

-32768 to 32767 dec. 4099 4099

2.5.6 REAL(R) Format

A tag of the type REAL includes 32 bits. The tag format for direct configuration is indicated in the following table:

Table 2-7 REAL tag format

Value range Input format Representation in the

from ... to (default: Dec. 10#..) chart

-3,40282e+38 to -1,1755e-38 22.78 2.278e1

0
1,1755e-38 to 3,40282e+38
-1234522.456789 -1.2345224e6

-3.456e-3 -3.456e-3

2.573e19 2.573e19

2.5.7 TIME(TI) Format

A tag of the type TIME includes 32 bits. Input in the following format (during programming):

Table 2-8 TIME tag format

Value range Input cormat Representation

from ... to in the chart

± 24.85 d T#5h4m12s23ms T#5h4m12s23ms

T#123456789ms T#3h25m45s678ms

1 ms to 2147483647 ms T#2h T#2h

T#32m5s T#32m5s

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2.5 Data Types Used in the SoftPLC

2.5.8 STRING Format

The tag format for direct configuration is indicated in the following table:

Table 2-9 STRING tag format

Value range Input format Representation in the

chart

ASCII ’C:\SIEMENS\Temp’ ’C:\SIEMENS\Temp’

NOTE

A STRING can be a maximal length of 253 characters.

2.5.9 SICAM PAS Data Types

Table 2-10 SICAM PAS data types

Data type Description

PASDATABLOCK Pointer to process information

PASCOMMANDBLOCK Pointer to command information

PASGROUP Pointer to group information

PASSTATELINK Pointer to PAS_STATE management structure

NOTE

For inputs and outputs of PAS firmware blocks where pointers have been applied to a PASDATABLOCK, PAS-
COMMANDBLOCK, PASGROUP or PASSTATELINK, the compiler issues an error message in
SICAM PAS SoftPLC UI if incorrect connections have been programmed.

An error message is only issued in case of an incorrect interconnection of the structure types. However, the
compiler in SICAM PAS SoftPLC UI does not check if an incorrect interconnection exists within the same struc-
ture type.

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2.6 Configuration of the Inputs and Outputs

2.6 Configuration of the Inputs and Outputs

General

The inputs and outputs can be configured directly. The permitted tag format depends on the data type and is
explained in the sections describing the individual data types (see Chapter 2.5).

To directly configure the inputs of the SICAM PAS firmware blocks:

CFC

To pre-assign another value for an input on the block:

✧ Double-click on the input and enter the desired value in the input box. Be aware of the admissible data
type for the input value.

✧ Press the ENTER key. The input with the new value is shown in gray.

ST, SFC and STL

In the program code, the block is programmed via the function call.

NOTE

Before configuring and interconnecting the inputs and outputs of blocks, read the descriptions of the related
automation blocks in chapter 3 to chapter 8 or table A-11 on page 268 in Appendix A.

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2.7 Checking PAS Information

2.7 Checking PAS Information

Check

The following section explains how to check PAS information transmitted to the automation blocks (process
data structure block):
• Polls of the change marker of the incoming PAS information:
If no change occurs, the processing is canceled.
• Plausibility check of the input tags:
• The input tag type is checked. Type errors are fatal errors.
• Processing of additional information:
The status byte is required to display warnings and errors. All warnings and errors are added to the out-
going indication. If the incoming indication is marked as INVALID, the outgoing indication is also marked
as INVALID. Each modified item of PAS information starts the processing of the value. The time stamp
of the incoming PAS information is copied to the outgoing information.
• If no error status was determined by the processing of additional information, the value is calculated. An
overflow during calculation is detected as an error and the corresponding error status is set.

Error processing

The response of the system depends on the error type:

• Fatal errors are mainly due to erroneous interconnections of the blocks, e. g. if the mandatory upstream
connection of an input has not been performed. If a fatal error occurs, the error information is output on
the DIAG output (refer to Appendix A.2). No information is processed in the block.
• Errors occur if an item of PAS information on one of the inputs has an error status or if an overflow occurs
during the result calculation. After an error, the value is not calculated, and only additional information is
processed.
• Warnings cannot prevent any calculation, but can only be forwarded to outgoing indications.

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2.8 CFC Chart-in-Chart Technology

2.8 CFC Chart-in-Chart Technology

Compound block

Compound blocks extend a CFC and provide for the consistent structuring a CFC. These blocks can be used
in order to significantly extend the size of a CFC. Consider the following aspects:
• When copying a compound block, the entire logic (CFC code) is copied, i. e. changes in a copied block
do not automatically influence all copied instances (in contrast to function blocks or functions).
• By copying a compound block, the code of the POU is doubled with regard to the logic behind the block.
However, a POU must not exceed the code size of 64 kilobytes in compiled state!
• Compound blocks cannot be exported!
• They must be considered like a GOTO in high-level languages and should only be used if no other option
can be applied for the extension or wrapping of functions.
• 90% of the compound blocks used in existing projects are not required and could be replaced through an
optimized logic or through the use of function blocks / functions providing significant benefits in this con-
text.

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2.9 Reusability of POUs

2.9 Reusability of POUs

POUs (programs, function blocks, functions and global tag declarations) can be conveniently reused. However,
this hardly ever makes sense for programs.

Export

To export a program:

✧ Select the program in the project browser of the SICAM PAS SoftPLC UI.

✧ Right-click the program and then select Properties from the context menu.
The Save as window opens.

✧ The program can be saved in any directory.

Import

To import a program:

✧ In the SICAM PAS SoftPLC UI, click on File > Import File.
The imported file is shown in the project navigator.

NOTE

The interconnection via the margin bar is an integral part of the CFC program. It is imported or exported auto-
matically together with the program.

NOTE

If a mere code file is imported without the related POU file, the code file must be opened once after the import
in order to perform a manual syntax check. This creates the POU file.

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2.10 Online Connection

2.10 Online Connection

A Siemens online connection is set up by default. The Siemens online connection ensures that the user can
connect to a SoftPLC on the same computer. The settings of the connection must be adjusted for remote mon-
itoring. To change the connection settings, proceed as follows:

✧ In SICAM PAS SoftPLC UI, click on PLC > Connections.

The Connection Setup window opens.

TCP is the default driver and permanently set on the local computer.

CFC17.tif

Fig. 2-2 Dialog window for setting up a connection

In case of an online connection to another computer:

✧ In the Connection Setup window, click on Edit. The Edit Connection window opens.

✧ Click on Settings. The TCP Settings window opens.

✧ Enter the IP address or the name of the other computer.

✧ Click on OK to confirm. The online connection is established.

CFC18.tif

Fig. 2-3 Dialog window for defining TCP settings

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2.11 Online Watching: Watchlist and Control Data Analyzer

2.11 Online Watching: Watchlist and Control Data Analyzer

In order to watch variables in the watchlist in online mode and also for using the CDA (Control Data Analyzer),
the Download Symbol Table option must be activated in the resource properties prior to compiling the re-
source.

EditResourceProperties.tif

Fig. 2-4 Edit resource specifications

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2.12 Synchronization of Persistent Data between the SoftPLCs in Case of System Redundancy

2.12 Synchronization of Persistent Data between the SoftPLCs in Case

of System Redundancy

Behavior with parameterized system redundancy

If system redundancy has been defined via the related parameters, the redundant SoftPLCs are operating in a
redundancy mode which slightly differs from non-redundant operation.

Although both SoftPLCs are provided with up-to-date process data and compute the parameterized logic, the
standby SoftPLC does not initiate any process outputs: Interlock requests always get a positive response, but
are suppressed in the application layer of the SoftPLC application. Since this occurs in the application layer,
the actual logic is, however, not influenced.

Optimal/non-optimal parallel operation

In the optimal case that both systems start up almost simultaneously, the states in the logics will always be al-
most identical. The restriction ’almost’ means that slight time deviations can nevertheless occur, and this is
even generally the case with a non-realtime operating system.

Since optimal parallel operation is not always possible, deviations can occur in the logics because the logics
are working with different process values or value histories. For example, it is possible that a setpoint value was
defined while the standby SoftPLC was not active due to maintenance work and therefore unable to realize
these value changes.

Persistent data (RETAIN data)

If system redundancy has been defined via the related parameters, the persistent data of the SoftPLC, i.e. the
so-called RETAIN data, is synchronized by the master SoftPLC upon the startup of the standby SoftPLC. This
means that up-to-date, persistent values stored in the master SoftPLC are transmitted to/received from the
standby SoftPLC. This is particularly important for setpoint values and the states of finite state machines in or-
der to ensure their synchronism even if the two systems did not start up parallely or if one of them has been
inactive for a long time.

NOTE

Be aware that - even in case of redundancy - a startup update of the process values is performed only for Soft-
PLC messages. This means that the current images of setpoint values (marker commands), derived com-
mands, messages generated by the SoftPLC and group indications are not available for the non-process
controlling SoftPLC (standby SoftPLC) during the startup phase! A synchronization of these values must there-
fore always be performed with persistent data (RETAIN data)!

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2.13 Restrictions of the SoftPLC UI Programming System

2.13 Restrictions of the SoftPLC UI Programming System

2.13.1 Basic Principles

As a rule, a POU consists of three memory blocks (segments):
• Initial data segment (internal preassignments for the data of the data segment)
• Data segment (tags, block instances, etc.)
• Code segment (i.e. the actual function code)

A block type consisting of three instances, for example, includes one code segment (same code), one initial
data segment (same internal pre-assignments) and three data segments (i.e. the instance data).

In compiled state, a segment must not be greater than 64 kilobytes.

NOTE

At the end of the compilation process, the compiler outputs the total size of the resource and the reserved data
segments. This output includes all segments and the additional memory required on the controller for internal
segments, segment tables, etc.

The compiler shows that maximum segment sizes have been exceeded.

Only in native code it is possible to exceed the limit of 64 kilobytes for code segments by combining several
code segments. This is performed automatically by the compiler of the programming system. The optimization
of the task or resource must be set to "speed".

2.13.2 Recommendations for Optimized SoftPLC Programming

Code size

The following rules must be observed in order to achieve an optimal code size:
• Use the data type which meets the requirements of the functionality and has the lowest possible memory
requirements, refer to Data Types According to IEC 61131, page 270.
• Use function blocks instead of compound blocks (chart-in-chart technology) and therefore swap out the
code from program POUs into function blocks.

Performance

The following applies for optimal performance:

• The number of PAS_TIMERSW blocks should be kept as low as possible, as each PAS_TIMERSW
timeout triggers a recalculation of the entire resource.
Only use the instance with the lowest cycle time and implement the time control via TON, TOF or TP in-
stances, refer to the related note in chapter 2.3.

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2.13 Restrictions of the SoftPLC UI Programming System

2.13.3 General Restrictions

The following general restrictions apply:
• Length of an identifier (name of a POU, tag, ... ) : 256 characters

NOTE

The programming system distinguishes only the first 64 characters of an identifier.

• Maximum number of dimensions in an array: 6

• Maximum size of an array and a structure: 64 KB
• Maximum STRING length: 253 characters
• Maximum data volume of tags per POU: 64 KB
• Maximum number of tasks (TASK -> program linked with resource): 255
• Maximum number of type definitions (data types, program types, function block types, function types) per
task (or resource): 30000

2.13.4 Segmentation-Oriented Restrictions

A task can include up to 8192 segments.

Assuming that different instances are created for each type used, three segments per type are required (code,
data, initial data). If several instances of the same type are created, only one further segment per instance is
required (data).

When compiling into native code, a native code segment is created for each CS. An average number of three
segments per instance is therefore assumed.

The following restrictions apply:

• Maximum number of instances (function blocks, functions) per task: 8192 segments.
With an assumed average of three segments per instance used, approximately 2730 function blocks/func-
tions can be used.
• Maximum code size (UCode: compiled code with "size only" optimization) per POU: 64 KB
• Maximum task size: 3 * 64 KB = 192 KB (initial data, data and code segment)
• Maximum number of type definitions (data types, program types, function block types, function types) per
task (or resource): 30000

2.13.5 Editor-Specific Restrictions

The following restriction applies for the SFC editor:
• up to 100 steps and 100 transitions per chart

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2.13 Restrictions of the SoftPLC UI Programming System

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3 Commands

Overview

This chapter explains the SICAM PAS blocks of the command block group. They are used for the creation and
editing of commands. The examples below illustrate how to use the individual blocks.

Contents

3.1 Command Processing Concept 62

3.2 PAS_CRCOM - Command Derivation 63

3.3 PAS_COMMCP - Command Output to the Process 70

3.4 PAS_COMMCP_EX - Command Output to the Process 74

3.5 PAS_SELC - Marker Command for the SoftPLC 77

3.6 PAS_SELC_EX - Marker Command for the SoftPLC 80

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3.1 Command Processing Concept

3.1 Command Processing Concept

Command processing in the SoftPLC includes the following functions:
• Command check and interlocking
− Event interlocking
− Switching direction check
− Switchgear interlocking
• Issue of command jobs to the command output

Command jobs

Command jobs are divided into two groups:

• Commands to the Process
• System-Internal Commands

3.1.1 Commands to the Process

Commands to the process include all commands which are output directly to the substation components and
which change the process state (configuration via the PAS_COMMCP block). These include:
• Switching commands
for the control of circuit breakers, disconnectors and isolators
• Tap commands
for setting higher or lower transformer taps
• Adjusting commands
with a configurable runtime for the control of e-coils
• Specifying the switching authority
• Setting ADMIN tags

3.1.2 System-Internal Commands

System-internal commands do not cause direct command outputs to the process. They are used to enable sys-
tem-internal functions for the communication of status changes to the system or for their acknowledgement (in
case of a configuration via the PAS_SELC block).

Marker commands

The system-internal command is a type of marker command. They are set for specifying the information value
of system-internal objects, e. g.:
• for parameter changeovers or for the clearing/pre-assignment of metered values

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3.2 PAS_CRCOM - Command Derivation

3.2 PAS_CRCOM - Command Derivation

CFC view

PAS_CRCOM.tif

Fig. 3-1 PAS_CRCOM block

3.2.1 Function
Based on Boolean input signals, the PAS_CRCOM block creates command structures (CM) for the derivation
of commands. The command derivation depends on the input connection of the block. Three inputs (one indi-
cation input, two Boolean inputs) are available, one of which must be connected.

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3.2 PAS_CRCOM - Command Derivation

Creating a command

The command block is created on the output depending on the selected input:
• INDIC
Depending on the configuration of the INVERT input, INDIC creates a command block upon the rising
edge (RAISED indication, INVERT = FALSE) or clearing edge (CLEARED indication, INVERT = TRUE)
of a single- or double-point indication.
• SEND
creates a command block only with a rising edge, i. e. when the value of the input changes from FALSE
to TRUE.
• CHANGE
always creates a command block when the change marker changes, i. e. from FALSE to TRUE or from
TRUE to FALSE.

Command derivation

To derive the created command, the OUTPUT output must be connected with the COMM input of a down-
stream PAS_COMMCP, PAS_ACQ (restoring of metered values) or PAS_SELC block (derivation of SoftPLC-
internal commands). In order to connect more than one PAS_CRCOM to a command block, a PAS_MUXTEL
block must connected between them (refer to PAS_MUXTEL).

Additionally, the IN input of this downstream block must be connected to the left-hand margin bar of the Soft-
PLC.
The OUT output for PAS_COMMCP must be connected to the right-hand margin bar - CFC/output tag - ST/
STL of the SoftPLC.

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3.2 PAS_CRCOM - Command Derivation

3.2.2 Connections

Inputs

Table 3-1 Inputs of the PAS_CRCOM command block

Name Data Type Function/Note Pre-

Protocol Type assignment

EN BOOL This input activates the block. The input assignment is for- TRUE
warded to the ENO output.
FALSE = block disabled
TRUE = block enabled

INDIC PASDATABLOCK Indication input for initiating a command (pointer to FALSE

SP, DP PAS information)

INVERT BOOL Configuration input for inverting the indication status FALSE
FALSE = no inversion
RAISED indication → command ON
CLEARED indication → command OFF
TRUE = inversion
RAISED indication → command OFF
CLEARED indication → command ON

TRIGGER BOOL The indication input is used as a trigger for the command FALSE
output. The value of the command is predefined by the
DW_VALUE and BO_VALUE inputs.

NOTE
The indication value does not influence the command value.

SEND BOOL If the value of the input changes from FALSE to TRUE (rising FALSE
edge), a command block (CM) is created.

NOTE
Must be connected if CHANGE is not connected and must
not be connected if CHANGE or INDIC are connected!

CHANGE BOOL Change marker FALSE

A command block is created if the value of the change
marker changes.

NOTE
Must be connected to the CHANGE output of another block if
SEND is not connected. Must not be connected if SEND or
INDIC are connected!

CAUSE BYTE Cause of command 0

NOTE (With
Must be configured! command 19)

TESTMODE BOOL Test mode FALSE

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3.2 PAS_CRCOM - Command Derivation

Table 3-1 Inputs of the PAS_CRCOM command block

Name Data Type Function/Note Pre-

Protocol Type assignment

INITCAT BYTE Initiator Category 4

Command origin

ADDCAUSE BYTE Additional Cause 0

STATUS BYTE Status 0

VALTYPE BYTE Value Type 0

NOTE The correct

Must be configured! value
depending on
of the
command type
is specified in
this box
(refer to the
Appendix).

TIMETYPE BYTE Type of TIme 0

IDTYPE BYTE Type of identification number 0

SUPPTYPE BYTE Type of the additional information 0

DW_VALUE DWORD The value is interpreted as a double word (32 bits) and the 0
command is updated for this value.

NOTE
Must be configured! If the value of the command derivation is
not determined via the created indication (INDIC).

BO_VALUE BOOL Least significant bit of a value FALSE

Caution:
BO_VALUE
influences the
least significant
bit of
DW_VALUE!

EXSTATUS BYTE Extended Status 0

TIMELOW DWORD Time stamp (bits 16 to 47). 0

NOTE
The internal system time is entered if the input is not as-
signed.

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3.2 PAS_CRCOM - Command Derivation

Table 3-1 Inputs of the PAS_CRCOM command block

Name Data Type Function/Note Pre-

Protocol Type assignment

TIMEHIGH WORD Time stamp (bits 0 to 15) 0

IDNO WORD Identification Number 0

SUPPINFO WORD Additional Information 0

Outputs

Table 3-2 Outputs of the PAS_CRCOM command block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

OUTPUT PASDATABLOCK The output issues a command structure.

NOTE
Must be connected to the COMM input of a downstream command block!

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3.2 PAS_CRCOM - Command Derivation

3.2.3 Example

Command derivation

In the example below, the Boolean logic controls the command derivation. When the Boolean signal rises, a
switch ON or OFF occurs after each second Boolean signal.

Beispiel1_BoolSignal.tif

Fig. 3-2 Example of a command derivation

Description

PAS_CRCOM block

The Boolean signal is transmitted via the INDIC input of the block.
The EN input is assigned the value TRUE, the CAUSE input is assigned 19, the INITCAT input is assigned 4
and the VALTYPE input is assigned 14.
The command derivation is performed via the OUTPUT output to the COMM input of the PAS_COMMCP block.

PAS_COMMCP block

This block issues the command via the OUT output.

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3.2 PAS_CRCOM - Command Derivation

Persistent command

In the example below, a persistent command is created from an indication.

Beispiel2.tif

Fig. 3-3 Example of a persistent command

Description

PAS_CRCOM block

The following inputs are assigned related values: EN input=TRUE, CAUSE input=19, INITCAT input=4,
VALTYPE input=13.

An indication is present directly on the INDIC input. Depending on whether the indication has been switched
ON or OFF, a persistent command is transmitted to the PAS_COMMCP block via OUTPUT. An inverted output
is performed if the INVERT input is assigned TRUE.

PAS_COMMCP block

The persistent command is issued via the OUT output.

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3.3 PAS_COMMCP - Command Output to the Process

3.3 PAS_COMMCP - Command Output to the Process

CFC view

PAS_COMMCP.tif

Fig. 3-4 PAS_COMMCP block

3.3.1 Function
The PAS_COMMCP block has three tasks:
1. Transmission of commands in case of a command derivation (in combination with PAS_CRCOM,
PAS_STATE)
2. Interlock check for the PAS distribution system (DSI server; the DSI server requests whether the LOCK,
REL_ON, REL_OFF inputs allow for a switching of the command)
3. Configuration of switchgear interlocks in the SoftPLC.
In this context, the block receives a message when commands are connected externally. It updates the OK,
ERR and ACTIVE outputs accordingly.
The PAS_COMMCP block is used for all commands (slave functionality) transmitted by the SoftPLC (to other
drivers, command derivation) as well as for the configuration of interlocks.

The ACTIVE, OK and ERR outputs are updated both for commands triggered by the SoftPLC, e. g. command
derivation, and for commands which are not triggered by the SoftPLC, e. g. HMI.

The PAS_COMMCP block detects whether and which commands have been activated.

In SICAM PAS, the central DSI server monitors the command process. It ensures a consistent command exe-
cution and has a monitoring time (SICAM PAS UI Configuration). Monitoring times are not configured in the
SoftPLC!

The PAS_COMMCP block ensures the processing of command interlocks. The interlock is independent of the
command processing. If a command which is to be connected as TO BE LOCKED has been configured in the
PAS system, the DSI server transmits a request to the SoftPLC in order to find out whether the command has
been released. A PAS_COMMCP block must be specified for this command in the SoftPLC. It processes the
request and checks the LOCK, REL_ON and REL_OFF inputs. If they allow switching, the DSI server receives
a positive acknowledgement. If this is not the case, the response is negative. It is not relevant for the interlock
function whether a command is active or not.

NOTE

All slave commands and interlocks are specified using the PAS_COMMCP block.

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3.3 PAS_COMMCP - Command Output to the Process

3.3.2 Connections

Inputs

Table 3-3 Inputs of the PAS_COMMCP command block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

LOCK BOOL General interlocking FALSE

A 1-of-n check of the command output can be performed with this
input (TRUE-active).

NOTE
For the general interlock, the LOCK input must be connected to one
of the ION, IOFF or NOT_DBI outputs of an INDIC block (depending
on the circuit logic) which determine the current status of a switch.
If TRUE is present on the LOCK input, it is locked and an incoming
command job receives a negative acknowledgement.
All commands are accepted if the LOCK input is not connected.

REL_ON BOOL Switchgear interlocking for ON command TRUE

FALSE = locked
TRUE = unlocked

REL_OFF BOOL Switchgear interlocking for OFF command TRUE

FALSE = locked
TRUE = unlocked

COMM PASDATABLOCK Input for derived command structure (CM) 0

NOTE
Can be connected to the OUTPUT output of a PAS_CRCOM block.

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3.3 PAS_COMMCP - Command Output to the Process

Outputs

Table 3-4 Outputs of the PAS_COMMCP command block

Name Data Type Function/Note

Protocol Type

MARKER DWORD Number of commands transmitted to the block

OUT PASCOMMANDBLOCK The output sets a pointer to the address of a command structure
all command types (PAS information). It consists of several process data structure blocks.

NOTE
Must be interconnected, i. e. the output is connected to the right-hand
margin bar of the CFC!

ACTIVE BOOL As soon as a command is active, this output is TRUE. Otherwise, it is

FALSE.

OK BOOL After a successful command (COE+), this output is TRUE during one poll.

ERR BOOL After an incorrect command (COE-), this output is TRUE during one poll.

DIAG WORD This output visualizes Diagnostic Information (refer to Appendix A.2).

3.3.3 Miscellaneous

Error processing

Non-connected inputs are checked. If inputs which must be connected in order to ensure the proper functioning
of the block are not linked or linked incorrectly, no information is processed in the block. The error information
is output on the DIAG diagnostic output (refer to Appendix A.2).

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3.3 PAS_COMMCP - Command Output to the Process

3.3.4 Example

Issuing a switching command

For a PROFIBUS FMS bay device, a command must be derived for two switching sequences. The command
derivation is connected via the COMM input and the PAS_MUXTEL block.

Beispiel3.tif

Fig. 3-5 Example: Issuing a switching command

Description

PAS_MUXTEL block

The switching commands of the switching sequences are present on the IN1 and IN2 inputs. The
PAS_MUXTEL inputs feature an OR logik, i. e. as soon as a switching command is present, it is forwarded via
the OUT output to the COMM input of a downstream command block.

PAS_COMMCP block

Via its COMM input, the block receives the derived command of the switching sequences. As soon as a switch-
ing command arrives, it is forwarded via the OUT output, i. e. the output is linked to an item of PAS information.

NOTE

The derived commands are only issued if the interlock conditions do not prevent this (LOCK, REL_ON,
REL_OFF).

Each slave command mapped to the SoftPLC automatically uses the DSI server interlock check. Consequently,
no interlock check can be performed if a slave command is mapped to the SoftPLC without being connected
to a PAS_COMMCP block.
The following rule applies: All slave commands of the SoftPLC must be interconnected with a PAS_COMMCP
in a program.

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3.4 PAS_COMMCP_EX - Command Output to the Process

3.4 PAS_COMMCP_EX - Command Output to the Process

CFC view

PAS_COMMCP_EX.tif

Fig. 3-6 PAS_COMMCP block, example

3.4.1 Function
Apart from one exception, a PAS_COMMCP_EX block works according to the same principles as a
PAS_COMMCP block (see chapter 3.3). Using the PAS_COMMCP_EX block, an additional switchgear inter-
lock can be made by means of the originator (refer to Originator category). If the command is triggered by an
originator which does not correspond to the one on the REL_ICAT input or to one of the specified exceptions,
the command receives a negative acknowledgement with the additional cause Violation of Switching Au-
thority (99).

The originators SoftPLC (4) and Originator irrelevant (0) are never considered for the additional switchgear
interlock.

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3.4 PAS_COMMCP_EX - Command Output to the Process

3.4.2 Connections

Inputs

Table 3-5 Inputs of the PAS_COMMCP_EX block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

LOCK BOOL General interlocking FALSE

A 1-of-n check of the command output can be performed with
this input (TRUE-active).

NOTE
For the general interlock, the LOCK input must be connected
to one of the ION, IOFF or NOT_DBI outputs of an
INDIC block (depending on the circuit logic) which determine
the current status of a switch.
If TRUE is present on the LOCK input, it is locked and an in-
coming command job receives a negative acknowledgement.
All commands are accepted if the LOCK input is not connect-
ed.

REL_ON BOOL Switchgear interlock for ON command TRUE

FALSE = locked
TRUE = unlocked

REL_OFF BOOL Switchgear interlock for OFF command TRUE

FALSE = locked
TRUE = unlocked

REL_ICAT BYTE Initiator Category 0

Originator exempted from the additional switchgear interlock

NOTE
The originators SoftPLC (4) and Originator irrelevant (0)
are never considered for the additional switchgear interlock.

COMM PASDATABLOCK Input for derived command structure (CM) 0

NOTE
Can be connected to the OUTPUT output of a
PAS_CRCOM block.

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3.4 PAS_COMMCP_EX - Command Output to the Process

Outputs

Table 3-6 Outputs of the PAS_COMMCP_EX block

Name Data Type Function/Note

Protocol Type

MARKER DWORD Number of commands transmitted to the block

OUT PASCOMMANDBLOCK The output sets a pointer to the address of a command structure
all command types (PAS information). It consists of several process data structure blocks.

NOTE
Must be interconnected, i. e. the output is connected to the right-hand
margin bar of the CFC!

ACTIVE BOOL As soon as a command is active, this output is TRUE. Otherwise, it is

FALSE.

OK BOOL After a successful command (COE+), this output is TRUE during one poll.

ERR BOOL After an incorrect command (COE-), this output is TRUE during one poll.

ICAT BYTE Initiator Category

Command originator

DIAG WORD This output visualizes Diagnostic Information

(refer to Appendix A.2).

3.4.3 Miscellaneous

Error processing

Non-connected inputs are checked. If inputs which must be connected in orderto ensure the proper functioning
of the block are not linked or linked incorrectly, no information is processed in the block. The error information
is output on the DIAG diagnostic output (refer to Appendix A.2).

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3.5 PAS_SELC - Marker Command for the SoftPLC

3.5 PAS_SELC - Marker Command for the SoftPLC

CFC view

PAS_SELC.tif

Fig. 3-7 PAS_SELC block

3.5.1 Function
This block is used for SoftPLC-internal commands such as marker commands, setpoint commands (e. g. com-
mand with setpoint input to the SoftPLC logic) or commands for starting a switching sequence. It cannot be
used for slave commands.

The block sets a trigger pulse for each valid pending command. This pulse is reset during the next trigger of
the task. To obtain a trigger pulse only for a positive or negative edge, an AND_operation must be performed
with the BO_VALUE output.

Two special inputs control the command end:

• TERM_POS (pre-assignment TRUE)
• TERM_NEG (pre-assignment FALSE)

A command is terminated if either the TERM_POS input (command successful) or the TERM_NEG input
(command unsuccessful) is set to TRUE. This has the advantage that the command does not need to be ter-
minated in the same task execution (e. g. switching sequence) in which the command was triggered. The com-
mand is only terminated when the signal rises.
If TERM_POS is set to TRUE, each command can still be terminated positively in the same task execution.
After the termination of a command, the ACTIVE output switches back to FALSE.

To prematurely cancel running commands which have not yet received positive or negative acknowledgement,
the PAS_SELC block can process cancel commands. The current command is canceled by means of a cancel
command. The ACTIVE output is set to FALSE and the TRM_TRIG output for this task execution is set to
TRUE.

The cancel option ensures that the PAS_SELC block is suitable for switching sequence commands.The actual
switching sequence is realized by means of the PAS_STATE and PAS_TRANS blocks. The PAS_SELC block
initiates this network.

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3.5 PAS_SELC - Marker Command for the SoftPLC

3.5.2 Connections

Inputs

Table 3-7 Inputs of the PAS_SELC block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

LOCK BOOL General interlock, 1-of-n-check (TRUE-active) FALSE

NOTE
Can be interconnected with the ACTIVE output of other
command blocks!

REL_ON BOOL Switchgear interlock for ON command TRUE

FALSE = locked
TRUE = unlocked

REL_OFF BOOL Switchgear interlock for OFF command TRUE

FALSE = locked
TRUE = unlocked

COMM PASDATABLOCK Input for derived commands 0

NOTE
Can be connected to the OUTPUT output of a
PAS_CRCOM block!

IN PASCOMMANDBLOCK Input for commands 0

all command types (pointer to PAS information)

NOTE
Must be connected!

TERM_POS BOOL TERM_POS = TRUE TRUE

The command is terminated successfully.
By default, this value is set to TRUE, i. e. a positive command
acknowledgement is output with CO+ COE+ after the receipt.

TERM_NEG BOOL TERM_POS = TRUE FALSE

The command is terminated with a negative acknowledge-
ment.

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3.5 PAS_SELC - Marker Command for the SoftPLC

Outputs

Table 3-8 Outputs of the PAS_SELC block

Name Data Type Function/Note

Protocol Type

ACTIVE BOOL After the termination of a command:

Changeover from TRUE to FALSE.

MARKER DWORD Change marker

The marker is increased by 1 when a command is received.

CMD_CHG BOOL Toggles with every successful command initiation.

BO_VALUE BOOL Value output least significant bit

DW_VALUE DWORD Value output Double word

R_VALUE REAL REAL value output

CMD_TRIG BOOL Upon the start of a command:

Changeover from ACTIVE to TRUE.
Only valid for the length of a poll.

TRM_TRIG BOOL The running command is canceled prematurely.

Changeover from ACTIVE to FALSE.
TRM_TRIG = TRUE
Only valid for the length of a poll.

DIAG WORD This output visualizes Diagnostic Information (refer to Appendix A.2).

3.5.3 Miscellaneous

Error processing

Non-connected inputs are checked. If inputs which must be connected in order to ensure the proper functioning
of the block are not linked or linked incorrectly, no information is processed in the block. The error information
is output on the DIAG diagnostic output (refer to Appendix A.2).

3.5.4 Example
Refer to Chapter 11.4, Transformer Switching,
refer to Chapter 11.2, Switching Sequences of the SoftPLC

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3.6 PAS_SELC_EX - Marker Command for the SoftPLC

3.6 PAS_SELC_EX - Marker Command for the SoftPLC

CFC view

PAS_SELC_EX.tif

Fig. 3-8 PAS_SELC_EX block

3.6.1 Function
Apart from one exception, a PAS_SELC_EX block works according to the same principles as a PAS_SELC
block (see chapter 3.5). Using the PAS_SELC_EX block, an additional switchgear interlock can be set by spec-
ifying an originator (refer to Originator category). If the command is triggered by an originator which does not
correspond to the one on the REL_ICAT input or to one of the specified exceptions, the command receives a
negative acknowledgement with the additional cause Violation of Switching Authority (99).

The originators SoftPLC (4) and Originator irrelevant (0) are never considered for the additional switchgear
interlock.

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3.6 PAS_SELC_EX - Marker Command for the SoftPLC

3.6.2 Connections

Inputs

Table 3-9 Inputs of the PAS_SELC_EX block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

LOCK BOOL General interlock, 1-of-n-check (TRUE-active) FALSE

NOTE
Can be interconnected with the ACTIVE output of other
command blocks!

REL_ON BOOL Switchgear interlock for ON command TRUE

FALSE = locked
TRUE = unlocked

REL_OFF BOOL Switchgear interlock for OFF command TRUE

FALSE = locked
TRUE = unlocked

REL_ICAT BYTE Initiator Category 0

Originator exempted from the additional switchgear interlock

NOTE
The originators SoftPLC (4) and Originator irrelevant (0)
are never considered for the additional switchgear interlock.

COMM PASDATABLOCK Input for derived commands 0

NOTE
Can be connected to the OUTPUT output of a
PAS_CRCOM block!

IN PASCOMMANDBLOCK Input for commands 0

all command types (pointer to PAS information)

NOTE
Must be connected!

TERM_POS BOOL TERM_POS = TRUE TRUE

The command is terminated successfully.
By default, this value is set to TRUE, i. e. a positive command
acknowledgement is output with CO+ COE+ after the receipt.

TERM_NEG BOOL TERM_POS = TRUE FALSE

The command is terminated with a negative acknowledge-
ment.

R_VALUE REAL REAL value output 0

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Outputs

Table 3-10 Outputs of the PAS_SELC_EX block

Name Data Type Function/Note

Protocol Type

ACTIVE BOOL After the termination of a command:

Changeover from TRUE to FALSE.

MARKER DWORD Change marker

The marker is increased by 1 when a command is received.

CMD_CHG BOOL Toggles with every successful command initiation.

BO_VALUE BOOL Value output least significant bit

DW_VALUE DWORD Value output Double word

CMD_TRIG BOOL Upon the start of a command:

Changeover from ACTIVE to TRUE.
Only valid for the length of a poll.

TRM_TRIG BOOL The running command is canceled prematurely.

Changeover from ACTIVE to FALSE.
TRM_TRIG = TRUE
Only valid for the length of a poll.

ICAT BYTE Initiator Category

Command originator

DIAG WORD This output visualizes Diagnostic Information (refer to Appendix A.2).

3.6.3 Miscellaneous

Error processing

Non-connected inputs are checked. If inputs which must be connected in order to ensure the proper functioning
of the block are not linked or linked incorrectly, no information is processed in the block. The error information
is output on the DIAG diagnostic output (refer to Appendix A.2).

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4 Indications

Overview

This chapter describes the SICAM PAS automation blocks of the indication processing group. They are divided
into two groups: Indication and comparison blocks. They are used to create and edit indications. The examples
in this chapter illustrate how to use these blocks.

Contents

4.1 Concept of Indication Processing in Automation 84

4.2 PAS_CRI - Creating Indications 85

4.3 PAS_FI - Creating Fleeting Indications 89

4.4 PAS_TSP - Converting Double-Point Into Single-Point Indications 91

4.5 PAS_ANDI and PAS_ORI - Logical Linking of Indications 94

4.6 PAS_INVER - Inverting Indications 98

4.7 PAS_DELAYI - Filtering an Indication 101

4.8 PAS_GROUPI - Creating Group Indications 104

4.9 PAS_CMPT and PAS_CMPTC - Transformer Tap Comparison 106

4.10 PAS_CMPB and PAS_CMPBC - Bit Pattern Comparison 112

4.11 PAS_INDIC - Interlocks 118

4.12 PAS_GROUPINDIC - Accessing an Indication Group 123

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4.1 Concept of Indication Processing in Automation

4.1 Concept of Indication Processing in Automation

Tasks

Indication processing in automation includes the following functions:

• Derivation of indications
• Splitting of indications
• Conversion of indications
• Combination of indications (formation of group indications)
− OR function
− AND function
• Inversion of indications
• Delay of indications
• Comparison of indications
− Transformer tap indications
− Bit pattern indications
• Derivation of interlocks

NOTE

An overview of the possible input values and their significance is provided in Appendix A.1.

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4.2 PAS_CRI - Creating Indications

4.2 PAS_CRI - Creating Indications

CFC View

PAS_CRI.tif

Fig. 4-1 PAS_CRI block

4.2.1 Function
Single-point, double-point and fleeting indications are created by means of the PAS_CRI block. The indication
created by the block is always transmitted when the value on the SEND or CHANGE input changes.

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4.2 PAS_CRI - Creating Indications

4.2.2 Connections

Inputs

Table 4-1 Inputs of the PAS_CRI indication block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is passed on to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

SEND BOOL Creates an indication upon the change from FALSE to TRUE (point- FALSE
er to PAS information)

NOTE
Must be connected if CHANGE is not connected and must not be
connected if CHANGE is connected!

CHANGE BOOL Change marker FALSE

Creates an indication with each change (pointer to
PAS information).

NOTE
Must be connected if SEND is not connected and must not be con-
nected if SEND is connected!

CAUSE BYTE Cause of the indication 0

Usually set to the value 1 (spontaneous change).

STATUS BYTE Status byte 0

INDICTYP BYTE This parameter specifies the type of indication to be created. 0

2 = real-time double-point indication
3 = real-time single-point indication
4 = real-time fleeting indication

NOTE
Must be configured!

SIGNAL_1 BOOL Logical value of the indication FALSE

Single-point indication / Double-point indication
TRUE = ON0 = ON
FALSE = OFF1 = OFF

SIGNAL_2 BOOL Logical value of the indication FALSE

Single-point indication / Double-point indication
FALSE = ON/OFF1 = ON
FALSE = OFF

EXSTATUS BYTE Extended Status 0

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4.2 PAS_CRI - Creating Indications

Table 4-1 Inputs of the PAS_CRI indication block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

TIMEHIGH WORD Time stamp If the inputs are left free, the in- 0
(bits 32 to 47) ternal system time is entered.

TIMELOW DWORD Time stamp 0

(bits 0 to 31)

Outputs

Table 4-2 Outputs of the PAS_CRI indication block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

INDIC PASDATABLOCK The indication structure block is located on this output. (pointer to
SP, DP, EVENT PAS information)

NOTE
Must be connected, i. e. the output is connected with the right-hand CFC margin
bar or set as output tag in the ST program!

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

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4.2 PAS_CRI - Creating Indications

4.2.3 Miscellaneous

Error processing

If you specify an incorrect indication type, the default value is set for the type. The INVALID bit is set to TRUE
in the status byte.

4.2.4 Example
The example below illustrates how an indication is created from the linkage of four Boolean values.

Bsp_ANDI_CRI.tif

Fig. 4-1 Example of a PAS_ANDI and PAS_CRI block

Description

ANDI block

The inputs of the PAS_ANDI block are assigned PASDATABLOCK indications. The output signal of the
PAS_ANDI block is assigned to the SIGNAL_1 input of the PAS_CRI block.

PAS_CRI block

An indication is created if the signal on the SIGNAL_1 input changes. After its creation, this indication is con-
nected to the right-hand margin bar (or to the input of the downstream block).

Further examples

Refer to Example of a PAS_CMPT and PAS_CRI block, page 111,

refer to Example of a PAS_CMPT and PAS_CRI block, page 117.

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4.3 PAS_FI - Creating Fleeting Indications

4.3 PAS_FI - Creating Fleeting Indications

CFC view

PAS_FI.tif

Fig. 4-2 PAS_FI block

4.3.1 Function
For each incoming indication of an indication group, this block creates a fleeting indication with a time stamp,
a status and the spontaneous cause at the input.

However, indications of the indication group that arrive at the input with the bay block status or with the startup
general interrogation cause are not evaluated.

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4.3 PAS_FI - Creating Fleeting Indications

4.3.2 Connections

Inputs

Table 4-1 Inputs of the PAS_FI indication block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

IN PASGROUP Group of indications arriving at the input 0

Possible data types:
Single-point indications
Double-point indications
Fleeting indications

Outputs

Table 4-2 Outputs of the PAS_FI indication block

Name Data Type Function/Note

Protocol Type

SIZE WORD Number of indications of the indication group arriving at the input

CHANGE BOOL Toggling with each newly created fleeting indication

MARKER DWORD Change counter incremented with each new fleeting indication on the output

INDIC PASDATABLOCK Output for fleeting indications

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

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4.4 PAS_TSP - Converting Double-Point Into Single-Point Indications

4.4 PAS_TSP - Converting Double-Point Into Single-Point Indications

CFC view

PAS_TSP.tif

Fig. 4-3 PAS_TSP block

4.4.1 Function
The PAS_TSP block converts double-point indications into single-point indications. The time of the initiating in-
dication is applied for the result indication.

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4.4 PAS_TSP - Converting Double-Point Into Single-Point Indications

4.4.2 Connections

Inputs

Table 4-3 Inputs of the PAS_TSP block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is passed on to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

IN PASDATABLOCK The address of an indication structure is applied to this input. 0

DP
NOTE
Must be connected, i. e. the input is linked to an item of
PAS information!

Outputs

Table 4-4 Outputs of the PAS_TSP block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

INDIC PASDATABLOCK The converted indication structure block is assigned to this output.
SP
NOTE
Must be connected, i. e. the input is linked to an item of PAS information!

EXSTATUS BYTE Extended Status

TIMEHIGH WORD Time stamp (bits 0 to 15) of the result calculation

TIMELOW DWORD Time stamp (bits 16 to 47) of the result calculation

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

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4.4 PAS_TSP - Converting Double-Point Into Single-Point Indications

4.4.3 Miscellaneous

Error processing

A fatal error is output if the inputs are connected to the incorrect indication type (e. g. fleeting indication).

4.4.4 Example
In the chart below, a double-point group indication is converted into a single-point indication.

Bsp_ANDI_TSP.tif

Fig. 4-4 Example of a PAS_ANDI and PAS_TSP block

Description

PAS_ANDI block

Double-point indications appear on the IN1, IN2, IN3 and IN 4 inputs of the PAS_ANDI block. The indications
are linked logically in the block. The result, a double-point group indication, is output as an indication structure
block on the INDIC output.

PAS_TSP block

The indication structure block on the output of the PAS_ANDI block is connected to the IN input of the
PAS_TSP block. The incoming double-point indication is converted onto a single-point indication and output as
PAS information via the INDIC output.

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4.5 PAS_ANDI and PAS_ORI - Logical Linking of Indications

4.5 PAS_ANDI and PAS_ORI - Logical Linking of Indications

CFC view

PAS_ANDI.tif

Fig. 4-5 PAS_ANDI block

PAS_ORI.tif

Fig. 4-6 PAS_ORI block

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4.5 PAS_ANDI and PAS_ORI - Logical Linking of Indications

4.5.1 Function

PAS_ANDI
The PAS_ANDI block realizes AND operations for group indications of single-point and/or double-point indica-
tions. The block can perform an AND operation of up to 4 indications at the same time. If several indications
exist, it can be cascaded.

AND operation

The group indication is set as soon as all indications are present (RAISED). When the first of the linked indica-
tions disappears, the group indication is cleared, i. e. set to CLEARED. The time of the indication which was
present last or the time of the indication which disappeared first is applied for the result indication.

The startup indication is transmitted as soon as the startup indications of all inputs have been received.

The status of the raising group indication corresponds to the OR link of the state of all indications on the inputs.
Exception: If at least one of the transmitted CLEARED indications has the topical status, the result indication
is also assigned the topical status.

PAS_ORI
The PAS_ORI block realizes OR operations for group indications of single-point and/or double-point indica-
tions. The block can perform an OR operation of up to 4 indications at the same time. If several indications
exist, it can be cascaded.

The blocks link the logical values of indications. For example, they form one logical value (e. g. 01 becomes
FALSE) from the value of a double-point indication and perform a logical link for this value. A pointer to the
result indication (PAS information) is output.

The result indication always has the "double-point indication" type. The cause of the transmission (CAUSE) is
always set to SPONTANEOUS for a result indication.

OR operations

The group indication is set as soon as the first linked indication is present (RAISED). When the last of the linked
indications disappears, the group indication is cleared, i. e. set to CLEARED. The time of the indication which
raises first or is cleared last is applied for the result indication.

The startup indication is transmitted as soon as the startup indications of all inputs have been received.

The status of the cleared group indication corresponds to the OR link of the states of all indications on the in-
puts.
Exception: If at least one of the transmitted RAISED indications has the topical status, the result indication is
also assigned the topical status.

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4.5 PAS_ANDI and PAS_ORI - Logical Linking of Indications

4.5.2 Connections

Inputs

Table 4-5 Inputs of the PAS_ANDI and PAS_ORI link blocks

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

IN1 PASDATABLOCK The address of an indication structure which is to be linked is 0

SP, DP applied to this input.

NOTE
Must be connected, i. e. the input is linked to an item of
PAS information!

up to

IN4 PASDATABLOCK The address of an indication structure which is to be linked is 0

SP, DP applied to this input.

NOTE
Must be connected, i. e. the input is linked to an item of
PAS information!

Outputs

Table 4-6 Outputs of the PAS_ANDI and PAS_ORI link blocks

Name Data Type Function/Note

Protocol Type

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

EN_EVENT BOOL TRUE in the case of a value change (BVALUE), otherwise FALSE

ALARM BOOL PAS_ANDI:

Toggling with each CLEARED indication on the input
PAS_ORI:
Toggling with new RAISED indication

BVALUE BOOL Current link value

INDIC PASDATABLOCK The address of the result indication is present on this output.
DP
NOTE
Must be connected, i. e. the input is linked to an item of PAS information!

EXSTATUS BYTE Extended Status

TIMEHIGH WORD Time stamp (bits 0 to 15) of the result indication

TIMELOW DWORD Time stamp (bits 16 to 47) of the result indication

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4.5 PAS_ANDI and PAS_ORI - Logical Linking of Indications

4.5.3 Miscellaneous

Error processing

All incoming indications are checked for plausibility.

4.5.4 Example
Refer to Example of a PAS_ANDI and PAS_TSP block, page 93,
refer to Example of a PAS_ANDI, PAS_ORI and PAS_INVER block, page 100.

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4.6 PAS_INVER - Inverting Indications

4.6 PAS_INVER - Inverting Indications

CFC view

PAS_INVER.tif

Fig. 4-7 PAS_INVER block

4.6.1 Function
With the PAS_INVER block, you can invert single-point and double-point indications, i. e. RAISED indications
are converted into CLEARED indications and vice-versa. Incoming indications are checked for validity before
they are processed.

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4.6 PAS_INVER - Inverting Indications

4.6.2 Connections

Inputs

Table 4-7 Inputs of the PAS_INVER block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is passed on to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

IN PASDATABLOCK The address of an indication structure block is applied to this input. 0

SP, DP
NOTE
Must be connected, i. e. the input is linked to an item of
PAS information!

Outputs

Table 4-8 Outputs of the PAS_INVER block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

INDIC PASDATABLOCK The address of the result indication is present on this output.
DP
NOTE
Must be connected, i. e. the input is linked to an item of PAS information!

EXSTATUS BYTE Extended Status

TIMEHIGH WORD Time stamp (bits 0 to 15) of the result indication

TIMELOW DWORD Time stamp (bits 16 to 47) of the result indication

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

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4.6 PAS_INVER - Inverting Indications

4.6.3 Miscellaneous

Error processing

All incoming indications are checked for validity.

4.6.4 Example
The example below shows a logical link of five error indications. The logical result of the outgoing indication
may only be TRUE if the following conditions are met:
• At least one of the first four error indications is set to TRUE.
• The fifth error indication must be set to FALSE.

Bsp_ANDI_ORI_INVER.tif

Fig. 4-8 Example of a PAS_ANDI, PAS_ORI and PAS_INVER block

Description

PAS_ORI block

The PAS_ORI block is assigned with the four error indications. If at least one of the error indications is TRUE,
the indication on the INDIC output is assigned the logical value TRUE.

PAS_INVER block

The PAS_INVER block is activated with EN = TRUE. The IN input of the PAS_INVER block is connected to the
fifth error indication. The inverted indication is present on the INDIC output, i. e. the logical value of the indica-
tion is inverted.

PAS_ANDI block

The PAS_ANDI block checks whether both above-mentioned conditions are met. If the conditions are met, the
outgoing indication on the INDIC output receives the logical value TRUE; otherwise it is FALSE.

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4.7 PAS_DELAYI - Filtering an Indication

4.7 PAS_DELAYI - Filtering an Indication

CFC view

PAS_DELAYI.tif

Fig. 4-9 PAS_DELAYI block

4.7.1 Function
This block filters indications and processes fleeting indications. Via the Boolean inputs RAISED_I, CLEAR_I
and UNDEF_I, you can specify for which indication criteria the filter time responds - except for fleeting indica-
tions which can only be filtered without a filter time.

If the filter time is set to zero, the indication is suppressed when the defined filter criterion appears.

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4.7 PAS_DELAYI - Filtering an Indication

4.7.2 Connections

Inputs

Table 4-9 Inputs of the PAS_DELAYI block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is passed on TRUE
to the ENO output.
FALSE = block disabled
TRUE = block enabled

IN PASDATABLOCK The address of an indication structure block is applied to this input. 0

SP, DP
NOTE
The data type of the incoming indication
(SP or DP protocol type) must correspond to the data type of the
result indication on the INDIC output.
Must be interconnected, i. e. the input is linked to an item of
PAS information!

EVENT Is only valid if the filter time = 0

TIME_IN TIME Filter time 0

Time during which the indication must be present before being
transmitted.
0 = filtering without time
>0 = filter time

NOTE
Responds to specified filter criteria.

RAISED_I BOOL Filter criterion for RAISED indication FALSE

CLEAR_I BOOL Filter criterion for CLEARED indication FALSE

UNDEF_I BOOL Filter criterion for intermediate position indication FALSE

NOTE
Only valid for double-point indications.

UDF_MODE BYTE This input specifies how the intermediate position is output: 0
0 = output intermediate position without change
1 = output intermediate position as 00
2 = output intermediate position as 11

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4.7 PAS_DELAYI - Filtering an Indication

Outputs

Table 4-10 Outputs of the PAS_DELAYI block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

INDIC PASDATABLOCK The address of the result indication is present on this output.
SP, DP
NOTE
The data type of the result indication (SP or DP protocol type) must correspond
to the data type of the incoming indication on the IN input.
Must be interconnected, i. e. the input is linked to an item of PAS information!

EVENT Is only valid if the filter time = 0

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

4.7.3 Miscellaneous

Error processing

Incorrectly connected inputs trigger a fatal error.

4.7.4 Example
The example below displays the connection and parameterization of the PAS_DELAYI block for filtering a
RAISED indication. This indication is forwarded after a specified period of time.

Bsp_PAS_DELAYI.tif

Fig. 4-10 Example of the PAS_DELAYI block

Description

The incoming indication is present on the IN input. A pending period of 10 ms is defined on the TIME_IN input.
To filter RAISED indications, the RAISED_I input must be assigned TRUE.

As the CLEAR_I (CLEARED indication) and UNDEF_I (intermediate position indication) inputs are defined
FALSE, only RAISED indications are filtered. They are output on the INDIC output after a period of 10 ms.

CLEARED and intermediate position indications are not considered, i. e. they are forwarded immediately
(INDIC output) without pending for a certain period of time.

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4.8 PAS_GROUPI - Creating Group Indications

4.8 PAS_GROUPI - Creating Group Indications

CFC view

PAS_GROUPI.tif

Fig. 4-11 PAS_GROUPI block

4.8.1 Function
The PAS_GROUPI block is a group indication block. It enables the rapid parameterization of a group indication
with an OR operation.
The parameterization is performed via groups in SICAM PAS UI.
The individual values in an automation program do not need to be connected. Only a connection from the PAS-
GROUP data type to a PAS_GROUPI block is performed.

The block processes single-point and double-point indications. If one of the values is ON, the BVALUE output
value is TRUE; otherwise it is FALSE. If a change occurred with the ON value at the time of the block call, the
ALARM output toggles. This does not necessarily mean that the BVALUE output value has changed!

If a BVALUE value change exists or if a value has changed during startup, a new outgoing indication is gener-
ated (INDIC).

With each new outgoing indication, EN_EVENT is set to TRUE for this call of the automation program.

The status of the cleared group indication corresponds to the OR link of the states of all indications on the in-
puts.
Exception: If at least one of the transmitted RAISED indications has the topical status, the result indication is
also assigned the topical status.

NOTE

Indications with the not topical and manually update status are ignored by the PAS_GROUPI block and not
included in the group indication (refer to Chapter 2.2, Startup Behavior of the SICAM PAS SoftPLC).

The Bay Block Active status is transmitted only once. If a Bay Block Active indication is transmitted after-
wards, no group indication processing is performed until all indications of the group have reset the Bay Block
Active status.

As soon as an indication of the group is transmitted with a cause other than General Interrogation, the cause
of the group indication is set to spontaneous. The new group indication is assigned the time stamp of the caus-
ing indication.

During startup, the block creates a cleared double-point indication with the General Interrogation cause and
the not topical and manually updated status and the time stamp of the initialization of the group indication
(first call of the corresponding PAS_GROUPI block).

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4.8 PAS_GROUPI - Creating Group Indications

4.8.2 Connections

Inputs

Table 4-11 Inputs of the PAS_GROUPI block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

IN PASGROUP Indication input (group) 0

Outputs

Table 4-12 Outputs of the PAS_GROUPI block

Name Data Type Function/Note

Protocol Type

SIZE WORD Number of integrated indications

MARKER DWORD Change marker for the outgoing indication

EN_EVENT BOOL TRUE for value change (BVALUE)

ALARM BOOL Toggling with new RAISED indication with the spontaneous cause

BVALUE BOOL Current link value

INDIC PASDATABLOCK Output for result indication (pointer to PAS information)

DP
NOTE
Must be connected!

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

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4.9 PAS_CMPT and PAS_CMPTC - Transformer Tap Comparison

4.9 PAS_CMPT and PAS_CMPTC - Transformer Tap Comparison

CFC view

PAS_CMPT.tif

Fig. 4-12 PAS_CMPT block

PAS_CMPTC.tif

Fig. 4-13 PAS_CMPTC block

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4.9 PAS_CMPT and PAS_CMPTC - Transformer Tap Comparison

4.9.1 Function
The following blocks are used to compare transformer tap indications:
• Comparison of two transformer tap indications
• Comparison between a transformer tap indication and a constant

PAS_CMPT
This block compares two transformer tap indications.

Depending on the comparison status, the Boolean outputs are set to TRUE or FALSE (TRUE-active).

The corresponding indication is derived from the result of a comparison of the transformer tap indications by
means of an interconnection with the CRI block. The time stamp is applied from the transformer tap indication
which has been received last.

PAS_CMPTC
This block compares a transformer tap indication with a constant.

Depending on the comparison status, the Boolean outputs are set to TRUE or FALSE (TRUE-active).

The corresponding indication is derived from the result of a comparison of the transformer tap indications by
means of an interconnection with the CRI block. The time stamp is applied from the transformer tap indication
which has been received last.

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4.9 PAS_CMPT and PAS_CMPTC - Transformer Tap Comparison

4.9.2 Connections

Inputs of the PAS_CMPT block

Table 4-13 Inputs of the PAS_CMPT block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is forwarded to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

IN1 PASDATABLOCK The address of a first transformer tap indication is applied to this 0
ST input.

NOTE
Must be interconnected, i. e. the input is linked to an item of
PAS information!

IN2 PASDATABLOCK The address of a second first transformer tap indication is applied 0
ST to this input.

NOTE
Must be interconnected, i. e. the input is linked to an item of
PAS information!

Outputs of the PAS_CMPT block

Table 4-14 Outputs of the PAS_CMPT block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

GREATER BOOL IN1 is greater than IN2

GR_EQ BOOL IN1 is greater than or equal to IN2

EQUAL BOOL IN1 is equal to IN2

LE_EQ BOOL IN1 is less than or equal to IN2

LESS BOOL IN1 is less than IN2

STATUS BYTE Status

EXSTATUS BYTE Extended Status

TIMEHIGH WORD Time stamp (bits 0 to 15)

TIMELOW DWORD Time stamp (bits 16 to 47)

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4.9 PAS_CMPT and PAS_CMPTC - Transformer Tap Comparison

Table 4-14 Outputs of the PAS_CMPT block (cont.)

Name Data Type Function/Note

Protocol Type

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

Inputs of the PAS_CMPTC block

Table 4-15 Inputs of the PAS_CMPT block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is forwarded to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

INDIC PASDATABLOCK The address of a transformer tap indication is applied to this input. 0
ST
NOTE
Must be interconnected, i. e. the input is linked to an item of
PAS information!

CONST BYTE This parameter specifies the constant with which the transformer 0
tap indication is compared.

NOTE
Must be configured!

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4.9 PAS_CMPT and PAS_CMPTC - Transformer Tap Comparison

Outputs of the PAS_CMPTC block

Table 4-16 Outputs of the PAS_CMPTC block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

GREATER BOOL INDIC is greater than the constant

GR_EQ BOOL INDIC is greater than or equal to the constant

EQUAL BOOL INDIC is equal to the constant

LE_EQ BOOL INDIC is less than or equal to the constant

LESS BOOL INDIC is less than the constant

STATUS BYTE Status

EXSTATUS BYTE Extended Status

TIMEHIGH WORD Time stamp (bits 0 to 15)

TIMELOW DWORD Time stamp (bits 16 to 47)

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

4.9.3 Miscellaneous

Error processing
Indications with an incorrect type or non-connected inputs cause a fatal error. Indications with the correct type
cause an error if they include erroneous information. The Boolean outputs are set to FALSE in both cases.

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4.9 PAS_CMPT and PAS_CMPTC - Transformer Tap Comparison

4.9.4 Example
The example below illustrates the monitoring of two transformers. An indication is displayed if the transformer
taps of the two transformers are identical.

Bsp_PAS_CMPT_CRI.tif

Fig. 4-14 Example of a PAS_CMPT and PAS_CRI block

Description
PAS_CMPT block

A transformer tap indication from Transformer 1 is present on the IN1 input. A transformer tap indication from
Transformer 2 is present on the IN2 input. If the two transformer tap indications are identical, the output is
EQUAL = TRUE.

PAS_CRI block

The EQUAL output of the PAS_CMPT block is connected to the SIGNAL_1 input of the PAS_CRI block. Via
the TIMEHIGH and TIMELOW inputs, it receives the time stamp of the transformer tap indication which was
received last in the PAS_CMPT block.

The type of the derived indication (single-point indication = 3) is defined on the INDICTYP input. The indication
is issued on the INDIC output.

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4.10 PAS_CMPB and PAS_CMPBC - Bit Pattern Comparison

4.10 PAS_CMPB and PAS_CMPBC - Bit Pattern Comparison

CFC view

PAS_CMPB.tif

Fig. 4-15 PAS_CMPB block

PAS_CMPB.tif

Fig. 4-16 PAS_CMPBC block

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4.10 PAS_CMPB and PAS_CMPBC - Bit Pattern Comparison

4.10.1 Function
The following blocks are used to compare bit pattern indications:
• Comparison of two bit pattern indications:
The absolute values of bit pattern indications are compared. For example, bit pattern 1001 (= 9) is greater
than 0111 (= 7).
• Comparison between a bit pattern indication and a constant

PAS_CMPB
This block compares two bit pattern indications.

Depending on the comparison status, the Boolean outputs are set to TRUE or FALSE (TRUE-active).

To derive an indication from the result of the evaluation, connect a PAS_CRI block downstream. The time stamp
is applied from the bit pattern indication which has been received last.

PAS_CMPBC
This block compares a bit pattern indication with a constant.

Depending on the comparison status, the Boolean outputs are set to TRUE or FALSE (TRUE-active).

To derive an indication from the result of the evaluation, connect a PAS_CRI block downstream. The time stamp
is applied from the bit pattern indication which has been received last.

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4.10 PAS_CMPB and PAS_CMPBC - Bit Pattern Comparison

4.10.2 Connections

Inputs of the PAS_CMPB block

Table 4-17 Inputs of the PAS_CMPB block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is forwarded to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

IN1 PASDATABLOCK The address of a first transformer tap indication is applied to this 0
BO input. First bit pattern indication created.

NOTE
Must be interconnected, i. e. the input is linked to an item of
PAS information!

IN2 PASDATABLOCK The address of a second transformer tap indication is applied to this 0
BO input. Second bit pattern indication created.

NOTE
Must be interconnected, i. e. the input is linked to an item of
PAS information!

Outputs of the PAS_CMPB block

Table 4-18 Outputs of the PAS_CMPB block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

GREATER BOOL IN1 is greater than IN2

GR_EQ BOOL IN1 is greater than or equal to IN2

EQUAL BOOL IN1 is equal to IN2

LE_EQ BOOL IN1 is less than or equal to IN2

LESS BOOL IN1 is less than IN2

STATUS BYTE Status

EXSTATUS BYTE Extended Status

TIMEHIGH WORD Time stamp (bits 0 to 15)

TIMELOW DWORD Time stamp (bits 16 to 47)

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4.10 PAS_CMPB and PAS_CMPBC - Bit Pattern Comparison

Table 4-18 Outputs of the PAS_CMPB block (cont.)

Name Data Type Function/Note

Protocol Type

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

Inputs of the PAS_CMPBC block

Table 4-19 Inputs of the PAS_CMPBC block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is forwarded to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

INDIC PASDATABLOCK The address of a bit pattern indication is applied to this input. 0
BO
NOTE
Must be interconnected, i. e. the input is linked to an item of
PAS information!

CONST DWORD This parameter specifies the constant with which the bit pattern in- 0
dication is compared.

NOTE
Must be configured!

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4.10 PAS_CMPB and PAS_CMPBC - Bit Pattern Comparison

Outputs of the PAS_CMPBC block

Table 4-20 Outputs of the PAS_CMPBC block

Name Data Type Function/Note

protocol
type

ENO BOOL Looped through EN input

GREATER BOOL INDIC is greater than the constant

GR_EQ BOOL INDIC is greater than or equal to the constant

EQUAL BOOL INDIC is equal to the constant

LE_EQ BOOL INDIC is less than or equal to the constant

LESS BOOL INDIC is less than the constant

STATUS BYTE Status

EXSTATUS BYTE Extended Status

TIMEHIGH WORD Time stamp (bits 0 to 15)

TIMELOW DWORD Time stamp (bits 16 to 47)

DIAG WORD This output visualizes diagnostic information

(refer to Appendix A.2).

4.10.3 Miscellaneous

Error processing

Indications with an incorrect type or non-connected inputs cause a fatal error. Indications with the correct type
cause an error if they include erroneous information. The Boolean outputs are set to FALSE in both cases.

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4.10 PAS_CMPB and PAS_CMPBC - Bit Pattern Comparison

4.10.4 Example
The example below illustrates the comparison between the setpoint value and the actual value of bit pattern
indications. An indication is derived from the result on the EQUAL output by means of a connection with a
PAS_CRI block.

Bsp_PAS_CMPB_CRI.tif

Fig. 4-17 Example of a PAS_CMPT and PAS_CRI block

Description

PAS_CMPB block

The setpoint value is located on the IN1 input, whereas the actual value is present on the IN2 input. If the bit
pattern values are identical, the output is EQUAL = TRUE.

PAS_CRI block

The EQUAL output of the PAS_CMPB block is connected to the SIGNAL_1 input of the PAS_CRI block. The
CHANGE input is defined with TRUE, i. e. an indication is created if the signal on the SIGNAL_1 input changes.
Via the TIMEHIGH and TIMELOW inputs, it receives the time stamp of the bit pattern value which arrived last
in the PAS_CMPB block.

The type of the derived indication (single-point indication = 3) is defined on the INDICTYP input. The indication
is issued on the INDIC output.

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4.11 PAS_INDIC - Interlocks

4.11 PAS_INDIC - Interlocks

CFC view

PAS_INDIC.tif

Fig. 4-18 PAS_INDIC block

4.11.1 Function
The status and state of single-point and double-point indications are displayed via the PAS_INDIC block. Inter-
lock links are made with the Boolean outputs by means of Boolean logic blocks.

The IOFF, ION, NOT_DBI, DBI0 and DBI1 outputs are set to TRUE or FALSE depending on the state of the
indication on the input of the PAS_INDIC block (e. g. indication via the switching state of a switching device).

If the incoming indication is a single-point indication, the DBI0 and DBI1 outputs are not assigned, i. e. they are
set to FALSE.

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4.11 PAS_INDIC - Interlocks

4.11.2 Connections

Inputs

Table 4-21 Inputs of the PAS_INDIC block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is forwarded to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

INDIC PASDATABLOCK The address of an indication structure block is applied to this input. 0
SP, DP
NOTE
Must be interconnected, i. e. the input is linked to an item of
PAS information!

Outputs

Table 4-22 Outputs of the PAS_INDIC block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

IOFF BOOL Switch OFF (TRUE-active)

TRUE = Single-point/double-point indication CLEARED

ION BOOL Switch ON (TRUE-active)

TRUE = Single-point/double-point indication RAISED

NOT_DBI BOOL TRUE = No intermediate position

DBI0 BOOL TRUE = Intermediate position for double-point indication (TRUE-active)

DBI1 BOOL TRUE = Intermediate position for double-point indication (TRUE-active)

PROINBLK BOOL Process input block (TRUE-active)

EXTERR BOOL External error (TRUE-active)

NOTACTUA BOOL Not topical (TRUE-active)

SUBSTVAL BOOL Manually updated (TRUE-active)

CHATDIS BOOL Chatter blocking (TRUE-active)

BAYBLOCK BOOL Transmission blocking (TRUE-active)

INVALID BOOL Invalid (TRUE-active)

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4.11 PAS_INDIC - Interlocks

Table 4-22 Outputs of the PAS_INDIC block (cont.)

Name Data Type Function/Note

Protocol Type

OVERFLOW BOOL Overflow (TRUE-active)

VALTISTB BOOL Clock status bit valid (TRUE-active)

RESTOREB BOOL Restore bit (toggle bit)

INTERRB BOOL Internal error (TRUE-active)

TOTCOUNT BOOL Total count (TRUE-active)

4.11.3 Miscellaneous

Error processing

Non-connected inputs are checked. If inputs which must be connected to ensure the functionality of the block
are not linked, no information is processed in the block.

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4.11 PAS_INDIC - Interlocks

4.11.4 Example

Switchgear interlocking

In the example below, Boolean signals are derived from a pulse command for the logical control of an interlock.

Beispiel5.tif

Fig. 4-19 Example of a switchgear interlock

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4.11 PAS_INDIC - Interlocks

Description

PAS_INDIC

An incoming indication is present on the INDIC input of each of the two PAS_INDIC blocks. The EN input is
assigned TRUE for each of them. The ION output of the first and the second PAS_INDIC block is connected to
the IN0 or IN1 input of the Boolean block.

AND block

The incoming indications of this blocks are subject to an AND operation, i. e.

✧ if both indications = TRUE, the command to the PAS_COMMCP block is locked.

✧ if one or no indication = TRUE, switching is still possible.

PAS_COMMCP

The Boolean signal is received on the _LOCK input and output via the OUT output.

Indication type Process Output Otherwise

feedback

Double-point ON01 ON = TRUE OFF = FALSE

indication DBI0 = FALSE
DBI1 = FALSE

OFF10 OFF = TRUE ON = FALSE

DBI0 = FALSE
DBI1 = FALSE

Intermed.00 DBI0 = TRUE ON = FALSE

OFF = FALSE
DBI1 = FALSE

Intermed.11 DBI1 = TRUE ON = FALSE

OFF = FALSE
DBI0 = FALSE

Single-point ON1 ON = TRUE OFF = FALSE

indication
OFF0 OFF = TRUE ON = FALSE

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4.12 PAS_GROUPINDIC - Accessing an Indication Group

4.12 PAS_GROUPINDIC - Accessing an Indication Group

CFC view

PAS_GROUPINIDIC.tif

Fig. 4-20 PAS_GROUPINDIC block

4.12.1 Function
The SICAM PAS_GROUPINDIC firmware block is used to access individual indications of an indication group.
Additionally, it detects which indication of the input group has changed. With this block, special group indication
blocks can be created in one of the languages supported by IEC 61131-3, i.e. CFC, ST or STL.

Method of operation

The PAS_GROUPINDIC block works as follows:

A specified indication group is assigned to the IN input of the block. The SIZE output indicates how many indi-
cations the group consists of.

As soon as one indication in the group changes on the input, the block indicates this by toggling the CHANGE
output and by the incrementation of the MARKER output. Additionally, the index of the changed indication is
shown on the CHANGE_IDX output.

The changed indication is reflected on the I_... outputs through another call of the block with the index on the
SELECT input.

Access to the individual indications functions according to the same principles as the indexing of an array in
other programming languages (the arrays or indices start with 1).

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4.12 PAS_GROUPINDIC - Accessing an Indication Group

NOTE

The SICAM PAS SoftPLC initiates a startup GI (general interrogation) of all typical indications (apart from fleet-
ing indications) in order to initialize all SICAM PAS firmware blocks which process these indications. This ini-
tialization is not deactivated by the PAS_GROUPINDIC block. All indications of the input group, apart from
fleeting indications, are assigned the General Interrogation cause and the not topical and manually updat-
ed status and transmitted to the SoftPLC logic.

4.12.2 Connections

Inputs

Table 4-23 Inputs of the PAS_GROUPINDIC block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

IN PASGROUP Indication input (group) 0

SELECT UINT Index of the indication to be shown on the output (I_...) 0

Outputs

Table 4-24 Outputs of the PAS_GROUPINDIC block

Name Data Type Function/Note

Protocol Type

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

SIZE UINT Number of indications of the indication group arriving at the input

MARKER DWORD Change counter for the input group

CHANGE BOOL Change marker for the input group

CHANGE_IDX UINT Index of the new indication in the input group

I_MARKER DWORD Change counter of the indexed indication

I_CAUSE BYTE Cause of the indexed indication

(refer to PAS_SASS - Splitting PAS Information, page 168)

I_TESTMODE BOOL Test mode bit of the indexed indication

I_INITCAT BYTE Initiator category of the indexed indication

(refer to PAS_SASS - Splitting PAS Information, page 168)

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4.12 PAS_GROUPINDIC - Accessing an Indication Group

Table 4-24 Outputs of the PAS_GROUPINDIC block (cont.)

Name Data Type Function/Note

Protocol Type

I_STATUS BYTE Status byte of the indexed indication

(refer to PAS_SASS - Splitting PAS Information, page 168)

I_ADDCAUSE BYTE Additional category of the indexed indication

(refer to PAS_SASS - Splitting PAS Information, page 168)

I_VALTYPE BYTE Value type of the indexed indication

(refer to PAS_SASS - Splitting PAS Information, page 168)

I_TIMETYPE BYTE Type of time of the indexed indication

(refer to PAS_SASS - Splitting PAS Information, page 168)

I_IDTYPE BYTE Type of the ID number of the indexed indication

(refer to PAS_SASS - Splitting PAS Information, page 168)

I_SUPPTYPE BYTE Type of the additional information of the indexed indication

(refer to PAS_SASS - Splitting PAS Information, page 168)

I_DW_VALUE DWORD The value of the indexed indication is output as DWORD

(refer to PAS_SASS - Splitting PAS Information, page 168)

I_R_VALUE REAL The value is output as REAL of the indexed indication

(refer to PAS_SASS - Splitting PAS Information, page 168)

I_EXSTATUS BYTE Extended status byte of the indexed indication

(refer to PAS_SASS - Splitting PAS Information, page 168)

I_TIMELOW DWORD Time stamp bits 16 to 47 of the indexed indication

(refer to PAS_SASS - Splitting PAS Information, page 168)

I_TIMEHIGH WORD Time stamp bits 0 to 15 of the indexed indication

(refer to PAS_SASS - Splitting PAS Information, page 168)

I_IDNO WORD ID number of the indexed indication

(refer to PAS_SASS - Splitting PAS Information, page 168)

I_SUPPINFO WORD Additional information of the indexed indication

(refer to PAS_SASS - Splitting PAS Information, page 168)

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4.12 PAS_GROUPINDIC - Accessing an Indication Group

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5 Measured Values and Metered Values

Overview

This chapter describes the SICAM PAS automation blocks for measured-value and metered-value processing.
They are divided into the following groups:
• Measured-value / metered-value blocks
• Arithmetical blocks
• Comparison blocks

The examples in this chapter illustrate the use of more complex blocks.

Contents

5.1 Measured-Value and Metered-Value Processing in the SoftPLC 128

5.2 Analog Value standardization 129

5.3 PAS_NLC - Non-Linear Characteristic 130

5.4 PAS_ACQ - Metered-Value Processing 135

5.5 PAS_LIMU and PAS_LIML - Limit Value Monitoring 139

5.6 PAS_AVG - Mean value 145

5.7 PAS_NRP - Slave Pointers 148

5.8 Arithmetical Blocks 152

5.9 PAS_CMP and PAS_CMPC - Comparison Blocks 159

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5.1 Measured-Value and Metered-Value Processing in the SoftPLC

5.1 Measured-Value and Metered-Value Processing in the SoftPLC

The operations for the processing of measured and metered values are divided in three block groups:
• Measured-value and metered-value blocks
• Arithmetical blocks
• Comparison blocks

The blocks are used to process measured and metered values independently of the acquisition sources (bay
and protection devices, internally formed measured and metered values).

NOTE

An overview of the possible input values and their significance is provided in Appendix A.1.

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5.2 Analog Value standardization

5.2 Analog Value standardization

5.2.1 Measuring Ranges

The measured values of the input blocks or devices are standardized as follows for transmission to the auto-
mation system:

Bay and protection devices

Bay and protection devices of the SIPROTEC series as well as bay and protection devices connected via
PROFIBUS FMS transmit the measured values standardized to a defined 100% reference value:

Transmission: − 240.0 to + 240.0

Reference variable: 100% reference value

These measured values are transmitted in the REAL 32 bit format.

IEC 60870-5-103 devices produce measured values in the following format:

Resolution: 12 bit + sign

Transmission: − 32768 to + 32760 (two's complement)

Reference variable: ± 120% or 240% of the measuring range

These measured values are transmitted in the 16-bit INTEGER format.

With the IEC61850 protocol, measured values are transmitted as INT32 or as FLOAT32 depending on the de-
vice type.

Additional formats depend on the protocol.

5.2.2 Analog value

100% absolute value

The 100% absolute value corresponds to the maximum value range of the output variable, e. g.:

Value range of the Input parameter

output level
100 V 100

20 mA 20

100% acquisition value

The definition of the 100% acquisition value depends on the maximum transmission value and on the reference
variable of the acquisition device.

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5.3 PAS_NLC - Non-Linear Characteristic

5.3 PAS_NLC - Non-Linear Characteristic

CFC view

PAS_NLC.tif

Fig. 5-1 PAS_NLC block

5.3.1 Function
The PAS_NLC block is used to linearize acquisition values which have been read in. Some measuring trans-
ducers have a non-linear measuring transducer characteristic, i. e. a certain measuring range is mapped at a
high resolution (zoom effect), whereas the remaining range has a significantly lower resolution.

The PAS_NLC block can linearize the acquisition values of measuring transducer characteristics with different
measuring resolutions (up to 5 salient points), e. g.:
• Stretched start range
• Stretched end range
• Zero offset
• Salient points

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Stretched start range

mvOUTPUT

120%
1320

100%
KP3

20%
KP2
mvINPUT

KP1 80% 100% 120%

(32760)

Fig. 5-2 Stretched start range

Stretched end range

mvOUTPUT

120%
1320

100%
KP3
80%
KP2

mvINPUT

KP1 20% 100% 120%

(32760)

Fig. 5-3 Stretched end range

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5.3 PAS_NLC - Non-Linear Characteristic

Zero offset

mvOUTPUT

120%
1320

100%
KP2
80%

mvINPUT

KP1 20% 100% 120%

(32760)

Fig. 5-4 Zero offset

5 salient points

mvOUTPUT

120%
1320

100% KP5

55% KP4

28%
KP3

6% KP2 mvINPUT

KP1 35% 60% 83% 100% 120%

(32760)

Fig. 5-5 A characteristic curve with up to 5 salient points can be defined

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5.3 PAS_NLC - Non-Linear Characteristic

5.3.2 Connections

Inputs

Table 5-1 Inputs of the PAS_NLC block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is forwarded to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

INPUT PASDATABLOCK Pointer to input measured-value telegram (real or integer) 0

ME_FL, ME_I
NOTE
Must be connected, i. e. the input is connected with the left-hand
CFC margin bar or indicated as a poll parameter within the frame-
work of the
ST programming!

VALTYPE BYTE Value Type 0

Protocol type output data type
28 = real (ME_FL protocol type)
30 = integer (ME_I protocol type)

BREAK_NR BYTE This parameter specifies the number of salient points. Up to 5 can 0
be defined.

SYMMETRY BYTE This parameter specifies the characteristic symmetry (zero offset). 0
0 = characteristic only in the 1st quadrant
1 = characteristic symmetrical to zero point
2 = characteristic symmetrical to y-axis

MAX_X REAL This parameter specifies the maximum input value. 0

NOTE
Must be configured!

MAX_XP REAL Percentage value corresponding to the maximum input value. 0

NOTE
Must be configured!

MAX_Y REAL This parameter specifies the maximum output value. 0

NOTE
Must be configured!

MAX_YP REAL Percentage value corresponding to the maximum output value. 0

NOTE
Must be configured!

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5.3 PAS_NLC - Non-Linear Characteristic

Table 5-1 Inputs of the PAS_NLC block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

X1 REAL X coordinate of KP1 in per cent 0

Y1 REAL Y coordinate of KP1 in per cent 0

X2 REAL X coordinate of KP2 in per cent 0

Y2 REAL Y coordinate of KP2 in per cent 0

X3 REAL X coordinate of KP3 in per cent 0

Y3 REAL Y coordinate of KP3 in per cent 0

X4 REAL X coordinate of KP4 in per cent 0

Y4 REAL Y coordinate of KP4 in per cent 0

X5 REAL X coordinate of KP5 in per cent 0

Y5 REAL Y coordinate of KP5 in per cent 0

Outputs

Table 5-2 Outputs of the PAS_NLC block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

OUTPUT PASDATABLOCK Pointer to output measured-value telegram (real or integer)

ME_FL, ME_I
NOTE
Must be interconnected, i.e. the output is always connected to the right-hand
margin bar of the CFC or set as output variable in the ST program!

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

5.3.3 Miscellaneous

Error processing

If inputs which must be connected in order to ensure the proper functioning of the block are not linked, no in-
formation is processed in the block.

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5.4 PAS_ACQ - Metered-Value Processing

5.4 PAS_ACQ - Metered-Value Processing

CFC view

PAS_ACQI.tif

Fig. 5-6 PAS_ACQ block

5.4.1 Function
Using the PAS_ACQ block, you can realize metered-value processing of counter additions within the SoftPLC.
Absolute metered values as input values are rejected by the PAS_ACQ block. The output is performed as a
counter addition, absolute metered value or as a mixed version of both.

The metered value to be processed can be preset, also during operation (32-bit setpoint). The presetting for
the startup is defined separately.

The metered values are added up and restored via telecontrol, HMI or at cyclic intervals. If cyclic restoration
was specified, restore commands can also be processed. However, they are not considered when counting the
restoration processes for the clear cycle (parameterization on the WITH_CLR input) of the internal counter con-
tent, i. e. the PAS_ACQ restores the current counter content without clearing.

NOTE

Exception: When defining the WITH_CLR input with 1 (number of the restoration processes = 1), the counter
content is cleared after each restoration.

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5.4 PAS_ACQ - Metered-Value Processing

5.4.2 Connections

Inputs

Table 5-3 Inputs of the PAS_ACQ block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is for- TRUE
warded to the ENO output.
FALSE = block disabled
TRUE = block enabled

INPUT PASDATABLOCK Pointer to metered-value telegram (PAS information) 0

IT
NOTE
Must be connected, i. e. the input is connected with the left-
hand CFC margin bar or indicated as a poll parameter within
the framework of ST programming!

COMM PASDATABLOCK Input for derive of restore commands 0

(CI)
NOTE
Can be interconnected to the OUTPUT output of a
PAS_CRCOM block.

SEND PASCOMMANDBLOCK Input for restore command (pointer to PAS information) 0

CI
NOTE
Must be connected if COMM, CYCLE is not defined!

VALUE PASCOMMANDBLOCK Metered-value pre-assignment via digital 32-bit setpoint 0

SE_D (pointer to PAS information)

NOTE
The internal metered value can be predefined during opera-
tion.

CYCLE TIME Time for periodic restore in ms. 0

NOTE
Must be defined if SEND, COMM is not connected!

WITH_CLR BYTE Restore with clearing after n restoration processes 0

0 = absolute metered value

STARTVAL DWORD Start value for metered value during startup 0

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5.4 PAS_ACQ - Metered-Value Processing

Outputs

Table 5-4 Outputs of the PAS_ACQ block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

OUTPUT PASDATABLOCK Metered value output (pointer to PAS information)

IT

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

5.4.3 Miscellaneous

Error processing

If inputs which must be connected in order to ensure the proper functioning of the block are not linked, no in-
formation is processed in the block.

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5.4 PAS_ACQ - Metered-Value Processing

5.4.4 Example
In the example below, a counter addition is restored and cleared at cyclic intervals every 30 minutes (referred
to the full hour).
A start value for the startup is predefined via WinCC.

Bsp_PAS_ACQ.tif

Fig. 5-7 Example of a PAS_ACQ block

Description
PAS_ACQ block

The block must be defined as follows for the above-mentioned basic conditions:
• The cycle time of 30 minutes is defined on the CYCLE input.
• The WITH_CLR input must be set to 1 in order to reset the metered value after the restoration.
• The STARTVAL input is defined with 5. This is the start value used during the system startup.

The presetting of the counter content, i. e. a 32-bit scheduled value command, is specified on the VALUE input
for the running operation.

The metered value added in the buffers of the PAS_ACQ block is present on the INPUT input. The result of the
addition is output every 30 minutes on the OUTPUT output.

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5.5 PAS_LIMU and PAS_LIML - Limit Value Monitoring

5.5 PAS_LIMU and PAS_LIML - Limit Value Monitoring

CFC view

PAS_LIMU.tif

Fig. 5-8 PAS_LIMU block

PAS_LIML.tif

Fig. 5-9 PAS_LIML block

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5.5 PAS_LIMU and PAS_LIML - Limit Value Monitoring

5.5.1 Function
Use these blocks for monitoring limit values:
• Monitoring of a configurable upper limit
• Monitoring of a configurable lower limit

If the blocks exceed the specified limit, a limit value indication (single-point indication) is triggered or a Boolean
value is produced. A hysteresis can be specified for limit value editing.

PAS_LIMU
This block monitors the configurable upper limit. If a hysteresis has been defined, the violation of the upper limit
is only reset when the measured value or metered value falls below the limit, reduced by the hysteresis value.

Violations of upper limits are output as RAISED indications (otherwise CLEARED indications) or via the Bool-
ean value 1 (otherwise 0).

The following diagram illustrates the functioning of the PAS_LIMU block:

IN_100_ABS

LIMVALUE
1050
HYSVALUE
1000

SIGNAL

Fig. 5-10 Upper limit monitoring

PAS_LIML
This block monitors the configurable lower limit. If a hysteresis has been defined, the violation of a lower limit
is only reset when the measured value or metered value has exceeded the limit value, increased by the hys-
teresis value.

Violations of lower limits are output as RAISED indications (otherwise CLEARED indications) or via the Bool-
ean value 1 (otherwise FALSE).

The following diagram illustrates the functioning of the PAS_LIML block:

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5.5 PAS_LIMU and PAS_LIML - Limit Value Monitoring

IN_100_ABS

HYSVALUE
1050
LIMVALUE
1000

SIGNAL

Fig. 5-11 Lower limit monitoring

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5.5 PAS_LIMU and PAS_LIML - Limit Value Monitoring

5.5.2 Connections

Inputs

Table 5-5 Inputs of the PAS_LIMU and PAS_LIML limit value blocks

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is forwarded to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

INPUT PASDATABLOCK Input for measured or metered value (pointer to PAS information) 0
ME_FL, ME_I, IT
NOTE
Must be connected, i. e. the input is connected with the left-hand
CFC margin bar or indicated as a poll parameter within the frame-
work of ST programming!

LIMVALUE REAL Limit value, input as absolute value 0

NOTE
Must be defined!

HYSVALUE REAL Hysteresis value, absolute value of the difference to the limit value 0

IN_100 REAL 100% acquisition value, depending on the maximum transmission 0

value and the reference variable of the acquisition device

NOTE
Must be defined for measured values and is irrelevant for metered
values!

IN_100_ABS REAL 100% absolute value, corresponds to the maximum value of the 0
real mesured value.

NOTE
Must be defined for measured values and is irrelevant for metered
values!

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5.5 PAS_LIMU and PAS_LIML - Limit Value Monitoring

Outputs

Table 5-6 Outputs of the PAS_LIMU and PAS_LIML limit value blocks

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

SIGNAL BOOL Output for the derivation of the limit value indication:
1 = Limit value exceeded

INDIC PASDATABLOCK Output for limit value indication with time stamp of the incoming measured value
SP or metered value (pointer to PAS information)

NOTE
Must be interconnected, i.e. the output is always connected to the right-hand
margin bar of the CFC or set as output variable in the ST program!

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

5.5.3 Miscellaneous

Analog value standardization

Refer to Chapter 5.2, Analog Value standardization.

Fault processing
If inputs which must be connected in order to ensure the proper functioning of the block are not linked, no in-
formation is processed in the block.

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5.5 PAS_LIMU and PAS_LIML - Limit Value Monitoring

5.5.4 Example
The example below illustrates voltage monitoring. An indication is created in case of an overvoltage.

Bsp_PAS_LIMU.tif

Fig. 5-12 Example of the PAS_LIMU block

Description
PAS_LIMU block

The measured value of the voltage to be monitored is present on the INPUT input.

The following basic conditions apply for the above-mentioned example:

• A 10 V voltage range is set during the acquisition of a measured value, i. e. the
100% absolute value is 10.
• The transmission variable is a 16-bit integer value (complementary pair). It amounts to 32760 with a ref-
erence value of 120%, i. e. the 100% acquisition value is 27306.
• The limit value is 9 V, i. e. you specify the value 9.
• The hysteresis is 2 V, i. e. you specify the value 2.

A RAISED indication is created on the INDIC output whenever the measured value is greater than 9 V. If the
voltage falls below 7 V again (limit value - hysteresis), a CLEARED indication is created on the INDIC output.

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5.6 PAS_AVG - Mean value

5.6 PAS_AVG - Mean value

CFC view

PAS_AVG.tif

Fig. 5-13 PAS_AVG block

5.6.1 Function
This block provides a mean value formation. Either periodic mean values (mean value formation after N values
each) or continuous mean values (mean value formation over the last N values) can be determined with a fix
number N. The number N is specified on the MEAN_NO input, whereas the mean value type (periodic or con-
tinuous) is specified on the CONTIN input.

To read in a new measured value for the mean value formation, a valid measured value must be connected to
the INPUT input and a Boolean pulse must be triggered on the VAL_TRIG input. In this context, the block does
not evaluate the rising edge, but only the value 1. As a rule, the VAL_TRIG input should be triggered at cyclic
intervals (e. g. via the TIMER_SW block).

If a bay block is defined on the device which produces the measured value, the PAS_AVG block transmits a
new mean value with the value 0 and the bay blocking status. When the bay block is undone, another mean
value is transmitted with the value 0, but with the OK status. The internal mean value formation is reset and
restarted.

The current sum and number of read in values can be read on the VAL_SUM and VAL_CNT outputs (e .g. for
diagnosis or further processing).

With each new mean value which is not transmitted, because of a reset or a bay blocking setting, a Boolean
pulse is output on the VAL_NEW output.

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5.6 PAS_AVG - Mean value

5.6.2 Connections

Inputs

Table 5-7 Inputs of the PAS_AVG block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is forwarded to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

INPUT PASDATABLOCK Input measured/metered value (pointer to PAS information) 0

ME_FL, ME_I,
IT NOTE
Must be connected!

VAL_TRIG BOOL Read-in signal for measured value: If TRUE is present during the FALSE
call of the block, the current measured value for the mean value for-
mation is read in.

MEAN_NO DWORD Number of values for the formation of the mean value. 0

CONTIN BOOL Mean value type: FALSE

FALSE = periodic
TRUE = continuous

RESET BOOL Reset input. If TRUE is present, the current mean value formation FALSE
is reset.

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5.6 PAS_AVG - Mean value

Outputs

Table 5-8 Outputs of the PAS_AVG block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

OUTPUT PASDATABLOCK Mean value measured-value / metered-value output (pointer to PAS information)
ME_FL, ME_I,
IT

VAL_SUM REAL Actual sum of the measured/metered values read in.

VAL_CNT DWORD Actual number of measured/metered values read in.

VAL_NEW BOOL Outputs a Boolean pulse when a new mean value is formed (not for reset or bay
blocking).

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

5.6.3 Miscellaneous

Error processing

If inputs which must be connected in order to ensure the proper functioning of the block are not linked, no in-
formation is processed in the block.

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5.7 PAS_NRP - Slave Pointers

5.7 PAS_NRP - Slave Pointers

CFC view

PAS_NRP.tif

Fig. 5-14 PAS_NRP block

5.7.1 Function
You can realize a slave pointer function via the PAS_NRP block. This so-called slave pointer function saves the
current maximum or minimum of the corresponding measured or metered value.

The slave pointer value is reset via the Boolean RESET input and can be triggered via a marker command (see
chapter 3.5), an indication, etc. For this purpose, the slave pointer value is determined as follows:
• for the maximum function: to the smallest possible value
• for the minimum function: to the highest possible value

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5.7 PAS_NRP - Slave Pointers

5.7.2 Connections

Inputs

Table 5-9 Inputs of the PAS_NRP measured-value block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is passed on to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

INPUT PASDATABLOCK Input for measured or metered value (pointer to PAS information) 0
ME_FL, ME_I, IT
NOTE
Must be connected, i. e. the input is connected with the left-hand
CFC margin bar or indicated as a poll parameter within the frame-
work of ST programming!

RESET BOOL Trigger input for a slave pointer value reset FALSE

NOTE
When TRUE is present, the slave pointer is set to the current value.

MAX_MIN BOOL This parameter specifies whether the minimum or the maximum FALSE
value is saved.
FALSE = Minimum value
TRUE = Maximum value

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5.7 PAS_NRP - Slave Pointers

Outputs

Table 5-10 Outputs of the PAS_NRP measured-value block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

OUTPUT PASDATABLOCK Output for measured-value or metered-value information (pointer to

ME_FL, ME_I, IT PAS information)

NOTE
Must be connected, i. e. the output is connected with the right-hand CFC
margin bar or set as output variable in the ST program!

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

5.7.3 Miscellaneous

Error processing

If inputs which must be connected in order to ensure the proper functioning of the block are not linked, no in-
formation is processed in the block.

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5.7.4 Example
In the example below, a maximum current input is detected and stored. The detection starts after a motor star-
tup phase of 5 seconds.

Bsp_PAS_INDIC_PAS_TIMERSW_PAS_NRP.tif

Fig. 5-15 Example of a maximum current input

Description

PAS_INDIC block

A start indication for the motor is present on the INDIC input of the block. It is transmitted to the F_TRIG block
via the Boolean output.

F_TRIG block

F_TRIG is a standard block and pulse generator. The block transmits the pulse to the PAS_TIMERSW.

PAS_TIMERSW block

A start/reset timer (Mode2) is started via the rising edge R_TRIG (indication appeared) and is active for a period
of 5 seconds. This active signal is used to permanently reset the PAS_NRP block during these 5 seconds.

PAS_NRP block

The measured value of the motor current recording is present on the INPUT input of the PAS_NRP block. To
record the maximum current, the MAX_MIN input must be configured with TRUE.

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5.8 Arithmetical Blocks

5.8 Arithmetical Blocks

CFC view

PAS_ADD.tif

Fig. 5-16 PAS_ADD block

PAS_SUB.tif

Fig. 5-17 PAS_SUB block

PAS_SUBC.tif

Fig. 5-18 PAS_SUBC block

PAS_MUL.tif

Fig. 5-19 PAS_MUL block

PAS_MULC.tif

Fig. 5-20 PAS_MULC block

PAS_DIV.tif

Fig. 5-21 PAS_DIV block

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5.8.1 Function
These blocks can be used to apply simple arithmetical functions to measured values and metered values.

The blocks perform the following functions:

• Addition of measured or metered values
• Addition of a measured or metered value with a constant
• Subtraction of measured or metered values
• Subtraction of a measured or metered value with a constant
• Multiplication of measured or metered values
• Multiplication of a measured or metered value with a constant
• Division of measured or metered values

The measured values can be processed both in the 32-bit REAL format (value type 28) and in the 16-bit INTE-
GER format (value type 30). Metered values are always processed in the 32-bit INTEGER format (value
type 30).

PAS_ADD
This block adds from 2 to 4 metered or measured values in the REAL format (value type 28) or in the INTEGER
format (value type 30).

In the run sequence, PAS_ADD must always follow the blocks generating the measured or metered values.
This means that the values must have been processed prior to addition. Otherwise, a connection error is cre-
ated. The first value specifies the output data type.

PAS_ADDC
This block adds a metered or measured value in the REAL format (value type 28) or INTEGER format (value
type 30) with a constant.

In the run sequence, PAS_ADDC must always follow the blocks generating the measured or metered values.
This means that the values must have been processed prior to addition. Otherwise, a connection error is cre-
ated.

PAS_SUB
The PAS_SUB block can subtract two measured or metered values and create an item of PAS information. The
data type of the created PAS information corresponds to the data type of the PAS information which is present
on the MINU input.

PAS_SUBC
This block subtracts a metered or measured value in the REAL format (value type 28) or INTEGER format (val-
ue type 30) with a constant.

In the run sequence, PAS_SUBC must always follow the blocks generating the measured or metered values.
This means that the values must have been processed prior to subtraction. Otherwise, a connection error is
created.

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PAS_MUL
This block multiplies from 2 to 4 metered or measured values in the REAL format (value type 28) or in the IN-
TEGER format (value type 30).

In the run sequence, PAS_MUL must always follow the blocks generating the measured or metered values.
This means that the values must have been processed prior to multiplication. Otherwise, a connection error is
created. The first value specifies the output data type.

PAS_MULC
The PAS_MULC block can multiply a measured or metered value with a constant and create an item of PAS
information. The data type of the created PAS information corresponds to the data type of the PAS information
which is present on the INPUT input.

PAS_DIV
The PAS_DIV block can divide two measured or metered values and create an item of PAS information. The
data type of the created PAS information corresponds to the data type of the PAS information which is present
on the NUMER input.

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5.8.2 Connections

Inputs of the PAS_ADD and PAS_MUL blocks

Table 5-11 Inputs of the PAS_ADD and PAS_MUL blocks

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

IN1 PASDATABLOCK Input for measured or metered value 1 (pointer to PAS information) 0
ME_FL, ME_I, IT
NOTE
Must be connected, i. e. the input is connected with the left-hand
CFC margin bar or indicated as a poll parameter within the frame-
work of ST programming!

IN2 PASDATABLOCK Input for measured or metered value 2 (pointer to PAS information) 0
ME_FL, ME_I, IT
NOTE
Must be connected, i. e. the input is connected with the left-hand
CFC margin bar or indicated as a poll parameter within the frame-
work of ST programming!

up to

IN4 PASDATABLOCK Input for measured or metered value 4 (pointer to PAS information) 0
ME_FL, ME_I, IT

Outputs of the PAS_ADD and PAS_MUL blocks

Table 5-12 Outputs of the PAS_ADD and PAS_MUL blocks

Name Data Type Function/Note

Protocol Type

OUTPUT PASDATABLOCK Output for result (pointer to PAS information)

ME_FL, ME_I, IT
NOTE
Must be connected, i. e. the output must be connected to the right-hand CFC
margin bar or set as an output variable in the ST program!

DIAG WORD This output visualizes diagnostic information.

(refer to Appendix A.2).

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Inputs of the PAS_SUB and PAS_DIV blocks

Table 5-13 Inputs of the PAS_SUB and PAS_DIV blocks

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is passed on to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

MINU/ PASDATABLOCK Input for measured or metered value 1 (minuend / dividend) (pointer 0
NUMER ME_FL, ME_I, IT to PAS information).

NOTE
Must be connected, i. e. the input is connected with the left-hand
CFC margin bar or indicated as a poll parameter within the frame-
work of ST programming!

SUBTR/ PASDATABLOCK Input for measured or metered value 2 (subtrahend / divisor) (point- 0
DENOM ME_FL, ME_I, IT er to PAS information).

NOTE
Must be connected, i. e. the input is connected with the left-hand
CFC margin bar or indicated as a poll parameter within the frame-
work of ST programming!

Outputs of the PAS_SUB and PAS_DIV blocks

Table 5-14 Outputs of the PAS_SUB and PAS_DIV blocks

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

OUTPUT PASDATABLOCK Output for result (pointer to PAS information)

ME_FL, ME_I, IT
NOTE
Must be connected, i. e. the output must be connected to the right-hand CFC
margin bar or set as an output variable in the ST program!

DIAG WORD This output visualizes diagnostic information. (refer to Appendix A.2).

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Inputs of the PAS_MULC and PAS_ADDC blocks

Table 5-15 Inputs of the PAS_MULC and PAS_ADDC blocks

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is forwarded to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

INPUT PASDATABLOCK Input for measured or metered value (pointer to PAS information). 0
ME_FL, ME_I, IT
NOTE
Must be connected, i. e. the input is connected with the left-hand
CFC margin bar or indicated as a poll parameter within the frame-
work of ST programming!

CONST REAL Constant 0.0

NOTE
Must be configured!

Outputs of the PAS_MULC and PAS_ADDC blocks

Table 5-16 Outputs of the PAS_MULC and PAS_ADDC blocks

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

OUTPUT PASDATABLOCK Output for result (pointer to PAS information)

ME_FL, ME_I, IT
NOTE
Must be connected, i. e. the output must be connected to the right-hand CFC
margin bar or set as an output variable in the ST program!

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

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Inputs of the PAS_SUBC block

Table 5-17 Inputs of the PAS_SUBC block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is passed on to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

MINU PASDATABLOCK Input for measured or metered value (minuend) (pointer to 0

ME_FL, ME_I, IT PAS information).

NOTE
Must be connected, i. e. the input is connected with the left-hand
CFC margin bar or indicated as a poll parameter within the frame-
work of ST programming!

CONST REAL Constant 0.0

NOTE
Must be configured!

Outputs of the PAS_SUBC block

Table 5-18 Outputs of the PAS_SUBC block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

OUTPUT PASDATABLOCK Output for result (pointer to PAS information)

ME_FL, ME_I, IT
NOTE
Must be connected, i. e. the output must be connected to the right-hand CFC
margin bar or set as an output variable in the ST program!

DIAG WORD This output visualizes diagnostic information. (refer to Appendix A.2).

5.8.3 Miscellaneous

Error processing

If inputs which must be connected in order to ensure the proper functioning of the block are not linked, no in-
formation is processed in the block.

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5.9 PAS_CMP and PAS_CMPC - Comparison Blocks

5.9 PAS_CMP and PAS_CMPC - Comparison Blocks

CFC view

PAS_CMP.tif

Fig. 5-22 PAS_CMP block

PAS_CMPC.tif

Fig. 5-23 PAS_CMPC block

5.9.1 Function

PAS_CMP
This block compares 2 metered or measured values in the REAL format (value type 28) or INTEGER format
(value type 30). The result of the comparison is output on the corresponding Boolean output (value = TRUE).

PAS_CMPC
This block compares a metered/measured value with a constant in the REAL format (value type 28) or INTE-
GER format (value type 30). The result of the comparison is output on the corresponding Boolean output (value
= TRUE). The second value is set as a constant via the CONST input.

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5.9 PAS_CMP and PAS_CMPC - Comparison Blocks

5.9.2 Connections

Inputs

Table 5-19 Inputs of the PAS_CMP block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is forwarded to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

INPUT1 PASDATABLOCK Input for measured or metered value 1 (pointer to PAS information) 0
ME_FL, ME_I, IT
NOTE
Must be connected, i. e. the input is connected with the left-hand
CFC margin bar or indicated as a poll parameter within the frame-
work of ST programming!

INPUT2 PASDATABLOCK Input for measured or metered value 2 (pointer to PAS information) 0
ME_FL, ME_I, IT
NOTE
Must be connected, i. e. the input is connected with the left-hand
CFC margin bar or indicated as a poll parameter within the frame-
work of ST programming!

Inputs

Table 5-20 Inputs of the PAS_CMPC block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is forwarded to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

INPUT PASDATABLOCK Input measured value (pointer to PAS information) 0

ME_FL, ME_I, IT
NOTE
Must be connected, i. e. the input is connected with the left-hand
CFC margin bar or indicated as a poll parameter within the frame-
work of ST programming!

CONST REAL Constant 0.0

NOTE
Must be configured!

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Outputs

Table 5-21 Outputs of the PAS_CMP and PAS_CMPC blocks

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

GREATER BOOL INPUT1 is greater than INPUT2

GR_EQ BOOL INPUT1 is greater than or equal to INPUT2

EQUAL BOOL INPUT1 is equal to INPUT2

LE_EQ BOOL INPUT1 is less than or equal to INPUT2

LESS BOOL INPUT1 is less than INPUT2

STATUS BYTE Status

OR operation
EXSTATUS BYTE Extended Status

TIMEHIGH WORD Time stamp (bits 0 to 15)

Operand
TIMELOW DWORD Time stamp (bits 16 to 47) changed last

DIAG WORD This output visualizes diagnostic information

(refer to Appendix A.2).

5.9.3 Miscellaneous

Error processing

If inputs which must be connected in order to ensure the proper functioning of the block are not linked, no in-
formation is processed in the corresponding block.

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6 Special Blocks

Overview

This chapter explains the SICAM PAS automation blocks of the special block group. They are important tools
for the connection and processing of PAS information in SICAM PAS.

The examples in this chapter illustrate how to use these blocks.

Contents

6.1 PAS_SASC - Creating PAS Information 164

6.2 PAS_SASS - Splitting PAS Information 168

6.3 PAS_CMD_STRUCT - Splitting the Command Structure 171

6.4 PAS_MUXTEL - Multiplexer for Input 174

6.5 Saving Data Persistently 176

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6.1 PAS_SASC - Creating PAS Information

6.1 PAS_SASC - Creating PAS Information

CFC view

PAS_SASC.tif

Fig. 6-1 PAS_SASC block

6.1.1 Function
The PAS_SASC block forms an item of PAS information (PASDATABLOCK data type) from individual compo-
nents. This new item of PAS information can be further processed in other blocks.

This option can e. g. be used to simulate PAS information for testing individual states of automation blocks.

The PAS_SACS block can be used to create process information.

However, the PAS_SASC block cannot derive indications or commands. The PAS_CRI (refer to chapter 4.2)
or PAS_CRCOM blocks (refer to chapter 3.2) are available for this purpose.

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6.1 PAS_SASC - Creating PAS Information

6.1.2 Connections

Inputs

Table 6-1 Inputs of the PAS_SASC special block

Name Data type Function/note Pre-

Protocol type assign-
ment

EN BOOL This input activates the block. The input assignment is passed on to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

SEND BOOL Creates an item of PAS information during the change from FALSE to FALSE
TRUE.
FALSE = no PAS information
TRUE = creation of PAS information

NOTE
Must be connected if CHANGE is not interconnected and must not be
connected if CHANGE is connected!

CHANGE BOOL Change marker FALSE

Creates an item of PAS information during each change.

NOTE
Must be connected if SEND is not connected and must not be connect-
ed if SEND is connected!

CAUSE BYTE Cause of the PAS information 0

TESTMODE BOOL Test mode bit 0

INITCAT BYTE Initiator Category 0

STATUS BYTE Status 0

ADDCAUSE BYTE Additional Cause 0

VALTYPE BYTE Value Type 0

TIMETYPE BYTE Type of TIme 0

IDTYPE BYTE Type of identification number 0

SUPPTYPE BYTE Type of the additional information 0

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6.1 PAS_SASC - Creating PAS Information

Table 6-1 Inputs of the PAS_SASC special block (cont.)

Name Data type Function/note Pre-

Protocol type assign-
ment

DW_VALUE DWORD The value is interpreted as a double word (32 bits) and the command 0
is updated for this value.

NOTE
The use depends on the defined value type.

R_VALUE REAL The value is interpreted as real and the information is updated based 0
on this value.

NOTE
The use depends on the defined value type.

EXSTATUS BYTE Extended Status 0

TIMELOW DWORD Time stamp (bits 16 to 47) 0

NOTE
If the TIMELOW and TIMEHIGH inputs are not assigned, the internal
system time (UTC) is used.

TIMEHIGH WORD Time stamp (bits 0 to 15) 0

NOTE
If the TIMELOW and TIMEHIGH inputs are not assigned, the internal
system time (UTC) is used.

IDNO WORD Identification Number 0

SUPPINFO WORD Additional Information 0

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6.1 PAS_SASC - Creating PAS Information

Outputs

Table 6-2 Outputs of the PAS_SASC special block

Name Data type Function/note

Protocol type

ENO BOOL Looped through EN input

OUTPUT PASDATABLOCK Output for the created PAS information.

6.1.3 Miscellaneous

Error processing

Non-connected inputs are checked. If inputs which must be connected in order to ensure the proper functioning
of the block are not linked, no information is processed in the block.

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6.2 PAS_SASS - Splitting PAS Information

6.2 PAS_SASS - Splitting PAS Information

CFC view

PAS_SASS.tif

Fig. 6-2 PAS_SASS block

6.2.1 Function
The PAS_SASS block splits the structure of an item of PAS information, a tag of the type PASDATABLOCK,
into individual components. The block can e. g. be used as a diagnostic tool to check the connection in
SICAM PAS.

The block cannot indicate command structures!

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6.2 PAS_SASS - Splitting PAS Information

6.2.2 Connections

Inputs

Table 6-3 Inputs of the PAS_SASS special block

Name Data type Function/note Pre-

Protocol type assign-
ment

EN BOOL This input activates the block. The input assignment is forwarded to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

INPUT PASDATABLOCK Input for PAS information 0

NOTE
Must be connected, i. e. the input is connected with the left-hand
CFC margin bar of the CFC editor or connected with an upstream
PAS block!

Outputs

Table 6-4 Outputs of the PAS_SASS special block

Name Data type Function/note

Protocol type

ENO BOOL Looped through EN input

CHANGE BOOL Change marker

If an indication changes, the marker changes from FALSE to TRUE and vice-
versa.

MARKER DWORD Change marker

If an indication changes, the marker is increased by 1 (cycle-wise).

CAUSE BYTE Cause of the PAS information

TESTMODE BOOL Test mode bit

INITCAT BYTE Initiator Category

STATUS BYTE Status

ADDCAUSE BYTE Additional Cause

VALTYPE BYTE Value Type

TIMETYPE BYTE Type of TIme

IDTYPE BYTE Type of identification number

SUPPTYPE BYTE Type of additional information

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6.2 PAS_SASS - Splitting PAS Information

Table 6-4 Outputs of the PAS_SASS special block (cont.)

Name Data type Function/note

Protocol type

DW_VALUE DWORD The value is output as a double word.

NOTE
The use depends on the defined value type.

R_VALUE REAL The value is output as real.

NOTE
The use depends on the defined value type.

EXSTATUS BYTE Extended Status

TIMELOW DWORD Time stamp (bits 16 to 47)

TIMEHIGH WORD Time stamp (bits 0 to 15)

IDNO WORD Identification Number

SUPPINFO WORD Additional Information

6.2.3 Miscellaneous

Error processing

If inputs which must be connected in order to ensure the proper functioning of the block are not linked, no in-
formation is processed in the block.

6.2.4 Example
Refer to Example of a switchgear interlock, page 121 (PAS_INDIC and PAS_COMMCP)

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6.3 PAS_CMD_STRUCT - Splitting the Command Structure

6.3 PAS_CMD_STRUCT - Splitting the Command Structure

CFC view

PAS_CMD_STRUCT.tif

Fig. 6-3 PAS_CMD_STRUCT block

6.3.1 Function
The PAS_CMD_STRUCT block can be used to visualize the command structure of SICAM PAS. To do this, the
command on the IN input is split in three command elements:
• Command
• CO+/-
• COE+/-

They are assigned as a data structure to the outputs in order to visualize/process the elements of the individual
structures.

The block converts a command of the PASCOMMANDBLOCK type into three elements of the
PASDATABLOCK type. They can be conveniently processed by means of one PAS_SASS block each in order
to visualize the most important elements of the command / acknowledgement / termination data structure.

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6.3 PAS_CMD_STRUCT - Splitting the Command Structure

6.3.2 Connections

Inputs

Table 6-5 Inputs of the PAS_CMD_STRUCT block

Name Data type Function/note Pre-

Protocol type assign-
ment

EN BOOL This input activates the block. The input assignment is TRUE
passed on to the ENO output.
FALSE = block disabled
TRUE = block enabled

IN PASCOMMANDBLOCK Input for commands (pointer to PAS information) 0

NOTE
Must be connected!

Outputs

Table 6-6 Outputs of the PAS_CMD_STRUCT block

Name Data type Function/note

Protocol type

ENO BOOL Looped through EN input

CMD_BF PASDATABLOCK The actual command is available as a data structure for further processing
on this output.

CMD_ACK PASDATABLOCK CO+/- is available as a data structure for further processing on this output.

CMD_TERM PASDATABLOCK COE+/- is available as a data structure for further processing on this
output.

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6.3.3 Example

The following example illustrates the allocation of command elements to three PAS_SASS blocks.

sample_cmd_struct.tif

Fig. 6-4 Example with the PAS_CMD_STRUCT block

Description

PAS_CMD_STRUCT block

The command is present on the IN input. The CMD_BF, CMD_ACK and CMD_TERM outputs provide the com-
mand and the CO+/- and COE+/- command elements.

PAS_SASS blocks

The command elements are assigned to the inputs of the blocks. The individual components of the command
elements are available on the outputs.

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6.4 PAS_MUXTEL - Multiplexer for Input

6.4 PAS_MUXTEL - Multiplexer for Input

CFC view

PAS_MUXTEL.tif

Fig. 6-5 PAS_MUXTEL block

6.4.1 Function
This block allows for the connection of several sources of information to one block in the SoftPLC. It maps up
to four items of information to the input of another block.

The PAS_MUXTEL block is mainly used for the derivation of commands if several triggers may possibly exist
(e. g. switching sequence).

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6.4 PAS_MUXTEL - Multiplexer for Input

6.4.2 Connections

Inputs

Table 6-7 Inputs of the PAS_MUXTEL special block

Name Data type Function/note Pre-

Protocol type assign-
ment

IN1 PASDATABLOCK Input for information structure 1 (pointer to PAS information) 0

IN2 PASDATABLOCK Input for information structure 2 (pointer to PAS information) 0

up to

IN4 PASDATABLOCK Input for information structure 4 (pointer to PAS information) 0

Outputs

Table 6-8 Outputs of the PAS_MUXTEL special block

Name Data type Function/note

Protocol type

OUT PASDATABLOCK Output for information structure (pointer to PAS information)

NOTE
Must be connected!

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

6.4.3 Miscellaneous

Error processing

If inputs which must be connected in order to ensure the proper functioning of the block are not linked, no in-
formation is processed in the block.

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6.5 Saving Data Persistently

6.5 Saving Data Persistently

The use of persistent variables mainly serves for the following case of use (any others are theoretically possi-
ble): persistent saving of setpoint values and synchronization of these variables in redundant operating mode
during redundancy switchover.

The saving of setpoint values is useful e.g. when pre-defining limit values from a control center or the HMI for
an automatic sequence in the SoftPLC in order to ensure that these limit values have a permanent effect. If
these values were not saved persistently, all pre-defined values would have to be re-defined upon each restart
of the SoftPLC (e.g. due to a restart of the computer). If, however, these values are saved by means of persis-
tent variables, they are immediately available upon a restart of the SoftPLC.

This is extremely useful in redundant operating mode because, in case of a system failure, the changes of per-
sistent setpoint values from this system are synchronized by the active system upon a restart. Otherwise, set-
point values which are not persistent would not be applied by the temporarily inactive system.

To persistently save data in the SICAM PAS SoftPLC, use the RETAIN-declared variable. This is possible in
any POE type, except functions (no local data in accordance with IEC 61131-3) and CFC-POEs (the declaration
is not possible in the Editor).

To use persistent variables in these POE types, you declare them in a global data declaration or a program
POE of another language type (e.g. ST, IL, SFC) as a global variable with the RETAIN key word.

6.5.1 Examples

Describing the PersistentInteger user block

This block serves as a template for the persistent saving of a native IEC 61131-3 data type.

NOTE

In order to create a user block for any native IEC 61131-3 data type, all declarations of the INTEGER data type
in the example illustrated below must be replaced by the native IEC 61131-3 data type.

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6.5 Saving Data Persistently

Proceed as follows to describe the user block:

✧ Click on File > New.

The Create a new file window opens.

✧ Under the File type, navigate to the Function block and highlight the ST Function block template.

FensterErstellenEinerNeuenDateiFBST.tif

Fig. 6-6 Dialog window for creating a new file, ST function block

✧ Under File name, enter the desired designation for the function block, e. g. PersistentInteger, and click
on OK to confirm. The function block is created and shown in the editor window.

✧ In the editor window, enter the description for the PersistentInteger function block.

FunktionsbausteinPersistentIntegerBeschreiben.tif

Fig. 6-7 Describing the function block in the editor window

✧ In order to check the syntax, click on File > Check syntax. If this check was successful, 0 errors,
0 warning(s) are shown in the output window.

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6.5 Saving Data Persistently

Layout of the PersistentInteger user block

The layout of the newly created user block is as follows:

PersistentInteger.tif

Fig. 6-8 PersistentInteger user block

Describing the FB_SELC_PERS user block

This block serves as a template for the entirely persistent saving of marker commands (for setpoints).

To describe the user block:

✧ Click on File > New.

The Create a new file window opens.

✧ Under File type, navigate to the Function block and highlight the ST Function block template.

FensterErstellenEinerNeuenDateiFBST.tif

Fig. 6-9 Dialog window for creating a new file, ST function block

✧ Under File name, enter the desired designation for the function block, e. g. FB_SELC_PERS and click
on OK to confirm. The function block is created and shown in the editor window.

✧ In the editor window, enter the description for the FB_SELC_PERS function block.

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6.5 Saving Data Persistently

FunktionsbausteinBeschreiben_SELCPERS.tif

Fig. 6-10 Describing the function block in the editor window

✧ To check the syntax, click on File > Syntax check. If the check was successful, 0 errors, 0 warning(s)
are shown in the output window.

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6.5 Saving Data Persistently

Layout of the FB_SELC_PERS user block

The layout of the newly created user block is as follows:

FB_SELC_PERS.tif

Fig. 6-11 FB_SELC_PERS user block

6.5.2 PAS_DATA - Saving Data Persistently

CFC view

PAS_DATA.tif

Fig. 6-12 PAS_DATA block

Function

NOTE

The outdated PAS_DATA firmware block is replaced by the new FB_DATA block (see chapter 10.4). All existing
instances of the PAS_DATA block should be replaced with this block.

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7 Time Blocks

Overview

This chapter explains the SICAM PAS automation blocks of the time block group.

The examples in this chapter illustrate how to use thes blocks.

Contents

7.1 PAS_TIMERSW - Timer 182

7.2 PAS_TIMES - Time Block 186

7.3 PAS_GETTIME - Generating a Time Stamp 189

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7.1 PAS_TIMERSW - Timer

7.1 PAS_TIMERSW - Timer

View

PAS_TIMERSW.tif

Fig. 7-1 PAS_TIMERSW block

7.1.1 Function
The PAS_TIMERSW block provides a timer block for the SoftPLC. With every sequence of the timer, the task
is initiated again to perform calculations (if required).

To start the PAS_TIMERSW block during the startup of SICAM PAS already, the START input must be set to
TRUE. In this case, the TIMER already starts during the startup process.

The PAS_TIMERSW block provides 4 different modes: As long as the START input is set to TRUE, a pulse is
generated at cyclical intervals in the Cyclic Pulse mode. Additionally, the pulse interval is set to 0:00 h in case
of a Synchronous Pulse. The Start/Reset Timer mode describes a timer with start and a possible reset signal.
If the Delay is used, the system checks whether a signal is present without interruption during a defined time.

Cyclic pulse mode

PAS_TIMERSWcyclic.tif

Fig. 7-2 Cyclic pulse mode

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7.1 PAS_TIMERSW - Timer

Synchronized pulse mode

PAS_TIMERSWsync.tif

Fig. 7-3 Synchronized pulse mode

Start/Reset Timer mode

PAS_TIMERSWstartreset.tif

Fig. 7-4 Start/ResetTimer mode

Delay mode

PAS_TIMERSWdelay.tif

Fig. 7-5 Delay mode

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7.1 PAS_TIMERSW - Timer

7.1.2 Connections

Inputs

Table 7-1 Inputs of the PAS_TIMERSW special block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is passed on to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

MODE BYTE Mode for timer block: 0

0 = cyclic pulse
1 = synchronized pulse
2 = start/reset timer
3 = delay

RESET BOOL Reset input 0

(significance depending on the individual mode)

START BOOL Start input 0

(significance depending on the individual mode)

TTIME TIME Time setting 0

Input in T#5m10s

Outputs

Table 7-2 Outputs of the PAS_TIMERSW special block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

CHANGE BOOL The value changes from FALSE to TRUE or vice versa with each successful timer
sequence.

OUT BOOL The output for the current timer sequence is set to TRUE with every successful
timer run.

ACTIVE BOOL This output is set to TRUE as long as a timer is active.

ERR BOOL The output for the current sequence is set to TRUE with every incorrect timer run
(reset or abortion).

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

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7.1.3 Miscellaneous

Error processing

If inputs which must be connected in order to ensure the proper functioning of the block are not linked, no in-
formation is processed in the block.

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7.2 PAS_TIMES - Time Block

7.2 PAS_TIMES - Time Block

CFC view

PAS_TIMES.tif

Fig. 7-6 PAS_TIMES block

7.2.1 Function
This block splits the system-internal time format into individual components. The T_MODE input provides the
following options:
• Output of the current time stamp at the time of the block call
• Output of the present time via the two TIMEHIGH and TIMELOW inputs
• Output of the time of the present PAS information
• Output of the time stamp at the time of the trigger pulse

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7.2 PAS_TIMES - Time Block

7.2.2 Connections

Inputs

Table 7-3 Inputs of the PAS_TIMES special block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is passed on to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

T_MODE BYTE Source of the displayed time: 0

0: current time
1: time from TIMEHIGH and TIMELOW
2: time from PAS information
3:time stamp for trigger pulse

TRIGGER BOOL Triggers a time stamp with a rising-edge pulse FALSE

NOTE
Active when T_Mode = 3 !

INPUT PASDATABLOCK PAS information (pointer to PAS information) 0

NOTE
Must be connected if T_Mode = 2 !

TIMEHIGH WORD Time stamp (bits 0 to 15) 0

NOTE
Must be connected if T_Mode = 1 !

TIMELOW DWORD Time stamp (bits 16 to 47) 0

NOTE
Must be connected if T_Mode = 1 !

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7.2 PAS_TIMES - Time Block

Outputs

Table 7-4 Outputs of the PAS_TIMES special block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

T_INV BOOL Time status bit: Invalid

T_SYNC BOOL Time status bit: Synchronized

YEAR INT Years

MONTH INT Months

DAY INT Day

HOUR INT Hours

MINUTE INT Minutes

SECOND INT Seconds

MIL_SEC INT Milliseconds

DIAG WORD This output visualizes diagnostic information.

(refer to Appendix A.2).

7.2.3 Miscellaneous

Error processing

If inputs which must be connected in order to ensure the proper functioning of the block are not linked, no in-
formation is processed in the block.

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7.3 PAS_GETTIME - Generating a Time Stamp

7.3 PAS_GETTIME - Generating a Time Stamp

CFC view

PAS_GETTIME.tif

Fig. 7-7 PAS_GETTIME block

7.3.1 Function
This block can be used to generate a current UTC value or a time stamp based on the local time (independent
of the time zone) for PAS firmware blocks (e. g. for PAS_CRI, PAS_CRCOM or PAS_SAC).

The time zone of the computer on which the SICAM PAS SoftPLC runs is used for local time stamps.

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7.3 PAS_GETTIME - Generating a Time Stamp

7.3.2 Connections

Inputs

Table 7-5 Inputs of the PAS_GETTIME time block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is passed on to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

TRIGGER BOOL Toggling of the input generates a new time stamp. FALSE

MODE BYTE 0: UTC time stamp 0

1: local time stamp

Outputs

Table 7-6 Outputs of the PAS_GETTIME special block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

TIMEHIGH WORD Time stamp (bits 0 to 15)

TIMELOW DWORD Time stamp (bits 16 to 47)

7.3.3 Miscellaneous

Error processing

If inputs which must be connected in order to ensure the proper functioning of the block are not linked, no in-
formation is processed in the block.

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Overview

This chapter explains the SICAM PAS automation blocks of the sequence block group. This block is used to
realize functional sequences and switching sequences.

Contents

8.1 PAS_STATE - State 192

8.2 PAS_TRANS - Transition 195

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8.1 PAS_STATE - State

8.1 PAS_STATE - State

CFC view

PAS_STATE.tif

Fig. 8-1 PAS_STATE block

8.1.1 Function
The PAS_STATE block acts as a state, e. g. within the framework of the configuration of a state machine (refer
to Petri networks). An action is triggered when activating a state. It is defined on the SACTION input. The block
is activated via the Boolean value TRUE on the ACTIVATE input.

PAS_TRANS blocks are used to define transitions to another state (connection via CONNECT). In the se-
quence of execution, a PAS_STATE block is always located downstream of its assigned PAS_TRANS blocks.
If a transition is performed via a PAS_TRANS transition block, the previous and the following state are activat-
ed.

The subsequent transitions (PAS_TRANS block) are connected to the (PAS_STATE block) state via the
CONNECT inputs/outputs.
The step type can be defined on the SACTION input (refer to table below). Upstream transitions communicate
to the PAS_STATE block via the ACTIVATE block when it becomes active. The specified action is executed via
the SACTION input after each activation. The START input of the corresponding PAS_STATE block must be
activated for the starting state of the Petri network model.

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8.1 PAS_STATE - State

8.1.2 Connections

Inputs

Table 8-1 Inputs of the PAS_STATE block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is forwarded to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

START BOOL Identifies the starting state. FALSE

NOTE
Only one PAS_STATE block should be defined as start state.

ACTIVATE DWORD The specified action is executed as soon as this input is activated 0
and the state becomes active.

SACTION DWORD 0= OFF command 0

1= ON command
2= RAISED single-point indication
3= CLEARED single-point indication
4= ON double-point indication
5= OFF double-point indication
255= no action

Outputs

Table 8-2 Outputs of the PAS_STATE block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

CONNECT PASSTATELINK This output is connected to the CONNECT input of PAS_TRANS blocks.

OUT PASDATA Telegram output depending on the specified action – an indication, a command,
BLOCK etc. (refer to SACTION input) (pointer to PAS information)
As a rule, it is used with the COMM input of a PAS_COMMCP or directly connect-
ed to the margin bar (indication).

ACTIVE BOOL Indicates which state is active or has been activated via the
START or ACTIVATE input.

DIAG DWORD Diagnostic Information

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8.1.3 Miscellaneous

Error processing

If inputs which must be connected in order to ensure the proper functioning of the block are not linked, no in-
formation is processed in the block.

8.1.4 Example
Refer to Transformer Switching, page 250

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8.2 PAS_TRANS - Transition

8.2 PAS_TRANS - Transition

CFC view

PAS_TRANS.tif

Fig. 8-2 PAS_TRANS block

8.2.1 Function
The PAS_TRANS block acts as a transition e. g. within the framework of the configuration of a Petri network.
The transition is connected to the downstream states (PAS_STATE block) via the CONNECT input. The tran-
sition switches as soon as the OK condition is met. The upstream states (PAS_STATE block) are activated via
the ACTIVATE output.

Depending on the individual setting, the PAS_TRANS block calls the task again via the STARTTASK input.
Blocks which are positioned before the PAS_TRANS block in the sequence of execution are computed again.

The task is initiated via the Boolean value TRUE on the STARTTASK input.

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8.2 PAS_TRANS - Transition

8.2.2 Connections

Inputs

Table 8-3 Inputs of the PAS_TRANS block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is forwarded to TRUE
the ENO output.
FALSE = block disabled
TRUE = block enabled

CONNECT PASSTATELINK Connection to the downstream state. 0

NOTE
The transition can only switch if the downstream state is active.

OK BOOL Switching condition for transition. The transition switches if TRUE is FALSE
present.

STARTTASK BOOL Calling the task: FALSE

TRUE = calculate one cycle
FALSE = do not calculate one cycle

Outputs

Table 8-4 Outputs of the PAS_TRANS block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

ACTIVATE BOOL This output is set to TRUE when the transition switches.

MARKER DWORD Number of transition switching operations.

DIAG DWORD Diagnostic Information

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8.2.3 Miscellaneous

Error processing

If inputs which must be connected in order to ensure the proper functioning of the block are not linked, no in-
formation is processed in the block.

8.2.4 Example
Refer to Transformer Switching, page 250.

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Overview

This chapter illustrates the principles of user-specific automation blocks. For a more detailed functional descrip-
tion of these blocks, contact your Siemens partner.

Contents

9.1 PAS_ANDI_EX, PAS_ORI_EX - Logic Linking of Indications 200

9.2 PAS_GROUPI_EX - Creating Group Indications 204

9.3 PAS_UDIFF - Processing Limit Value Violations 206

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9.1 PAS_ANDI_EX, PAS_ORI_EX - Logic Linking of Indications

9.1 PAS_ANDI_EX, PAS_ORI_EX - Logic Linking of Indications

CFC view

PAS_ANDI_EX.tif

Fig. 9-1 PAS_ANDI_EX block

PAS_ORI_EX.tif

Fig. 9-2 PAS_ORI_EX block

9.1.1 Function

PAS_ANDI_EX
The PAS_ANDI_EX block differs from PAS_ANDI with regard to status processing only.

The status processing of the PAS_ANDI_EX block is compatible with the status processing of SICAM SAS. The
exceptions of the PAS_ANDI block do not apply for this block.

The PAS_ANDI_EX block realizes AND operations for group indications of single-point and/or double-point in-
dications. The block can perform an AND operation for up to 4 indications at the same time. If several indica-
tions exist, it can be cascaded.

AND operation

The group indication is set as soon as all indications are present (RAISED). When the first of the linked indica-
tions disappears, the group indication is cleared, i. e. set to CLEARED. The time of the indication which was
present last or the time of the indication which disappeared first is applied for the result indication.

The startup indication is transmitted as soon as the startup indications of all inputs have been received.

The status of the raising group indication corresponds to the OR link of the states of all indications on the in-
puts.

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PAS_ORI_EX
The PAS_ORI_EX block differs from the PAS_ORI with regard to status processing only.

The status processing of the PAS_ORI_EX block is compatible with the status processing of SICAM SAS. The
exceptions of the PAS_ORI block do not apply for this block.

The PAS_ORI_EX block manages OR operations for group indications of single-point and/or double-point in-
dications. The block can perform an OR operation for up to 4 indications at the same time. If several indications
exist, it can be cascaded.

The blocks link the logical values of indications. For example, they form one logical value (e. g. 01 becomes
FALSE) from the value of a double-point indication and perform a logical link for this value. A pointer to the
result indication (PAS information) is output.

The result indication always has the 'double-point indication' type. The cause of the transmission (CAUSE) is
always set to SPONTANEOUS for a result indication.

OR operations

The group indication is set as soon as the first linked indication is present (RAISED). When the last of the linked
indications disappears, the group indication is cleared, i. e. set to CLEARED. The time of the indication which
rises first or is cleared last is applied for the result indication.

The startup indication is transmitted as soon as the startup indications of all inputs have been received.

The status of the cleared group indication corresponds to the OR link of the states of all indications on the in-
puts.

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9.1 PAS_ANDI_EX, PAS_ORI_EX - Logic Linking of Indications

9.1.2 Connections

Inputs

Table 9-1 Inputs of the PAS_ANDI_EX and PAS_ORI_EX link blocks

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

IN1 PASDATABLOCK The address of an indication structure which is to be linked is 0

SP, DP applied to this input.

NOTE
Must be interconnected, i. e. the input is linked to an item of
PAS information!

up to

IN4 PASDATABLOCK The address of an indication structure which is to be linked is 0

SP, DP applied to this input.

NOTE
Must be interconnected, i. e. the input is linked to an item of
PAS information!

Outputs

Table 9-2 Outputs of the PAS_ANDI_EX and PAS_ORI_EX link blocks

Name Data Type Function/Note

Protocol Type

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2)

EN_EVENT BOOL TRUE in the case of a value change (BVALUE), otherwise FALSE

ALARM BOOL PAS_ANDI_EX:

Toggling with each CLEARED indication on the
PAS_ORI_EX input:
Toggling upon an incoming RAISED indication

BVALUE BOOL Current link value

INDIC PASDATABLOCK The address of the result indication is present on this output.
DP
NOTE
Must be interconnected, i. e. the input is linked to an item of PAS information!

EXSTATUS BYTE Extended Status

TIMEHIGH WORD Time stamp (bits 0 to 15) of the result indication

TIMELOW DWORD Time stamp (bits 16 to 47) of the result indication

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9.1.3 Miscellaneous

Error processing

All incoming indications are checked for plausibility.

9.1.4 Example
Refer to Example of a PAS_ANDI and PAS_TSP block, page 93,
refer to Example of a PAS_ANDI, PAS_ORI and PAS_INVER block, page 100.

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9.2 PAS_GROUPI_EX - Creating Group Indications

9.2 PAS_GROUPI_EX - Creating Group Indications

CFC view

PAS_GROUPI_EX.tif

Fig. 9-3 PAS_GROUPI_EX block

9.2.1 Function
The PAS_GROUPI_EX block is a group indication block. It allows for the detection of changes within a group
indication. Besides this, it can be configured to respond to spontaneous changes only. The configuration is per-
formed via groups in the SICAM PAS UI.
The individual values in an automation program do not need to be connected. Only a connection from the PAS-
GROUP data type to a PAS_GROUPI_EX block is performed.

The block processes single-point and double-point indications. It has two operating modes:
• Respond to spontaneous changes only
• Respond to all changes

In the spontaneous changes mode (SPON input assigned with TRUE), a double-point indication is created
on the input for each new, incoming, spontaneous and valid indication. Its value toggles upon each creation.
The value on the ALARM output also toggles. The BVALUE output value is TRUE if the outgoing indication is
RAISED. It is FALSE if the output indication is CLEARED.

With each new outgoing indication, the EN_EVENT output is set to TRUE for this call of the automation pro-
gram.

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9.2 PAS_GROUPI_EX - Creating Group Indications

9.2.2 Connections

Inputs

Table 9-3 Inputs of the PAS_GROUPI_EX block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

IN PASGROUP Indication input (group) 0

SPON BOOL FALSE = the block processes all incoming indications FALSE
TRUE = the block responds only to spontaneous indications

Outputs

Table 9-4 Outputs of the PAS_GROUPI_EX block

Name Data Type Function/Note

Protocol Type

SIZE WORD Number of integrated indications

MARKER DWORD Change marker for the outgoing indication

EN_EVENT BOOL TRUE for a new outgoing indication for the time of a poll.

ALARM BOOL Toggles with each new outgoing indication.

BVALUE BOOL Current output value in Boolean representation style.

(TRUE = raised, FALSE = cleared)

INDIC PASDATABLOCK Output for outgoing indication, DP

DP (pointer to PAS information)

NOTE
Must be connected!

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2)

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9.3 PAS_UDIFF - Processing Limit Value Violations

9.3 PAS_UDIFF - Processing Limit Value Violations

CFC view

PAS_UDIFF.tif

Fig. 9-4 PAS_UDIFF block

9.3.1 Function
The PAS_UDIFF block provides information about limit value violations depending on boundary conditions.

If a limit value is violated for a period T1 and if the measured-value change for the evaluation period T2 is great-
er than a defined threshold value, a Boolean output tag is set to True.

The block can have an upper and a lower limit value. Independent threshold values and time intervals can be
defined for both limit values.

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9.3 PAS_UDIFF - Processing Limit Value Violations

Example

In the present example, the measured value falls below the lower limit.

udiff_example.tif

Fig. 9-5 Example, measured value below the lower limit

The BENC output is assigned TRUE if:

• the U_REF measured value falls below the U_ENC limit for a period of T1_ENC (condition 1)

and if
• the measured-value change (current measured valuecurrent - Measured ValueT2_ENC) is greater than the
DU_ENC limit (T2_ENC > T1_ENC; 2 condition).

The BENC output is reset if the U_REF measured value exceeds the U_ENC limit again.

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9.3.2 Connections

Inputs

Table 9-5 Inputs of the PAS_UDIFF block

Name Data Type Function/Note Pre-

Protocol Type assign-
ment

EN BOOL This input activates the block. The input assignment is forwarded TRUE
to the ENO output.
FALSE = block disabled
TRUE = block enabled

RESET BOOL FALSE = operation FALSE

TRUE = saved measured values are deleted, all outputs = 0, no
processing

U_REF PASDATABLOCK Measured value

ME_FL (pointer to PAS information)

U_ENC REAL Lower limit [V] 232000.0

(1)

DU_ENC REAL Lower threshold [V] 750.0

(1)

T1_ENC TIME Minimum acquisition time for a violation of the lower limit [s]: Must T#10s
(1) be a multiple of T_MCYC

T2_ENC TIME Time for measured value for the lower threshold [s]: Must be a mul- T#40s
(1) tiple of T_MCYC

U_DEC REAL Upper limit [V] 240000.0

(1)

DU_DEC REAL Upper threshold [V] 750.0

(1)

T1_DEC TIME Minimum acquisition time for a violation of the upper limit [s]: Must T#5s
(1) be a multiple of T_MCYC

T2_DEC TIME Time for measured value for the upper threshold [s]: Must be a T#40s
(1) multiple of T_MCYC

T_MCYC TIME Time grid for measured-value acquisition [s] T#1s

(1)

(1) In case of a change of the input during operation, the block performs an internal RESET.

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Outputs

Table 9-6 Outputs of the PAS_UDIFF block

Name Data Type Function/Note

Protocol Type

ENO BOOL Looped through EN input

ERROR BOOL 0 = OK
TRUE = error

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2)

BENC BOOL Output signal for the trigger of a violation of the lower threshold

BDEC BOOL Output signal for the trigger of a violation of the upper threshold

BU_T1ENC BOOL Output signal for acquisition time, lower limit reached

BU_T1DEC BOOL Output signal for acquisition time, upper limit reached

U_T1_ENC REAL Voltage value at the current time T1_ENC

U_T1_DEC REAL Voltage value at the current time T1_DEC

U_T2_ENC REAL Voltage value at the current time T2_ENC

U_T2_DEC REAL Voltage value at the current time T2_DEC

DU REAL Calculated difference

U_REF_O REAL Measured value as REAL variable

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10 PAS Standard Library

Overview

This chapter explains the blocks of the PAS standard library. The library is always installed and can be used in
the current project.

Contents

10.1 Using the PAS Standard Library 212

10.2 BusBarEmulation Block 213

10.3 CTRL_MUX Block 215

10.4 FB_DATA Block - Saving Data Persistently 217

10.5 FB_GROUPI Block 219

10.6 FB_NGCGROUPI Block 221

10.7 SFC_RunCyclic Block 223

10.8 SLCT_MUX Block 225

10.9 ToggleSP Block 227

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10.1 Using the PAS Standard Library

10.1 Using the PAS Standard Library

Prerequisites

A project must be open in the SICAM PAS SoftPLC UI.

Using the PAS standard library

To use the PAS standard library:

✧ In the project browser of the SICAM PAS SoftPLC UI, click the Bib tab.

✧ Under Libraries, right-click on PASStdLib and select Use in Current Project in the context menu.

✧ In the Catalog, right-click the POUs tab and select Refresh in the context menu. The blocks of the
PAS standard library are shown under Library.

PASStandardBibliothek.tif

Fig. 10-1 PAS standard library in the catalog

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10.2 BusBarEmulation Block

10.2 BusBarEmulation Block

CFC view

BusBarEmulation.tif

Fig. 10-2 BusBarEmulation block

10.2.1 Function
This block is used to select a busbar voltage from the voltages on two line feeders. Depending on the position
of the voltage transformer relay and the applied voltages, one of the voltages is reflected on the output (de-
pending on the status of the voltages and the position of the voltage transformer relays). The system always
tries to assign a valid voltage to the output. If one of the applied voltages becomes invalid (invalid or overflow),
the alternative voltage is reflected on the output, provided that it is valid and that no overflow has occurred. If
both voltages are valid, either the first or the second voltage is reflected on the output, depending on the state
of the voltage transformer relays (outgoing single-point indication).

If both indications for the voltage transformer relay drop-out are raising, a ZERO indication is created, i. e. a
voltage with the value 0.0 and the Invalid status.

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10.2 BusBarEmulation Block

10.2.2 Connections

Inputs

Table 10-1 Inputs of the BusBarEmulation block

Name Data Type Function/Note Pre-assignment

Protocol Type

Trip1 PASDATABLOCK Relay drop-out for Voltage 1 (single-point indication) 0

Trip2 PASDATABLOCK Relay drop-out for Voltage 2 (single-point indication) 0

Volt1 PASDATABLOCK Voltage 1 (measured value, floating point) 0

Volt2 PASDATABLOCK Voltage 2 (measured value, floating point) 0

Outputs

Table 10-2 Outputs of the BusBarEmulation block

Name Data Type Function/Note

Protocol Type

ResVolt PASDATABLOCK Voltage resulting from the processing of incoming indications (measured value,
floating point)

DIAG WORD This output visualizes diagnostic information (refer to A.2).

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10.3 CTRL_MUX Block

10.3 CTRL_MUX Block

CFC view

CTRL_MUX.tif

Fig. 10-3 CTRL_MUX block

10.3.1 Function
The CTRL_MUX block selects the measured value to be transmitted and makes it available on the OUT output.
The SELECT input is connected to the SELECT output of the SLCT_MUX block (see chapter 10.8). The mea-
sured value whose number is present on the SELECT input is now shown on the output. If the numeric value
on the SELECT input is greater than 7, the value 0.0 is shown on the OUT output.

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10.3 CTRL_MUX Block

10.3.2 Connections

Inputs

Table 10-3 Inputs of the CTRL_MUX block

Name Data Type Function/Note

Protocol Type

SELECT INTEGER Selection of the measured value to be shown on the output

IN_0 PASDATABLOCK Measured-value input 0

IN_1 PASDATABLOCK Measured-value input 1

IN_2 PASDATABLOCK Measured-value input 2

IN_3 PASDATABLOCK Measured-value input 3

IN_4 PASDATABLOCK Measured-value input 4

IN_5 PASDATABLOCK Measured-value input 5

IN_6 PASDATABLOCK Measured-value input 6

IN_7 PASDATABLOCK Measured-value input 7

Outputs

Table 10-4 Outputs of the CTRL_MUX block

Name Data Type Function/Note

Protocol Type

OUT PASDATABLOCK Measured-value output

ERROR BOOL Shows errors on the SELECT input

DIAG BYTE This output visualizes diagnostic information (refer to A.2)

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10.4 FB_DATA Block - Saving Data Persistently

10.4 FB_DATA Block - Saving Data Persistently

CFC view

FB_DATA.tif

Fig. 10-4 FB_DATA block

10.4.1 Function

NOTE

The FB_DATA block replaces the outdated PAS_DATA firmware block (see chapter 6.5.2). All existing instanc-
es of the PAS_DATA block can be replaced with this block.

In order to persistently save data create type-specific user blocks that use RETAIN-declared variables, refer to
Layout of the PersistentInteger user block, page 178 and Layout of the FB_SELC_PERS user block, page 180

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10.4 FB_DATA Block - Saving Data Persistently

10.4.2 Connections

Inputs

Table 10-5 Inputs of the FB_DATA special block

Name Data type Function/note Pre-

Protocol type assign-
ment

PAS_IN PASDATABLOCK PAS information 0

If interconnected, this information is always kept persistent.

R_CHG BOOL Trigger input for values of the REAL data type on R_IN input FALSE
Values are only applied if the input is toggled.

R_IN REAL Input for values of the REAL data type 0.0
This input is kept persistent if no PAS information is interconnected
on the PAS_IN input.

Outputs

Table 10-6 Outputs of the FB_DATA special block

Name Data type Function/note

Protocol type

PAS_OUT PASDATABLOCK Persistent PAS information

R_OUT REAL Persistent value of the REAL data type

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10.5 FB_GROUPI Block

10.5 FB_GROUPI Block

CFC view

FB_GROUPI.tif

Fig. 10-5 FB_GROUPI block

10.5.1 Function
This ST block behaves like the PAS_GROUPI firmware block (see chapter 4.8).

It serves as an implementation example for the use of the PAS_GROUPINDIC firmware block (see
chapter 4.12) or as a template for the creation of the group indication blocks
.

NOTE

The code of the block can be viewed in the SICAM PAS installation directory, \PlcUI\ini\lib\PASStdLib subdi-
rectory.

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10.5 FB_GROUPI Block

10.5.2 Connections

Inputs

Table 10-7 Inputs of the FB_GROUPI block

Name Data Type Function/Note Pre-assignment

Protocol Type

IN PASGROUP Indication input (group) 0

Outputs

Table 10-8 Outputs of the FB_GROUPI block

Name Data Type Function/Note

Protocol Type

SIZE WORD Number of indications in the indication group on the input

MARKER DWORD Change marker for the outgoing indication

EN_EVENT BOOL TRUE for value change (BVALUE)

ALARM BOOL Toggling in case of a new RAISED indication with the spontaneous cause

BVALUE BOOL Current link value

INDIC PASDATABLOCK Output for result indication (pointer to PAS information)

DP
NOTE
Must be connected!

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

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10.6 FB_NGCGROUPI Block

10.6 FB_NGCGROUPI Block

CFC view

FB_NGCGROUPI.tif

Fig. 10-6 FB_NGCGROUPI block

10.6.1 Function
Apart from one exception, this ST block behaves like the PAS_GROUPI firmware block (see chapter 4.8). The
exception is that the block does not consider blocked indications (bay and/or telecontrol block). If an indica-
tion is transmitted to the block as blocked, the block ignores it as long as the blocking persists. The group in-
dication pending on the output therefore never receives the bay and/or bay block active status.

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10.6 FB_NGCGROUPI Block

10.6.2 Connections

Inputs

Table 10-9 Inputs of the FB_NGCGROUPI block

Name Data Type Function/Note Pre-assignment

Protocol Type

IN PASGROUP Indication input (group) 0

Outputs

Table 10-10 Outputs of the FB_NGCGROUPI block

Name Data Type Function/Note

Protocol Type

SIZE WORD Number of indications in the indication group on the input

MARKER DWORD Change marker for the outgoing indication

EN_EVENT BOOL TRUE for value change (BVALUE)

ALARM BOOL Toggling in case of a new RAISED indication with the spontaneous cause

BVALUE BOOL Current link value

INDIC PASDATABLOCK Output for result indication (pointer to PAS information)

DP
NOTE
Must be connected!

DIAG WORD This output visualizes diagnostic information (refer to Appendix A.2).

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10.7 SFC_RunCyclic Block

10.7 SFC_RunCyclic Block

CFC view

SFC_RunCyclic.tif

Fig. 10-7 SFC_RunCyclic block

10.7.1 Function
In order to be able to use a program of the SFC IEC language (Sequential Function Chart) in the
SICAM PAS SoftPLC, a SFC_RunCyclic is required. This ensures the cyclic run of the active resource.

The block must be instantiated in a program which is linked to the active resource. Additionally, it must be called
up in each run without conditions.

The following example illustrates the available Main.ST ST program (cycle time 100ms):

BeispielSFC_RunCyclic.tif

Fig. 10-8 Example for the SFC_RunCyclic block

NOTE

If one or several PAS_TIMERSW block(s) (see chapter 7.1) is (are) already used in the active resource for the
creation of cyclic pulses, the use of the SFC_RunCyclic block is possibly not required, since the resource is
already cyclically processed.

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10.7 SFC_RunCyclic Block

10.7.2 Connections

Inputs

Table 10-11 Inputs of the SFC_RunCyclic block

Name Data Type Function/Note Pre-assignment

Protocol Type

CYCLETIME TIME Cycle time of the active resource, the time must 0
be >= 10 ms

Outputs

Table 10-12 Outputs of the SFC_RunCyclic block

Name Data Type Function/Note

Protocol Type

ERR BOOL FALSE: the defined cycle time is plausible, the block functions properly
TRUE: the defined cycle time is not plausible, the block is inactive

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10.8 SLCT_MUX Block

10.8 SLCT_MUX Block

CFC view

SLCT_MUX.tif

Fig. 10-9 SLCT_MUX block

10.8.1 Function
The SLCT_MUX block is used to select the measured value to be transmitted by means of a single-point/dou-
ble-point indication.

With a raising single/double-point indication on one of the inputs, the number of the input is shown on the
SELECT output. The indication starts a timer which ensures that the number of the input is present at least dur-
ing the specified runtime of the timer on the SELECT output.

If no or more than one single/double-point indications is raising on the input, the value 65535 is shown on the
SELECT output.

As long as the SELECT output is active, the single-point indication is raising on the OUT output. This output
is used for the cascading of several SLCT_MUX blocks.

The SELECT output is connected to the SELECT input of the CTRL_MUX block (see chapter 10.3).

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10.8 SLCT_MUX Block

10.8.2 Connections

Inputs

Table 10-13 Inputs of the SLCT_MUX block

Name Data Type Function/Note

Protocol Type

TIMEOUT TIME Time during which a value is present at least on the SELECT output.

IN_0 PASDATABLOCK The single/double-point indication creates 0 on the SELECT output

IN_1 PASDATABLOCK The single/double-point indication creates 1 on the SELECT output

IN_2 PASDATABLOCK The single/double-point indication creates 2 on the SELECT output

IN_3 PASDATABLOCK The single/double-point indication creates 3 on the SELECT output

IN_4 PASDATABLOCK The single/double-point indication creates 4 on the SELECT output

IN_5 PASDATABLOCK The single/double-point indication creates 5 on the SELECT output

IN_6 PASDATABLOCK The single/double-point indication creates 6 on the SELECT output

IN_7 PASDATABLOCK The single/double-point indication creates 7 on the SELECT output

Outputs

Table 10-14 Outputs of the SLCT_MUX block

Name Data Type Function/Note

Protocol Type

SELECT INTEGER Shows which input is active and is connected with the SELECT input of the
CTRL_MUX block (see chapter 10.3).

OUT PASDATABLOCK Single-point indication for the cascading of several SLCT_MUX blocks

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10.9 ToggleSP Block

10.9 ToggleSP Block

CFC view

ToggleSP.tif

Fig. 10-10 ToggleSP block

10.9.1 Function
With each incoming, spontaneous indication on the input (any type), the block creates a single-point indication
with a toggling value on the output. The time stamp and the status are applied by the incoming indication. The
created single-point indication always has the spontaneous cause. During startup, a cleared single-point indi-
cation with the General Interrogation cause is created once.

10.9.2 Connections

Inputs

Table 10-15 Inputs of the ToggleSP block

Name Data Type Function/Note Pre-assignment

Protocol Type

INDIC PASDATABLOCK Incoming indication, any type 0

Outputs

Table 10-16 Outputs of the ToggleSP block

Name Data Type Function/Note

Protocol Type

OUT PASDATABLOCK Toggling single-point indication

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10.9 ToggleSP Block

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11 Examples

Overview

This chapter presents possible solutions for frequently occurring task definitions.

Contents

11.1 Switchgear Interlocking for Busbar Feeder 230

11.2 Switching Sequences of the SoftPLC 233

11.3 Redundancy Switchover During Switching Sequences in SFC 245

11.4 Transformer Switching 250

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11.1 Switchgear Interlocking for Busbar Feeder

11.1 Switchgear Interlocking for Busbar Feeder

In the following example, a switchgear interlocking is defined for a busbar change (refer to Figure 11-1) which
is initiated by the control center.

SS1 busbar

SS2 busbar

Q1 disconnector Q2 disconnector

Q0 circuit breaker

Fig. 11-1 Circuit breaker feeder

Switching conditions

The following switching conditions must be met for the busbar change represented in Figure 11-1:
• The Q0 circuit breaker can only be switched if the Q1 and Q2 disconnectors are not in the intermediate
position.
• The Q1 and Q2 disconnectors can only be switched if the Q0 circuit breaker is disconnected.

Logical equations

The logical equations regarding the above-mentioned switching conditions are as follows:

(I) Q0 ON = ( Q1 ON or Q1 OFF ) and ( Q2 ON ro Q2 OFF )

(II) Q1 ( ON ) ⁄ ( OFF ) = Q0 OFF

(III) Q2 ( ON ) ⁄ ( OFF ) = Q0 OFF

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11.1 Switchgear Interlocking for Busbar Feeder

➊ ➏

➋ ➐

➌ ➑

Beispiel6.tif

Fig. 11-2 Interlock of a busbar feeder

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11.1 Switchgear Interlocking for Busbar Feeder

Description

PAS_INDIC local control

This block locks the busbar feeder via the control center if the switching authority is local (key switch - INDIC ➍
input).

PAS_COMMCP Q1/Q2

The PAS_COMMCP1 Q1 and PAS_COMMCP2 Q2 blocks monitor the transmission of the switching
commands to the Q1 and Q2 disconnectors for both switching directions (ON and OFF) depending on the
signals on the REL_ON and REL_OFF enable inputs. Both are 1-active.

The command output is performed on the OUT outputs (➏, ➐).

PAS_COMMCP Q0

PAS_COMMCP Q0 monitors the issue of the switching command for the Q0 circuit breaker for the ON
switching direction depending on the signal on the REL_ON enable input (TRUE-active).

The command output is performed on the OUT ➑ output.

AND
The AND block performs the AND linkage of the logical equation (I). An AND operation of intermediate position
indications is performed via the PAS_INDIC Q1 and Q2 blocks and assigned to the REL_ON enable input of
the PAS_COMMCP Q0 block.

PAS_INDIC Q1/PAS_INDIC Q2

If required, these blocks derive the intermediate position indication of the Q1 and Q2 disconnectors. The
PAS_INDIC inputs are connected to the INDIC outputs of the PAS_COMMCP Q1 and PAS_COMMCP Q2
blocks.

The intermediate position indication is output on the NOT_DBI outputs.

PAS_INDIC Q1/Q2 switchgear interlocking

This block produces the enable or interlock signal for the PAS_COMMCP Q1 and PAS_COMMCP Q2 blocks
depending on the logical equations (II) and (III). The INDIC input of the block is connected to the
INDIC output of the PAS_COMMCP Q0 block. Whenever the Q0 circuit breaker is switched OFF, the OFF
output is TRUE (1). It controls the enable inputs of the PAS_COMMCP Q1 and PAS_COMMCP Q2 blocks.

Connection via margin bars

➊ Q2 process feedback

➋ Q1 process feedback

➌ Q0 process feedback

➍ Local control indication

➏ Q2 command

➐ Q1 command

➑ Q0 command

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11.2 Switching Sequences of the SoftPLC

11.2 Switching Sequences of the SoftPLC

11.2.1 Overview
Several block types are used to specify a switching sequence in the SoftPLC. The following information must
be specified by means of these blocks within the framework of parameterization:
• Information on the switching sequence start
• Control of the switching sequence, check of the switching conditions and command generation
• Command output

11.2.2 Switching Sequence in SFC

By the example of the Release Circuit Breaker for Maintenance, this chapter explains how these items are
implemented in the SoftPLC. Table 11-1 illustrates the structure on which this example is based.

Table 11-1 Contents of the Enable Circuit Breaker for Maintenance sample switching sequence

Switching Sequence Switching Operation Action Command

Step Step

1 Break_OFF Circuit breaker OFF Command OFF

2 Disco1_OFF Open disconnector 1 Command OFF

3 Disco2_OFF Open disconnector 2 Command OFF

4 Earth1_ON Close grounding Command ON

conductor 1

5 Earth2_ON Close grounding Command ON

conductor 2

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11.2 Switching Sequences of the SoftPLC

11.2.2.1 Variable Declaration

To execute the variable declaration for the SFC example:

✧ As a local variable, create a PAS_SELC instance in order to enable the processing of the start command.

✧ For each outgoing command, create:

− a PAS_CRCOM instance for the command derivation and
− a PAS_COMMCP instance for triggering and processing the command.
The 5 outgoing commands are included in the declaration section of the external variables:
• 1 Circuit breaker CIRCUITBREAKER
• 2 Disconnectors DISCONNECTOR1/2 and
• 2 Grounding conductors EARTHINGSWITCH1/2

and the incoming start command.

VariableDeclaration.tif

Fig. 11-3 Variable declaration

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11.2 Switching Sequences of the SoftPLC

11.2.2.2 Description of the Graphic Elements

• Init initialization step:

During this step, all PAS firmware block instances
used are initialized and the start command is
processed.
• 2 transitions which check whether the start
command has been sent with ON (Start) or whether
an error has occurred (Start_NOK).
In case of an error (i.e. start command sent with
OFF), the system jumps to the Seq_NOK error
processing step.

• The first switching operation step Break_OFF

opens the circuit breaker.
• 2 transitions which check whether the command for
opening the circuit breaker has been executed
successfully (Break_OK) or not (Break_NOK).
In case of an error (negative response to command
acknowledgment or command termination), the
system jumps to the Seq_NOK error processing
step.

• The second switching operation step Disco1_OFF

opens Disconnector 1.
• 2 transitions which check whether the command for
opening Disconnector 1 has been executed
successfully (Disco1_OK) or not (Disco1_NOK).
In case of an error (negative response to command
acknowledgment or command termination), the
system jumps to the Seq_NOK error processing
step.

Cont. with Section 2.

SFCOverview1.tif

Fig. 11-4 Description of the graphic elements (Section 1)

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11.2 Switching Sequences of the SoftPLC

Cont. of Section 1:
• The third switching operation step Disco2_OFF
opens Disconnector 2.
• 2 transitions which check whether the command for
opening Disconnector 2 has been executed
successfully (Disco2_OK) or not (Disco2_NOK).
In case of an error (negative response to command
acknowledgment or command termination), the
system jumps to the Seq_NOK error processing
step.

• The fourth switching operation step Earth1_ON

closes Earthing Switch 1.
• 2 transitions which check whether the command for
opening Earthing Switch 1 has been executed
successfully (Earth1_OK) or not (Earth1_NOK).
In case of an error (negative response to command
acknowledgment or command termination), the
system jumps to the Seq_NOK error processing
step.

• The last switching operation step Earth2_ON closes

Earthing Switch 2.
• 2 transitions which check whether the command for
opening Earthing Switch 2 has been executed
successfully (Earth2_OK) or not (Earth2_NOK).

• 2 steps:
The Seq_OK step positively terminates the start
command because the entire switching sequence
has been successful. The Seq_NOK step, which
also serves as a jump target for the error processing
of all steps, negatively terminates the start
command because an error has occurred.
• 2 transitions (Dummy1 and Dummy2), which
always initiate a switching operation, are required in
order to jump to the Init initialization step because a
direct jump back is not permissible after this step.
• Jump back to the Init initialization step.
SFCOverview2.tif

Fig. 11-5 Description of the graphic elements (Section 2)

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11.2 Switching Sequences of the SoftPLC

11.2.2.3 Detailed Description of Individual Steps, Transitions, and Jumps

Initialization step

The initialization step in the current example is designated Init.

• First, all PAS firmware blocks are called up and their connections are established.
• Afterwards, all constant specifications are assigned in order to ensure that no further assignment is
required later: Since these constant specifications are never overwritten, the assignment during the
initialization step is sufficient.
• At last, the start command is processed but not yet terminated, because the termination is to occur
depending on the success of the entire switching sequence.

InitStep.tif

Fig. 11-6 Init initialization step

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11.2 Switching Sequences of the SoftPLC

Start and Start_NOK transitions

The two Start and Start_NOK transitions are performed afterwards.

Start enables the next switching operation step if the start command has been received with the ON switching
direction.

StartTransOK.tif

Fig. 11-7 Start transition

The Start_NOK transition activates the Seq_NOK error processing jump if the command has been received,
but the switching direction is OFF.

StartTransNOK.tif

Fig. 11-8 Start_NOK transition

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11.2 Switching Sequences of the SoftPLC

Break_OFF switching operation step

The Break_OFF switching operation step triggers the command for opening the circuit breaker.

✧ Call up the corresponding PAS_CRCOM instance with the value TRUE on the SEND input. All other
parameters have already been assigned during the Init initialization step. Using the SEND input for
triggering the command ensures that the command is triggered only once even if this switching operation
step is executed several times.

✧ Afterwards, you call up the corresponding PAS_COMMCP instance

− in order to actually trigger the command and
− process its acknowledgments.
Since the acknowledgments are processed during this switching operation step, the block instance does not
need to be called up again during the following transitions.

BreakerStep.tif

Fig. 11-9 Break_OFF switching operation step

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11.2 Switching Sequences of the SoftPLC

Break_OK and Break_NOK transition

The following Break_OK transition is switched if the command execution has been acknowledged positively.

As can be seen in this example, the PAS_COMMCP instance is not called up again, but only its OK output is
checked. This is not necessary because the active Break_OFF switching operation step and its subsequent
transitions are always executed during one computing cycle and the block is already called up during this
switching operation step.

BreakerTransOK.tif

Fig. 11-10 Break_OK transition

Analogous to the Break_OK transition, Break_NOK switches if the command execution has been
acknowledged negatively.

BreakerTransNOK.tif

Fig. 11-11 Break_NOK transition

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11.2 Switching Sequences of the SoftPLC

Further steps

The steps which follow now for switching the remaining switching elements are structured similar to the circuit
breaker elements and only differ with regard to the use of the specific block instances for the corresponding
commands.

DisconnectorStep.tif

Fig. 11-12 Disco1_OFF step

DisconnectorTransOK.tif

Fig. 11-13 Disco1_OK transition

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11.2 Switching Sequences of the SoftPLC

Seq_OK and Seq_NOK steps

During the last two Seq_OK and Seq_NOK steps, the switching sequence start command is terminated
depending on the successful execution of the switching sequence.

This means that the entire switching sequence is executed successfully and the start command terminated
positively, even if the command for closing the Earth2_ON grounding conductor has been executed
successfully (Seq_OK).

SequenceStepOK.tif

Fig. 11-14 Seq_OK step

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11.2 Switching Sequences of the SoftPLC

The Seq_NOK step (which also serves as a jump target for all other error processing actions) is executed
accordingly if the last switching step (Close Earth2_ON grounding conductor) could not be executed
successfully.

The start command is terminated negatively.

SequenceStepNOK.tif

Fig. 11-15 Seq_NOK step

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11.2 Switching Sequences of the SoftPLC

Dummy1 and Dummy2 transitions

The two Dummy1 and Dummy2 transitions after the Seq_OK and Seg_NOK steps always switch over to an
Init initialization step.

These transitions are necessary in accordance with the IEC 61131-3 standard for sequential programming
languages, e.g. SFC (Sequential Function Chart). The transition variables are fixedly assigned with TRUE.

DummyTrans.tif

Fig. 11-16 Dummy1 and Dummy2 transitions

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11.3 Redundancy Switchover During Switching Sequences in SFC

11.3 Redundancy Switchover During Switching Sequences in SFC

11.3.1 Overview
A redundancy switchover could happen while a switching sequence is running in SFC.

In case of a switchover (caused by an error on device/interface/application/system level) there will be a nega-

tive termination on running commands with the additional cause AddC_DeviceStatus (116 / 0x74).

By appropriate evaluation of the AddCause, the switching sequence can be continued after a redundancy
switchover. If there is no evaluation of the AddCause in the logic of the switching sequence, the switching se-
quence will be terminated according to the logic.

Since the affected command had a negative termination, a command can be re-send directly after the
switchover.

The following section describes how you can react to a redundancy switchover during a switching sequence in
the SFC flow-chart.

11.3.2 Principle
The following logic steps can be added to the SFC flow-chart for any command processing:
• The command is split into its single components.
• The AddCause is checked in terms of an error:
− If the AddCause is not AddCDeviceStatus the "normal" error handling is performed.
− If the AddCause is AddCDeviceStatus a redundancy switchover happened.
• In case of a switchover, the switching sequence should at least wait for the feedback-monitoring time set
in the device. This is, because the device will not accept any other commands while the switching
command is running.
• When the timer has finished the command feedback is being checked.
• If the command feedback is OK the sequence can be proceeded.
• If the command feedback is not OK the customer has to react.
In the example below, the user tries to issue the command again.

The following sections show a flow-chart completed with this logic (Fig. 11-17) and subsequently the ST code
of the displayed function blocks.

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11.3 Redundancy Switchover During Switching Sequences in SFC

11.3.3 Solution in SFC

SwSeq.tif

Fig. 11-17 Redundancy Switchover During Switching Sequences in SFC

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11.3 Redundancy Switchover During Switching Sequences in SFC

Declarations Init

(* Evaluation of AddCause 116 *)

FB_CMDSTRUCT_CIRCUITBREAKER : PAS_CMD_STRUCT;

FB_SASS_CIRCUITBREAKER : PAS_SASS;

ADDCAUSE_CIRCUITBREAKER : BYTE;

COT_CIRCUITBREAKER_116 : BOOL;

(* Timer *)

FB_PAS_TIMERSW_DELAY : PAS_TIMERSW;

(* Feedback evaluation *)

FB_PAS_INDIC_FEEDBACK : PAS_INDIC;

FEEDBACK : BOOL;

Initialization Init

(* Evaluation of AddCause 116 *)

FB_CMDSTRUCT_CIRCUITBREAKER(IN:=FB_COMMCP_CIRCUITBREAKER.OUT);

FB_SASS_CIRCUITBREAKER(INPUT:=FB_CMDSTRUCT_CIRCUITBREAKER.CMD_TERM);

ADDCAUSE_CIRCUITBREAKER := 0;

COT_CIRCUITBREAKER_116 := FALSE;

(* Timer *)

(* Note: TTIME has to be greater than the Feedback Monitoring Time in the Device*)

FB_PAS_TIMERSW_DELAY(MODE:=3, START:=0, TTIME:=t#70s);

(* Feedback evaluation *)

FB_PAS_INDIC_FEEDBACK(EN:=FALSE, INDIC:=S_G7SA6311_Steuerung_Q0_1_Position);

FEEDBACK := FALSE;

Break_OFF:

FB_CRCOM_CIRCUITBREAKER(SEND:=TRUE);

FB_COMMCP_CIRCUITBREAKER();

(* Evaluation of AddCause 116 *)

FB_CMDSTRUCT_CIRCUITBREAKER(EN:=1, IN:=FB_COMMCP_CIRCUITBREAKER.OUT);

FB_SASS_CIRCUITBREAKER(EN:=1,INPUT:=FB_CMDSTRUCT_CIRCUITBREAKER.CMD_TERM);

ADDCAUSE_CIRCUITBREAKER:=FB_SASS_CIRCUITBREAKER.ADDCAUSE;

(* Reset Timer *)

FB_PAS_TIMERSW_DELAY(START:=0);

Break_OK:

Break_OK := FB_COMMCP_CIRCUITBREAKER.OK;

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11.3 Redundancy Switchover During Switching Sequences in SFC

Break_NOK:

Break_NOK := FB_COMMCP_CIRCUITBREAKER.ERR;

CheckAddC:

if ( ADDCAUSE_CIRCUITBREAKER = 116) then

COT_CIRCUITBREAKER_116 := true;

else

COT_CIRCUITBREAKER_116 := false;

end_if;

OtherAddC:

OtherAddC := NOT COT_CIRCUITBREAKER_116;

RedSwitch:

RedSwitch := COT_CIRCUITBREAKER_116;

Wait:

(* Start Timer *)

FB_PAS_TIMERSW_DELAY(START:=1);

(* ReInit Circuit Breaker Command*)

FB_CRCOM_CIRCUITBREAKER(SEND:=FALSE, CAUSE:=19, INITCAT:=4, VALTYPE:=13,

BO_VALUE:= FALSE);

FB_COMMCP_CIRCUITBREAKER(COMM:=FB_CRCOM_CIRCUITBREAKER.OUTPUT);

Timer_fin:

Timer_fin := FB_PAS_TIMERSW_DELAY.OUT;

CheckFB:

FB_PAS_INDIC_FEEDBACK(EN:=TRUE,
INDIC:=S_G7SA6311_Steuerung_Q0_1_Position);

if ( FB_PAS_INDIC_FEEDBACK.IOFF = true) then

FEEDBACK := true;

else

FEEDBACK := false;

end_if;

FB_OK:

FB_OK := FEEDBACK;

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11.3 Redundancy Switchover During Switching Sequences in SFC

FB_NOK:

FB_NOK := NOT FEEDBACK;

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Examples
11.4 Transformer Switching

11.4 Transformer Switching

The example below illustrates the implementation of a transformer switching initiated by the control center by
means of a command with setpoint input.

Method of operation

The switching is distributed to the individual sheets of the CFC chart according to the corresponding basic
function:
• Sheet 1 (see Figure 11-18):
Main chart: Command or indication preprocessing and control logic for the transformer tap
• Sheet 2 (see Figure 11-19):
Transformer tap command with value conversion: Chart-in-chart technology.
This is the TR_SET block of the main chart.
• Sheet 3 (see Figure 11-20):
Read in of the current transformer indication and comparison with the step value. Logic for evaluation
purposes. Chart-in-chart technology.
This is the TR_CHECK block of the main chart.
• Sheet 4 (see Figure 11-21):
Step-down of the transformer and evaluation of the process feedback:
Chart-in-chart technology.
This is the TR_DOWN block of the main chart.
• Sheet 5 (see Figure 11-22):
Step-up of the transformer and evaluation of the process feedback:
Chart-in-chart technology.
This is the TR_UP block of the main chart.

Sheet 1

On Sheet 1 of the main chart (see Figure 11-18), the set command for the transformer tap is transmitted to the
CFC logic (TR_SET block). The set command remains active until the process is terminated with a positive or
negative result. The setpoint value of the transformer tap is transmitted to the TR_CHECK block via the
TR_SET output (TR_SET block).

In the TR_CHECK block, the setpoint value is further processed for a value comparison with the actual value.
The resulting action is initiated.

The transformer tap is controlled via the PAS_MUXTEL and PAS_COMMCP blocks. The TR_DOWN and
TR_UP blocks trigger the transformer commands and TR_CHECK evaluates the new process feedback.

Sheet 2

The transformer tap command with value conversion is realized on Sheet 2 (see Figure 11-19).
The PAS_SELC block is used for this purpose. The set command is read in and the setpoint value is extracted
in this block. Afterwards, it is forwarded to the TR_CHECK block.

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11.4 Transformer Switching

Sheet 3

On Sheet 3 (see Figure 11-20), the current transformer indication is read in and the comparison with the
setpoint value is made. The sequence is started via the PAS_STATE block. The PAS_INDIC block reads out
the transformer indication, whilst the comparison is performed via the PAS_CMPTC block. The scheduled
value and the actual value are evaluated here. Depending on the tap position, additional blocks are activated
with the output signals (TR_DOWN, TR_UP) or the switching sequence is terminated.

Four switching conditions (transitions):

• TAP TOO SMALL
• TAP TOO LARGE
• TAP OK
• TAP NOT TOPICAL

A TRANS block is used for each switching condition.

The switching conditions are checked when the CHECK TAP status becomes active. Depending on the
switching condition met, the STEP UP status (on Sheet 5) or the STEP DOWN status (on Sheet 4) is
activated or the command is terminated:
• POSITIVE: SETPOINT = ACTUAL reached or
• NEGATIVE: ERROR DURING SWITCHING SEQUENCE.

Sheet 4

The logic for stepping down the transformer tap is performed on Sheet 4 (see Figure 11-21) with the
STEP DOWN state. The STATE block is used for this purpose.

Two switching conditions (transitions) exist in the STEP DOWN state: CMD OK and CMD_ERROR. A TRANS
block is used for each switching condition.

If the STEP DOWN state becomes active, the STATE block performs the action which has been previously
parameterized on the ACTION input: The transformer tap is controlled via the OUT output.
The switching conditions are checked afterwards. Depending on the switching condition met, the
CHECK STEP state (on Sheet 3) is activated.

Sheet 5

The logic for stepping up a transformer tap is implemented with the STEP UP state. The STATE block is used
for this purpose.

Two switching conditions (transitions) exist in the STEP UP state: CMD OK and CMD_ERROR.
A TRANS block is used for each switching condition.

When the STEP UP state becomes active, the STATE block performs the action parameterized on the
ACTION input: The transformer tap is controlled via the OUT output.
The switching conditions are checked afterwards. Depending on the switching condition met, the
CHECK STEP state (on Sheet 3) is activated.

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11.4 Transformer Switching

Trafo1.tif

Fig. 11-18 Command or indication preprocessing and control logic for the transformer tap

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11.4 Transformer Switching

TRAFO2.tif

Fig. 11-19 Transformer tap command with value conversion

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11.4 Transformer Switching

TRAFO3.tif

Fig. 11-20 Reading-in the current transformer indication and comparison with the step value;
logic for evaluation purposes

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11.4 Transformer Switching

TRAFO4.tif

Fig. 11-21 Step-down of the transformer tap (state)

TRAFO5.tif

Fig. 11-22 Step-up of the transformer tap (state)

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11.4 Transformer Switching

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A Appendix

Information provided in the Appendix

This appendix provides you with information on the following topics:

Contents

A.1 Components of the Process Data Structure 258

A.2 Diagnostic Information 266

A.3 Data Types of SICAM PAS Process Data Structure 268

A.4 Data Types According to IEC 61131 270

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Appendix
A.1 Components of the Process Data Structure

A.1 Components of the Process Data Structure

A.1.1 Cause

Table A-1

Group Value (dec. code) Meaning

Data 0 Irrelevant

1 Spontaneous

2 Cyclic, periodic

3 Initialized/default

Scan 8 General interrogation

9 Request

10 Metered-value request

Command execution 16 Command selection

17 Command selection positive

18 Command selection negative

19 Command execution

20 Command acceptance positive

21 Command acceptance negative

25 Cancelation

26 Cancelation positive

27 Cancelation negative

34 Command feedback

35 Command termination positive

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A.1 Components of the Process Data Structure

Table A-1

Group Value (dec. code) Meaning

36 Command termination negative

Organizational data 32 Organizational information

Bit 7 Direction bit

A.1.2 Initiator Category

Table A-2

Value (dec. code) Meaning

Bit 7 Test mode

0 Irrelevant

1 Local control (direct on device)

2 Local control (in station)

3 Remote control

4 Automatic (internal from SoftPLC)

10 DIGSI operation

20 IED internal, invalid

21 IED internal, blocked

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A.1 Components of the Process Data Structure

A.1.3 Additional Cause

Table A-3

Value (dec. code) Meaning

0 No error

32 Hardware error on energization of the

enable relay

33 Hardware error on command termina-

tion

34 Duration outside the permissible range

35 Errors during command output period

36 Error in the output time control

37 Hardware channel unknown

38 Maximum number of parallel commands

exceeded

39 Incorrect command type

40 Incorrect data type

41 Command substep sequence incorrect

64 Hardware check on output

65 Readback of the output command

results in incorrect value

66 Voltage to energize output relay missing

67 Release relay could not be terminated

68 Incorrect output value

80 Output switching current check; external

voltage present

81 Output switching current check; resis-

tance incorrect

82 Signaling relay does not exist

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A.1 Components of the Process Data Structure

Table A-3

Value (dec. code) Meaning

83 Command output voltage missing (sub-

station battery)

96 Interlock finding

97 Switchgear interlocking

98 Parameter error

99 Violation of switching authority

100 Command too old

101 No process output object or reserved

object

102 Output block set

103 Hardware error, module

104 Hardware error, I/O channel

105 Overload (no free resources)

112 Upper limit reached

113 Lower limit reached

114 Plausibility error

115 Necessary synchronization missing

116 Device state does not permit command

117 SETPOINT = ACTUAL

118 Monitoring time elapsed (timeout)

119 Acquisition block set

120 Chatter blocking active

121 1-of-n error (software)

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A.1 Components of the Process Data Structure

A.1.4 Status

Table A-4

Value Meaning

Bit 0 Process input block

Bit 1 External error

Bit 2 Not updated (not topical)

Bit 3 Substituted

Bit 4 Chatter blocking

Bit 5 Transmission blocking

Bit 6 Invalid

Bit 7 Overflow

A.1.5 Extended Status

Table A-5

Value Meaning

Bit 0 --

Bit 1 --

Bit 2 --

Bit 3 --

Bit 4 Clock time bit valid

Bit 5 Restore bit

Bit 6 Internal error bit

Bit 7 Counter reading

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A.1 Components of the Process Data Structure

A.1.6 Value Type

Table A-6

Value (dec. code) Meaning

1 Organizational message

2 Double-point indication

3 Single-point indication

4 Event indication

5 Transformer tap position feedback

6 Indication with value

7 Bit pattern indication, 8 bits

8 Bit pattern indication, 16 bits

9 Bit pattern indication, 24 bits

10 Bit pattern indication, 32 bits

11 Organizational acknowledgement

12 Metered values

13 Persistent switching command

14 Pulse switching command

15 Continuous control command

16 Short interruption switching command

17 Regulating step command

18 Setpoint command digital, 8 bits

19 Setpoint command digital, 16 bits

20 Setpoint command digital, 24 bits

21 Setpoint command digital, 32 bits

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A.1 Components of the Process Data Structure

Table A-6

Value (dec. code) Meaning

22 Analog setpoint value, floating point

24 Analog setpoint, fixed point

25 GI request

26 Re-store command

27 Organizational command

28 Measured value, floating point

30 Measured value, fixed point

31 Sequence

A.1.7 Type of TIme

Table A-7

Value (dec. code) Meaning

0 Time irrelevant

1 Absolute time in 1/10 ms since Jan. 1, 1990

A.1.8 Identification Number

Table A-8

Value (dec. code) Meaning

0 Identification number irrelevant

1 Defined implicitly by the information

2 Feedback identification, interrogation cycle

3 Fault number

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A.1 Components of the Process Data Structure

The identification number is no longer used in SICAM PAS.

A.1.9 Additional Information

Table A-9

Value (dec. code) Meaning

0 Additional information irrelevant

1 Defined implicitly by the information

2 Relative time with respect to an event in ms

3 Cause source (source address)

The additional information is no longer used in SICAM PAS.

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Appendix
A.2 Diagnostic Information

A.2 Diagnostic Information

The diagnostic byte (DIAG output) of the PAS firmware blocks visualizes diagnostic information and is used for
monitoring and analyzing the states of the PAS firmware blocks. This information can e. g. be used for fault
search.

The diagnostic byte (DIAG output) of the PAS_COMMCP and PAS_SELC command blocks and all blocks of
the following PAS firmware block groups can have the decimal values listed in Table A-10:
• Special blocks
• Indication blocks
• Arithmetical blocks
• Measured-value and metered-value blocks
• Comparison blocks
• Sequence blocks

Table A-10

Value (dec. code) Meaning

0 No error, normal process sequence

1 CPU (block not yet in RUN)

NOTE
PAS_FI block:
No indications in the input group
PAS_GROUPINDIC block:
No indication group on the input
PAS_DATA block:
Path incorrect / missing
PAS_UDIFF block:
The memory (value buffer) cannot be created
BusBarEmulation block:
Incorrect data type of the incoming indication(s)

2 Unconnected input which must be connected

NOTE
PAS_GROUPINDIC block:
The memory could not be allocated
PAS_DATA block:
Path incorrect / missing
PAS_UDIFF block:
The assigned times are not correct

3 Block deactivated via ENABLE input

NOTE
PAS_DATA block:
Error when writing to the file system

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A.2 Diagnostic Information

Table A-10

Value (dec. code) Meaning

4 Timer event

NOTE
PAS_GROUPINDIC block:
The index on the SELECT input is outside the permissible range
PAS_DATA block:
Error when writing from the file system
PAS_UDIFF block:
Assigned times have changed during operation (internal reset executed)

5 Output error

NOTE
PAS_DATA block:
Pointer to PAS information incorrect

6 No change (block idling)

7 Internal error (block-internal)

8 Input error (block inputs)

NOTE
PAS_FI block:
Incorrect data type in the input group
PAS_UDIFF block:
The RESET input is active or the measured value is invalid (internal reset executed)

9 Error in dynamic memory reservation

10 Value outside the valid range

11 Overflow (underflow)

12 Signal error (error status)

13 Division by zero

14 Incorrect parameter (block parameterization)

15 Bay blocking active

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Appendix
A.3 Data Types of SICAM PAS Process Data Structure

A.3 Data Types of SICAM PAS Process Data Structure

Table A-11

Designation (in hardware Protocol Type Automation Blocks

config) Table

Single-point indication SP PAS_CRI

PAS_ANDI
PAS_ORI
PAS_INVER
PAS_DELAYI
PAS_INDIC

Double-point indication DP PAS_TSP

PAS_CRI
PAS_ANDI
PAS_ORI
PAS_INVER
PAS_DELAYI
PAS_INDIC

Fleeting indication EVENT PAS_CRI

PAS_DELAYI

Bit pattern indication, BO PAS_CMPB

8 bits PAS_CMPBC

Bit pattern indication, BO PAS_CMPB

16 bits PAS_CMPBC

Bit pattern indication, BO PAS_CMPB

24 bits PAS_CMPBC

Bit pattern indication, BO PAS_CMPB

32 bits PAS_CMPBC

Step position indication ST PAS_CMPT

PAS_CMPTC

Metered value acquisition IT PAS_LIMU

Metered values PAS_LIML
PAS_ADD
PAS_SUB
PAS_MUL
PAS_DIV
PAS_CMP
PAS_NRP
PAS_ACQ
PAS_MULC
PAS_AVG

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A.3 Data Types of SICAM PAS Process Data Structure

Table A-11

Designation (in hardware Protocol Type Automation Blocks

config) Table

Measured/metered value ME_FL PAS_LIMU

(with event buffer entry) ME_I PAS_LIML
PAS_ADD
PAS_SUB
PAS_MUL
PAS_DIV
PAS_CMP
PAS_NRP
PAS_NLC
PAS_MULC
PAS_AVG

Setpoint digital output SE_D PAS_SELC,

PAS_COMMCP,
PAS_ACQ

Setpoint analog output SE_AI, PAS_SELC,

SE_AFL PAS_COMMCP

Digital output Persistent STATIC_SC PAS_SELC,

command STATIC_DC PAS_COMMCP

Pulse command, command PULSE_SC PAS_SELC,

output PULSE_DC PAS_COMMCP

Re-store command CI PAS_ACQ

Command - PAS_SELC
PAS_COMMCP

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Appendix
A.4 Data Types According to IEC 61131

A.4 Data Types According to IEC 61131

Table A-12

Keyword Name Value Range Size in Bit

BOOL Boolean FALSE, TRUE 8

SINT Short Integer -128 to +127 8

USINT Unsigned Short 0 to 255 8

Integer

INT Integer -32768 to +32767 16

DINT Double Integer -2.147.483.648 to +2.147.483.647 32

UINT Unsigned Integer 0 to 65535 16

UDINT Unsigned Double 0 to 4.294.967.295 32

Integer

REAL Real Number ± 3,4E ± 38 32

TIME Time Duration ± 24,85 d 32

STRING Character String 0 to 253 characters

BYTE Sequence of 8 Bit 8

WORD Sequence of 16 Bit 16

DWORD Sequence of 32 Bit 32

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Literature

/1/ SICAM PAS, Overview

E50417-X8976-C431-B1
/2/ SICAM PQS, Overview
E50417-X8976-C464-B1
/3/ SICAM PAS/PQS, Installation Manual
E50417-M8976-C432-B1
/4/ SICAM PAS/PQS, Configuration and Operation
E50417-P8976-C433-B2
/5/ SICAM SCC, Human Machine Interface SICAM SCC
E50417-H8976-C501-A4
/6/ SICAM Valpro, Measured/Metered Value Processing Utility SICAM Valpro
E50417-H8976-C479-A3
/7/ SICAM PAS, Automation Blocks
E50417-H8976-C436-A7
/8/ SICAM PAS/PQS, Security
E50417-H8976-C438-A7
/9/ SICAM PAS, Redundancy
E50417-H8976-C441-A9
/10/ SICAM PAS, Device Description
E50417-T8976-C437-A4
/11/ SICAM PAS, CFE Test and Diagnosis
E50417-H8976-C425-A1
/12/ SICAM Station Unit V2.40
E50417-H8976-C381-A5
/13/ SICAM PQS, Fault Locator
E50417-H8976-C421-A4
/14/ SICAM PQ Analyzer
E50417-H8976-C397-B2
/15/ SICAM PQ Analyzer, Incident Explorer
E50417-H8976-C465-B2
/16/ SICAM Diamond V4.0, Manual
E50417-H8976-C183-A8
/17/ SIMEAS R PAR, Parameterization Tool
E50417-H1076-C439-A7
/18/ SIMEAS R, Manual Digital Fault and Power Quality Recorder
E50417-B1076-C209-A2
/19/ SIMEAS R-PMU, Manual Digital Fault Recorder
E50417-H1076-C360-A2

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Literature

/20/ SIMEAS R-PMU, Maintenance Manual

E50417-H1074-C364-A2
/21/ SICAM Q80, Power Quality Recorder, System Manual
E50417-H1076-C420-A2
/22/ SICAM Q80, Power Quality Recorder, Operating Instruction
E50417-B1074-C419-A2
/23/ SIMATIC HMI WinCC V6 Basic Documentation
6AV6392-1XA06-0AB0
/24/ SIMATIC Security concept PCS 7 and WinCC - Basic document
A5E02128732-01

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Index

Numbers C
100 % absolute value CFC chart-in-chart technology
Analog value standardization 129 Compound block 53
100 % acquisition value CFC program
Analog value standardization 129 Setting the grid 31
Text blocks 29
Checking PAS Information 52
A
Command authorization 63
Additional information 265
Command blocks
Analog value processing
PAS_COMMCP 70
Analog value standardization 129
PAS_COMMCP_EX 74
Analog value standardization
PAS_CRCOM 63
100 % absolute value 129
PAS_SELC 77
100 % acquisition value 129
PAS_SELC_EX 80
Analog values 129
Command interlock 30
Bay and protection devices 129
Command output to the process 74
Measuring Ranges 129
Command Processing
Arithmetic 152
Commands to the process 62
Arithmetical blocks
Concept 62
Diagnosis 266
System-Internal Commands 62
PAS_ADD 153
Commands
PAS_ADDC 153
PD structure 46
PAS_DIV 154
Comparison blocks
PAS_MUL 154
Diagnosis 266
PAS_MULC 154
Comparison of measured or metered values 159
PAS_SUB 153
Compilation
PAS_SUBC 153
of the project 34
Automation block
Compiling project data 33
Connecting 28
Components
Inserting 26
PD structure 258
Selecting 26
Compound block
Setting parameters 26
CFC chart-in-chart technology 53
Automation with SoftPLC
Configuration
POUs 40
Inputs and outputs 51
Task 40
Connection of a group indication with PAS_ORI 29
Converting
B Double-Point to Single-Point Indications 91
Basic configuration steps 18 Creating
Bay and protection devices PAS information 164
Analog value standardization 129 Creating a new CFC program 23
Bit pattern comparison SICAM PAS SoftPLC UI 24
PAS_CMPB 112 Creating group indications 104, 123, 204
PAS_CMPBC 112 CTRL_MUX
BOOL 47 Function 215
BusBarEmulation Inputs 216
Function 213 Outputs 216
Inputs 214 PAS Standard Library 215
Outputs 214 Cyclic pulse mode
PAS Standard Library 213 PAS_TIMERSW 182
BYTE 48

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D Examples
Data Type Command derivation 68
Module 268 Command interlock 30
Protocol Type Table 268 Connection of a group indication with PAS_ORI 29
SICAM PAS PD structure 268 Issuing a switching command 73
Use 268 Maximum current input 151
Data types PAS_ACQ 138
BOOL 47 PAS_ANDI 88, 93, 100
BYTE 48 PAS_CMPB 117
DWORD 48 PAS_CMPT 111
INTEGER 49 PAS_COMMCP 121
REAL 49 PAS_CRI 88, 111, 117
SICAM PAS 50 PAS_DELAYI 103
STRING 50 PAS_INDIC 121
TIME 49 PAS_INVER 100
WORD 48 PAS_LIMU 144
Delay mode PAS_ORI 100
PAS_TIMERSW 183 PAS_TSP 93
Derive Persistent command 69
Commands 63 Soft PLC-internal command 32
Describing FB_SELC_PERS user block 178 Switchgear interlocking 121
Describing PersistentInteger user block 176 Switchgear interlocking Busbar feeder 230
Determining the maximum of measured or metered Switching sequences in the SoftPLC 233
values 148 Transformer switching 250
Determining the minimum of measured or metered
values 148 F
DIAG output 266 Fatal errors 52
Diagnostic information 266 FB_DATA
DWORD 48 Function 217
Inputs 218
E Outputs 218
Editor window with CFC program PAS Standard Library 217
Margin bars 28 Saving data persistently 217
Error processing FB_GROUPI
Error 52 Function 219
Fatal errors 52 Inputs 220
Warnings 52 Outputs 220
PAS Standard Library 219
FB_NGCGROUPI
Function 221
Inputs 222
Outputs 222
PAS Standard Library 221
Functions 152

G
Group indication
AND operations 95, 200
OR operations 95, 201

I
Identification number 264

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 Index

Indication blocks Measured or metered values

Diagnosis 266 Adding 153
PAS_ANDI 94, 95 Division 154
PAS_CMPB 112 Multiplication 154
PAS_CMPBC 112 Multiplication with constant 154
PAS_CMPT 106 Subtraction 153
PAS_CMPTC 106 Measured values and metered values
PAS_CRI 85, 89 PD structure 46
PAS_DELAYI 101 Measured-value / metered-value blocks
PAS_GROUPI 104, 123 Diagnosis 266
PAS_GROUPI_EX 204 PAS_ACQ 135
PAS_INDIC 118 PAS_ADD 152
PAS_INVER 98 PAS_ADDC 152
PAS_ORI 94, 95 PAS_AVG 145
PAS_TSP 91 PAS_CMP 159
Indication processing PAS_CMPC 159
Concept 84 PAS_DIV 152
Tasks 84 PAS_LIML 139
Indications PAS_LIMU 139
creating 85, 89 PAS_MUL 152
filtering 101 PAS_MULC 152
invert 98 PAS_NLC 130
logically connect 94 PAS_NRP 148
logically link 200 PAS_SUB 152
Initializing SICAM PAS firmware blocks PAS_SUBC 152
Using ST, SFC, STL 35 Metered values
Inputs and outputs Edit 135
Configuration 51 Multiplexer for input 174
Insert
Text blocks 29
N
INTEGER 49
Non-linear characteristic 130
Interlock of indication blocks 118
Stretched end range 131
Issuing a switching command 73
Stretched start range 131
with salient points 132
L Zero offset 132
Layout
FB_SELC_PERS User block 180
O
User block PersistentInteger 178
Online Connection 55
Limit value monitoring
Opening the SICAM PAS SoftPLC UI
PAS_LIML 139
Main.ST 22
PAS_LIMU 139
pasglob.POU 22
Optimizing the compilation
M Normal 34
Main.ST 22 Options 34
Margin bars Size only 34
Interconnection 54 Speed only 34
Margin bars in the editor window with CFC program
Functionality 28
P
Marker Command
PAS blocks
Soft PLC-internal command 32
Name 27
Marker command for the SoftPLC 77, 80
PAS firmware blocks
Maximum current input
Preassigning inputs 31
Example 151
Mean 145
Measured and metered value processing
Concept 128

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Index

PAS Standard Library PAS_CMP

BusBarEmulation 213 Comparison blocks 159
CTRL_MUX 215 Error processing 161
FB_DATA 217 Function 159
FB_GROUPI 219 Inputs 160
FB_NGCGROUPI 221 Outputs 161
SFC_RunCyclic 223 PAS_CMPB
SLCT_MUX 225 Bit pattern comparison 112
ToggleSP 227 Error processing 116
Using 212 Example 117
PAS_ACQ Function 113
Error processing 137 Inputs 114
Example 138 Outputs 114
Function 135 PAS_CMPBC
Inputs 136 Bit pattern comparison 112
Outputs 137 Error processing 116
Process metered value 135 Function 113
PAS_ADD Inputs 115
Addition of measured or metered values 153 Outputs 116
Error processing 158 PAS_CMPC
Function 153 Comparison blocks 159
Inputs 155 Error processing 161
Measured-value / metered-value 152 Function 159
Outputs 155 Inputs 160
PAS_ADDC Outputs 161
Addition of measured or metered values 153 PAS_CMPT
Error processing 158 Error processing 110
Function 153 Example 111
Inputs 157 Function 107
Measured-value / metered-value blocks 152 Inputs 108
Outputs 157 Outputs 108
PAS_ANDI Transformer tap comparison 106
AND operation for group indication 95 PAS_CMPTC
Error processing 97 Error processing 110
Example 88, 93, 100 Function 107
Function 95 Inputs 109
Inputs 96 Outputs 110
Logical link of indications 94 Transformer tap comparison 106
Outputs 96 PAS_COMMCP
PAS_ANDI_EX Command output to the process 70
AND operation for group indication 200 DIAG output 266
Error processing 203 Error processing 72
Function 200 Example 121
Inputs 202 Function 70
Logical linking of indications 200 Inputs 71
Outputs 202 Outputs 72
PAS_ANDI_EX blocks PAS_COMMCP_EX
PAS_ORI_EX 200 Command output to the process 74
PAS_AVG Error processing 76
Error processing 147 Function 74
Function 145 Inputs 75
Inputs 146 Outputs 76
Mean 145
Outputs 147
PAS_CMD_STRUCT 171
Example 173
Function 171
Inputs 172
Outputs 172
Splitting the command structure 171

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PAS_CRCOM PAS_INDIC
Command authorization 63 Error processing 120
Command derivation 68 Example 121
Create command 64 Function 118
Derive command 63, 64 Inputs 119
Examples 68 Interlocks 118
Function 63 Outputs 119
Inputs 65 PAS_INVER
Outputs 67 Error processing 100
Persistent command 69 Example 100
PAS_CRI Function 98
Creation of indications 85, 89 Inputs 99
Error processing 88 Inverting indications 98
Example 88, 111, 117 Outputs 99
Function 85, 89 PAS_LIML
Inputs 86 Error processing 143
Outputs 87 Function 140
PAS_DATA Inputs 142
Function 180 Limit value monitoring 139
Saving data persistently 180 Lower limit monitoring 140
PAS_DELAYI Outputs 143
Error processing 103 PAS_LIMU
Example 103 Error processing 143
Filter indications 101 Example 144
Function 101 Function 140
Inputs 102 Inputs 142
Outputs 103 Limit value monitoring 139
PAS_DIV Monitor upper limit value 140
Division of measured or metered values 154 Outputs 143
Error processing 158 PAS_MUL
Function 153 Error processing 158
Inputs 156, 158 Function 153
Measured-value / metered-value 152 Inputs 155
Outputs 156, 158 Measured-value / metered-value 152
PAS_FI Multiplication of measured or metered values 154
Inputs 90 Outputs 155
Outputs 90 PAS_MULC
PAS_GETTIME Error processing 158
Error processing 190 Function 153
Function 189 Inputs 157
Generating a time stamp 189 Measured-value / metered-value 152
Inputs 190 Multiplication of a measured or metered value with a
Outputs 190 constant 154
PAS_GROUPI Outputs 157
Creating group indications 104, 123 PAS_MUXTEL
Function 104, 123 Error processing 175
Inputs 105 Function 174
Outputs 105 Inputs 175
PAS_GROUPI_EX 204 Multiplexer for input 174
Creating group indications 204 Outputs 175
Function 204 PAS_NLC
Inputs 205 Error processing 134
Outputs 205 Function 130
PAS_GROUPINDIC Inputs 133
Inputs 124 Non-linear characteristic 130
Outputs 124 Outputs 134

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Index

PAS_NRP PAS_SUBC
Error processing 150 Error processing 158
Function 148 Function 153
Inputs 149 Inputs 156, 158
Outputs 150 Measured-value / metered-value 152
Slave pointer function 148 Outputs 156, 158
PAS_ORI Subtraction of measured or metered values 153
Error processing 97 PAS_TIMERSW
Example 100 Cyclic pulse mode 182
Function 95 Delay mode 183
Inputs 96 Error processing 185
Logical link of indications 94 Function 182
OR operation for group indication 95 Inputs 184
Outputs 96 Outputs 184
PAS_ORI_EX Start/ResetTimer mode 183
Error processing 203 Synchronized pulse mode 183
Function 200 Timer for software level 182
Inputs 202 PAS_TIMES
Logical linking of indications 200 Error processing 188
OR operation for group indication 201 Function 186
Outputs 202 Inputs 187
PAS_SASC Outputs 188
Creating PAS information 164 Time block 186
Error processing 167 PAS_TRANS 195
Function 164 Error processing 197
Inputs 165 Function 195
Outputs 167 Inputs 196
PAS_SASS Outputs 196
Error processing 170 Transition (e. g. Petrinetz model) 195
Function 168 PAS_TSP
Inputs 169 Converting double-point to single-point
Outputs 169 indications 91
Splitting PAS information 168 Error processing 93
PAS_SELC Example 93
DIAG output 266 Function 91
Error processing 79 Inputs 92
Function 77 Outputs 92
Inputs 78 PAS_UDIFF 206
Marker command for the SoftPLC 77 Control signals for circuit breakers 206
Outputs 79 Function 206
PAS_SELC_EX Inputs 208
Error processing 82 Outputs 209
Function 80 pasglob.POU 22
Inputs 81 PD component
Marker command for the SoftPLC 80 Additional cause 260
Outputs 82 Cause 258
PAS_STATE 192 Extended status 262
Error processing 194 Initiator category 259
Function 192 Status 262
Inputs 193 PD structure
Outputs 193 Additional information 265
State (e. g. Petrinetz model) 192 Commands 46
PAS_SUB Components 44, 258
Error processing 158 Filtering, breakdown 46
Function 153 Identification number 264
Inputs 156, 158 Indications 46
Measured-value / metered-value 152 Measured values and metered values 46
Outputs 156, 158 Pointers 46
Subtraction of measured or metered values 153 Process data structure 258
Type of time 264
Value type 263

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 Index

Pointer to PD structure 46 Split

POU 25 Commands 171
Preassigning inputs 31 PAS information 168
Prerequisite ST, SFC and STL
Using SFC 36 Programming 35
Process data structure Start/ResetTimer mode
PD structure 258 PAS_TIMERSW 183
Process data structure / PD structure 44 Starting the SoftPLC
Programming Prerequisites 19
ST, SGC and STL 35 Startup update
Programs System redundancy 57
Export 54 STRING 50
Import 54 Switchgear interlocking
Reuse 54 Example 121
Switchgear interlocking Busbar feeder
Example 230
R
Switching authority check 63
REAL 49
Switching sequences
RETAIN daten
Example 233
System redundancy 57
Synchronized pulse mode
PAS_TIMERSW 183
S System redundancy
Saving data persistently 180, 217 Behavior 57
Sequence blocks Optimal/non optimal parallel operation 57
Diagnosis 266 Persistent data (RETAIN Daten) 57
PAS_STATE 192 Startup update 57
PAS_TRANS 195
Setting the grid T
CFC program 31
Tag name 21
SFC_RunCyclic
Task
Function 223
Event-controlled 25
Inputs 224
Possible events 25
Outputs 224
Task sequence 25
PAS Standard Library 223
Text blocks
Showing/hiding unused block connections 31
Insert 29
SICAM PAS
TIME 49
Data types 50
Time Blocks
SICAM PAS UI - Configuration
PAS_GETTIME 189
Mapping values 20
PAS_TIMERSW 182
opening 20
PAS_TIMES 186
Slave pointer function 148
ToggleSP
SLCT_MUX
Function 227
Function 225
Inputs 227
Inputs 226
Outputs 227
Outputs 226
PAS Standard Library 227
PAS Standard Library 225
Transformer 250
Soft PLC-internal command 32
Transformer switching 250
Marker Command 32
Example 250
SoftPLC tag group 21
Method of operation 250
SoftPLC tag name 21
Transformer tap comparison
Special bocks
PAS_CMPT 106
Diagnosis 266
PAS_CMPTC 106
PAS_CMD_STRUCT 171
PAS_DATA 180
PAS_MUXTEL 174 U
PAS_SASC 164 User block FB_SELC_PERS Layout 180
PAS_SASS 168 User block PersistentInteger Layout 178
Specifying a PAS interface tag User-specific 200
Global tags 27 User-Specific Blocks 199
PAS_ANDI_EX 200
PAS_UDIFF 206

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Index

Using
PAS Standard Library 212
Using SFC
Prerequisite 36
Using ST, SFC, STL
Initializing SICAM PAS firmware blocks 35

V
Value type 263

W
Warnings 52
WORD 48
www.siemens.com/energy/poweracademy 3

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