Modicon X80

35013355 10/2019

Modicon X80
BMXEHC0200 Counting Module
User Manual
Original instructions

10/2019
35013355.14

www.schneider-electric.com
 The information provided in this documentation contains general descriptions and/or technical
characteristics of the performance of the products contained herein. This documentation is not
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instructions must be followed.
Failure to use Schneider Electric software or approved software with our hardware products may
result in injury, harm, or improper operating results.
Failure to observe this information can result in injury or equipment damage.
© 2019 Schneider Electric. All rights reserved.

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 Table of Contents

Safety Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
About the Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Part I Introduction to the Counting Function . . . . . . . . . . . . 15
Chapter 1 General Information on the Counting Function. . . . . . . . 17
General Information on Counting Functions . . . . . . . . . . . . . . . . . . . . 17
Chapter 2 Presentation of Counting Module . . . . . . . . . . . . . . . . . . 19
General Information about Counting Module. . . . . . . . . . . . . . . . . . . . 20
General Information about the Counting Module Operation . . . . . . . . 21
Presentation of the BMX EHC 0200 Counting Module . . . . . . . . . . . . 22
Chapter 3 Presentation of the Counting Module Operation. . . . . . . 23
Overview of BMX EHC 0200 Module Functionalities . . . . . . . . . . . . . 23
Part II Counting Module BMX EHC 0200 Hardware
Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Chapter 4 General Rules for Installing Counting Module
BMX EHC 0200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Physical Description of the Counting Module . . . . . . . . . . . . . . . . . . . 28
Fitting of Counting Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Fitting 10-Pin and 16-Pin Terminal Blocks to a BMX EHC 0200
Counting Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
How to Connect BMX EHC 0200 Module: Connecting 16-Pin and 10-
Pin Terminal Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Chapter 5 BMX EHC 0200 Counting Module Hardware
Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Standards and Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Characteristics for the BMX EHC 0200 Module and its Inputs and
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Display and Diagnostics of the BMX EHC 0200 Counting Module . . . 40
BMX EHC 0200 Module Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Shielding Connection Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Part III Counting Module BMX EHC 0200 Functionalities . . 53
Chapter 6 BMX EHC 0200 Counting Module Functionalities . . . . . 55
6.1 BMX EHC 0200 Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . 56
Input Interface Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Programmable Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

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 Output Block Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Synchronization, Homing, Enable, Reset to 0 and Capture Functions 69
Modulo Flag and Synchronization Flag . . . . . . . . . . . . . . . . . . . . . . . . 77
Sending Counting Events to the Application . . . . . . . . . . . . . . . . . . . . 79
6.2 BMX EHC 0200 Module Operation Modes . . . . . . . . . . . . . . . . . . . . . 82
BMX EHC 0200 Module Operation in Frequency Mode . . . . . . . . . . . 83
BMX EHC 0200 Module Operation in Event Counting Mode. . . . . . . . 84
BMX EHC 0200 Module Operation in Period Measuring Mode . . . . . . 86
BMX EHC 0200 Module Operation in Ratio Mode . . . . . . . . . . . . . . . . 89
BMX EHC 0200 Module Operation in One Shot Counter Mode . . . . . 92
BMX EHC 0200 Module Operation in Modulo Loop Counter Mode. . . 95
BMX EHC 0200 Module Operation in Free Large Counter Mode . . . . 99
BMX EHC 0200 Module Operation in Pulse Width Modulation Mode . 107
Part IV Counting Module BMX EHC 0200 Software
Implementation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Chapter 7 Software Implementation Methodology for
BMX EHC xxxx Counting Modules . . . . . . . . . . . . . . . . . . 111
Installation Methodology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Chapter 8 Accessing the Functional Screens of the BMX EHC xxxx
Counting Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Accessing the Functional Screens of the BMX EHC 0200 Counting
Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Description of the Counting Module Screens. . . . . . . . . . . . . . . . . . . . 116
Chapter 9 Configuration of the BMX EHC 0200 Counting Modules . 119
9.1 Configuration Screen for BMX EHC xxxx Counting Modules. . . . . . . . 120
Configuration Screen for BMX EHC 0200 Counting Modules in a
Modicon M340 Local Rack. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
9.2 Configuration of Modes for the BMX EHC 0200 Module . . . . . . . . . . . 123
Frequency Mode Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Event Counting Mode Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Period Measuring Mode Configuration. . . . . . . . . . . . . . . . . . . . . . . . . 128
Ratio Mode Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
One Shot Counter Mode Configuration . . . . . . . . . . . . . . . . . . . . . . . . 132
Modulo Loop Counter Mode Configuration . . . . . . . . . . . . . . . . . . . . . 134
Free Large Counter Mode Configuration . . . . . . . . . . . . . . . . . . . . . . . 137
Pulse Width Modulation Mode Configuration . . . . . . . . . . . . . . . . . . . . 140

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 Chapter 10 BMX EHC xxxx Counting Module Settings . . . . . . . . . . . 143
Adjust Screen for BMX EHC 0200 Counting Modules . . . . . . . . . . . . 144
Setting the Preset Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Setting the Calibration Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Modulo Adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Setting the Hysteresis Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Chapter 11 Debugging the BMX EHC 0200 Counting Modules . . . . 151
11.1 Debug Screen for BMX EHC xxxx Counting Modules . . . . . . . . . . . . 152
Debug Screen for BMX EHC xxxx Counting Modules . . . . . . . . . . . . 152
11.2 BMX EHC 0200 Module Debugging . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Frequency Mode Debugging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Event Counting Mode Debugging . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Period Measuring Mode Debugging . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Ratio Mode Debugging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
One Shot Counter Mode Debugging . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Modulo Loop Counter Mode Debugging . . . . . . . . . . . . . . . . . . . . . . . 161
Free Large Counter Mode Debugging. . . . . . . . . . . . . . . . . . . . . . . . . 163
Pulse Width Modulation Mode Debugging . . . . . . . . . . . . . . . . . . . . . 165
Chapter 12 Display of BMX EHC xxxx Counting Module Error . . . . . 167
Fault Display Screen for BMX EHC 0200 Counting Modules . . . . . . 168
Faults Diagnostics Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
List of Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Chapter 13 The Language Objects of the Counting Function . . . . . . 173
13.1 The Language Objects and IODDT of the Counting Function . . . . . . . 174
Introducing Language Objects for Application-Specific Counting . . . . 175
Implicit Exchange Language Objects Associated with the Application-
Specific Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Explicit Exchange Language Objects Associated with the Application-
Specific Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Management of Exchanges and Reports with Explicit Objects . . . . . . 179
13.2 Language Objects and IODDT Associated with the Counting Function
of the BMX EHC xxxx Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Details of Implicit Exchange Objects for the T_Unsigned_CPT_BMX
and T_Signed_CPT_BMX-types IODDTs . . . . . . . . . . . . . . . . . . . . . . 185
Details of the Explicit Exchange Objects for the T_CPT_BMX-type
IODDT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
13.3 The IODDT Type T_GEN_MOD Applicable to All Modules . . . . . . . . . 192
Details of the Language Objects of the IODDT of Type T_GEN_MOD 192

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 13.4 Device DDTs Associated with the Counting Function of the
BMX EHC xxxx Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Counter Device DDT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
MOD_FLT Byte Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Part V Quick Start: Example of Counting Module
Implementation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Chapter 14 Description of the Application . . . . . . . . . . . . . . . . . . . . . . 207
Overview of the Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Chapter 15 Installing the Application Using Control Expert. . . . . . . . . 209
15.1 Presentation of the Solution Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Technological Choices Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Process Using Control Expert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
15.2 Developing the Application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Creating the Project . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Configuration of the Counting Module . . . . . . . . . . . . . . . . . . . . . . . . . 215
Declaration of Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Creating the Program for Managing the Counter Module . . . . . . . . . . 220
Creating the Labelling Program in ST . . . . . . . . . . . . . . . . . . . . . . . . . 222
Creating the I/O Event Section in ST . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Creating a Program in LD for Application Execution . . . . . . . . . . . . . . 225
Creating an Animation Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Creating the Operator Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Chapter 16 Starting the Application . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Execution of Application in Standard Mode . . . . . . . . . . . . . . . . . . . . . 231
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

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 Safety Information

Important Information

NOTICE
Read these instructions carefully, and look at the equipment to become familiar with the device
before trying to install, operate, service, or maintain it. The following special messages may appear
throughout this documentation or on the equipment to warn of potential hazards or to call attention
to information that clarifies or simplifies a procedure.

35013355 10/2019 7
PLEASE NOTE
Electrical equipment should be installed, operated, serviced, and maintained only by qualified
personnel. No responsibility is assumed by Schneider Electric for any consequences arising out of
the use of this material.
A qualified person is one who has skills and knowledge related to the construction and operation
of electrical equipment and its installation, and has received safety training to recognize and avoid
the hazards involved.

BEFORE YOU BEGIN

Do not use this product on machinery lacking effective point-of-operation guarding. Lack of
effective point-of-operation guarding on a machine can result in serious injury to the operator of
that machine.

WARNING
UNGUARDED EQUIPMENT
 Do not use this software and related automation equipment on equipment which does not have
point-of-operation protection.
 Do not reach into machinery during operation.
Failure to follow these instructions can result in death, serious injury, or equipment damage.

This automation equipment and related software is used to control a variety of industrial processes.
The type or model of automation equipment suitable for each application will vary depending on
factors such as the control function required, degree of protection required, production methods,
unusual conditions, government regulations, etc. In some applications, more than one processor
may be required, as when backup redundancy is needed.
Only you, the user, machine builder or system integrator can be aware of all the conditions and
factors present during setup, operation, and maintenance of the machine and, therefore, can
determine the automation equipment and the related safeties and interlocks which can be properly
used. When selecting automation and control equipment and related software for a particular
application, you should refer to the applicable local and national standards and regulations. The
National Safety Council's Accident Prevention Manual (nationally recognized in the United States
of America) also provides much useful information.
In some applications, such as packaging machinery, additional operator protection such as point-
of-operation guarding must be provided. This is necessary if the operator's hands and other parts
of the body are free to enter the pinch points or other hazardous areas and serious injury can occur.
Software products alone cannot protect an operator from injury. For this reason the software
cannot be substituted for or take the place of point-of-operation protection.

8 35013355 10/2019
 Ensure that appropriate safeties and mechanical/electrical interlocks related to point-of-operation
protection have been installed and are operational before placing the equipment into service. All
interlocks and safeties related to point-of-operation protection must be coordinated with the related
automation equipment and software programming.
NOTE: Coordination of safeties and mechanical/electrical interlocks for point-of-operation
protection is outside the scope of the Function Block Library, System User Guide, or other
implementation referenced in this documentation.

START-UP AND TEST

Before using electrical control and automation equipment for regular operation after installation,
the system should be given a start-up test by qualified personnel to verify correct operation of the
equipment. It is important that arrangements for such a check be made and that enough time is
allowed to perform complete and satisfactory testing.

WARNING
EQUIPMENT OPERATION HAZARD
 Verify that all installation and set up procedures have been completed.
 Before operational tests are performed, remove all blocks or other temporary holding means
used for shipment from all component devices.
 Remove tools, meters, and debris from equipment.
Failure to follow these instructions can result in death, serious injury, or equipment damage.

Follow all start-up tests recommended in the equipment documentation. Store all equipment
documentation for future references.
Software testing must be done in both simulated and real environments.
Verify that the completed system is free from all short circuits and temporary grounds that are not
installed according to local regulations (according to the National Electrical Code in the U.S.A, for
instance). If high-potential voltage testing is necessary, follow recommendations in equipment
documentation to prevent accidental equipment damage.
Before energizing equipment:
 Remove tools, meters, and debris from equipment.
 Close the equipment enclosure door.
 Remove all temporary grounds from incoming power lines.
 Perform all start-up tests recommended by the manufacturer.

35013355 10/2019 9
OPERATION AND ADJUSTMENTS
The following precautions are from the NEMA Standards Publication ICS 7.1-1995 (English
version prevails):
 Regardless of the care exercised in the design and manufacture of equipment or in the selection
and ratings of components, there are hazards that can be encountered if such equipment is
improperly operated.
 It is sometimes possible to misadjust the equipment and thus produce unsatisfactory or unsafe
operation. Always use the manufacturer’s instructions as a guide for functional adjustments.
Personnel who have access to these adjustments should be familiar with the equipment
manufacturer’s instructions and the machinery used with the electrical equipment.
 Only those operational adjustments actually required by the operator should be accessible to
the operator. Access to other controls should be restricted to prevent unauthorized changes in
operating characteristics.

10 35013355 10/2019
 About the Book

At a Glance

Document Scope
This manual describes the hardware and software implementation of the Modicon X80 counting
module BMXEHC0200.

Validity Note
This documentation is valid for EcoStruxure™ Control Expert 14.1 or later.
The technical characteristics of the devices described in the present document also appear online.
To access the information online:

Step Action
1 Go to the Schneider Electric home page www.schneider-electric.com.
2 In the Search box type the reference of a product or the name of a product range.
 Do not include blank spaces in the reference or product range.
 To get information on grouping similar modules, use asterisks (*).

3 If you entered a reference, go to the Product Datasheets search results and click on the
reference that interests you.
If you entered the name of a product range, go to the Product Ranges search results and click
on the product range that interests you.
4 If more than one reference appears in the Products search results, click on the reference that
interests you.
5 Depending on the size of your screen, you may need to scroll down to see the datasheet.
6 To save or print a datasheet as a .pdf file, click Download XXX product datasheet.

The characteristics that are presented in the present document should be the same as those
characteristics that appear online. In line with our policy of constant improvement, we may revise
content over time to improve clarity and accuracy. If you see a difference between the document
and online information, use the online information as your reference.

35013355 10/2019 11
Related Documents

Title of documentation Reference number

Electrical installation guide EIGED306001EN (English)
Modicon M580, M340, and X80 I/O Platforms, Standards and EIO0000002726 (English),
Certifications EIO0000002727 (French),
EIO0000002728 (German),
EIO0000002730 (Italian),
EIO0000002729 (Spanish),
EIO0000002731 (Chinese)
EcoStruxure™ Control Expert, Program Languages and Structure, 35006144 (English),
Reference Manual 35006145 (French),
35006146 (German),
35013361 (Italian),
35006147 (Spanish),
35013362 (Chinese)
EcoStruxure™ Control Expert, Operating Modes 33003101 (English),
33003102 (French),
33003103 (German),
33003104 (Spanish),
33003696 (Italian),
33003697 (Chinese)
EcoStruxure™ Control Expert, I/O Management, Block Library 33002531 (English),
33002532 (French),
33002533 (German),
33003684 (Italian),
33002534 (Spanish),
33003685 (Chinese)
EcoStruxure™ Control Expert, Communication, Block Library 33002527 (English),
33002528 (French),
33002529 (German),
33003682 (Italian),
33002530 (Spanish),
33003683 (Chinese)

You can download these technical publications and other technical information from our website
at www.schneider-electric.com/en/download.

12 35013355 10/2019
Product Related Information

WARNING
UNINTENDED EQUIPMENT OPERATION
The application of this product requires expertise in the design and programming of control
systems. Only persons with such expertise should be allowed to program, install, alter, and apply
this product.
Follow all local and national safety codes and standards.
Failure to follow these instructions can result in death, serious injury, or equipment damage.

35013355 10/2019 13
14 35013355 10/2019
 Modicon X80
Overview
35013355 10/2019

Part I
Introduction to the Counting Function

Introduction to the Counting Function

Subject of this Part

This part provides a general introduction to the counting function and the operating principles of
the BMX EHC 0200.

What Is in This Part?

This part contains the following chapters:
Chapter Chapter Name Page
1 General Information on the Counting Function 17
2 Presentation of Counting Module 19
3 Presentation of the Counting Module Operation 23

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Overview

16 35013355 10/2019
 Modicon X80
Counting Functions
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Chapter 1
General Information on the Counting Function

General Information on the Counting Function

General Information on Counting Functions

At a Glance
The counting function enables fast counting using couplers, Control Expert screens and
specialized language objects. The general operation of expert modules also known as couplers is
described in the section Presentation of the Counting Module Operation BMX EHC 0200.
In order to implement the counting, it is necessary to define the physical context in which it is to be
executed (rack, supply, processor, modules etc.) and to ensure the software implementation
(see page 109).
This second aspect is performed from the different Control Expert editors:
 in offline mode
 in online mode

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Counting Functions

18 35013355 10/2019
 Modicon X80
Counting Module
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Chapter 2
Presentation of Counting Module

Presentation of Counting Module

Subject of this Chapter

This chapter deals with the Modicon X80 counting module BMX EHC 0200.

What Is in This Chapter?

This chapter contains the following topics:
Topic Page
General Information about Counting Module 20
General Information about the Counting Module Operation 21
Presentation of the BMX EHC 0200 Counting Module 22

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Counting Module

General Information about Counting Module

Introduction
Counting module is standard format module that enable pulses from a sensor to be counted at a
maximum frequency of 60 KHz (BMX EHC 0200).
The BMX EHC 0200 module has 2 channels.

Sensors Used
The sensors used on each channel may be:
 24 VDC two-wire proximity sensors
 Incremental signal encoders with 10/30 VDC output and push-pull outputs.

Illustration
3
1

1 Incremental encoder
2 Proximity sensors
3 Counting module BMX EHC 0200

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 Counting Module

General Information about the Counting Module Operation

Introduction
The BMX EHC 0200 module have:
 Counting-related functions (comparison, capture, homing, reset to 0)
 Event generation functions designed for the application program
 Outputs for actuator use (contacts, alarms, relays)

Characteristics
The main characteristics of BMX EHC 0200 module are as follows.

Application Number of Number of Number of Maximum

channels per physical inputs per physical outputs frequency
module channel per channel
 Counting 2 6 2 60 KHz
 Downcounting
 Up/Down counting
 Measurement
 Frequency meter
 Frequency generator
 Axis monitoring

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Counting Module

Presentation of the BMX EHC 0200 Counting Module

At a Glance
The BMX EHC 0200 counting module enables the counting or downcounting of pulses to be
performed. It has the following functions:
 Enable
 Capture
 Comparison
 Homing or reset to 0
 2 physical outputs

Structure of a counter channel

The following illustration shows the overall structure of a counter channel:

A COUNTER
B
2 Thresholds
2
Comparator
32 bits Reflex
Sync Counter/TH1 Output
home 2 Counter/TH2
capture
Ref record/TH1
register
record/TH2
En

Capt

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 Modicon X80
Counting Module
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Chapter 3
Presentation of the Counting Module Operation

Presentation of the Counting Module Operation

Overview of BMX EHC 0200 Module Functionalities

At a Glance
This part presents the different types of user applications for the BMX EHC 0200 module.

Measurement
The following table presents the measurement functionality for the BMX EHC 0200 module:

User application type Mode

Speed measurement/stream measurement Frequency
Random events monitoring Event counting
Pulse evaluation/Speed control Period measuring
Flow control Ratio

Counting
The following table presents the counting functionality for the BMX EHC 0200 module:

User application type Mode

Grouping One shot counter
Level 1 packaging/labeling Modulo loop counter
Level 2 packaging/labeling Free large counter
Accumulator Free large counter
Axis control Free large counter

NOTE: In case of a user application such as level 1 packaging/labeling, the machine makes
constant spacing between parts. In case of a user application such as level 2 packaging/labeling,
the counting module learns the incoming edge of each part.

Frequency Generator
The following table presents the frequency generator functionality for the BMX EHC 0200 module:

User application type Mode

Input frequency device Pulse width modulation

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Counting Module

Interface
The BMX EHC 0200 module may be interfaced with the following components:
 mechanical switch
 24 VDC two-wire proximity sensor
 24 VDC three-wire proximity sensor
 10/30 VDC encoder with push-pull outputs

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Part II
Counting Module BMX EHC 0200 Hardware Implementation

Counting Module BMX EHC 0200 Hardware Implementation

Subject of this Part

This part presents the hardware implementation of the BMX EHC 0200 counting module.

What Is in This Part?

This part contains the following chapters:
Chapter Chapter Name Page
4 General Rules for Installing Counting Module BMX EHC 0200 27
5 BMX EHC 0200 Counting Module Hardware Implementation 35

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Counting Module BMX EHC 0200 Hardware Implementation

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Counting Module BMX EHC 0200: General Rules for Installation
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Chapter 4
General Rules for Installing Counting Module BMX EHC 0200

General Rules for Installing Counting Module BMX EHC 0200

Subject of this Chapter

This chapter presents the general rules for installing counting module BMX EHC 0200.

What Is in This Chapter?

This chapter contains the following topics:
Topic Page
Physical Description of the Counting Module 28
Fitting of Counting Modules 30
Fitting 10-Pin and 16-Pin Terminal Blocks to a BMX EHC 0200 Counting Module 32
How to Connect BMX EHC 0200 Module: Connecting 16-Pin and 10-Pin Terminal Blocks 33

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Counting Module BMX EHC 0200: General Rules for Installation

Physical Description of the Counting Module

Illustration
The figure below present the counting module BMX EHC 0200 :

Physical Elements of the Modules

The table below presents the elements of the counting module BMX EHC 0200:

Number Description
1 Module state LEDs:
 State LEDs at module level
 State LEDs at channel level

2 16-pin connector to connect the counter 0 sensors

3 16-pin connector to connect the counter 1 sensors
4 10-pin connector to connect:
 Auxiliary outputs
 Sensor power supplies

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Accessories
The BMX EHC 0200 module requires the use of the following accessories:
 Two 16-pin terminal blocks
 One 10-pin terminal block
 One BMXXSP•••• shielding connection kit (see page 50)
NOTE: The two 16-pin connectors and the 10-pin connector are available under the reference
BMX XTS HSC 20.

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Counting Module BMX EHC 0200: General Rules for Installation

Fitting of Counting Modules

At a Glance
The counting modules are powered by the rack bus. The modules may be handled without turning
off power supply to the rack, without damage or disturbance to the PLC.
Fitting operations (installation, assembly, and disassembly) are described below.

Installation Precautions
The counting modules may be installed in any of the positions in the rack except for the first two
(marked PS and 00) which are reserved for the rack power supply module (BMX CPS ••••) and the
processor (BMX P34 ••••) respectively. Power is supplied by the bus at the bottom of the rack
(3.3 V and 24 V).
Before installing a module, you must take off the protective cap from the module connector located
on the rack.

DANGER
HAZARD OF ELECTRIC SHOCK
 Turn off all power to sensor and pre-actuator devices before connection of disconnection of
the terminal block.
 Remove the terminal block before plugging / unplugging the module on the rack.
Failure to follow these instructions will result in death or serious injury.

Installation
The diagram below shows counting module BMX EHC 0200 mounted on the rack:

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 Counting Module BMX EHC 0200: General Rules for Installation

The following table describes the different elements which make up the assembly below:

Number Description
1 BMX EHC 0200 counting module
2 Standard rack

Installing the Module on the Rack

The following table shows the procedure for mounting the counting module in the rack:

Step Action Illustration

1 Position the locating pins situated at Steps 1 and 2
the rear of the module (on the bottom
part) in the corresponding slots in the
rack.
NOTE: Before positioning the pins,
make sure you have removed the
protective cover.
2 Swivel the module towards the top of
the rack so that the module sits flush
with the back of the rack. It is now set
in position.

3 Tighten the mounting screw to ensure Step 3

that the module is held in place on the
rack.
Tightening torque: 0.4...1.5 N•m
(0.30...1.10 lbf-ft)

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Fitting 10-Pin and 16-Pin Terminal Blocks to a BMX EHC 0200 Counting Module

At a Glance
BMX EHC 0200 counting modules with 10-pin and 16-pin terminal block connections require
terminal blocks to be connected to the module. The fitting operations (assembly and disassembly)
are described below.

Installing the 10-Pin and 16-Pin Terminal Blocks

DANGER
HAZARD OF ELECTRIC SHOCK
Turn off all power to sensor and pre-actuator devices before connection or disconnection of the
terminal block.
Failure to follow these instructions will result in death or serious injury.

If two 16-pin terminal blocks are used, each can be plugged into the middle or the top connector
of the module. Therefore, despite the indicators on the terminal blocks and module, it is possible
to invert the two terminal blocks and thus create incorrect wiring.

CAUTION
UNEXPECTED BEHAVIOR OF APPLICATION
Do careful tests on the wiring before any connection of material (sensors, actuators) and before
any application tests.
Failure to follow these instructions can result in injury or equipment damage.

The following table shows the procedure for assembling the 10-pin and 16-pin terminal blocks onto
a BMX EHC 0200 counting module:

Step Action
1 Plug the 10-pin terminal block into the bottom connector of the module.
2 Plug the 16-pin terminal block into the middle connector of the module if it is
used.
3 Plug the 16-pin terminal block into the top connector of the module if it is used.

NOTE: The three module connectors have indicators which show the proper direction to use for
terminal block installation.

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How to Connect BMX EHC 0200 Module: Connecting 16-Pin and 10-Pin Terminal
Blocks

At a Glance
The BMX EHC 0200 counting module uses the following terminal blocks:
 Two 16-pin terminal blocks for the inputs
 One 10-pin terminal block for supplies outputs

Description of the 10 and 16 Pin Terminal Blocks

The following table shows the characteristics of the BMX EHC 0200 terminal blocks:

Characteristic Available
Type of terminal block Spring terminal blocks
Number of wires accommodated 1
Wire gauge Minimum AWG 20 (0.5 mm2)
accommodated
Maximum AWG 18 (1 mm2)
Wiring constraints To insert and remove wires from the connectors, use a flat-tipped
screwdriver with a 2.5 mm wide and 0.4 mm thick blade. With the
screwdriver, push the flexible plate down on the outside (the side
closest to the corresponding receptacle) to open the round receptacle.
A screwing (rotating) or bending motion is not required.

DANGER
HAZARD OF ELECTRIC SHOCK
Turn off all power to sensor and pre-actuator devices before connection or disconnection of the
terminal block.
Failure to follow these instructions will result in death or serious injury.

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BMX EHC 0200
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Chapter 5
BMX EHC 0200 Counting Module Hardware Implementation

BMX EHC 0200 Counting Module Hardware Implementation

Subject of this Chapter

This chapter deals with the hardware characteristics of the BMX EHC 0200 module.

What Is in This Chapter?

This chapter contains the following topics:
Topic Page
Standards and Certifications 36
Characteristics for the BMX EHC 0200 Module and its Inputs and Outputs 37
Display and Diagnostics of the BMX EHC 0200 Counting Module 40
BMX EHC 0200 Module Wiring 42
Shielding Connection Kit 50

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BMX EHC 0200

Standards and Certifications

Download
Click the link that corresponds to your preferred language to download standards and certifications
(PDF format) that apply to the modules in this product line:

Title Languages
Modicon M580, M340, and X80 I/O Platforms,  English: EIO0000002726
Standards and Certifications  French: EIO0000002727
 German: EIO0000002728
 Italian: EIO0000002730
 Spanish: EIO0000002729
 Chinese: EIO0000002731

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Characteristics for the BMX EHC 0200 Module and its Inputs and Outputs

Ruggedized Version
The BMX EHC 0200H (hardened) equipment is the ruggedized version of the BMX EHC 0200
(standard) equipment. It can be used at extended temperatures and in harsh chemical
environments.
For more information, refer to chapter Installation in More Severe Environments (see Modicon
M580, M340, and X80 I/O Platforms, Standards and Certifications).

Altitude Operating Conditions

The characteristics in the table below apply to the modules BMX EHC 0200 and BMX EHC 0200H
for use at altitude up to 2000 m (6560 ft). When the modules operate above 2000 m (6560 ft), apply
additional derating.
For detailed information, refer to chapter Operating and Storage Conditions (see Modicon M580,
M340, and X80 I/O Platforms, Standards and Certifications).

General Characteristics
This table presents the general characteristics for the BMX EHC 0200 and BMX EHC 0200H
modules:

Module type 2 counting channels

Operating temperature BMX EHC 0200 0...60 ºC (32...140 ºF)
BMX EHC 0200H -25...70 ºC (-13...158 ºF)
Maximum frequency at counting inputs 60 kHz
Number of inputs/outputs per Inputs 6 Type three 24 VDC inputs
counting channel
Outputs Two 24 VDC outputs
Power Supply Sensor supply voltage 19.2...30 VDC
Module consumption Does not take into account sensors or encoder
consumption
 All inputs OFF: Typical: 15 mA
 All inputs ON: Typical: 75 mA

Actuator supply 500 mA maximum per output

current 2 A per module
Power distribution to sensors Yes with short-circuit and overload protection -
typical 300 mA (short-circuit limited to 2.5 A)
Hot replacement Yes, under the following conditions:
The module may be removed and reinserted into its
location while the rack is switched on, but the
counter may have to be revalidated when it is
reinserted into its base.

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Dimensions Width Module only 32 mm

On the rack 32 mm
Height Module only 103.76 mm
On the rack 103.76 mm
Depth Module only 92 mm
On the rack 104.5 mm
Encoder compliance 10...30 VDC incremental encoder model with push-
pull at outputs
Insulation voltage of the ground to the bus 1500 V RMS for 1 min
Rack 24 V supply bus Current for the 24 V Typical: 40 mA
bus
Rack 3 V supply bus Current for the 3 V bus Typical: 200 mA
Module Cycle Time 1 ms

WARNING
OVERHEATING MODULE
Do not operate the BMX EHC 0200H at 70°C (158°F) if the sensor power supply is greater than
26.4 V or less than 21.1 V.
Failure to follow these instructions can result in death, serious injury, or equipment damage.

Input Characteristics
This table presents the general characteristics of the input channels for the module:

Number of inputs per channel Six 24 VDC inputs

Inputs: Voltage 30 VDC maximum
IN A, IN B, IN SYNC, IN EN, IN
At state 1 Voltage 11 VDC... 30 VDC
REF, IN CAP
Current 5 mA (up to 30 VDC)
At state 0 Voltage < 5 VDC
Current < 1.5 mA
Current at 11 VDC > 2 mA

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Characteristics of Outputs
This table presents the general characteristics of the output channels for the module:

Number of outputs per channel 2

Type source 24 VDC 0.5 A
Voltage 19.2...30 VCC
Minimum load current None
Maximum load current Each point 0.5 A
Per module 2A
Leakage current at state 0 0.1 mA maximum
Voltage drop at state 1 3 VDC maximum
Output current short-circuit Each point 1.5 A maximum
Maximum load capacity 50 μF
Short-circuit and overload Channel protection
Polarity for each output channel By default Normal logic on both channels
User Reverse logic for one or several channels
configuration
Maximum inductive load The inductive load is calculated using the
following formula:

The formula above uses the following

parameters:
 L: load inductance in Henry
 I: load current in Amperes
 F: switching frequency in Hertz

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Display and Diagnostics of the BMX EHC 0200 Counting Module

At a Glance
The BMX EHC 0200 counting module has LEDs that enable the status of the module to be viewed:
 Module state LEDs: RUN, ERR, I/O
 State LEDs for inputs/outputs of each channel: IA, IB, IS, IE, IP, IC, Q0 and Q1.

Illustration
The following drawing shows the display screen of the BMX EHC 0200 module:

Fault Diagnostics
The following table presents the various module states according to the LED states:

Module status LED indicators

ERR RUN IO IA IB IS IE IP IC Q0 Q1
The module is faulty or switched off
The module has a fault
The module is not configured
The module has lost
communication
The sensors have a supply fault
The actuators have a supply fault

Short circuit on output Q0

Short circuit on output Q1

The channels are operational

The voltage is present at output Q0

The voltage is present at output Q1

The voltage is present at input
IN_A
The voltage is present at input
IN_B

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 BMX EHC 0200

The voltage is present at input

IN_SYNC
The voltage is present at input
IN_EN
The voltage is present at input
IN_REF
The voltage is present at input
IN_CAP

Legend
LED on
LED off

LED flashing slowly

LED flashing fast
An empty cell indicates that the state of the LED(s) is not taken into account

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BMX EHC 0200 Module Wiring

At a Glance
The BMX EHC 0200 counting module uses the following:
 Two 16-pin connectors for the inputs
 One 10-pin connector for the outputs

DANGER
HAZARD OF ELECTRIC SHOCK
 Turn off all power to sensor and pre-actuator devices before connection or disconnection of
the terminal block.
 Remove the terminal block before plugging / unplugging the module on the rack.
Failure to follow these instructions will result in death or serious injury.

NOTE: The two 16-pin connectors and the 10-pin connector are sold separately and are available
in the BMX XTS HSC 20 connection kit.

Field Sensors
The module has type 3 of IEC 61131 inputs that support signals from mechanical switching
equipment such as:
 Contact relays
 Push-buttons
 Limit switch sensors
 Switches with 2 or 3 wires

The equipment must have the following characteristics:

 Voltage drop less than 8 V
 Minimum operating current less than or equal to 2 mA
 Maximum current in blocked state less than or equal to 1.5 mA

The module complies with most encoders that have a supply of 10...30 V and push-pull outputs.
NOTE: The module 24 V supply for sensors has thermal and short-circuit protection.

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Assignment of the 16-Pin Connector

The figure below shows the physical location of the pin numbers for the 16-pin connector:

The symbol and description of each pin are described in the following table:

Pin number Symbol Description

1, 2, 7, 8 24V_SEN 24 VDC output for sensors supply
5, 6, 13, 14 GND_SEN 24 VDC output for sensors supply
15, 16 FE Functional earth
3 IN_A Input A
4 IN_SYNC Synchronization input
9 IN_B Input B
10 IN_EN Enable input selected
11 IN_REF Homing input
12 IN_CAP Capture input

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Sensor Connections
The example below shows sensors with applied to inputs IN_A and IN_B and equipment with
applied to inputs IN_EN and IN_SYNC:

1 IN_A input
2 IN_B input
3 IN_SYNC input (synchronization input)
4 IN_EN input (enable input)

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Encoder Connection
The example below shows an incremental encoder used for axis control and the three auxiliary
inputs used especially for the 32-bit counter mode:

1 Encoder (inputs A, B and Z)

2 IN_REF input (homing input)
3 IN_EN input (enable input)
4 IN_CAP input (capture input)

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Connecting Outputs and Output Supplies

The figure below shows the connection of supplies and actuators to the 10-pin connector:

1 24 V supply for actuators

2 24 V supply for sensors
3 Actuator for the Q0 output of counting channel 0
4 Actuator for the Q1 output of counting channel 0
5 Actuator for the Q0 output of counting channel 1
6 Actuator for the Q1 output of counting channel 1

Field Actuators
The Q0 and Q1 outputs are limited by a maximum current of 0.5 A.
NOTE: The Q0 and Q1 outputs have a thermal protection as well as short-circuit protection.

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Assignment of the 10-Pin Connector

The figure below shows the physical location of the pin numbers for the 10-pin connector:

The symbol and description of each pin are described in the table below:

Pin number Symbol Description

1 24V_IN 24 VDC input for sensors supply
2 GND_IN 0 VDC input for sensors supply
5 Q0-1 Q1 output for counting channel 0
6 Q0-0 Q0 output for counting channel 0
7 Q1-1 Q1 output for counting channel 1
8 Q1-0 Q0 output for counting channel 1
9 24V_OUT 24 VDC input for actuators supply
10 GND_OUT 0 VDC input for actuators supply

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Safety Instructions
Electromagnetic perturbations may cause the application to operate in an unexpected manner.
Follow all local and national safety codes and standards.

DANGER
HAZARD OF ELECTRIC SHOCK
If you cannot prove that the end of a shielded cable is connected to the local ground, the cable
must be considered as dangerous and personal protective equipment (PPE) must be worn.
Failure to follow these instructions will result in death or serious injury.

WARNING
UNEXPECTED EQUIPMENT OPERATION
Follow these instructions to reduce electromagnetic perturbations:
 Adapt the programmable filtering to the frequency applied at the inputs.
 Use a shielded cable (connected to the functional ground) connected to pins 15 and 16 of the
connector when using an encoder or a fast detector.
In a highly disturbed environment:
 Use the BMXXSP•••• shielding connection kit (see page 50) to connect the shielding without
programmable filtering and
 Use a specific 24 VDC supply for inputs and a shielded cable for connecting the supply to the
module.
Failure to follow these instructions can result in death, serious injury, or equipment damage.

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 BMX EHC 0200

The figure below shows the recommended circuit for high-noise environment using the shielding
connection kit:

Improper fuse selection could result in damage to the module.

NOTICE
MODULE DAMAGE
Use fast acting fuses to protect the electronic components of the module from overcurrent and
reverse polarity of the input/output supplies.
Failure to follow these instructions can result in equipment damage.

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Shielding Connection Kit

Introduction
The BMXXSP•••• shielding connection kit allows to connect the cable shielding directly to the
ground and not to the module shielding to help protect the system from electromagnetic
perturbations.
Connect the shielding on the cordsets for connecting:
 Analog module,
 Counter module,
 Encoder interface module,
 Motion control module,
 An XBT console to the processor (via shielded USB cable).

Kit References
Each shielding connection kit includes the following components:
 A metal bar
 Two sub-bases

The reference is dependent on the number of slots on the Modicon X80 rack:

Modicon X80 rack Number of slots Shielding Connection Kit

BMXXBP0400(H) 4 BMXXSP0400
BMEXBP0400(H)
BMXXBP0600(H) 6 BMXXSP0600
BMEXBP0600(H)
BMXXBP0800(H) 8 BMXXSP0800
BMEXBP0800(H)
BMEXBP0602(H)
BMXXBP1200(H) 12 BMXXSP1200
BMEXBP1200(H)
BMEXBP1002(H)

Clamping Rings
Use clamping rings to connect the shielding on cordsets to the metal bar of the kit.
NOTE: The clamping rings are not included in the shielding connection kit.
Depending on the cable diameter, the clamping rings are available under the following references:
2
 STBXSP3010: small rings for cables with cross-section 1.5...6 mm (AWG16...10).
 STBXSP3020: large rings for cables with cross-section 5...11 mm2 (AWG10...7).

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 BMX EHC 0200

Kit Installation
Installation of the shielding connection kit to the rack can be done with module already installed on
the rack except for the BMXXBE0100 rack extender module.
Fasten the sub-bases of the kit at each end of the rack to provide a connection between the cable
and the ground screw of the rack:

1 rack
2 sub-base
3 metallic bar
4 clamping ring

Tightening torques to install the shielding connection kit:

 For the screws fixing the sub-base to the Modicon X80 rack: Max. 0.5 N•m (0.37 lbf-ft)
 For the screws fixing the metallic bar to the sub-bases: Max. 0.75 N•m (0.55 lbf-ft)

NOTE: A shielding connection kit does not modify the volume required when installing and
uninstalling modules.

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Kit Dimensions
The following figure gives the dimensions (height and depth) of a Modicon X80 rack with its
shielding connection kit:

NOTE: The overall width equals to the width of the Modicon X80 rack.

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Part III
Counting Module BMX EHC 0200 Functionalities

Counting Module BMX EHC 0200 Functionalities

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BMX EHC 0200 Functionalities
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Chapter 6
BMX EHC 0200 Counting Module Functionalities

BMX EHC 0200 Counting Module Functionalities

Subject of this Chapter

This chapter deals with functionalities and counting modes of the BMX EHC 0200 module.

What Is in This Chapter?

This chapter contains the following sections:
Section Topic Page
6.1 BMX EHC 0200 Module Configuration 56
6.2 BMX EHC 0200 Module Operation Modes 82

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Section 6.1
BMX EHC 0200 Module Configuration

BMX EHC 0200 Module Configuration

Subject of this Section

This section deals with the configuration of the BMX EHC 0200 module.

What Is in This Section?

This section contains the following topics:
Topic Page
Input Interface Blocks 57
Programmable Filtering 58
Comparison 59
Output Block Functions 62
Diagnostics 67
Synchronization, Homing, Enable, Reset to 0 and Capture Functions 69
Modulo Flag and Synchronization Flag 77
Sending Counting Events to the Application 79

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Input Interface Blocks

Description
The BMX EHC 0200 counting module has six inputs:
 3 fast inputs
 3 classic inputs

Fast Inputs
The table below presents the module’s fast inputs.

Input Use with sensors Use with an encoder

IN_A input Clock input for measurement or For signal A
single upcounting
IN_B input Second clock input for differential For signal B
counting or measurement
IN_SYNC input Main synchronization input used for For signal Z
starting and homing Used for homing

Classic Inputs
The table below presents the module’s classic inputs:

Input Use
IN_EN input Used to authorize counter operation
IN_REF input Used for homing in advanced mode
IN_CAP input Used for register capture

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Programmable Filtering

At a Glance
The BMX EHC 0200 counting module’s six inputs are compatible with the use of mechanical
switches.
A programmable debounce filter with 3 levels (low, medium and high) is available at every input.

Debounce Filter Diagram

The figure below shows the debounce filter with a low filtering level:

In this mode, the system delays all transitions until the signal is stable for 450 μs.

Selecting the Filtering Level

The table below specifies the characteristics of each input for the selected level of filtering:

Filtering level Input Maximum Minimum Maximum

delay pulse frequency
None IN_A, IN_B - 5 μs 60 KHz
IN_SYNC - 5 μs 200 Hz
IN_EN 50 μs - -
IN_CAP, IN_REF - 50 μs 200 Hz
Low IN_A, IN_B - 450 μs 1 KHz
for bounces > 2 KHz IN_EN 450 μs - -
IN_SYNC, IN_CAP, IN_REF - 500 μs 200 Hz
Resource IN_A, IN_B - 1.25 ms 350 Hz
for bounces > 1 KHz IN_EN 1.25 ms - -
IN_SYNC, IN_CAP, IN_REF - 1.25 ms 200 Hz
High IN_A, IN_B - 4.2 ms 100 Hz
for bounces > 250 Hz
IN_EN 4.2 ms - -
IN_SYNC, IN_CAP, IN_REF - 4.2 ms 100 Hz

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Comparison

At a Glance
The comparison block operates automatically. This block is available in certain counting modes:
 Frequency
 Period measuring
 Ratio
 One shot counter
 Modulo loop counter
 Free large counter

Comparison Thresholds
The comparison block has two thresholds:
 The upper threshold: upper_th_value double word (%QDr.m.c.4)
 The lower threshold: lower_th_value double word (%QDr.m.c.2)
The upper threshold value must be greater than the lower threshold value.
If the upper threshold is less than or equal to the lower threshold, the lower threshold does not
change but it is ignored.
This rule takes into account the format of the counter value.

Comparison Status Register

The result of the comparison is stored in the compare_status register (%IWr.m.c.1).
The values of the two capture registers and the current value of the counter are compared with the
thresholds.
The possible results are:
 Low: The value is less than the lower threshold value.
 Window: The value is between the upper and lower thresholds or equal to one of the two
thresholds.
 High: The value is greater than the upper threshold.
The compare_enableregister (%IWr.m.c.1) consists of:

Status 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
register bit
Compared Capture 1 Capture 0 Counter
element
Comparison High Window Low High Window Low High Window Low
result

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Update
When the compare_enable bit (%QWr.m.c.0.5) is set to 0, the comparison status register is
deleted.
The comparison with capture 0 and capture 1 registers values is performed every time the registers
are loaded.
The comparison with the counter current value is performed as follows:

Counting mode Registers updating

Frequency Intervals of 10 ms
Period measuring At the end of the period
Ratio Intervals of 10 ms
Event counting Period intervals defined by the user
One shot counter Intervals of 1 ms
Counter reloading
Counter stops
Threshold crossing
Modulo loop Intervals of 1 ms
Counter reloading or resetting to 0
Counter stops
Threshold crossing
Free large counter Intervals of 1 ms
Counter reloading
Threshold crossing
Pulse width modulation Function not available in this mode

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 BMX EHC 0200 Functionalities

Modification of the Thresholds during the Operational Phase

When the compare_enable bit (%QWr.m.c.0.5) is set to 0, the comparison status register is
deleted.
When the compare_suspend bit (%QWr.m.c.0.6) is set to 1, the value of the comparison status
register is frozen until the bit switches back to 0.
The application may change threshold values without causing any disturbance when the
compare_suspend bit (%QWr.m.c.0.6) is set to 1.
This functionality allows modifying the application thresholds without modifying the status register
behaviour.
When this bit switches back to 0, the comparisons restart with new threshold values.
The following figure illustrates the actions of the compare_enable bit (%QWr.m.c.0.5) and the
compare_suspend bit (%QWr.m.c.0.6):

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Output Block Functions

Output Function Blocks

Every channel in the counting module has two programmable output blocks that operate with the
comparison status register and affect the behavior of physical outputs Q0 and Q1.
There are two ways to control the output:
 From the application: in this case, the output corresponds to the status of the output bit from the
output command bit.
 From the output function block: in this case, the user must enable the output block function.
Then, the output corresponds to the status of the output bit from the function block.
The following figure shows the output function block Q0:

Use of the Function Block

Every physical output is controlled by two bits:
 output_block_0_enable (%Qr.m.c.2) and output_0 (%Qr.m.c.0) for block 0
 output_block_1_enable (%Qr.m.c.3) and output_1 (%Qr.m.c.1) for block 1

The output_block_0(1)_enable bit enables the operation of the function block 0(1) to be
authorized when it is set to 1. When the bit is set to 0, Bit output_block_0(1) is maintained at 0.
The output_0(1) bit is applied at the logic output Q0(1) and must be set to 0 when the function
block is used. When the bit is set to 1, the output is forced to 1.
In the operational modes where the block generates a pulse, the pulse width can be configured
thanks to the configuration screen.

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Output Programming
The table below shows the configurable functions:

Function Programming
code
0 Disabled = no direct action (Default value)
1 Low counter.
The output is high if the counter value is less than the low threshold.
2 Counter in a window
The output is high if the counter value is between the upper and lower thresholds or equal
to one of the two thresholds.
3 High counter.
The output is high if the counter value is greater than the upper threshold.
4 Pulse less than the lower threshold.
The output pulse starts when the counter value decreases and crosses the lower threshold
value -1.
5 Pulse greater than the lower threshold.
The output pulse starts when the counter value increases and crosses the lower threshold
value +1.
6 Pulse less than the upper threshold.
The output pulse starts when the counter value decreases and crosses the upper threshold
value -1.
7 Pulse greater than the upper threshold.
The output pulse starts when the counter value increases and crosses the upper threshold
value +1.
8 Counter stopped (only in one shot counter mode).
The output changes to high if the counter is stopped.
9 Counter running (only in one shot counter mode).
The output changes to high if the counter is running.
10 Capture 0 low value.
The output is high if the capture 0 value is less than the lower threshold.
11 Capture 0 value in a window.
The output is high if the capture 0 value is between the upper and lower thresholds or equal
to one of the two thresholds.
12 Capture 0 high value.
The output is high if the capture 0 value is greater than the upper threshold.
13 Capture1 low value.
The output is high if the capture1 value is less than the lower threshold.

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Function Programming
code
14 Capture1 value in a window.
The output is high if the capture1 value is between the upper and lower thresholds or equal
to one of the two thresholds.
15 Capture1 high value.
The output is high if the capture1 value is greater than the upper threshold.

NOTE: The output 0 function block is inactive when using the counter in pulse width modulation
mode.

Output Performances
In general, these reflex actions act with a delay less than 0.6 ms. The repeatability is about +/-
0.3 ms.
Special boost functions:
 "Counter Low" (function code 1) applied to Output Block 0
 "Counter High" (function code 3) applied to Output Block 1 speed up timing.

Delay is less than 0.2 ms. The repeatability is about +/- 1 s.

Output Properties
The counting module BMX EHC 0200 enables output signals to be exchanged with two 24VCC
field actuators.
It is possible to configure the following parameters for each output:
 The module response for fault recovery
 The output polarity for each counting channel (positive or negative polarity)
 The fallback mode and state for every module channel

These three parameters are described in the following pages.

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Fault Recovery response

Outputs Q0 and Q1 are current limited (0.5 A maximum).
A thermal shutdown protects each output.
When a short-circuit is detected on one of the output channels, the counting module enables one
of the two following actions according to the configuration:
 fault recovery parameter configured as latched off: The counting module latches off
the output channel
 fault recovery parameter configured as autorecovery: The counting module latches off
the output channel and automatically attempts to recover the error and to resume operation on
the channel when the error is corrected.
In case of the fault recovery parameter is configured to latched off, if an output channel
has been latched off because of short-circuit detection, the counting module recovers the fault
upon the following sequence is processed:
 The error has been corrected
 You explicitly reset the fault: To reset the error, the application software must:
 Reset the output_block_enable bit if it is active
 Command the ouput to 0 V ( depends on the polarity).

In case of the fault recovery parameter is configured to auto recovery, an output channel
that has been turned off because of error detection starts operating again as soon as the error is
corrected. No user intervention is required to reset the channels.
NOTE: A minimum delay of 10 s occurs before the error is cleared in both latched off and auto
recovery modes.

Output Polarity Programming

It is possible to configure the polarity parameter for each output during the channel
configuration:
 polarity parameter configured as polarity +: The physical output is 24 VDC when the
output is at the high level (output_0_echo = 1)
 polarity parameter configured as polarity -: The physical output is 24 VDC when the
output is at the low level (output_0_echo = 0)
By default, the two output channels are in positive polarity.

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Output Fallback Modes

The fallback modes are the predefined states to which the output channels revert when the channel
is not controlled by the processor (when communications are lost or when the processor is stopped
for example).
The fallback mode of each output channel can be configured as one of the following modes:
 Fallback value: With. You may configure the fallback value to apply as 0 or 1
 Fallback value: Without. The output block function continues to operate according to the last
received commands.
NOTE: By default, the fallback mode of the 2 output channels is with and the fallback value
parameter is 0.

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Diagnostics

Consistency Rules for Inputs Interface

The input interface requires that the sensor power supply remains active for counting operations.
When the sensor power supply interrupts lasts 1 ms or less, the counter remains stable.
In case of power interrupt is greater than 1 ms, all counter values are disabled.
By default, the sensor supply fault makes the CH_ERROR (%Ir.m.c.ERR) global status bit at the
high level and the red led IO lighted.
The configuration screen allows to unlink the sensor supply fault to the CH_ERROR bit by
configuring the parameter Input Supply Fault as local instead of General IO Fault.
IODDT_VAR1 is of the type T_Unsigned_CPT_BMX or T_Signed_CPT_BMX

Consistency Rules for Outputs Interface

The output interface requires that the actuator power supply remains active for output blocks
functions operations.
When the actuator supply voltage is insufficient the ouputs are held to 0 V.
By default, the actuator supply fault makes the CH_ERROR (%Ir.m.c.ERR) global status bit at the
high level and the red led IO lighted.
The configuration screen allows to unlink the actuator supply fault to the CH_ERROR bit by
configuring the parameter Output Supply Fault as local instead of General IO Fault.
IODDT_VAR1 is of the type T_Unsigned_CPT_BMX or T_Signed_CPT_BMX

Explicit channel status words

The table below presents the composition of the %MWr.m.c.2 and %MWr.m.c.3 status words:

Status Word Bit position Designation

%MWr.m.c.2 0 External fault at inputs
1 External fault at outputs
4 Internal error or self-testing.
5 Configuration Fault
6 Communication Error
7 Application fault
%MWr.m.c.3 2 Sensor supply fault
3 Actuator supply fault
4 Short circuit on output Q0
5 Short circuit on output Q1

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IO Data
All input/output statuses are provided in the channel data bits.
The table below shows the channel data bits:

Input/Output data field Designation

%Ir.m.c.0 Logical state of output Q0
%Ir.m.c.1 Logical state of output Q1
%Ir.m.c.2 State of the output block function 0
%Ir.m.c.3 State of the output block function 1
%Ir.m.c.4 Electrical state of IN_A input
%Ir.m.c.5 Electrical state of IN_B input
%Ir.m.c.6 Electrical state of IN_SYNC input
%Ir.m.c.7 Electrical state of IN_EN input
%Ir.m.c.8 Electrical state of IN_REF input
%Ir.m.c.9 Electrical state of IN_CAP input

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Synchronization, Homing, Enable, Reset to 0 and Capture Functions

Introduction
This section presents the functions used by the various counting modes of the BMX EHC 0200
module:
 Synchronization function
 Homing function
 Enable function
 Reset to 0 function
 Capture functions
Each function uses at least one of the following two bits:
 valid_(function) bit: Setting this bit to 1 allows you to take into account the occurrence of
an external event which activates the function. If this bit is set to 0, the event is not taken into
account and does not activate the function. The functions_enabling word (%QWr.m.c.0)
contains all the valid_(function) bits.
 force_(function) bit: Setting this bit to 1 allows you to activate the function irrespective of
the status of the external event. All the force_(function) bits are %Qr.m.c.4...%Qr.m.c.8
language objects.

Synchronization Function
The synchronization function is used to synchronize the counter operation upon a transition
applied to the IN_SYNC (%I r.m.c.6) physical input or the force_sync bit set to 1.
This function is usable in the following counting modes:
 Pulse width modulation: to restart the output signal at the beginning (phase at 1)
 Modulo loop counter: to reset and start the counter
 One shot counter: to preset and start the counter
 Event counting: to restart the internal time base at the beginning
The user may configure the synchro edge parameter in the configuration screen by choosing
from the following two possibilities to configure the sensitive edge that carries out the
synchronization:
 Rising edge of the IN_SYNC input
 Falling edge of the IN_SYNC input

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The following table presents the force_sync bit in bold which is an element of the %Qr.m.c.d
output command word:

Language Standard symbol Meaning

object
%Qr.m.c.0 OUTPUT_0 Forces OUTPUT_0 to level 1
%Qr.m.c.1 OUTPUT_1 Forces OUTPUT_1 to level 1
%Qr.m.c.2 OUTPUT_BLOCK_0_ENABLE Implementation of output 0 function block
%Qr.m.c.3 OUTPUT_BLOCK_1_ENABLE Implementation of output 1 function block
%Qr.m.c.4 FORCE_SYNC Counting function synchronization and
start
%Qr.m.c.5 FORCE_REF Set to preset counter value
%Qr.m.c.6 FORCE_ENABLE Implementation of counter
%Qr.m.c.7 FORCE_RESET Reset counter
%Qr.m.c.8 SYNC_RESET Reset SYNC_REF_FLAG
%Qr.m.c.9 MODULO_RESET Reset MODULO_FLAG

The following table presents the valid_sync bit in bold which is an element of the %QWr.m.c.0
function enabling word:

Language object Standard symbol Meaning

%QWr.m.c.0.0 VALID_SYNC Synchronization and start authorization for
the counting function via the IN_SYNC
input
%QWr.m.c.0.1 VALID_REF Operation authorization for the internal
preset function
%QWr.m.c.0.2 VALID_ENABLE Authorization of the counter enable via the
IN_EN input
%QWr.m.c.0.3 VALID_CAPT_0 Capture authorization in the capture0
register
%QWr.m.c.0.4 VALID_CAPT_1 Capture authorization in the capture1
register
%QWr.m.c.0.5 COMPARE_ENABLE Comparators operation authorization
%QWr.m.c.0.6 COMPARE_SUSPEND Comparator frozen at its last value

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The following table presents the synchronization principle:

Edge Status of the Status of the counter

valid_sync
(%QWr.m.c.0.0) bit
Rising or falling edge on Set to 0 Not synchronized
IN_SYNC (depending on the
configuration)
Rising or falling edge on Set to 1 Synchronized
IN_SYNC (depending on the
configuration)
Rising edge on force_sync Set to 0 or 1 Synchronized
(%Qr.m.c.4) bit

When the synchronization occurs, the application can react using :

 either the SYNC_REF_FLAG input (%IWr.m.c.0.2) (see page 77)
 or the EVT_SYNC_PRESET input (%IWr.m.c.10.2) (see page 79).

Homing Function
This homing function loads the value predefined in the adjust screen preset value
(%MDr.m.c.6) into the counter when the preset condition (defined by the preset mode
parameter) occurs. This preset condition takes into account the IN_SYNC and IN_REF physical
inputs to define the reference point of the process.
This function is only used in the free large counter mode.
The user may change the Preset Mode parameter in the configuration screen by choosing from
the following five possibilities to configure the preset condition:
 Rising edge of the IN_SYNC input
 Rising edge of the IN_REF input
 Rising edge of the IN_SYNC input and high level of the IN_REF input
 First rising edge of the IN_SYNC input and high level of the IN_REF input
 First rising edge of the IN_SYNC input and low level of the IN_REF input

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The following table presents the force_ref bit in bold which is an element of the %Qr.m.c.d
output command word:

Language Standard symbol Meaning

object
%Qr.m.c.0 OUTPUT_0 Forces OUTPUT_0 to level 1
%Qr.m.c.1 OUTPUT_1 Forces OUTPUT_1 to level 1
%Qr.m.c.2 OUTPUT_BLOCK_0_ENABLE Implementation of output 0 function block
%Qr.m.c.3 OUTPUT_BLOCK_1_ENABLE Implementation of output 1 function block
%Qr.m.c.4 FORCE_SYNC Counting function synchronization and
start
%Qr.m.c.5 FORCE_REF Set to preset counter value
%Qr.m.c.6 FORCE_ENABLE Implementation of counter
%Qr.m.c.7 FORCE_RESET Reset counter
%Qr.m.c.8 SYNC_RESET Reset SYNC_REF_FLAG
%Qr.m.c.9 MODULO_RESET Reset MODULO_FLAG

The following table presents the valid_ref bit in bold which is an element of the %QWr.m.c.0
function enabling word:

Language object Standard symbol Meaning

%QWr.m.c.0.0 VALID_SYNC Synchronization and start authorization for
the counting function via the IN_SYNC
input
%QWr.m.c.0.1 VALID_REF Operation authorization for the internal
preset function
%QWr.m.c.0.2 VALID_ENABLE Authorization of the counter enable via the
IN_EN input
%QWr.m.c.0.3 VALID_CAPT_0 Capture authorization in the capture0
register
%QWr.m.c.0.4 VALID_CAPT_1 Capture authorization in the capture1
register
%QWr.m.c.0.5 COMPARE_ENABLE Comparators operation authorization
%QWr.m.c.0.6 COMPARE_SUSPEND Comparator frozen at its last value

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The following table presents the homing principle:

Edge Status of the Status of the counter

valid_ref bit
(%QWr.m.c.0.1)
Homing condition edge Set to 0 Not preset
(depending on the configuration)
Homing condition edge Set to 1 Preset
(depending on the configuration)
Rising edge on force_ref bit Set to 0 or 1 Preset
(%Qr.m.c.5)

When the preset occurs consequently to the preset condition, the application can react using:
 either the SYNC_REF_FLAG input (%IWr.m.c.0.2) (see page 77)
 or the EVT_SYNC_PRESET input (%IWr.m.c.10.2) (see page 79).

Enable Function
This function is used to authorize changes to the current counter value depending on the status of
the IN_EN physical input.
This function is used in the following counting modes:
 Pulse width modulation
 Modulo loop counter
 One shot counter
 Free large counter
The following table presents the force_enable bit in bold which is an element of the %Qr.m.c.d
output command word:

Language Standard symbol Meaning

object
%Qr.m.c.0 OUTPUT_0 Forces OUTPUT_0 to level 1
%Qr.m.c.1 OUTPUT_1 Forces OUTPUT_1 to level 1
%Qr.m.c.2 OUTPUT_BLOCK_0_ENABLE Implementation of output 0 function block
%Qr.m.c.3 OUTPUT_BLOCK_1_ENABLE Implementation of output 1 function block
%Qr.m.c.4 FORCE_SYNC Counting function synchronization and start
%Qr.m.c.5 FORCE_REF Set to preset counter value
%Qr.m.c.6 FORCE_ENABLE Implementation of counter
%Qr.m.c.7 FORCE_RESET Reset counter
%Qr.m.c.8 SYNC_RESET Reset SYNC_REF_FLAG
%Qr.m.c.9 MODULO_RESET Reset MODULO_FLAG

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The following table presents the valid_enable bit in bold which is an element of the
%QWr.m.c.0 function enabling word:

Language object Standard symbol Meaning

%QWr.m.c.0.0 VALID_SYNC Synchronization and start authorization for
the counting function via the IN_SYNC
input
%QWr.m.c.0.1 VALID_REF Operation authorization for the internal
preset function
%QWr.m.c.0.2 VALID_ENABLE Authorization of the counter enable via the
IN_EN input
%QWr.m.c.0.3 VALID_CAPT_0 Capture authorization in the capture0
register
%QWr.m.c.0.4 VALID_CAPT_1 Capture authorization in the capture1
register
%QWr.m.c.0.5 COMPARE_ENABLE Comparators operation authorization
%QWr.m.c.0.6 COMPARE_SUSPEND Comparator frozen at its last value

The following table presents the validation principle:

Condition Status of the valid_enable Status of the counter

bit (%QWr.m.c.0.2) and
force_enable bit
(%Qr.m.c.6)
IN_EN set to 1 The 2 bits are set to 0 Not counting (frozen)
IN_EN set to 1 At least one of the two bits is Counting (free)
set to 1

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Reset to 0 Function
This function is used to load the value 0 into the counter via software command.
This function is used in the following counting modes:
 Free large counter
 Modulo loop counter
 One shot counter
The following table presents the force_reset bit in bold which is an element of the %Qr.m.c.d
output command word:

Language Standard symbol Meaning

object
%Qr.m.c.0 OUTPUT_0 Forces OUTPUT_0 to level 1
%Qr.m.c.1 OUTPUT_1 Forces OUTPUT_1 to level 1
%Qr.m.c.2 OUTPUT_BLOCK_0_ENABLE Implementation of output 0 function block
%Qr.m.c.3 OUTPUT_BLOCK_1_ENABLE Implementation of output 1 function block
%Qr.m.c.4 FORCE_SYNC Counting function synchronization and
start
%Qr.m.c.5 FORCE_REF Set to preset counter value
%Qr.m.c.6 FORCE_ENABLE Implementation of counter
%Qr.m.c.7 FORCE_RESET Reset counter
%Qr.m.c.8 SYNC_RESET Reset SYNC_REF_FLAG
%Qr.m.c.9 MODULO_RESET Reset MODULO_FLAG

The function is only activated by the rising edge of the force_reset bit (%Qr.m.c.7). There is
no valid_reset bit because the function is not activated by any physical input.

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Capture Function
This function allows to store the current counter value into a capture register upon an external
condition.
Each BMX EHC 0200 module channel has 2 capture registers:
 capture0
 capture1.
The capture function is used in the following counting modes:
 Modulo loop counter
 Free large counter.
In the modulo loop counter mode, only the capture0 function is available.
The function enables to record the current counter value according to the synchronisation
condition.
If the IN_SYNC input receives the sensitive edge of synchronization (see page 69), the current
counter value is stored into the capt_0_val register (%IDr.m.c.14). The valid_capt_0 bit
(%QWr.m.c.0.3) must be set to 1 to operate.
When the synchronization is requiered at the same time (with the valid_sync bit set to 1) the
storage into the capt_0_val register occurs just before reseting the current counter value.
In the free large counter mode, both capture0 and capture1 registers are available.
The capture1 function always stores the current counter value into the capt_1_val register
(%IDr.m.c.16) as soon as the IN_CAP input receives a rising edge. The valid_capt_1 bit
(%QWr.m.c.0.4) must be set to 1 to operate.
The capture0 function can be configured as one of the following 2 conditions:
 Preset condition
 Falling edge of the IN_CAP input.
The valid_capt_0 bit (%QWr.m.c.0.3) must be set to 1 to operate.
If the capture0 function is configured as the preset condition, the function stores the current
counter value into the capt_0_val register (%IDr.m.c4) when the defined preset condition
(see page 71) occurs.
When the preset is requiered at the same time (with the valid_ref bit set to 1) the storage into
the capt_0_val register occurs just before loading the current counter value at the preset value.
In all cases, the current counter value must be valid before the capture event (the validity bit
(%IWr.m.c.0.3) set to 1)

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Modulo Flag and Synchronization Flag

At a Glance
This section presents the operation of the bits relating to the following events:
 Synchronization or counter homing event, depending on the counting mode.
 Counter rollovers the modulo or its limits in forward or reverse.
The table below presents the counting modes that may activate synchronization, homing and
modulo events:

Flag Counting mode concerned

sync_ref_flag bit  Free Large counter: When the counter presets
(%IWr.m.c.0.2)  Modulo loop counter: When the counter resets
 One shot counting: When the counter presets and
starts
modulo_flag bit (%IWr.m.c.0.1  Modulo loop counter: When the counter rollovers
the modulo or 0
 Free large counter: When the counter rollovers its
limits.

Operation of the Flag Bits

The synchronization or homing event’s flag bit is set to 1 when a counter synchronization or homing
occurs.
The modulo event's flag bit is set to 1 in the following counting modes:
 Modulo loop counter mode: the flag bit is set to 1 when the counter rollovers the modulo
 Free large counter mode: the flag bit is set to 1 when the counter rollovers its limits in forward
or reverse

Location of the Flag Bits

The following table presents the modulo_flag and sync_ref_flag bits which are elements of
the %IWr.m.c.d status word:

Language object Standard symbol Meaning

%IWr.m.c.0.0 RUN The counter operates in one shot mode only
%IWr.m.c.0.1 MODULO_FLAG Flag set to 1 by a modulo switch event
%IWr.m.c.0.2 SYNC_REF_FLAG Flag set to 1 by a preset or synchronization event
%IWr.m.c.0.3 VALIDITY The current numerical value is valid
%IWr.m.c.0.4 HIGH_LIMIT The current numerical value is locked at the upper
threshold value
%IWr.m.c.0.5 LOW_LIMIT The current numerical value is locked at the lower
threshold value

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Resetting the Flag Bits to 0

The user application must reset the flag bit to 0 (if it is active) by using the appropriate command
bit from the following two bits:
 sync_reset (%IWr.m.c.8) bit to reset the synchronization or homing event's flag bit to 0
 modulo_reset (%IWr.m.c.9) bit to reset the modulo reached event's flag bit to 0

Location of Reset to 0 Commands

The following table presents the sync_reset and modulo_reset bits which are elements of the
%Qr.m.c.d output command word:

Language Standard symbol Meaning

object
%Qr.m.c.0 OUTPUT_0 Forces OUTPUT_0 to level 1
%Qr.m.c.1 OUTPUT_1 Forces OUTPUT_1 to level 1
%Qr.m.c.2 OUTPUT_BLOCK_0_ENABLE Implementation of output 0 function block
%Qr.m.c.3 OUTPUT_BLOCK_1_ENABLE Implementation of output 1 function block
%Qr.m.c.4 FORCE_SYNC Counting function synchronization and
start
%Qr.m.c.5 FORCE_REF Set to preset counter value
%Qr.m.c.6 FORCE_ENABLE Implementation of counter
%Qr.m.c.7 FORCE_RESET Reset counter
%Qr.m.c.8 SYNC_RESET Reset SYNC_REF_FLAG
%Qr.m.c.9 MODULO_RESET Reset MODULO_FLAG

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Sending Counting Events to the Application

At a Glance
The event task number must be declared in the module’s configuration screen to enable the events
sending.
The BMX EHC 0200 module has eight event sources contained in the events_source word at
the address %IWr.m.c.10:

Address Standard Symbol Description Counting mode concerned

%IWr.m.c.10.0 EVT_RUN Event due to start of One Shot Counter mode
counting.
%IWr.m.c.10.1 EVT_MODULO Event due to counter being  Modulo Loop Counter Mode
equal to modulo value - 1 or  Free Large Counter mode
equal to value 0.
%IWr.m.c.10.2 EVT_SYNC_PRESET Event due to a  Event Counting mode
synchronization or counter  One Shot Counter mode
homing.  Modulo Loop Counter mode
 Free Large Counter mode
%IWr.m.c.10.3 EVT_COUNTER_LOW Event due to counter being  Frequency mode
less than the lower  Event Counting mode
threshold.  Period Measuring mode
 Ratio mode
 One Shot Counter mode
 Modulo Loop Counter mode
 Free Large Counter mode
%IWr.m.c.10.4 EVT_COUNTER_WINDOW Event due to counter being  Frequency mode
between the upper and  Event Counting mode
lower thresholds.  Period Measuring mode
 Ratio mode
 One Shot Counter mode
 Modulo Loop Counter mode
 Free Large Counter mode
%IWr.m.c.10.5 EVT_COUNTER_HIGH Event due to counter being  Frequency mode
greater than the upper  Event Counting mode
threshold.  Period Measuring mode
 Ratio mode
 One Shot Counter mode
 Modulo Loop Counter mode
 Free Large Counter mode
%IWr.m.c.10.6 EVT_CAPT_0 Event due to capture 0.  Modulo Loop Counter Mode
 Free Large Counter mode
%IWr.m.c.10.7 EVT_CAPT_1 Event due to capture 1. Free Large Counter mode

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Address Standard Symbol Description Counting mode concerned

%IWr.m.c.10.8 EVT_OVERRUN Event due to overrun  Frequency mode
 Event Counting mode
 Period Measuring mode
 Ratio mode
 One Shot Counter mode
 Modulo Loop Counter mode
 Free Large Counter mode

All the events sent by the module, whatever their source, call the same single event task in the
PLC.
There is normally only one type of event indicated per call.
The evt_sources word (%IWr.m.c.10) is updated at the start of the event task processing.

Enabling Events
In order for a source to produce an event, the validation bit corresponding to the event must be set
to 1:

Address Description
%QWr.m.c.1.0 Start of counting event validation bit.
%QWr.m.c.1.1 Counter rollovering modulo, 0 or its limits event validation bit.
%QWr.m.c.1.2 Synchronization or counter homing event validation bit.
%QWr.m.c.1.3 Counter less than lower threshold event validation bit.
%QWr.m.c.1.4 Counter between the upper and lower thresholds event validation bit.
%QWr.m.c.1.5 Counter greater than upper threshold event validation bit.
%QWr.m.c.1.6 Capture 0 event validation bit.
%QWr.m.c.1.7 Capture 1 event validation bit.

Input Interface
The event only has one input interface. This interface is only updated at the start of the event task
processing. The interface consists of:
 The evt_sources word (%IWr.m.c.10)
 The current value of the counter during the event (or an approximate value) contained in the
counter_value word (%IDr.m.c.12)
 The capt_0_val register (%IDr.m.c.14) updated if the event is the capture 0
 The capt_1_val register (%IDr.m.c.16) updated if the event is the capture 1

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Operating Limits
Each counter channel can produce a maximum of one event per millisecond, but this flow may be
slowed down by simultaneously sending events to several modules on the PLC bus.
Each counter channel has a four slot transmission buffer which can be used to store several events
while waiting to be sent.
If the channel is unable to send all of the internally produced events, the overrun_evt bit
(%IWr.m.c.10.8) of the evt_sources word is set to 1.

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Section 6.2
BMX EHC 0200 Module Operation Modes

BMX EHC 0200 Module Operation Modes

Subject of this Section

This section deals with the different counting modes of the BMX EHC 0200 module.

What Is in This Section?

This section contains the following topics:
Topic Page
BMX EHC 0200 Module Operation in Frequency Mode 83
BMX EHC 0200 Module Operation in Event Counting Mode 84
BMX EHC 0200 Module Operation in Period Measuring Mode 86
BMX EHC 0200 Module Operation in Ratio Mode 89
BMX EHC 0200 Module Operation in One Shot Counter Mode 92
BMX EHC 0200 Module Operation in Modulo Loop Counter Mode 95
BMX EHC 0200 Module Operation in Free Large Counter Mode 99
BMX EHC 0200 Module Operation in Pulse Width Modulation Mode 107

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BMX EHC 0200 Module Operation in Frequency Mode

At a Glance
Using the frequency mode allows you to measure an event frequency, speed, rate and flow.

Basic Principle
In this mode, the module monitors the pulses applied only to the IN_A input and calculates the
number of pulses in time intervals of 1 s. The current frequency is then shown in number of events
per second (hertz). The counting register is updated at the end of each 10 ms interval.

Counter Status Bits in Frequency Mode

The table below shows the composition of the counter’s %IWr.m.c.0 status word in frequency
mode.

Bit Label Description

%IWr.m.c.0.3 VALIDITY Validity bit is used to indicate that the counter
current value (frequency) and compare status
registers contain valid data.
If the bit is set to 1, the data is valid.
If the bit is set to 0, the data is not valid.
%IWr.m.c.0.4 HIGH_LIMIT The bit is set to 1 when the input frequency signal
is out of range.

Type of the IODDT

In this mode, the type of the IODDT must be T_UNSIGNED_CPT_BMX.

Operating Limits
The maximum frequency that the module can measure on the IN_A input is 60 kHz. Beyond
60 kHz, the counting register value may decrease until it reaches 0. Beyond 60 kHz and up to the
real cut-off frequency of 100 kHz, the module may indicate that it has exceeded the frequency limit.
When there is a variation in frequency, the value restoration time is 1 s with a value precision of
1 Hz. When there is a very significant variation in frequency, an accelerator enables you to restore
the frequency value with a precision of 10 Hz in 0.1 s.
The maximum duty cycle at 60 KHz is 60%.
NOTE: You have to check the validity bit (%IWr.m.c.0.3) before taking into account the
numerical values such as the counter and the capture registers. Only the validity bit at the high
level (set to 1) guarantees that the mode will operate correctly within the limits.

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BMX EHC 0200 Module Operation in Event Counting Mode

At a Glance
Using the event counting mode allows you to determine the number of events received in a
scattered manner.

Basic Principle
In this mode, the counter assesses the number of pulses applied at the IN_A input, at time intervals
defined by the user. The counting register is updated at the end of each interval with the number
of events received.
It is possible to use the IN_SYNC input over a time interval, provided that the validation bit is set
to 1. This restarts the event counting for a new predefined time interval. Depending on the selection
made by the user, the time interval starts at the rising edge or at the falling edge on the IN_SYNC
input.

Operation
The trend diagram below illustrates the counting process in event counting mode:

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Counter Status Bits in Event Counting Mode

The table below shows the composition of the counter’s %IWr.m.c.0 status word in event
counting mode:

Bit Label Description

%IWr.m.c.0.2 SYNC_REF_FLAG The bit is set to 1 when the internal time base has
been synchronized.
The bit is set to 0 when the sync_reset
command is received (rising edge of the
%Qr.m.c.8 bit).
%IWr.m.c.0.3 VALIDITY Validity bit is used to indicate that the counter
current value (events number) and compare
status registers contain valid data.
If the bit is set to 1, the data is valid.
If the bit is set to 0, the data is not valid.
%IWr.m.c.0.4 HIGH_LIMIT The bit is set to 1 when the number of received
events exceeds the counter size.
The bit is reset to 0 at the next period if the limit
is not reached.
%IWr.m.c.0.5 LOW_LIMIT The bit is set to 1 when more than one
synchronization is received within 5 ms period.
The bit is reset to 0 at the next period if the limit
is not reached.

Type of the IODDT

In this mode, the type of the IODDT must be T_UNSIGNED_CPT_BMX.

Operating Limits
The module counts the pulses applied at the IN_A input every time the pulse duration is greater
than 5 μs (without debounce filter).
The synchronization of the counter must not be done more than one time per 5 ms.
NOTE: You have to check the validity bit (%IWr.m.c.0.3) before taking into account the
numerical values such as the counter and the capture registers. Only the validity bit at the high
level (set to 1) guarantees that the mode will operate correctly within the limits.

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BMX EHC 0200 Module Operation in Period Measuring Mode

At a Glance
Using the period measuring mode allows to:
 determine the duration of an event.
 determine the time between two events.
 set and measure the execution time for a process.

Basic Principle
This counting mode consists of two sub-modes:
 Rising edge to falling edge mode (edge to opposite): allows you to measure the duration of an
event.
 Rising edge to rising edge mode (edge to edge): allows you to measure the length of time
between two events.
The user may also use the IN_SYNC input to enable or stop a measurement. It is also possible to
specify a time out value in the configuration screen. This function allows to stop a measurement
that exceeds this time out. In this case, the counting register is not valid until the next complete
measurement.
The units used to measure the length of time of an event or between two events are defined by the
user (1 μs, 100 μs or 1 ms).

Edge to Opposite Mode

In this sub-mode, the measurement is taken between the rising edge and the falling edge of the
IN_A input. The counting register is updated as soon as the falling edge is detected.
The trend diagram below shows the operating mode of the edge to opposite sub-mode:

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Edge to Edge Mode

In this sub-mode, the measurement is taken between two rising edges of the IN_A input. The
counting register is updated as soon as the second rising edge is detected.
The trend diagram below shows the operating mode of the edge to edge sub-mode:

Using the Synchronization Function

The trend diagram below illustrates the period measurement counting process in edge to opposite
mode when using the synchronization function:

(1) The falling edge of the IN_SYNC input stops measurement C.

(2) This pulse is not measured because the IN_SYNC input is not at the high level.

NOTE: The valid_sync bit (%QWr.m.c.0.0) must be set to 1 to enable the IN_SYNC input. If
the IN_SYNC input is not wired, the application must force the setting of the force_sync bit
(%Qr.m.c.4) to 1 to authorize the measurements.

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Counter Status Bits in Period Measuring Mode

The table below shows the composition of the counter’s %IWr.m.c.0 status word in period
measuring mode:

Bit Label Description

%IWr.m.c.0.3 VALIDITY Validity bit is used to indicate that the counter
current value (period value) and compare status
registers contain valid data.
If the bit is set to 1, the data is valid.
If the bit is set to 0, the data is not valid.
%IWr.m.c.0.4 HIGH_LIMIT The bit is set to 1 when the measured period
exceeds the user-defined timeout.
The bit is reset to 0 at the next period if the
timeout is not reached.
%IWr.m.c.0.5 LOW_LIMIT The bit is set to 1 when more than one measure
occurs within 5 ms period.
The bit is reset to 0 at the next period if the limit
is not reached.

Type of the IODDT

In this mode, the type of the IODDT must be T_UNSIGNED_CPT_BMX.

Operating Limits
The module can perform a maximum of 1 measurement every 5 ms.
The shortest pulse that can be measured is 100 μs, even if the unit defined by the user is 1 μs.
The maximum duration that can be measured is 1,073,741,823 units of time (unit defined by the
user).
NOTE: You have to check the validity bit (%IWr.m.c.0.3) before taking into account the
numerical values such as the counter and the capture registers. Only the validity bit at the high
level (set to 1) guarantees that the mode will operate correctly within the limits.

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BMX EHC 0200 Module Operation in Ratio Mode

At a Glance
The ratio mode only uses the IN_A and IN_B inputs. This counting mode consists of two sub-
modes:
 Ratio 1: is used to divide two frequencies (Frequency IN_A / Frequency IN_B) and is useful, for
example, in applications such as flowmeters and mixers.
 Ratio 2: is used to subtract two frequencies (Frequency IN_A - Frequency IN_B) and is used in
the same applications but which require more precise adjustment (closer frequencies).
NOTE: A positive value indicates that the frequency measured on the IN_A input is greater than
the frequency measured on the IN_B input.
A negative value indicates that the frequency measured on the IN_A input is less than the
frequency measured on the IN_B input.

Ratio 1 Mode
The figure below shows BMX EHC 0200 module operation in Ratio 1 mode.
A
B

10 ms 10 ms
(f(A)/f(B))x1000 (f(A)/f(B))x1000

In this mode, the counter evaluates the ratio between the number of rising edges of the IN_A input
and the number of rising edges of the IN_B input over a period of 1 s. The register value is updated
every 10 ms.
An absolute limit value is declared on the configuration screen. If this limit value is exceeded, the
counter_value register (%IDr.m.c.12) is disabled by setting the validity bit
(%IWr.m.c.0.3) to 0.
If no frequency is applied to the IN_A or IN_B inputs, the counter_value register
(%IDr.m.c.12) is disabled by setting the validity bit (%IWr.m.c.0.3) to 0.
NOTE: The ratio 1 mode presents the results in thousandths in order to have greater level of
precision (where 2,000 is displayed, this corresponds to a value of 2).

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Ratio 2 Mode
The figure below shows BMX EHC 0200 module operation in Ratio 2 mode.
A
B

10 ms 10 ms
f(A) – f(B) f(A) – f(B)

In this mode, the counter evaluates the difference between the number of rising edges of the IN_A
input and the number of rising edges of the IN_B input over a period of 1 s. The counter_value
register (%IDr.m.c.12) is updated at the end of each 10 ms interval.
An absolute limit value is declared on the configuration screen. If this limit value is exceeded, the
counter_value register (%IDr.m.c.12) is disabled and the validity bit (%IWr.m.c.0.3)
to 0.

Counter Status Bits in Ratio Mode

The table below shows bits that are used by the status word %IWr.m.c.0 when the counter is
configured in ratio mode:

Bit Label Description

%IWr.m.c.0.3 VALIDITY Validity bit is used to indicate that the counter current value
(ratio value) and compare status registers contain valid data.
If the bit is set to 1, the data is valid.
If the bit is set to 0, the data is not valid.
%IWr.m.c.0.4 HIGH_LIMIT The bit signals a error when the ratio exceeds the absolute
limit.
The bit is set to 1 when frequency to IN_A becomes too fast.
The bit is reset to 0 when the frequency to IN_A remains
correct.
%IWr.m.c.0.5 LOW_LIMIT The bit signals a error when the ratio exceeds the absolute
limit.
The bit is set to 1 when frequency to IN_B becomes too fast.
The bit is reset to 0 when the frequency to IN_B remains
correct.

Type of the IODDT

In this mode, the type of the IODDT must be T_SIGNED_CPT_BMX.

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Operating Limits
The maximum frequency that the module can measure on the IN_A and IN_B inputs is 60 kHz.
The measured values are between -60,000,000,000 and +60,000,000,000.
NOTE: You have to check the validity bit (%IWr.m.c.0.3) before taking into account the
numerical values such as the counter and the capture registers. Only the validity bit at the high
level (set to 1) guarantees that the mode will operate correctly within the limits.

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BMX EHC 0200 Module Operation in One Shot Counter Mode

At a Glance
Using the one shot counter mode allows you to quantify a group of parts.

Basic Principle
In this mode, activating the synchronization function starts the counter which, starting from a value
defined by the user in the adjust screen (preset value), decreases with every pulse applied to
the IN_A input until it reaches the value 0. Downcounting is made possible when the enable
function is activated. The counting register is thus updated every 1 ms.
One basic use of this mode is, using an output, to indicate the end of a group of operations (when
the counter reaches 0).

Operation
The trend diagram below illustrates the counting process in one shot counter mode:

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In the trend diagram above, we can see that the counter is set to the preset value at the IN_SYNC
input’s rising edge. Then, the counter decrements the counting register with every pulse applied to
the IN_A input. When the register is set to 0, the counter awaits a new signal from the IN_SYNC
input. The IN_A input pulses have no effect on the register value as long as the counter is set to 0.
The enable function must be activated during the counting by:
 setting to 1 the force_enable bit
 setting to 1 the valid_enable bit and when the IN_EN input is at the high level
When the enable function is deactivated, the last value reported in the counting register is
maintained and the counter ignores the pulses applied to the IN_A input. However, it does not
ignore the IN_SYNC input status.
Each time the counter starts a downcounting operation, the run bit switches to the high level. It
switches to the low level when the register value reaches 0.
NOTE: The pulses applied to IN_SYNC and IN_EN inputs are only taken into account when the
inputs are enabled (see page 73).
The value defined by the user (preset value) is contained in the word %MDr.m.c.6. The user may
change this value by specifying the value of this word by configuring the parameter in the adjust
screen or by using the WRITE_PARAM(IODDT_VAR1) Function. IODDT_VAR1 is of the type
T_UNSIGNED_CPT_BMX. This value change is only taken into account by the module after one of
the following conditions has been established:
 At the next synchronization if the counter is stopped (run bit set to 0)
 At the second synchronization if the counter is activated (run bit set to 1).

Counter Status Bits in One shot Counter Mode

The table below shows bits that are used by the status word %IWr.m.c.0 when the counter is
configured in one shot counter mode:

Bit Label Description

%IWr.m.c.0.0 RUN The bit is set to 1 when the counter is running.
The bit is set to 0 when the counter is stopped.
%IWr.m.c.0.2 SYNC_REF_FLAG The bit is set to 1 when the counter has been set to the
preset value and (re)started.
The bit is reset to 0 when the sync_reset command is
received (rising edge of the %Qr.m.c.8 bit).
%IWr.m.c.0.3 VALIDITY Validity bit is used to indicate that the counter current value
and compare status registers contain valid data.
If the bit is set to 1, the data is valid.
If the bit is set to 0, the data is not valid.

Type of the IODDT

In this mode, the type of the IODDT must be T_UNSIGNED_CPT_BMX.

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Operating Limits
The maximum frequency that can be applied to the IN_SYNC input is 1 pulse every 5 ms.
The maximum value defined by the user (preset value) is 4,294,967,295.
NOTE: You have to check the validity bit (%IWr.m.c.0.3) before taking into account the
numerical values such as the counter and the capture registers. Only the validity bit at the high
level (set to 1) guarantees that the mode will operate correctly within the limits.

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BMX EHC 0200 Module Operation in Modulo Loop Counter Mode

At a Glance
The use of the modulo loop counter mode is recommended for packaging and labeling applications
for which actions are repeated for series of moving objects.

Basic Principle
In the upcounting direction, the counter increases until it reaches the modulo value -1, the modulo
value being defined by the user. At the following pulse in the counting direction, the counter is reset
to 0 and the counting resumes.
In the downcounting direction, the counter decreases until it reaches 0. At the next pulse in the
counting direction, the counter is reset to the the modulo value -1, the modulo value being defined
by the user. The downcounting may then be resumed.
The enable function must be activated during the counting by:
 Setting to 1 the force_enable bit (%Qr.m.c.6)
 Setting to 1 the valid_enable bit (%QWr.m.c.0.2) when the IN_EN input is at the high level
When the enable function is deactivated, the last value reported in the counting register is
maintained and the counter ignores the pulses applied to the IN_A input. However, it does not
ignore the preset condition.
In the modulo loop counter mode, the counter must be synchronized at least one time to operate.
The current counter value is cleared each time the synchronization occurs.
The current counter value can be recorded into the capture0 register (see page 76) when the
condition of synchronization occurs (see page 69).
The modulo value defined by the user is contained in the modulo_value word %MDr.m.c.4. The
user may change this value by specifying the value of this word:
 In the ajust screen
 In the application, using the WRITE_PARAM(IODDT_VAR1) Function. IODDT_VAR1 is of the
type T_UNSIGNED_CPT_BMX.
The new modulo value is acknowledged if one of the two following conditions is met:
 The synchronization is activated
 The counter rollovers the value 0 in the downcounting direction or the modulo value -1 (this
value is the modulo value recorded before editing the new modulo value) in the upcounting
direction.

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Counting Interface
In this mode, the user may select one of the following counting configurations:
 A = Up, B = Down (default configuration)
 A = Impulse, B = Direction
 Normal Quadrature X1
 Normal Quadrature X2
 Normal Quadrature X4
 Reverse Quadrature X1
 Reverse Quadrature X2
 Reverse Quadrature X4.
The following table shows the upcounting and downcounting principle according to the selected
configuration:

Selected configuration Upcounting condition Downcounting condition

A = Up, B = Down Rising edge at the IN_A input. Rising edge at the IN_B input.
A = Impulse, B = Direction Rising edge at the IN_A input and low Rising edge at the IN_A input and high state at
state at the IN_B input. the IN_B input.
Normal Quadrature X1 Rising edge at the IN_A input and low Falling edge at the IN_A input and low state at
state at the IN_B input. the IN_B input
Normal Quadrature X2 Rising edge at the IN_A input and low Falling edge at the IN_A input and low state at
state at the IN_B input. the IN_B input.
Falling edge at the IN_A input and high Rising edge at the IN_A input and high level at
state at the IN_B input. the IN_B input.
Normal Quadrature X4 Rising edge at the IN_A input and low Falling edge at the IN_A input and low state at
state at the IN_B input. the IN_B input.
High state at the IN_A input and rising Low state at the IN_A input and rising edge at
edge at the IN_B input. the IN_B input.
Falling edge at the IN_A input and high Rising edge at the IN_A input and high level at
state at the IN_B input. the IN_B input.
Low state at the IN_A input and falling High state at the IN_A input and falling edge at
edge at the IN_B input. the IN_B input.
Reserve Quadrature X1 Falling edge at the IN_A input and low Rising edge at the IN_A input and low state at
state at the IN_B input. the IN_B input.
Reserve Quadrature X2 Falling edge at the IN_A input and low Rising edge at the IN_A input and low state at
state at the IN_B input. the IN_B input.
Rising edge at the IN_A input and high Falling edge at the IN_A input and high state
level at the IN_B input. at the IN_B input.

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Selected configuration Upcounting condition Downcounting condition

Reserve Quadrature X4 Falling edge at the IN_A input and low Rising edge at the IN_A input and low state at
state at the IN_B input. the IN_B input.
Low state at the IN_A input and rising High state at the IN_A input and rising edge at
edge at the IN_B input. the IN_B input.
Rising edge at the IN_A input and high Falling edge at the IN_A input and high state
level at the IN_B input. at the IN_B input.
High state at the IN_A input and falling Low state at the IN_A input and falling edge at
edge at the IN_B input. the IN_B input.

Operation
The trend dithe modulo counting process in the configuration by default (IN_A = counting, In_B =
downcounting):

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Counter Status Bits in Modulo Loop Counter Mode

The table below shows the composition of the counter’s %IWr.m.c.0 status word in modulo loop
counter mode:

Bit Label Description

%IWr.m.c.0.1 MODULO_FLAG The bit is set to 1 when the counter rollovers the
modulo and is .
The bit is reset to 0 when the command
MODULO_RESET (%Qr.m.c.9) is received (rising
edge of the MODULO_RESET bit).
%IWr.m.c.0.2 SYNC_REF_FLAG The bit is set to 1 when the counter have been set
to 0 and (re)started.
The bit is reset to 0 when the command
SYNC_RESET (%Qr.m.c.8) is received (rising
edge of the SYNC_RESET bit).
%IWr.m.c.0.3 VALIDITY Validity bit is used to indicate that the counter
current value and compare status registers
contain valid data.
If the bit is set to 1, the data is valid.
If the bit is set to 0, the data is not valid.

Type of the IODDT

In this mode, the type of the IODDT must be T_UNSIGNED_CPT_BMX.

Operating Limits
The maximum frequency that can be applied to the IN_SYNC input is 1 pulse every 5 ms.
The maximum frequency for the modulo event is once every 5 ms.
The maximum value for the defined modulo value and the counter is 4,294,967,295.
NOTE: You have to check the validity bit (%IWr.m.c.0.3) before taking into account the
numerical values such as the counter and the capture registers. Only the validity bit at the high
level (set to 1) guarantees that the mode will operate correctly within the limits.

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BMX EHC 0200 Module Operation in Free Large Counter Mode

At a Glance
The use of the free large counter mode is especially recommended for axis monitoring or labeling
where the incoming position of each part has to be learned.

Basic Principle
The upcounting (or downcounting) starts as soon as the homing function is completed.
The enable function must be activated during the counting by:
 Setting to 1 the force_enable bit (%Qr.m.c.6)
 Setting to 1 the valid_enable bit (%QWr.m.c.0.2) when the IN_EN input is at the high level.
When the enable function is deactivated, the last value reported in the counting register is
maintained and the counter ignores the pulses applied to the IN_A input. However, it does not
ignore the preset condition.
In the free large counter mode, the counter must be preset at least one time to operate. The current
counter value is load with the preset_value each time the preset condition occurs.
The current counter can be recorded into the capture0 register when the preset condition occurs
or using the IN_CAP input.
The current counter value can be stored into the capture1 register using the IN_CAP input.
For further information, you may see the synchronization function (see page 69) and the capture
function (see page 76).
In the free large counter mode, the counting register is updated at 1 ms intervals.

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Counting Configurations
In this mode, the user may select one of the following counting configurations:
 A = Up, B = Down (default configuration)
 A = Impulse, B = Direction
 Normal Quadrature X1
 Normal Quadrature X2
 Normal Quadrature X4
 Reverse Quadrature X1
 Reverse Quadrature X2
 Reverse Quadrature X4
The following table shows the upcounting and downcounting principle according to the selected
configuration:

Selected configuration Upcounting condition Downcounting condition

A = Up, B = Down Rising edge at the IN_A input. Rising edge at the IN_B input.
A = Impulse, B = Direction Rising edge at the IN_A input and low Rising edge at the IN_A input and high state at
state at the IN_B input. the IN_B input.
Normal Quadrature X1 Rising edge at the IN_A input and low Falling edge at the IN_A input and low state at
state at the IN_B input. the IN_B input
Normal Quadrature X2 Rising edge at the IN_A input and low Falling edge at the IN_A input and low state at
state at the IN_B input. the IN_B input.
Falling edge at the IN_A input and high Rising edge at the IN_A input and high level at
state at the IN_B input. the IN_B input.
Normal Quadrature X4 Rising edge at the IN_A input and low Falling edge at the IN_A input and low state at
state at the IN_B input. the IN_B input.
High state at the IN_A input and rising Low state at the IN_A input and rising edge at
edge at the IN_B input. the IN_B input.
Falling edge at the IN_A input and high Rising edge at the IN_A input and high level at
state at the IN_B input. the IN_B input.
Low state at the IN_A input and falling High state at the IN_A input and falling edge at
edge at the IN_B input. the IN_B input.
Reserve Quadrature X1 Falling edge at the IN_A input and low Rising edge at the IN_A input and low state at
state at the IN_B input. the IN_B input.
Reserve Quadrature X2 Falling edge at the IN_A input and low Rising edge at the IN_A input and low state at
state at the IN_B input. the IN_B input.
Rising edge at the IN_A input and high Falling edge at the IN_A input and high state
level at the IN_B input. at the IN_B input.

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Selected configuration Upcounting condition Downcounting condition

Reserve Quadrature X4 Falling edge at the IN_A input and low Rising edge at the IN_A input and low state at
state at the IN_B input. the IN_B input.
Low state at the IN_A input and rising High state at the IN_A input and rising edge at
edge at the IN_B input. the IN_B input.
Rising edge at the IN_A input and high Falling edge at the IN_A input and high state
level at the IN_B input. at the IN_B input.
High state at the IN_A input and falling Low state at the IN_A input and falling edge at
edge at the IN_B input. the IN_B input.

Homing Function
This function allows to record the current_counter_value register in the capt_0_val
register and/or to set the current_counter_value register to the user-predefined parameter
preset_value.
The value defined by the user as preset_value is contained in the %MDr.m.c.4 word.
The user may change this value by specifying the value of this word:
 In the ajust screen
 In the application, by using the WRITE_PARAM(IODDT_VAR1) Function. IODDT_VAR1 is of the
type T_SIGNED_CPT_BMX.
For further information, you may see the homing function (see page 71) and the capture function
(see page 76).
The module configuration enables you to select the following homing conditions:
 Rising edge of the IN_SYNC input (default)
 Rising edge of the IN_REF input
 Rising edge of the IN_SYNC input at the IN_REF input’s high level:

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 First rising edge of the IN_SYNC input and high level at the IN_REF input

 First rising edge of the IN_SYNC input and low level at the IN_REF input

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Operation
The trend diagram below illustrates the counting process for a free large counter in the
configuration by default:

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Behavior at the Counting Limits

When the upper or lower limit is exceeded, the counter behaves differently according to its
configuration.
In the lock on limits default configuration, the counting register maintains the limit value once it has
been reached and the counting validity bit changes to 0 until the next preset condition occurs:

NOTE: Overflow or underflow is indicated by two bits LOW_LIMIT and HIGH_LIMIT until the
application reloads the counting value predefined by the user (force_ref bit set to 1 or preset
condition true). The upcounting or downcounting may therefore resume.
In the rollover configuration, the counting register switches to the opposite limit value when one of
the two limits is exceeded:

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Slack Delete
In the free large counter mode, the counter may apply a hysteresis if the rotation is inverted. The
hysteresis parameter configured with the adjust screen defines the number of points that are
not acknowledged by the counter during the rotation inversion. This aims to take into account the
slack between the encoder/motor axis and the mechanical axis (e.g. an encoder measuring the
position of a mat).
This behavior is described in the following figure:

The value defined by the user as the Hysteresis (slack) value is contained in the
%MWr.m.c.9 word. The user may change this value by specifying the value of this word (this value
is from 0 to 255):
 In the adjust screen
 In the application by using the WRITE_PARAM(IODDT_VAR1) Function. IODDT_VAR1 is of the
type T_SIGNED_CPT_BMX.

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Counter Status Bits in Free Large Counter Mode

The table below shows the composition of the counter’s %IWr.m.c.0 status word in free large
counter mode:

Bit Label Description

%IWr.m.c.0.1 MODULO_FLAG The bit status changes in the rollover mode.
The bit is set to 1 when the counter rollovers its limits
(-2,147,483,648 or +2,147,483,647).
The bit is reset to 0 when the command MODULO_RESET
(%Qr.m.c.9) is received (rising edge of the MODULO_RESET bit).
%IWr.m.c.0.2 SYNC_REF_FLAG The bit is set to 1 when the counter have been set to the preset
value and (re)started.
The bit is reset to 0 when the command SYNC_RESET
(%Qr.m.c.8) is received (rising edge of the SYNC_RESET bit).
%IWr.m.c.0.3 VALIDITY Validity bit is used to indicate that the counter current value and
compare status registers contain valid data.
If the bit is set to 1, the data is valid.
If the bit is set to 0, the data is not valid.
%IWr.m.c.0.4 HIGH_LIMIT The bit status changes in the lock on limits mode.
The bit is set to 1 when the counter reaches +2,147,483,647.
The bit is reset to 0 when the counter presets or resets.
%IWr.m.c.0.5 LOW_LIMIT The bit status changes in the lock on limits mode.
The bit is set to 1 when the counter reaches -2,147,483,648.
The bit is reset to 0 when the counter presets or resets.

Type of the IODDT

In this mode, the type of the IODDT must be T_SIGNED_CPT_BMX.

Operating Limits
The shortest pulse applied to the IN_SYNC input is 100 μs.
The maximum homing event frequency is once every 5 ms.
The counter value is between -2,147,483,648 and +2,147,483,647.
NOTE: You have to check the validity bit (%IWr.m.c.0.3) before taking into account the
numerical values such as the counter and the capture registers. Only the validity bit at the high
level (set to 1) guarantees that the mode will operate correctly within the limits.

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BMX EHC 0200 Module Operation in Pulse Width Modulation Mode

At a Glance
In this operating mode, the module uses an internal clock generator to supply a periodic signal at
the module’s Q0 output. Only the Q0 output is concerned by this mode as the Q1 output is
independent of this mode.

Basic Principle
The output_block_0_enable command bit (%Qr.m.c.2) must be set to 1 in order to enable a
modulation at the Q0 output.
The active validation function enables the operation of the internal clock generator that produces
the output signal to be validated.
The active synchronization function enables the output signal to be synchronized by resetting to 0
the internal clock generator.
The wave form of the output signal depends on:
 The pwm_frequency value (%QDr.m.c.6): it defines the frequency from 0.1 Hz (value is
equal to 1) to 4 KHz (value is equal to 40,000), in increments of 0.1 Hz
 The pwm_duty value (%QWr.m.c.8): it defines the duty cycle from 5 % (value is equal to 1) to
95 % (value is equal to 19) in increments of 5 %.
The following figure shows the operation of the module in the pulse width modulation mode:

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Counter Status Bits in Pulse Width Modulation Mode

The table below shows the composition of the counter’s %IWr.m.c.0 status word in pulse width
modulation mode:

Bit Label Description

%IWr.m.c.0.3 VALIDITY Validity bit is used to indicate that the output data (frequency and duty
cycle) unter current value and compare status registers contain valid data.
If the bit is set to 1, the data is valid.
If the bit is set to 0, the data is not valid.
%IWr.m.c.0.4 HIGH_LIMIT The output frequency or the duty cycle is out of range (high limit).
%IWr.m.c.0.5 LOW_LIMIT The output frequency or the duty cycle is out of range (low limit).

Type of the IODDT

In this mode, the type of the IODDT must be T_UNSIGNED_CPT_BMX.

Operating Limits
The maximum output frequency is 4 kHz.
The maximum frequency that can be applied to the IN_SYNC input is 1 pulse every 5 ms.
The Q0 driver is "source type", therefore a load resistance is required to switch the output signal
Q0 to 0 V using the correct frequency. We recommend a load resistance of 250 Ω.
The allowed duty cycle varies according to the frequency of the Q0 output.
The table below shows duty cycle values according to the selected frequency. These values must
be observed for normal operation:
Frequency Duty cycle
0.1... 250 Hz 95% - 5%
251... 500 Hz 90% - 10%
501... 1 000 Hz 80% - 20%
1001... 1 500 Hz 70% - 30%
1501... 2 000 Hz 60% - 40%
2 001... 2 500 Hz 50%
2 5001... 4 000 Hz 50% (See following note )

NOTE: If the frequency and the duty cycle do not respect this table, the output and the validity
bit (%IWr.m.c.0.3) remains in the low state.
NOTE: You have to check the validity bit (%IWr.m.c.0.3) before taking into account the
numerical values such as the counter and the capture registers. Only the validity bit at the high
level (set to 1) guarantees that the mode will operate correctly within the limits.
NOTE: From 2501 Hz to 4000 Hz, the 50% ratio is not guaranteed on output.

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Part IV
Counting Module BMX EHC 0200 Software Implementation

Counting Module BMX EHC 0200 Software Implementation

Subject of this Part

This part describes the software implementation and functions of the BMX EHC 0200 counting
module.
NOTE: This part concerns also the hardened module BMX EHC 0200H.

What Is in This Part?

This part contains the following chapters:
Chapter Chapter Name Page
7 Software Implementation Methodology for BMX EHC xxxx Counting Modules 111
8 Accessing the Functional Screens of the BMX EHC xxxx Counting Modules 113
9 Configuration of the BMX EHC 0200 Counting Modules 119
10 BMX EHC xxxx Counting Module Settings 143
11 Debugging the BMX EHC 0200 Counting Modules 151
12 Display of BMX EHC xxxx Counting Module Error 167
13 The Language Objects of the Counting Function 173

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Software Implementation Methodology for Counting Modules
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Chapter 7
Software Implementation Methodology for BMX EHC xxxx Counting Modules

Software Implementation Methodology for BMX EHC xxxx

Counting Modules

Installation Methodology

At a Glance
The software installation of the BMX EHC **** counting modules is carried out from the various
Control Expert editors:
 in offline mode,
 in online mode.
The following order of installation phases is recommended but it is possible to change the order of
certain phases (for example, starting with the configuration phase).

Installation Phases
The following table shows the different installation phases:

Phase Description Mode

Declaration of Declaration of IODDT-type variables for the application-specific Offline(1)
variables modules and variables of the project.
Programming Project programming. Offline(1)
Configuration Declaration of modules. Offline
Module channel configuration
Entering the configuration parameters Offline(1)
Note: All the parameters are configurable online except the event
parameter.
Association Association of IODDTs with the channels configured (variable editor) Offline(1)

Build Project generation (analysis and editing of links) Offline

Transfer Transfer project to PLC Online
Adjustment/ Debug project from debug screens, animation tables Online
Debugging Debugging the program and adjustment parameters
Documentation Building documentation file and printing miscellaneous information Online(1)
relating to the project

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Phase Description Mode

Operation/ Displaying miscellaneous information necessary for supervisory Online
Diagnostic control of the project
Diagnostics of project and modules

Key:
(1) These various phases can also be performed in online mode

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Screens
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Chapter 8
Accessing the Functional Screens of the BMX EHC xxxx Counting Modules

Accessing the Functional Screens of the BMX EHC xxxx

Counting Modules

Subject of this Chapter

This chapter describes the various functional screens of the BMX EHC •••• counting modules to
which the user has access.

What Is in This Chapter?

This chapter contains the following topics:
Topic Page
Accessing the Functional Screens of the BMX EHC 0200 Counting Modules 114
Description of the Counting Module Screens 116

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Screens

Accessing the Functional Screens of the BMX EHC 0200 Counting Modules

At a Glance
This section describes how to access the functional screens of the BMX EHC 0200 counting
modules.

Procedure
To access the screens, execute the following actions:

Step Action
1 Expand the Configuration directory in the project browser.
Result: the following screen appears:

2 Double-click on the PLC Bus directory.

Result: the following screen appears:

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Step Action
3 Double-click on the counting module.
Result: the module screen appears:

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Description of the Counting Module Screens

Introduction
The various available screens for the BMX EHC 0200 counting modules are:
 Configuration screen
 Adjust screen
 Debug screen (can only be accessed in online mode)
 Faults screen (can only be accessed in online mode)

Description of the Screens

The following diagram presents the counting modules configuration screen.

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The following table presents the parts of the various screens.

Number Element Function

1 Tabs The tab in the foreground indicates the mode in progress (Configuration in this
example). Every mode can be selected using the respective tab. The available
modes are:
 Configuration
 Adjust
 Debug (which can only be accessed in online mode)
 Faults (which can only be accessed in online mode)

2 Heading area Provides an abbreviation as a reminder of the module and module status in online
mode (LEDs).
3 Module area Is used:
 By clicking on the reference number, to display the tabs:
 Description which gives the characteristics of the device.
 I/O Objects or Device DDT depending on the I/O data type selected at
module insertion in the Control Expert project.
Channel area Is used:
 By clicking on the channel (Counter) number, to display the tabs:
 Configuration which gives the characteristics of the channel. By default in
topological I/O data model, no function is configured. By default in device
DDT data model, all channels are Frequency Mode configured and a
channel can not be set to None.
 Adjust: consists of various sections to be completed (parameter values),
displayed according to the choice of counting function.
 Debug: displays the status of the inputs and outputs, as well as the various
parameters of the current counting function (in online mode).
 Fault which shows the device errors (in online mode).

4 General parameters Allows you to select the counting function and the task associated with the channel:
area  Function: counting function among those available for the modules involved.
Depending on this choice, the headings of the configuration area may differ.
 Task: defines the task through which the channel's implicit exchange objects
will be exchanged.
These choices are only possible in offline mode.
5 Parameters in This area has various functionalities which depend upon the current mode:
progress area  Configuration: is used to configure the channel parameters.
 Adjust: consists of various sections to be completed (parameter values),
displayed according to the choice of counting function.
 Debug: displays the status of the inputs and outputs, as well as the various
parameters of the current counting function.
 Fault: displays the errors that have occurred on the counting channels.

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Configuration of the Counting Modules
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Chapter 9
Configuration of the BMX EHC 0200 Counting Modules

Configuration of the BMX EHC 0200 Counting Modules

Subject of this Chapter

This chapter deals with the configuration of the BMX EHC 0200 counting modules. This
configuration can be accessed from the Configuration tab on the functional screens of
BMX EHC 0200 (see page 116) modules.

What Is in This Chapter?

This chapter contains the following sections:
Section Topic Page
9.1 Configuration Screen for BMX EHC xxxx Counting Modules 120
9.2 Configuration of Modes for the BMX EHC 0200 Module 123

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Section 9.1
Configuration Screen for BMX EHC xxxx Counting Modules

Configuration Screen for BMX EHC xxxx Counting Modules

Configuration Screen for BMX EHC 0200 Counting Modules in a Modicon M340 Local
Rack

At a Glance
This section presents the configuration screen for BMX EHC 0200 counting modules.

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Illustration
The figure below presents the configuration screen for the BMX EHC 0200 module in modulo loop
counter mode:

NOTE: When adding a BMX EHC 0200 in a local rack the defaut function is Frequency mode

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Description of the Screen

The following table presents the various parts of the above screen:

Number Element Function

1 Tab The tab in the foreground indicates the current mode. The current mode is
therefore the configuration mode in this example.
2 Label field This field contains the name of each variable that may be configured. This field may
not be modified.
3 Symbol field This field contains the address of the variable in the application. This field may not
be modified.
4 Value field If this field has a downward pointing arrow, you can select the value of each
variable from various possible values in this field. The various values can be
accessed by clicking on the arrow. A drop-down menu containing all the possible
values is displayed and the user may then select the required value of the variable.
5 Unit field This field contains the unit of each variable that may be configured. This field may
not be modified.

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Section 9.2
Configuration of Modes for the BMX EHC 0200 Module

Configuration of Modes for the BMX EHC 0200 Module

Subject of this Section

This section deals with the configuration of the modes of the BMX EHC 0200 counting modules.

What Is in This Section?

This section contains the following topics:
Topic Page
Frequency Mode Configuration 124
Event Counting Mode Configuration 126
Period Measuring Mode Configuration 128
Ratio Mode Configuration 130
One Shot Counter Mode Configuration 132
Modulo Loop Counter Mode Configuration 134
Free Large Counter Mode Configuration 137
Pulse Width Modulation Mode Configuration 140

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Frequency Mode Configuration

At a Glance
The configuration of a counting module is stored in the configuration constants (%KW).
The parameters r,m and c shown in the following tables represent the topologic addressing of the
module. Each parameter had the following signification:
 r: represents the rack number,
 m:represents the position of the module on the rack,
 c: represents the channel number.

Configuration Objects
The table below presents the frequency mode configurable elements.

Label Address in the Configurable values

configuration
Counting mode %KWr.m.c.2 Frequency mode. The value of the least significant byte of
(least significant byte) this word is 1.
IN_A input filter %KWr.m.c.3 The least significant byte can take the following values:
(least significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

Input power supply %KWr.m.c.2.8 General input/output fault (bit set to 0)

fault Local (bit set to 1)
Scale factor %KWr.m.c.6 Edit (value in the range 1...255)
(least significant byte)
Output block 0 %KWr.m.c.17 This word can take the following values:
 0: off,
 1: low counter,
 2: counter in a window,
 3: High counter,
 4: pulse = less than the lower threshold (LT),
 5: pulse = greater than the lower threshold (LT),
 6: pulse = less than the upper threshold (UT),
 7: pulse = greater than the upper threshold (UT).

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Label Address in the Configurable values

configuration
Output block 1 %KWr.m.c.19 This word can take the following values:
 0: off,
 1: low counter,
 2: counter in a window,
 3: High counter,
 4: pulse = less than the lower threshold (LT),
 5: pulse = greater than the lower threshold (LT),
 6: pulse = less than the upper threshold (UT),
 7: pulse = greater than the upper threshold (UT).

Polarity 0 %KWr.m.c.21.1 Polarity + (bit set to 0)

Polarity - (bit set to 1)
Polarity 1 %KWr.m.c.21.2 Polarity + (bit set to 0)
Polarity - (bit set to 1)
Fault recovery %KWr.m.c.21.0 Automatic reaction (bit set to 1)
Activated (bit set to 0)
Fallback 0 %KWr.m.c.21.3 None (bit set to 0)
With (bit set to 1)
Fallback 1 %KWr.m.c.21.4 None (bit set to 0)
With (bit set to 1)
Fallback value 0 %KWr.m.c.21.5 0 (bit set to 0)
1 (bit set to 1)
Fallback value 1 %KWr.m.c.21.6 0 (bit set to 0)
1 (bit set to 1)
Output power supply %KWr.m.c.2.9 General input/output fault (bit set to 0)
fault Offline (bit set to 1)
Pulse width 0 %KWr.m.c.18 Edit (value in the range 1...65535)
Pulse width 1 %KWr.m.c.20 Edit (value in the range 1...65535)
Event %KWr.m.c.0 Activated (if activated is selected, the entered event
Event number number is coded on the most significant byte of this word)
Deactivated (all bits of the most significant byte of this
word are set to 1)

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Event Counting Mode Configuration

At a Glance
The configuration of a counting module is stored in the configuration constants (%KW).
The parameters r,m and c shown in the following tables represent the topologic addressing of the
module. Each parameter had the following signification:
 r: represents the rack number,
 m:represents the position of the module on the rack,
 c: represents the channel number.

Configuration Objects
The table below presents the event counting mode configurable elements

Label Address in the configuration Configurable values

Counting mode %KWr.m.c.2 Event counting mode. The value of the least significant
(least significant byte) byte of this word is 2.
IN_A input filter %KWr.m.c.3 The least significant byte can take the following values:
(least significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

IN_SYNC input filter %KWr.m.c.4 The least significant byte can take the following values:
(least significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

Input power supply %KWr.m.c.2.8 General input/output fault (bit set to 0)

fault Local (bit set to 1)
Synchronization edge %KWr.m.c.10.8 Rising edge at IN_SYNC (bit set to 0)
Falling edge at IN_SYNC (bit set to 1)
Time base %KWr.m.c.7 This word can take the following values:
 0: 0.1 s,
 1: 1 s,
 2: 10 s,
 3: 1 min

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Label Address in the configuration Configurable values

Output block 0 %KWr.m.c.17 This word can take the following values:
 0: off,
 1: low counter,
 2: counter in a window,
 3: High counter,
 4: pulse = less than the lower threshold (LT),
 5: pulse = greater than the lower threshold (LT),
 6: pulse = less than the upper threshold (UT),
 7: pulse = greater than the upper threshold (UT).

Output block 1 %KWr.m.c.19 This word can take the following values:
 0: off,
 1: low counter,
 2: counter in a window,
 3: High counter,
 4: pulse = less than the lower threshold (LT),
 5: pulse = greater than the lower threshold (LT),
 6: pulse = less than the upper threshold (UT),
 7: pulse = greater than the upper threshold (UT).

Polarity 0 %KWr.m.c.21.1 Polarity + (bit set to 0)

Polarity - (bit set to 1)
Polarity 1 %KWr.m.c.21.2 Polarity + (bit set to 0)
Polarity - (bit set to 1)
Fault recovery %KWr.m.c.21.0 Automatic reaction (bit set to 1)
Activated (bit set to 0)
Fallback 0 %KWr.m.c.21.3 None (bit set to 0)
With (bit set to 1)
Fallback 1 %KWr.m.c.21.4 None (bit set to 0)
With (bit set to 1)
Fallback value 0 %KWr.m.c.21.5 0 (bit set to 0)
1 (bit set to 1)
Fallback value 1 %KWr.m.c.21.6 0 (bit set to 0)
1 (bit set to 1)
Output power supply %KWr.m.c.2.9 General input/output fault (bit set to 0)
fault Offline (bit set to 1)
Pulse width 0 %KWr.m.c.18 Edit (value in the range 1...65535)
Pulse width 1 %KWr.m.c.20 Edit (value in the range 1...65535)
Event %KWr.m.c.0 Activated (if activated is selected, the entered event
Event number number is coded on the most significant byte of this
word)
Deactivated (all bits of the most significant byte of this
word are set to 1)

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Period Measuring Mode Configuration

At a Glance
The configuration of a counting module is stored in the configuration constants (%KW).
The parameters r,m and c shown in the following tables represent the topologic addressing of the
module. Each parameter had the following signification:
 r: represents the rack number,
 m:represents the position of the module on the rack,
 c: represents the channel number.

Configuration Objects
The table below presents the period measuring mode configurable elements.

Label Address in the Configurable values

configuration
Counting mode %KWr.m.c.2 Period measuring mode. The value of the least
(least significant byte) significant byte of this word is 3.
IN_A input filter %KWr.m.c.3 The least significant byte can take the following values:
(least significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

IN_SYNC input filter %KWr.m.c.4 The least significant byte can take the following values:
(least significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

Input power supply %KWr.m.c.2.8 General input/output fault (bit set to 0)

fault Local (bit set to 1)
Resolution %KWr.m.c.8 The most significant byte can take the following values:
(most significant byte)  0: 1 μs,
 1: 100 μs,
 2: 1 ms.

Mode %KWr.m.c.8 The least significant byte can take the following values:
(least significant byte)  0: From one edge to the same edge at input IN_A,
 1: From one edge to the opposite edge at input IN_A.

Time out %KDr.m.c.14 0... 1 073 741 823

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Label Address in the Configurable values

configuration
Output block 0 %KWr.m.c.17 This word can take the following values:
 0: off,
 1: low counter,
 2: counter in a window,
 3: High counter,
 4: pulse = less than the lower threshold (LT),
 5: pulse = greater than the lower threshold (LT),
 6: pulse = less than the upper threshold (UT),
 7: pulse = greater than the upper threshold (UT).

Output block 1 %KWr.m.c.19 This word can take the following values:
 0: off,
 1: low counter,
 2: counter in a window,
 3: High counter,
 4: pulse = less than the lower threshold (LT),
 5: pulse = greater than the lower threshold (LT),
 6: pulse = less than the upper threshold (UT),
 7: pulse = greater than the upper threshold (UT).

Polarity 0 %KWr.m.c.21.1 Polarity + (bit set to 0)

Polarity - (bit set to 1)
Polarity 1 %KWr.m.c.21.2 Polarity + (bit set to 0)
Polarity - (bit set to 1)
Fault recovery %KWr.m.c.21.0 Automatic reaction (bit set to 1)
Activated (bit set to 0)
Fallback 0 %KWr.m.c.21.3 None (bit set to 0)
With (bit set to 1)
Fallback 1 %KWr.m.c.21.4 None (bit set to 0)
With (bit set to 1)
Fallback value 0 %KWr.m.c.21.5 0 (bit set to 0)
1 (bit set to 1)
Fallback value 1 %KWr.m.c.21.6 0 (bit set to 0)
1 (bit set to 1)
Output power supply %KWr.m.c.2.9 General input/output fault (bit set to 0)
fault Offline (bit set to 1)
Pulse width 0 %KWr.m.c.18 Edit (value in the range 1...65535)
Pulse width 1 %KWr.m.c.20 Edit (value in the range 1...65535)
Event %KWr.m.c.0 Activated (if activated is selected, the entered event
Event number number is coded on the most significant byte of this
word)
Deactivated (all bits of the most significant byte of this
word are set to 1)

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Ratio Mode Configuration

At a Glance
The configuration of a counting module is stored in the configuration constants (%KW).
The parameters r,m and c shown in the following tables represent the topologic addressing of the
module. Each parameter had the following signification:
 r: represents the rack number,
 m:represents the position of the module on the rack,
 c: represents the channel number.

Configuration Objects
The table below presents ratio mode configurable elements.

Label Address in the Configurable values

configuration
Counting mode %KWr.m.c.2 The least significant byte of this word can take the
(least significant byte) following values in this mode:
 4: ratio 1 mode,
 5: ratio 2 mode.

IN_A input filter %KWr.m.c.3 The least significant byte can take the following
(least significant byte) values:
 0: none,
 1: low,
 2: medium,
 3: high.

IN_B input filter %KWr.m.c.3 The most significant byte can take the following
(most significant byte) values:
 0: none,
 1: low,
 2: medium,
 3: high.

Input power supply fault %KWr.m.c.2.8 General input/output fault (bit set to 0)
Local (bit set to 1)
Scale factor %KWr.m.c.6 Edit (value in the range 1...255)
(least significant byte)
Absolute limit %KDr.m.c.12 Edit

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Label Address in the Configurable values

configuration
Output block 0 %KWr.m.c.17 This word can take the following values:
 0: off,
 1: low counter,
 2: counter in a window,
 3: High counter,
 4: pulse = less than the lower threshold (LT),
 5: pulse = greater than the lower threshold (LT),
 6: pulse = less than the upper threshold (UT),
 7: pulse = greater than the upper threshold (UT).

Output block 1 %KWr.m.c.19 This word can take the following values:
 0: off,
 1: low counter,
 2: counter in a window,
 3: High counter,
 4: pulse = less than the lower threshold (LT),
 5: pulse = greater than the lower threshold (LT),
 6: pulse = less than the upper threshold (UT),
 7: pulse = greater than the upper threshold (UT).

Polarity 0 %KWr.m.c.21.1 Polarity + (bit set to 0)

Polarity - (bit set to 1)
Polarity 1 %KWr.m.c.21.2 Polarity + (bit set to 0)
Polarity - (bit set to 1)
Fault recovery %KWr.m.c.21.0 Automatic reaction (bit set to 1)
Activated (bit set to 0)
Fallback 0 %KWr.m.c.21.3 None (bit set to 0)
With (bit set to 1)
Fallback 1 %KWr.m.c.21.4 None (bit set to 0)
With (bit set to 1)
Fallback value 0 %KWr.m.c.21.5 0 (bit set to 0)
1 (bit set to 1)
Fallback value 1 %KWr.m.c.21.6 0 (bit set to 0)
1 (bit set to 1)
Output power supply %KWr.m.c.2.9 General input/output fault (bit set to 0)
fault Offline (bit set to 1)
Pulse width 0 %KWr.m.c.18 Edit (value in the range 1...65535)
Pulse width 1 %KWr.m.c.20 Edit (value in the range 1...65535)
Event %KWr.m.c.0 Activated (if activated is selected, the entered event
Event number number is coded on the most significant byte of this
word)
Deactivated (all bits of the most significant byte of this
word are set to 1)

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One Shot Counter Mode Configuration

At a Glance
The configuration of a counting module is stored in the configuration constants (%KW).
The parameters r,m and c shown in the following tables represent the topologic addressing of the
module. Each parameter had the following signification:
 r: represents the rack number,
 m:represents the position of the module on the rack,
 c: represents the channel number.

Configuration Objects
The table below presents the one shot counter mode configurable elements

Label Address in the Configurable values

configuration
Counting mode %KWr.m.c.2 One shot counter mode. The value of the least significant
(least significant byte) byte of this word is 6.
IN_A input filter %KWr.m.c.3 The least significant byte can take the following values:
(least significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

IN_SYNC input filter %KWr.m.c.4 The least significant byte can take the following values:
(least significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

IN_EN input filter %KWr.m.c.4 The most significant byte can take the following values:
(most significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

Input power supply %KWr.m.c.2.8 General input/output fault (bit set to 0)

fault Local (bit set to 1)
Scale factor %KWr.m.c.6 Edit (value in the range 1...255)
(least significant byte)
Synchronization edge %KWr.m.c.10.8 Rising edge (bit set to 0)
Falling edge (bit set to 1)

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Label Address in the Configurable values

configuration
Output block 0 %KWr.m.c.17 This word can take the following values:
 0: off,
 1: low counter,
 2: counter in a window,
 3: High counter,
 4: pulse = less than the lower threshold (LT),
 5: pulse = greater than the lower threshold (LT),
 6: pulse = less than the upper threshold (UT),
 7: pulse = greater than the upper threshold (UT).

Output block 1 %KWr.m.c.19 This word can take the following values:
 0: off,
 1: low counter,
 2: counter in a window,
 3: High counter,
 4: pulse = less than the lower threshold (LT),
 5: pulse = greater than the lower threshold (LT),
 6: pulse = less than the upper threshold (UT),
 7: pulse = greater than the upper threshold (UT).

Polarity 0 %KWr.m.c.21.1 Polarity + (bit set to 0)

Polarity - (bit set to 1)
Polarity 1 %KWr.m.c.21.2 Polarity + (bit set to 0)
Polarity - (bit set to 1)
Fault recovery %KWr.m.c.21.0 Automatic reaction (bit set to 1)
Activated (bit set to 0)
Fallback 0 %KWr.m.c.21.3 None (bit set to 0)
With (bit set to 1)
Fallback 1 %KWr.m.c.21.4 None (bit set to 0)
With (bit set to 1)
Fallback value 0 %KWr.m.c.21.5 0 (bit set to 0)
1 (bit set to 1)
Fallback value 1 %KWr.m.c.21.6 0 (bit set to 0)
1 (bit set to 1)
Output power supply %KWr.m.c.2.9 General input/output fault (bit set to 0)
fault Offline (bit set to 1)
Pulse width 0 %KWr.m.c.18 Edit (value in the range 1...65535)
Pulse width 1 %KWr.m.c.20 Edit (value in the range 1...65535)
Event %KWr.m.c.0 Activated (if activated is selected, the entered event
Event number number is coded on the most significant byte of this word)
Deactivated (all bits of the most significant byte of this
word are set to 1)

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Modulo Loop Counter Mode Configuration

At a Glance
The configuration of a counting module is stored in the configuration constants (%KW).
The parameters r,m and c shown in the following tables represent the topologic addressing of the
module. Each parameter had the following signification:
 r: represents the rack number,
 m:represents the position of the module on the rack,
 c: represents the channel number.

Configuration Objects
The table below presents modulo loop counter mode configurable elements.

Label Address in the Configurable values

configuration
Counting mode %KWr.m.c.2 Modulo loop counter mode. The value of the least
(least significant byte) significant byte of this word is 7.
IN_A input filter %KWr.m.c.3 The least significant byte can take the following values:
(least significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

IN_A input filter %KWr.m.c.3 The most significant byte can take the following values:
(most significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

IN_SYNC input filter %KWr.m.c.4 The least significant byte can take the following values:
(least significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

IN_EN input filter %KWr.m.c.4 The most significant byte can take the following values:
(most significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

Input power supply %KWr.m.c.2.8 General input/output fault (bit set to 0)

fault Local (bit set to 1)

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Label Address in the Configurable values

configuration
Input mode %KWr.m.c.9 This word can take the following values:
 0: A = High, B = Low,
 1: A = Pulse, B = Direction,
 2: normal quadrature 1,
 3: normal quadrature 2,
 4: normal quadrature 4,
 5: inverse quadrature 1,
 6: inverse quadrature 2,
 7: inverse quadrature 4.

Scale factor %KWr.m.c.6 Edit (value in the range 1...255)

(least significant byte)
Synchronization edge %KWr.m.c.10 Rising edge (bit set to 0)
(most significant byte) Falling edge (bit set to 1)
Output block 0 %KWr.m.c.17 This word can take the following values:
 0: off,
 1: low counter,
 2: counter in a window,
 3: High counter,
 4: pulse = less than the lower threshold (LT),
 5: pulse = greater than the lower threshold (LT),
 6: pulse = less than the upper threshold (UT),
 7: pulse = greater than the upper threshold (UT).

Output block 1 %KWr.m.c.19 This word can take the following values:
 0: off,
 1: low counter,
 2: counter in a window,
 3: High counter,
 4: pulse = less than the lower threshold (LT),
 5: pulse = greater than the lower threshold (LT),
 6: pulse = less than the upper threshold (UT),
 7: pulse = greater than the upper threshold (UT).

Polarity 0 %KWr.m.c.21.1 Polarity + (bit set to 0)

Polarity - (bit set to 1)
Polarity 1 %KWr.m.c.21.2 Polarity + (bit set to 0)
Polarity - (bit set to 1)
Fault recovery %KWr.m.c.21.0 Automatic reaction (bit set to 1)
Activated (bit set to 0)
Fallback 0 %KWr.m.c.21.3 None (bit set to 0)
With (bit set to 1)
Fallback 1 %KWr.m.c.21.4 None (bit set to 0)
With (bit set to 1)

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Label Address in the Configurable values

configuration
Fallback value 0 %KWr.m.c.21.5 0 (bit set to 0)
1 (bit set to 1)
Fallback value 1 %KWr.m.c.21.6 0 (bit set to 0)
1 (bit set to 1)
Output power supply %KWr.m.c.2.9 General input/output fault (bit set to 0)
fault Offline (bit set to 1)
Pulse width 0 %KWr.m.c.18 Edit (value in the range 1...65535)
Pulse width 1 %KWr.m.c.20 Edit (value in the range 1...65535)
Event %KWr.m.c.0 Activated (if activated is selected, the entered event
Event number number is coded on the most significant byte of this
word)
Deactivated (all bits of the most significant byte of this
word are set to 1)

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Free Large Counter Mode Configuration

At a Glance
The configuration of a counting module is stored in the configuration constants (%KW).
The parameters r,m and c shown in the following tables represent the topologic addressing of the
module. Each parameter had the following signification:
 r: represents the rack number,
 m:represents the position of the module on the rack,
 c: represents the channel number.

Configuration Objects
The table below presents the free large counter mode configurable elements.

Label Address in the Configurable values

configuration
Counting mode %KWr.m.c.2 Free large counter mode. The value of the least
(least significant byte) significant byte of this word is 8.
IN_A input filter %KWr.m.c.3 The least significant byte can take the following values:
(least significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

IN_B input filter %KWr.m.c.3 The most significant byte can take the following values:
(most significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

IN_SYNC input filter %KWr.m.c.4 The least significant byte can take the following values:
(least significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

IN_EN input filter %KWr.m.c.4 The most significant byte can take the following values:
(most significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

IN_REF input filter %KWr.m.c.5 The least significant byte can take the following values:
(least significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

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Label Address in the Configurable values

configuration
IN_CAP input filter %KWr.m.c.5 The most significant byte can take the following values:
(most significant byte)  0: none,
 1: low,
 2: medium,
 3: high.

Input power supply %KWr.m.c.2.8 General input/output fault (bit set to 0)

fault Local (bit set to 1)
Input mode %KWr.m.c.9 This word can take the following values:
 0: A = High, B = Low
 1: A = Pulse, B = Direction
 2: normal quadrature 1
 3: normal quadrature 2
 4: normal quadrature 4
 5: inverse quadrature 1
 6: inverse quadrature 2
 7: inverse quadrature 4

Scale factor %KWr.m.c.6 Edit (value in the range 1...255)

(least significant byte)
Preset mode %KWr.m.c.10 The least significant byte can take the following values:
(least significant byte)  0: rising edge at IN_SYNC
 1: rising edge at IN_REF
 2: rising edge at IN_SYNC and IN_REF
 3: first rising edge at IN_SYNC and IN_REF at 1
 4: first rising edge at IN_SYNC and IN_REF at 0

Capture 0 settings %KWr.m.c.16.1 Preset condition (bit set to 0)

Falling edge at the IN_CAP input (bit set to 1)
Output block 0 %KWr.m.c.17 This word can take the following values:
 0: off,
 1: low counter,
 2: counter in a window,
 3: High counter,
 4: pulse = less than the lower threshold (LT),
 5: pulse = greater than the lower threshold (LT),
 6: pulse = less than the upper threshold (UT),
 7: pulse = greater than the upper threshold (UT).

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Label Address in the Configurable values

configuration
Output block 1 %KWr.m.c.19 This word can take the following values:
 0: off,
 1: low counter,
 2: counter in a window,
 3: High counter,
 4: pulse = less than the lower threshold (LT),
 5: pulse = greater than the lower threshold (LT),
 6: pulse = less than the upper threshold (UT),
 7: pulse = greater than the upper threshold (UT).

Polarity 0 %KWr.m.c.21.1 Polarity + (bit set to 0)

Polarity - (bit set to 1)
Polarity 1 %KWr.m.c.21.2 Polarity + (bit set to 0)
Polarity - (bit set to 1)
Fault recovery %KWr.m.c.21.0 Automatic reaction (bit set to 1)
Activated (bit set to 0)
Fallback 0 %KWr.m.c.21.3 None (bit set to 0)
With (bit set to 1)
Fallback 1 %KWr.m.c.21.4 None (bit set to 0)
With (bit set to 1)
Fallback value 0 %KWr.m.c.21.5 0 (bit set to 0)
1 (bit set to 1)
Fallback value 1 %KWr.m.c.21.6 0 (bit set to 0)
1 (bit set to 1)
Output power supply %KWr.m.c.2.9 General input/output fault (bit set to 0)
fault Offline (bit set to 1)
Pulse width 0 %KWr.m.c.18 Edit (value in the range 1...65535)
Pulse width 1 %KWr.m.c.20 Edit (value in the range 1...65535)
Event %KWr.m.c.0 Activated (if activated is selected, the entered event
Event number number is coded on the most significant byte of this
word)
Deactivated (all bits of the most significant byte of this
word are set to 1)

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Pulse Width Modulation Mode Configuration

At a Glance
The configuration of a counting module is stored in the configuration constants (%KW).
The parameters r,m and c shown in the following tables represent the topologic addressing of the
module. Each parameter had the following signification:
 r: represents the rack number,
 m:represents the position of the module on the rack,
 c: represents the channel number.

Configuration Objects
The table below presents the pulse width modulation mode configurable elements.

Label Address in the Configurable values

configuration
Counting mode %KWr.m.c.2 Pulse width modulation mode. The value of the least
(least significant byte) significant byte of this word is 9.
IN_SYNC input filter %KWr.m.c.4 The least significant byte can take the following
(least significant byte) values:
 0: none,
 1: low,
 2: medium,
 3: high.

Synchronization edge %KWr.m.c.10.8 Rising edge at IN_SYNC (bit set to 0)

Falling edge at IN_SYNC (bit set to 1)
IN_EN input filter %KWr.m.c.4 The most significant byte can take the following
(most significant byte) values:
 0: none,
 1: low,
 2: medium,
 3: high.

Input power supply %KWr.m.c.2.8 General input/output fault (bit set to 0)

fault Local (bit set to 1)
Polarity 0 %KWr.m.c.21.1 Polarity + (bit set to 0)
Polarity - (bit set to 1)
Polarity 1 %KWr.m.c.21.2 Polarity + (bit set to 0)
Polarity - (bit set to 1)
Fault recovery %KWr.m.c.21.0 Automatic reaction (bit set to 1)
Activated (bit set to 0)
Fallback 0 %KWr.m.c.21.3 None (bit set to 0)
With (bit set to 1)

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Label Address in the Configurable values

configuration
Fallback 1 %KWr.m.c.21.4 None (bit set to 0)
With (bit set to 1)
Fallback value 0 %KWr.m.c.21.5 0 (bit set to 0)
1 (bit set to 1)
Fallback value 1 %KWr.m.c.21.6 0 (bit set to 0)
1 (bit set to 1)
Output power supply %KWr.m.c.2.9 General input/output fault (bit set to 0)
fault Offline (bit set to 1)
Event %KWr.m.c.0 Activated (if activated is selected, the entered event
Event number number is coded on the most significant byte of this
word)
Deactivated (all bits of the most significant byte of this
word are set to 1)

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 Modicon X80
Counting Module Settings
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Chapter 10
BMX EHC xxxx Counting Module Settings

BMX EHC xxxx Counting Module Settings

Subject of this Chapter

This chapter deals with the possible settings for the counting modes of the BMX EHC •••• modules.
These settings can be accessed from the Configuration tab on the functional screens of
BMX EHC •••• modules (see page 116).

What Is in This Chapter?

This chapter contains the following topics:
Topic Page
Adjust Screen for BMX EHC 0200 Counting Modules 144
Setting the Preset Value 146
Setting the Calibration Factor 147
Modulo Adjust 148
Setting the Hysteresis Value 149

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Counting Module Settings

Adjust Screen for BMX EHC 0200 Counting Modules

At a Glance
This section presents the adjust screen for BMX EHC 0200 counting modules.

Illustration
The figure below presents the adjust screen for the BMX EHC 0200 module in modulo loop counter
mode:

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 Counting Module Settings

Description of the Screen

The following table presents the various parts of the above screen:

Number Element Function

1 Label field This field contains the name of each variable that may be adjusted. This field may
not be modified and can be accessed in both local and online modes.
2 Tab The tab in the foreground indicates the current mode. The current mode is
therefore the adjust mode in this example.
3 Symbol field This field contains the mnemonics of the variable. This field may not be modified
and can be accessed in both offline and online modes.
4 Initial value field This field displays the value of the variable that the user has adjusted in offline
mode. This field is only accessible in online mode.
5 Value field The function of this field depends on the mode in which the user is working:
 In offline mode: this field is used to adjust the variable.
 In online mode: this field is used to display the current value of the variable.

6 Unit field This field contains the unit of each variable that may be configured. This field may
not be modified and can be accessed in both offline and online modes.

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Counting Module Settings

Setting the Preset Value

Introduction
The preset value concerns the following counting modes:
 for the BMX EHC 0200 module:
 one shot counter mode
 free large counter mode

Description
The following table shows the preset value setting:

Number Address in the Value Default value

configuration
Preset value %MDr.m.c.12 (Low) Edit 0

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Setting the Calibration Factor

Introduction
The calibration factor concerns the frequency and ratio modes for the BMX EHC 0200 .

Description
The following table shows the calibration factor setting:

Number Address in the Value Default value

configuration
Calibration %MWr.m.c.14 Edit 0
factor

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Counting Module Settings

Modulo Adjust

Introduction
The modulo concerns the modulo loop counter modes for the counting modules BMX EHC ****.

Description
The following table shows the modulo adjust:

Number Address in the configuration Value Default value

Modulo %MDx.y.v.10 (Low) Edit 0xFFFF

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 Counting Module Settings

Setting the Hysteresis Value

Introduction
The hysteresis value concerns free large counter mode for module BMX EHC 0200.

Description
The following table shows the setting for the hysteresis value:

Number Address in the Value Default value

configuration
Hysteresis %MWr.m.c.9 Edit 0
(release value)

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Counting Module Settings

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 Modicon X80
Debugging the Counting Modules
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Chapter 11
Debugging the BMX EHC 0200 Counting Modules

Debugging the BMX EHC 0200 Counting Modules

Subject of this Chapter

This chapter deals with the debugging settings applicable to BMX EHC 0200 modules. These
settings can be accessed from the Debug tab on the functional screens of the BMX EHC 0200
(see page 114) modules.

What Is in This Chapter?

This chapter contains the following sections:
Section Topic Page
11.1 Debug Screen for BMX EHC xxxx Counting Modules 152
11.2 BMX EHC 0200 Module Debugging 155

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Section 11.1
Debug Screen for BMX EHC xxxx Counting Modules

Debug Screen for BMX EHC xxxx Counting Modules

Debug Screen for BMX EHC xxxx Counting Modules

At a Glance
This section presents the debug screen for BMX EHC •••• counting modules. A module’s debug
screen can only be accessed in online mode.

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Illustration
The figure below presents the debug screen for the BMX EHC 0200 module in modulo loop
counter mode:

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Description of the Screen

The following table presents the various parts of the above screen:

Number Element Function

1 Reference field This field contains the address of the variable in the application. This field may not
be modified.
2 Label field This field contains the name of each variable that may be configured. This field may
not be modified.
3 Tab The tab in the foreground indicates the current mode. The current mode is
therefore the debug mode in this example.
4 Symbol field This field contains the mnemonics of the variable. This field may not be modified.
5 Value field If the field has a downward pointing arrow, you can select the value of each
variable from various possible values in this field. The various values can be
accessed by clicking on the arrow. A drop-down menu containing all the possible
values is displayed and the user may then select the required value of the variable.
If there is no downward pointing arrow, this field simply displays the current value
of the variable.

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Section 11.2
BMX EHC 0200 Module Debugging

BMX EHC 0200 Module Debugging

Subject of this Section

This section deals with the debugging of the BMX EHC 0200 counting module modes.

What Is in This Section?

This section contains the following topics:
Topic Page
Frequency Mode Debugging 156
Event Counting Mode Debugging 157
Period Measuring Mode Debugging 158
Ratio Mode Debugging 159
One Shot Counter Mode Debugging 160
Modulo Loop Counter Mode Debugging 161
Free Large Counter Mode Debugging 163
Pulse Width Modulation Mode Debugging 165

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Frequency Mode Debugging

At a Glance
The table below presents the frequency mode debugging elements:

Label Language object Type

Frequency value %IDr.m.c.2 Digital
Frequency valid %IWr.m.c.0.3 Binary
Frequency low %IWr.m.c.1.0 Binary
Frequency in window %IWr.m.c.1.1 Binary
Frequency high %IWr.m.c.1.2 Binary
Frequency in high limit %IWr.m.c.0.4 Binary
Input A state %Ir.m.c.4 Binary
Output 0 state %Ir.m.c.0 Binary
Output 0 cmd %Qr.m.c.0 Binary
Output 1 state %Ir.m.c.1 Binary
Output 1 cmd %Qr.m.c.1 Binary
Output latch 0 state %Ir.m.c.2 Binary
Output latch 0 enable %Qr.m.c.2 Binary
Output latch 1 state %Ir.m.c.3 Binary
Output latch 1 enable %Qr.m.c.3 Binary
Low threshold value %QDr.m.c.2 Digital
High threshold value %QDr.m.c.4 Digital
Compare enable %QWr.m.c.0.5 Binary
Compare suspend %QWr.m.c.0.6 Binary

For a description of each language object refer to T_UNSIGNED_CPT_BMX IODDT

(see page 185).

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Event Counting Mode Debugging

At a Glance
The table below presents the event counting mode debugging elements:

Label Language object Type

Counter value %IDr.m.c.2 Digital
Counter valid %IWr.m.c.0.3 Binary
Counter low %IWr.m.c.1.0 Binary
Counter in window %IWr.m.c.1.1 Binary
Counter high %IWr.m.c.1.2 Binary
Counter in low limit %IWr.m.c.0.5 Binary
Counter in high limit %IWr.m.c.0.4 Binary
Input A state %Ir.m.c.4 Binary
Input SYNC state %Ir.m.c.6 Binary
SYNC enable %QWr.m.c.0.0 Binary
SYNC force %Qr.m.c.4 Binary
SYNC state %IWr.m.c.0.2 Binary
SYNC reset %Qr.m.c.8 Binary
Output 0 state %Ir.m.c.0 Binary
Output 0 cmd %Qr.m.c.0 Binary
Output 1 state %Ir.m.c.1 Binary
Output 1 cmd %Qr.m.c.1 Binary
Output latch 0 state %Ir.m.c.2 Binary
Output latch 0 enable %Qr.m.c.2 Binary
Output latch 1 state %Ir.m.c.3 Binary
Output latch 1 enable %Qr.m.c.3 Binary
Low threshold value %QDr.m.c.2 Digital
High threshold value %QDr.m.c.4 Digital
Compare enable %QWr.m.c.0.5 Binary
Compare suspend %QWr.m.c.0.6 Binary

For a description of each language object refer to T_UNSIGNED_CPT_BMX IODDT

(see page 185).

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Period Measuring Mode Debugging

At a Glance
The table below presents the period measuring mode debugging elements:

Label Language object Type

Period value %IDr.m.c.2 Digital
Period valid %IWr.m.c.0.3 Binary
Period low %IWr.m.c.1.0 Binary
Period in window %IWr.m.c.1.1 Binary
Period high %IWr.m.c.1.2 Binary
Period in low limit %IWr.m.c.0.5 Binary
Period in high limit %IWr.m.c.0.4 Binary
Input A state %Ir.m.c.4 Binary
Input SYNC state %Ir.m.c.6 Binary
SYNC enable %QWr.m.c.0.0 Binary
SYNC force %Qr.m.c.4 Binary
SYNC state %IWr.m.c.0.2 Binary
SYNC reset %Qr.m.c.8 Binary
Output 0 state %Ir.m.c.0 Binary
Output 0 cmd %Qr.m.c.0 Binary
Output 1 state %Ir.m.c.1 Binary
Output 1 cmd %Qr.m.c.1 Binary
Output latch 0 state %Ir.m.c.2 Binary
Output latch 0 enable %Qr.m.c.2 Binary
Output latch 1 state %Ir.m.c.3 Binary
Output latch 1 enable %Qr.m.c.3 Binary
Low threshold value %QDr.m.c.2 Digital
High threshold value %QDr.m.c.4 Digital
Compare enable %QWr.m.c.0.5 Binary
Compare suspend %QWr.m.c.0.6 Binary

For a description of each language object refer to T_UNSIGNED_CPT_BMX IODDT

(see page 185).

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Ratio Mode Debugging

At a Glance
The table below presents the ratio mode debugging elements:

Label Language object Type

Ratio value %IDr.m.c.2 Digital
Ratio valid %IWr.m.c.0.3 Binary
Ratio low %IWr.m.c.1.0 Binary
Ratio in window %IWr.m.c.1.1 Binary
Ratio high %IWr.m.c.1.2 Binary
Ratio in low limit %IWr.m.c.0.5 Binary
Ratio in high limit %IWr.m.c.0.4 Binary
Input A state %Ir.m.c.4 Binary
Input B state %Ir.m.c.5 Binary
Output 0 state %Ir.m.c.0 Binary
Output 0 cmd %Qr.m.c.0 Binary
Output 1 state %Ir.m.c.1 Binary
Output 1 cmd %Qr.m.c.1 Binary
Output latch 0 state %Ir.m.c.2 Binary
Output latch 0 enable %Qr.m.c.2 Binary
Output latch 1 state %Ir.m.c.3 Binary
Output latch 1 enable %Qr.m.c.3 Binary
Low threshold value %QDr.m.c.2 Digital
High threshold value %QDr.m.c.4 Digital
Compare enable %QWr.m.c.0.5 Binary
Compare suspend %QWr.m.c.0.6 Binary

For a description of each language object refer to T_SIGNED_CPT_BMX IODDT (see page 185).

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One Shot Counter Mode Debugging

At a Glance
The table below presents the one shot counter mode debugging elements:

Label Language object Type

Counter value %IDr.m.c.2 Digital
Counter valid %IWr.m.c.0.3 Binary
Counter low %IWr.m.c.1.0 Binary
Counter in window %IWr.m.c.1.1 Binary
Counter high %IWr.m.c.1.2 Binary
RUN %IWr.m.c.0.0 Binary
Input A state %Ir.m.c.4 Binary
Input SYNC state %Ir.m.c.6 Binary
SYNC enable %QWr.m.c.0.0 Binary
SYNC force %Qr.m.c.4 Binary
SYNC state %IWr.m.c.0.2 Binary
SYNC reset %Qr.m.c.8 Binary
Input EN %Ir.m.c.7 Binary
EN enable %QWr.m.c.0.2 Binary
Counter enable %Qr.m.c.6 Binary
Output 0 state %Ir.m.c.0 Binary
Output 0 cmd %Qr.m.c.0 Binary
Output 1 state %Ir.m.c.1 Binary
Output 1 cmd %Qr.m.c.1 Binary
Output latch 0 state %Ir.m.c.2 Binary
Output latch 0 enable %Qr.m.c.2 Binary
Output latch 1 state %Ir.m.c.3 Binary
Output latch 1 enable %Qr.m.c.3 Binary
Low threshold value %QDr.m.c.2 Digital
High threshold value %QDr.m.c.4 Digital
Compare enable %QWr.m.c.0.5 Binary
Compare suspend %QWr.m.c.0.6 Binary

For a description of each language object refer to T_UNSIGNED_CPT_BMX IODDT

(see page 185).

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Modulo Loop Counter Mode Debugging

At a Glance
The table below presents the modulo loop counter mode debugging elements:

Label Language object Type

Counter value %IDr.m.c.2 Digital
Counter valid %IWr.m.c.0.3 Binary
Counter low %IWr.m.c.1.0 Binary
Counter in window %IWr.m.c.1.1 Binary
Counter high %IWr.m.c.1.2 Binary
Counter in low limit %IWr.m.c.0.5 Binary
Counter in high limit %IWr.m.c.0.4 Binary
Capture value %IDr.m.c.4 Digital
Capture low %IWr.m.c.1.3 Binary
Capture in window %IWr.m.c.1.4 Binary
Capture high %IWr.m.c.1.5 Binary
Capture enable %QWr.m.c.0.3 Binary
Input A state %Ir.m.c.4 Binary
Input B state %Ir.m.c.5 Binary
Input SYNC state %Ir.m.c.6 Binary
SYNC enable %QWr.m.c.0.0 Binary
SYNC force %Qr.m.c.4 Binary
SYNC state %IWr.m.c.0.2 Binary
SYNC reset %QWr.m.c.8 Binary
Input EN %Ir.m.c.7 Binary
EN enable %QWr.m.c.0.2 Binary
Counter enable %Qr.m.c.6 Binary
Output 0 state %Ir.m.c.0 Binary
Output 0 cmd %Qr.m.c.0 Binary
Output 1 state %Ir.m.c.1 Binary
Output 1 cmd %Qr.m.c.1 Binary
Counter reset %Qr.m.c.7 Binary
Output latch 0 state %Ir.m.c.2 Binary
Output latch 0 enable %Qr.m.c.2 Binary
Output latch 1 state %Ir.m.c.3 Binary

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Label Language object Type

Output latch 01enable %Qr.m.c.3 Binary
Low threshold value %QDr.m.c.2 Digital
High threshold value %QDr.m.c.4 Digital
Compare enable %QWr.m.c.0.5 Binary
Compare suspend %QWr.m.c.0.6 Binary
Modulo state %IWr.m.c.0.1 Binary
Modulo reset %Qr.m.c.9 Binary

For a description of each language object refer to T_UNSIGNED_CPT_BMX IODDT

(see page 185).

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Free Large Counter Mode Debugging

At a Glance
The table below presents the free large counter mode debugging elements:

Label Language object Type

Counter value %IDr.m.c.2 Digital
Counter valid %IWr.m.c.0.3 Binary
Counter low %IWr.m.c.1.0 Binary
Counter in window %IWr.m.c.1.1 Binary
Counter high %IWr.m.c.1.2 Binary
Counter in low limit %IWr.m.c.0.5 Binary
Counter in high limit %IWr.m.c.0.4 Binary
Capture 0 value %IDr.m.c.4 Digital
Capture 0 low %IWr.m.c.1.3 Binary
Capture 0 in window %IWr.m.c.1.4 Binary
Capture 0 high %IWr.m.c.1.5 Binary
Capture 0 enable %QWr.m.c.0.3 Binary
Capture 1 value %IDr.m.c.16 Digital
Capture 1 low %IWr.m.c.1.6 Binary
Capture 1 in window %IWr.m.c.1.7 Binary
Capture 1 high %IWr.m.c.1.8 Binary
Capture 1 enable %QWr.m.c.0.4 Binary
Input A state %Ir.m.c.4 Binary
Input B state %Ir.m.c.5 Binary
IN_SYNC input %Ir.m.c.6 Binary
Modulo state %IWr.m.c.0.1 Binary
Modulo reset %Qr.m.c.9 Binary
SYNC state %IWr.m.c.0.2 Binary
SYNC reset %Qr.m.c.8 Binary
Input EN %Ir.m.c.7 Binary
EN enable %QWr.m.c.0.2 Binary
Counter enable %Qr.m.c.6 Binary
Input REF %Ir.m.c.8 Binary
REF enable %QWr.m.c.0.1 Binary
REF force %QWr.m.c.5 Binary

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Label Language object Type

Input CAP %Ir.m.c.9 Binary
Output 0 state %Ir.m.c.0 Binary
Output 0 cmd %Qr.m.c.0 Binary
Output 1 state %Ir.m.c.1 Binary
Output 1 cmd %Qr.m.c.1 Binary
Counter reset %Qr.m.c.7 Binary
Output latch 0 state %Ir.m.c.2 Binary
Output latch 0 enable %Qr.m.c.2 Binary
Output latch 1 state %Ir.m.c.3 Binary
Output latch 1 enable %Qr.m.c.3 Binary
Low threshold value %QDr.m.c.2 Digital
High threshold value %QDr.m.c.4 Digital
Compare enable %QWr.m.c.0.5 Binary
Compare suspend %QWr.m.c.0.6 Binary

For a description of each language object refer to T_SIGNED_CPT_BMX IODDT (see page 185).

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Pulse Width Modulation Mode Debugging

At a Glance
The table below presents the pulse width modulation mode debugging elements:

Label Language object Type

Frequency valid %IWr.m.c.0.3 Binary
Frequency in low limit %IWr.m.c.0.5 Binary
Frequency in high limit %IWr.m.c.0.4 Binary
PWM frequency %QDr.m.c.6 Digital
PWM duty %QWr.m.c.8 Digital
Input SYNC state %Ir.m.c.6 Binary
SYNC enable %QWr.m.c.0.0 Binary
SYNC force %Qr.m.c.4 Binary
Input EN %Ir.m.c.7 Binary
EN enable %QWr.m.c.0.2 Binary
Counter enable %Qr.m.c.6 Binary
Output latch 0 enable %Qr.m.c.2 Binary
Output 0 state %Ir.m.c.0 Binary
Output 0 cmd %Qr.m.c.0 Binary
Output 1 state %Ir.m.c.1 Binary
Output 1 cmd %Qr.m.c.1 Binary

For a description of each language object refer to T_UNSIGNED_CPT_BMX IODDT

(see page 185).

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Display of Error, Counting Module
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Chapter 12
Display of BMX EHC xxxx Counting Module Error

Display of BMX EHC xxxx Counting Module Error

Subject of this Chapter

This chapter deals with the display of possible errors for the BMX EHC•••• modules.

What Is in This Chapter?

This chapter contains the following topics:
Topic Page
Fault Display Screen for BMX EHC 0200 Counting Modules 168
Faults Diagnostics Display 170
List of Error 171

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Fault Display Screen for BMX EHC 0200 Counting Modules

At a Glance
This section presents the fault display screen for BMX EHC 0200 counting modules. A module’s
fault display screen may only be accessed in online mode.

Illustration
The figure below presents the fault display screen for the BMX EHC 0200 module in modulo loop
counter mode.

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Description of the Screen

The following table presents the various parts of the above screen.

Number Element Function

1 Internal faults field This field displays the module’s active internal faults.
2 Tab The tab in the foreground indicates the current mode. The current mode is
therefore the fault display mode in this example.
3 External faults field This field displays the module’s active external faults.
4 Other faults field This field displays the module’s active faults, other than internal and external
faults.

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Display of Error, Counting Module

Faults Diagnostics Display

At a Glance
The diagnostic screens (see page 113) on the module or channel are only accessible in connected
mode. When an un-masked fault appears, it is reported:
 in the configuration screen of the rack, with the presence of a red square in the position of the
faulty counting module,
 in all screens at module level (Description and Fault tabs),
 in the module field with the LED

 in all channel level screens (Configuration, Adjustment, Debug and Fault tabs),
 in the module zone with the LED
 in the channel zone with the fault LED

 in the fault screen that is accessed by the Fault where the fault diagnostics are described.
The fault is also signaled:
 On the module, on the central display,
 by dedicated language objects: CH_ERROR (%Ir.m.c.ERR) and MOD_ERROR
(%Ir.m.MOD.ERR), %MWr.m.MOD.2, etc. and status words.
NOTE: Even if the fault is masked, it is reported by the flashing of the I/O LED and in the fault
screen.

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List of Error

At a Glance
The messages displayed on the diagnostics screens are used to assist with debugging. These
messages must be concise and are sometimes ambiguous (as different faults may have the same
consequences).
These diagnostics are on two levels: module and channel, the latter being the most explicit.
The lists below show the message headings with suggestions for identifying issues.

List of the Module Error Messages

The table below provides a list of the module error messages.

Fault indicated Possible interpretation and/or action.

Module failure The module has a error.
Check the module mounting. Change the module.
Faulty channel(s) One or more channels have a fault.
Refer to channel diagnostics.
Self-test The module is running a self-test.
Wait until the self-test is complete.
Different hardware and There is a lack of compatibility between the module configured and the module in
software configurations the rack.
Make the hardware configuration and the software configuration compatible.
Module is missing or off Install the module. Fasten the mounting screws.

BMX EHC 0200 Module Error

The table below provides a list of error that may appear on the BMX EHC 0200 module.

Language object Description

%MWr.m.c.2.0 External fault at inputs
%MWr.m.c.2.1 External fault at outputs
%MWr.m.c.2.4 Internal error or self-testing.
%MWr.m.c.2.5 Configuration Fault
%MWr.m.c.2.6 Communication Error
%MWr.m.c.2.7 Application fault
%MWr.m.c.3.2 Sensor power supply fault
%MWr.m.c.3.3 Actuator supply fault
%MWr.m.c.3.4 Short circuit on output 0
%MWr.m.c.3.5 Short circuit on output 1

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List of Channel Error Messages

The table below gives the list of error messages at channel level.

Fault indicated. Other consequences. Possible interpretation and/or action.

External fault or counting input fault: Check the sensor connections.
 encoder or proximity sensor supply fault Check the sensor power supply.
 line break or short circuit of at least one Check the sensor operation.
encoder differential signal (1A, 1B, 1Z) Delete the fault and acknowledge if the fault storing is
 specific fault on absolute encoder configured.
Counting pulses or incremental encoder: preset or reset to
Outputs are set to 0 in automatic mode. acknowledge the Invalid measurement message.
Invalid measurement message.
Counting application fault: Diagnose the fault more precisely (external causes).
 measurement overrun Check the application again, if necessary.
 overspeed Delete the fault and acknowledge if the fault storing is
configured.
Outputs are set to 0 in automatic mode.
Counting pulses or incremental encoder: preset or reset to 0
Invalid measurement message.
to acknowledge the Invalid measurement message.
Auxiliary input/output fault: Check the output connections
 power supply Check the input/output power supply (24V)
 short circuit of at least one output Diagnose the fault more precisely (external causes)
Delete the fault and acknowledge if the fault storing is
Outputs are set to 0 in automatic mode
configured
Internal error or channel self-testing: Module fault has gone down to channel level.
 module faulty Refer to module level diagnostics.
 module missing or off
 module running self-test

Different hardware and software Module fault has gone down to channel level.
configurations Refer to module level diagnostics.
Invalid software configuration: Check and modify the configuration constants.
 incorrect constant
 bit combination not associated with any
configuration
Communication error Check the connections between the racks.
Application fault: refusal to configure or Diagnose the fault more precisely.
adjust

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Chapter 13
The Language Objects of the Counting Function

The Language Objects of the Counting Function

Subject of this Chapter

This chapter describes the language objects associated to the counting tasks as well as the
different ways of using them.

What Is in This Chapter?

This chapter contains the following sections:
Section Topic Page
13.1 The Language Objects and IODDT of the Counting Function 174
13.2 Language Objects and IODDT Associated with the Counting Function of the 184
BMX EHC xxxx Modules.
13.3 The IODDT Type T_GEN_MOD Applicable to All Modules 192
13.4 Device DDTs Associated with the Counting Function of the BMX EHC xxxx 194
Modules.

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 Section 13.1
The Language Objects and IODDT of the Counting Function

The Language Objects and IODDT of the Counting Function

Subject of this Section

This section describes the general features of the language objects and IODDT of the counting
function.

What Is in This Section?

This section contains the following topics:
Topic Page
Introducing Language Objects for Application-Specific Counting 175
Implicit Exchange Language Objects Associated with the Application-Specific Function 176
Explicit Exchange Language Objects Associated with the Application-Specific Function 177
Management of Exchanges and Reports with Explicit Objects 179

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Introducing Language Objects for Application-Specific Counting

General
The counting modules have only two associated IODDTs. These IODDTs are predefined by the
manufacturer and contains language objects for inputs/outputs belonging to the channel of an
application-specific module.
The IODDT associated with the counting modules are of T_ Unsigned_CPT_BMX and
T_Signed_CPT_BMX types.
NOTE: IODDT variables can be created in two different ways:
 Using the I/O objects (see EcoStruxure™ Control Expert, Operating Modes) tab.
 Using the Data Editor (see EcoStruxure™ Control Expert, Operating Modes).

Language Object Types

Each IODDT contains a set of language objects allowing its operation to be controlled and
checked.
There are two types of language objects:
 Implicit Exchange Objects: these objects are automatically exchanged on each cycle revolution
of the task associated with the module.
 Explicit Exchange Objects: these objects are exchanged on the application's request, using
explicit exchange instructions.
Implicit exchanges concern the inputs/outputs of the module (measurement results, information
and commands). These exchanges enable the debugging of the counting modules.
Explicit exchanges enable the module to be set and diagnosed.

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Implicit Exchange Language Objects Associated with the Application-Specific Function

At a Glance
An integrated application-specific interface or the addition of a module automatically enhances the
language objects application used to program this interface or module.
These objects correspond to the input/output images and software data of the module or integrated
application-specific interface.

Reminders
The module inputs (%I and %IW) are updated in the PLC memory at the start of the task, the PLC
being in RUN or STOP mode.
The outputs (%Q and %QW) are updated at the end of the task, only when the PLC is in RUN mode.
NOTE: When the task occurs in STOP mode, either of the following are possible, depending on
the configuration selected:
 outputs are set to fallback position (fallback mode)
 outputs are maintained at their last value (maintain mode)

Figure
The following diagram shows the operating cycle of a PLC task (cyclical execution).

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Explicit Exchange Language Objects Associated with the Application-Specific Function

Introduction
Explicit exchanges are performed at the user program's request using these instructions:
 READ_STS (read status words)
 WRITE_CMD (write command words)
 WRITE_PARAM (write adjustment parameters)
 READ_PARAM (read adjustment parameters)
 SAVE_PARAM (save adjustment parameters)
 RESTORE_PARAM (restore adjustment parameters)

For more details about instructions, refer to EcoStruxure™ Control Expert, I/O Management, Block
Library.
These exchanges apply to a set of %MW objects of the same type (status, commands or
parameters) that belong to a channel.
These objects can:
 provide information about the module (for example, type of error detected in a channel)
 have command control of the module (for example, switch command)
 define the module’s operating modes (save and restore adjustment parameters in the process
of application)
NOTE: To avoid several simultaneous explicit exchanges for the same channel, it is necessary to
test the value of the word EXCH_STS (%MWr.m.c.0) of the IODDT associated to the channel
before calling any EF addressing this channel.
NOTE: Explicit exchanges are not supported when X80 analog and digital I/O modules are
configured through an eX80 adapter module (BMECRA31210) in a Quantum EIO configuration.
You cannot set up a module's parameters from the PLC application during operation.

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General Principle for Using Explicit Instructions
The diagram below shows the different types of explicit exchanges that can be made between the
application and module.

Managing Exchanges
During an explicit exchange, check performance to see that the data is only taken into account
when the exchange has been correctly executed.
To do this, two types of information is available:
 information concerning the exchange in progress (see page 182)
 the exchange report (see page 182)

The following diagram describes the management principle for an exchange.

NOTE: In order to avoid several simultaneous explicit exchanges for the same channel, it is
necessary to test the value of the word EXCH_STS (%MWr.m.c.0) of the IODDT associated to the
channel before calling any EF addressing this channel.

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At a Glance
When data is exchanged between the PLC memory and the module, the module may require
several task cycles to acknowledge this information. IODDTs use two words to manage
exchanges:
 EXCH_STS (%MWr.m.c.0): exchange in progress
 EXCH_RPT (%MWr.m.c.1): report

NOTE:
Depending on the localization of the module, the management of the explicit exchanges
(%MW0.0.MOD.0.0 for example) will not be detected by the application:
 For in-rack modules, explicit exchanges are done immediately on the local PLC Bus and are
finished before the end of the execution task. So, the READ_STS, for example, is finished when
the %MW0.0.mod.0.0 bit is checked by the application.
 For remote bus (Fipio for example), explicit exchanges are not synchronous with the execution
task, so the detection is possible by the application.

Illustration
The illustration below shows the different significant bits for managing exchanges:

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Description of Significant Bits
Each bit of the words EXCH_STS (%MWr.m.c.0) and EXCH_RPT (%MWr.m.c.1) is associated with
a type of parameter:
 Rank 0 bits are associated with the status parameters:
 The STS_IN_PROGR bit (%MWr.m.c.0.0) indicates whether a read request for the status
words is in progress.
 The STS_ERR bit (%MWr.m.c.1.0) specifies whether a read request for the status words is
accepted by the module channel.
 Rank 1 bits are associated with the command parameters:
 The CMD_IN_PROGR bit (%MWr.m.c.0.1) indicates whether command parameters are
being sent to the module channel.
 The CMD_ERR bit (%MWr.m.c.1.1) specifies whether the command parameters are
accepted by the module channel.
 Rank 2 bits are associated with the adjustment parameters:
 The ADJ_IN_PROGR bit (%MWr.m.c.0.2) indicates whether the adjustment parameters are
being exchanged with the module channel (via WRITE_PARAM, READ_PARAM,
SAVE_PARAM, RESTORE_PARAM).
 The ADJ_ERR bit (%MWr.m.c.1.2) specifies whether the adjustment parameters are
accepted by the module. If the exchange is correctly executed, the bit is set to 0.
 Rank 15 bits indicate a reconfiguration on channel c of the module from the console
(modification of the configuration parameters + cold start-up of the channel).
 The r, m and c bits indicates the following elements:
 the r bit represents the rack number.
 The m bit represents the position of the module in the rack.
 The c bit represents the channel number in the module.

NOTE: r represents the rack number, m the position of the module in the rack, while c represents
the channel number in the module.
NOTE: Exchange and report words also exist at module level EXCH_STS (%MWr.m.MOD) and
EXCH_RPT (%MWr.m.MOD.1) as per IODDT type T_GEN_MOD.

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Example
Phase 1: Sending data by using the WRITE_PARAM instruction

When the instruction is scanned by the PLC, the Exchange in progress bit is set to 1 in %MWr.m.c.
Phase 2: Analysis of the data by the I/O module and report.

When the data is exchanged between the PLC memory and the module, acknowledgement by the
module is managed by the ADJ_ERR bit (%MWr.m.c.1.2).
This bit makes the following reports:
 0: correct exchange
 1: incorrect exchange)

NOTE: There is no adjustment parameter at module level.

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Execution Indicators for an Explicit Exchange: EXCH_STS
The table below shows the control bits of the explicit exchanges: EXCH_STS (%MWr.m.c.0)

Standard Symbol Type Access Meaning Address

STS_IN_PROGR BOOL R Reading of channel status words in %MWr.m.c.0.0
progress
CMD_IN_PROGR BOOL R Command parameters exchange in %MWr.m.c.0.1
progress
ADJ_IN_PROGR BOOL R Adjust parameters exchange in %MWr.m.c.0.2
progress
RECONF_IN_PROGR BOOL R Reconfiguration of the module in %MWr.m.c.0.15
progress

NOTE: If the module is not present or is disconnected, explicit exchange objects (READ_STS for
example) are not sent to the module (STS_IN_PROG (%MWr.m.c.0.0) = 0), but the words are
refreshed.

Explicit Exchange Report: EXCH_RPT

The table below shows the report bits: EXCH_RPT (%MWr.m.c.1)

Standard Symbol Type Access Meaning Address

STS_ERR BOOL R Error detected while reading channel %MWr.m.c.1.0
status words
(1 = detected error)
CMD_ERR BOOL R Error detected during a command %MWr.m.c.1.1
parameter exchange
(1 = detected error)
ADJ_ERR BOOL R Error dectected during an adjust %MWr.m.c.1.2
parameter exchange
(1 = detected error)
RECONF_ERR BOOL R Error detected during reconfiguration of %MWr.m.c.1.15
the channel
(1 = detected error)

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Counting Module Use
The following table describes the steps realized between a couting module and the system after a
power-on.

Step Action
1 Power on.
2 The system sends the configuration parameters.
3 The system sends the adjust parameters by WRITE_PARAM method.
Note: When the operation is finished, the bit %MWr.m.c.0.2 switches to 0.

If, in the begining of your application, you use a WRITE_PARAM command, wait until the bit
%MWr.m.c.0.2 switches to 0.

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 Section 13.2
Language Objects and IODDT Associated with the Counting Function of the BMX EHC xxxx Modules.

Language Objects and IODDT Associated with the Counting

Function of the BMX EHC xxxx Modules.

Subject of this Section

This section presents the language objects and IODDTs associated with the counting function of
BMX EHC •••• modules.

What Is in This Section?

This section contains the following topics:
Topic Page
Details of Implicit Exchange Objects for the T_Unsigned_CPT_BMX and T_Signed_CPT_BMX- 185
types IODDTs
Details of the Explicit Exchange Objects for the T_CPT_BMX-type IODDT 190

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Details of Implicit Exchange Objects for the T_Unsigned_CPT_BMX and
T_Signed_CPT_BMX-types IODDTs

At a Glance
The tables below present the T_Unsigned_CPT_BMX and T_Signed_CPT_BMX-types IODDTs
implicit exchange objects which are applicable to all BMX EHC •••• counting modules.

Counter Value and Sensor Values

The table below presents the various IODDT implicit exchange objects:

Standard symbol Type Access Meaning Language object

COUNTER_CURRENT_VALUE DINT R Current counter value %IDr.m.c.2
CAPT_0_VALUE DINT R Counter value when captured in register 0 %IDr.m.c.4
CAPT_1_VALUE DINT R Counter value when captured in register 1 %IDr.m.c.6
COUNTER_VALUE DINT R Current counter value during event %IDr.m.c.12
CAPT_0_VAL DINT R Capture value 0 %IDr.m.c.14
CAPT_1_VAL DINT R Capture value 1 %IDr.m.c.16

%Ir.m.c.d Word
The table below presents the meanings of the %Ir.m.c.d words:

Standard symbol Type Access Meaning Language

object
CH_ERROR BOOL R Channel error %Ir.m.c.ERR
OUTPUT_0_Echo BOOL R Logical state of output 0 %Ir.m.c.0
OUTPUT_1_Echo BOOL R Logical state of output 1 %Ir.m.c.1
OUTPUT_BLOCK_0 BOOL R State of output block 0 %Ir.m.c.2
OUTPUT_BLOCK_1 BOOL R State of output block 1 %Ir.m.c.3
INPUT_A BOOL R Physical state of IN_A input %Ir.m.c.4
INPUT_B BOOL R Physical state of IN_B input %Ir.m.c.5
INPUT_SYNC BOOL R Physical state of the IN_SYNC input (or %Ir.m.c.6
IN_AUX)
INPUT_EN BOOL R Physical state of IN_EN input (enable) %Ir.m.c.7
INPUT_REF BOOL R Physical state of the IN_REF input (preset) %Ir.m.c.8
INPUT_CAPT BOOL R Physical state of IN_CAP input (capture) %Ir.m.c.9

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Counter Status, %IWr.m.c.0 Word
The following table presents the meanings of the bits of the %IWr.m.c.0 status word:

Standard symbol Type Access Meaning Language object

RUN BOOL R The counter operates in counting mode only %IWr.m.c.0.0
MODULO_FLAG BOOL R Flag set to 1 by a modulo switch event %IWr.m.c.0.1
SYNC_REF_FLAG BOOL R Flag set to 1 by a preset or synchronization %IWr.m.c.0.2
event
VALIDITY BOOL R The current numerical value is valid %IWr.m.c.0.3
HIGH_LIMIT BOOL R The current numerical value is locked at the %IWr.m.c.0.4
upper threshold value
LOW_LIMIT BOOL R The current numerical value is locked at the %IWr.m.c.0.5
lower threshold value

Comparison Status, %IWr.m.c.1 Word

The following table presents the meanings of the bits of the %IWr.m.c.1 status word:

Standard symbol Type Access Meaning Language object

COUNTER_LOW BOOL R Current counter value less than lower %IWr.m.c.1.0
threshold (%QDr.m.c.2)
COUNTER_WIN BOOL R Current counter value is between lower %IWr.m.c.1.1
threshold (%QDr.m.c.2) and upper
threshold (%QDr.m.c.4)
COUNTER_HIGH BOOL R Current counter value greater than upper %IWr.m.c.1.2
threshold (%QDr.m.c.4)
CAPT_0_LOW BOOL R Value captured in register 0 is less than %IWr.m.c.1.3
lower threshold (%QDr.m.c.2)
CAPT_0_WIN BOOL R Value captured in register 0 is between lower %IWr.m.c.1.4
threshold (%QDr.m.c.2) and upper
threshold (%QDr.m.c.4)
CAPT_0_HIGH BOOL R Value captured in register 0 is greater than %IWr.m.c.1.5
upper threshold (%QDr.m.c.4)
CAPT_1_LOW BOOL R Value captured in register 1 is less than %IWr.m.c.1.6
lower threshold (%QDr.m.c.2)
CAPT_1_WIN BOOL R Value captured in register 1 is between lower %IWr.m.c.1.7
threshold (%QDr.m.c.2) and upper
threshold (%QDr.m.c.4)
CAPT_1_HIGH BOOL R Value captured in register 1 is greater than %IWr.m.c.1.8
upper threshold (%QDr.m.c.4)

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Event Sources, %IWr.m.c.10 Word
The following table presents the meanings of the bits of the %IWr.m.c.10 word:

Standard symbol Type Access Meaning Language object

EVT_SOURCES INT R Event sources field %IWr.m.c.10
EVT_RUN BOOL R Event due to start of counter. %IWr.m.c.10.0
EVT_MODULO BOOL R Event due to modulo switch %IWr.m.c.10.1
EVT_SYNC_PRESET BOOL R Event due to synchronization or preset %IWr.m.c.10.2
EVT_COUNTER_LOW BOOL R Event due to counter value being less than %IWr.m.c.10.3
lower threshold
EVT_COUNTER_WINDOW BOOL R Event due to counter value being between %IWr.m.c.10.4
the two thresholds
EVT_COUNTER_HIGH BOOL R Event due to counter value being greater %IWr.m.c.10.5
than upper threshold
EVT_CAPT_0 BOOL R Event due to capture function 0 %IWr.m.c.10.6
EVT_CAPT_1 BOOL R Event due to capture function 1 %IWr.m.c.10.7
EVT_OVERRUN BOOL R Warning: lost event(s) %IWr.m.c.10.8

Output Thresholds and Frequency

The table below presents the various IODDT implicit exchange objects:

Standard symbol Type Access Meaning Language

object
LOWER_TH_VALUE DINT R/W Lower threshold value %QDr.m.c.2
UPPER_TH_VALUE DINT R/W Upper threshold value %QDr.m.c.4
PWM_FREQUENCY DINT R/W Output frequency value (unit = 0.1 Hz) %QDr.m.c.6
PWM_DUTY INT R/W Duty cycle value of the output frequency %QDr.m.c.8
(unit = 5%)

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%Qr.m.c.d Words
The following table presents the meanings of the bits of the %Qr.m.c.d words:

Standard symbol Type Access Meaning Language

object
OUTPUT_0 BOOL R/W Forces OUTPUT_0 to level 1 %Qr.m.c.0
OUTPUT_1 BOOL R/W Forces OUTPUT_1 to level 1 %Qr.m.c.1
OUTPUT_BLOCK_0_ENABLE BOOL R/W Implementation of output 0 function block %Qr.m.c.2
OUTPUT_BLOCK_1_ENABLE BOOL R/W Implementation of output 1 function block %Qr.m.c.3
FORCE_SYNC BOOL R/W Counting function synchronization and start %Qr.m.c.4
FORCE_REF BOOL R/W Set to preset counter value %Qr.m.c.5
FORCE_ENABLE BOOL R/W Implementation of counter %Qr.m.c.6
FORCE_RESET BOOL R/W Reset counter %Qr.m.c.7
SYNC_RESET BOOL R/W Reset SYNC_REF_FLAG %Qr.m.c.8
MODULO_RESET BOOL R/W Reset MODULO_FLAG %Qr.m.c.9

FUNCTIONS_ENABLING, %QWr.m.c.0 Word

The following table presents the meanings of the bits of the %QWr.m.c.0 words:

Standard symbol Type Access Meaning Language object

VALID_SYNC BOOL R/W Synchronization and start authorization for %QWr.m.c.0.0
the counting function via the IN_SYNC
input
VALID_REF BOOL R/W Operation authorization for the internal %QWr.m.c.0.1
preset function
VALID_ENABLE BOOL R/W Authorization of the counter enable via the %QWr.m.c.0.2
IN_EN input
VALID_CAPT_0 BOOL R/W Capture authorization in the capture0 %QWr.m.c.0.3
register
VALID_CAPT_1 BOOL R/W Capture authorization in the capture1 %QWr.m.c.0.4
register
COMPARE_ENABLE BOOL R/W Comparators operation authorization %QWr.m.c.0.5
COMPARE_SUSPEND BOOL R/W Comparator frozen at its last value %QWr.m.c.0.6

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EVENT_SOURCES_ENABLING, %QWr.m.c.1 Word
The following table presents the meanings of the bits of the %QWr.m.c.1 words:

Standard symbol Type Access Meaning Language object

EVT_RUN_ENABLE BOOL R/W EVENT task call at start of the counting %QWr.m.c.1.0
function
EVT_MODULO_ENABLE BOOL R/W EVENT task call when there is a counter %QWr.m.c.1.1
reversal
EVT_REF_ENABLE BOOL R/W EVENT task call during counter %QWr.m.c.1.2
synchronization or preset
EVT_COUNTER_LOW_ BOOL R/W EVENT task call when the counter value is %QWr.m.c.1.3
less than lower threshold
EVT_COUNTER_WINDOW_ BOOL R/W EVENT task call when the counter is %QWr.m.c.1.4
ENABLE between the lower and upper threshold
EVT_COUNTER_HIGH_ BOOL R/W EVENT task call when the counter value is %QWr.m.c.1.5
ENABLE greater than the upper threshold
EVT_CAPT_0_ENABLE BOOL R/W EVENT task call during capture in register 0 %QWr.m.c.1.6
EVT_CAPT_1_ENABLE BOOL R/W EVENT task call during capture in register 1 %QWr.m.c.1.7

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Details of the Explicit Exchange Objects for the T_CPT_BMX-type IODDT

At a Glance
This section presents the explicit exchange objects for the T_Unsigned_CPT_BMX and
T_Signed_CPT_BMX- types IODDTs which are applicable to all BMX EHC •••• counting modules.
They includes word type objects whose bits have a specific meaning. These objects are described
in detail below.
Sample variable declaration: T_Unsigned_CPT_BMX and T_Signed_CPT_BMX-types
IODDT_VAR1.
NOTE:
 in general, the meaning of the bits is given for bit status 1.
 not all bits are used.

Exchange Status: EXCH_STS

The table below shows the meaning of channel exchange status bits from the EXCH_STS channel
(%MWr.m.c.0).

Standard symbol Type Access Meaning Language object

STS_IN_PROG BOOL R Status parameter read in progress %MWr.m.c.0.0
ADJ_IN_PROG BOOL R Adjust parameter exchange in progress %Mwr.m.c.0.2
RECONF_IN_PROG BOOL R Reconfiguration in progress %MWr.m.c.0.15

Channel Report: EXCH_RPT

The following table presents the meanings of the report bits of the EXCH_RPT channel
(%MWr.m.c.1).

Standard symbol Type Access Meaning Language object

STS_ERR BOOL R Error while reading channel status %MWr.m.c.1.0
ADJ_ERR BOOL R Error while adjusting the channel %Mwr.m.c.1.2
RECONF_ERR BOOL R Error while reconfiguring the channel %MWr.m.c.1.15

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Channel Error: CH_FLT
The table below presents the meaning of the error bits on the CH_FLT channel (%MWr.m.c.2).

Standard symbol Type Access Meaning Language object

EXTERNAL_FLT_INPUTS BOOL R External error at inputs %MWr.m.c.2.0
EXTERNAL_FLT_OUTPUTS BOOL R External error at outputs %MWr.m.c.2.1
INTERNAL_FLT BOOL R Internal error: channel inoperative %MWr.m.c.2.4
CONF_FLT BOOL R Hardware or software configuration error %MWr.m.c.2.5
COM_FLT BOOL R Bus Communication error %MWr.m.c.2.6
APPLI_FLT BOOL R Application error %MWr.m.c.2.7

Channel Error: %MWr.m.c.3

The table below presents the meaning of the error bits on the %MWr.m.c.3 word.

Standard symbol Type Access Meaning Language object

SENSOR_SUPPLY BOOL R Low input power supply for the sensors %MWr.m.c.3.2
ACTUATOR_SUPPLY_FLT BOOL R Output power supply failure %MWr.m.c.3.3
SHORT_CIRCUIT_OUT_0 BOOL R Short circuit on output 0 %MWr.m.c.3.4
SHORT_CIRCUIT_OUT_1 BOOL R Short circuit on output 1 %MWr.m.c.3.5

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 Section 13.3
The IODDT Type T_GEN_MOD Applicable to All Modules

The IODDT Type T_GEN_MOD Applicable to All Modules

Details of the Language Objects of the IODDT of Type T_GEN_MOD

Introduction
The Modicon X80 modules have an associated IODDT of type T_GEN_MOD.

Observations
In general, the meaning of the bits is given for bit status 1. In specific cases an explanation is given
for each status of the bit.
Some bits are not used.

List of Objects
The table below presents the objects of the IODDT.

Standard Symbol Type Access Meaning Address

MOD_ERROR BOOL R Module detected error bit %Ir.m.MOD.ERR
EXCH_STS INT R Module exchange control word %MWr.m.MOD.0
STS_IN_PROGR BOOL R Reading of status words of the module in %MWr.m.MOD.0.0
progress
EXCH_RPT INT R Exchange report word %MWr.m.MOD.1
STS_ERR BOOL R Event when reading module status words %MWr.m.MOD.1.0
MOD_FLT INT R Internal detected errors word of the module %MWr.m.MOD.2
MOD_FAIL BOOL R module inoperable %MWr.m.MOD.2.0
CH_FLT BOOL R Inoperative channel(s) %MWr.m.MOD.2.1
BLK BOOL R Terminal block incorrectly wired %MWr.m.MOD.2.2
CONF_FLT BOOL R Hardware or software configuration anomaly %MWr.m.MOD.2.5
NO_MOD BOOL R Module missing or inoperative %MWr.m.MOD.2.6
EXT_MOD_FLT BOOL R Internal detected errors word of the module (Fipio %MWr.m.MOD.2.7
extension only)
MOD_FAIL_EXT BOOL R Internal detected error, module unserviceable %MWr.m.MOD.2.8
(Fipio extension only)
CH_FLT_EXT BOOL R Inoperative channel(s) (Fipio extension only) %MWr.m.MOD.2.9
BLK_EXT BOOL R Terminal block incorrectly wired (Fipio extension %MWr.m.MOD.2.10
only)

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Standard Symbol Type Access Meaning Address
CONF_FLT_EXT BOOL R Hardware or software configuration anomaly %MWr.m.MOD.2.13
(Fipio extension only)
NO_MOD_EXT BOOL R Module missing or inoperative (Fipio extension %MWr.m.MOD.2.14
only)

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 Section 13.4
Device DDTs Associated with the Counting Function of the BMX EHC xxxx Modules.

Device DDTs Associated with the Counting Function of the

BMX EHC xxxx Modules.

Subject of this Section

This section presents the Device DDTs associated with the counting function of BMX EHC ••••
modules.

What Is in This Section?

This section contains the following topics:
Topic Page
Counter Device DDT 195
MOD_FLT Byte Description 203

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Counter Device DDT

Introduction
This topic describes the device DDT for the Modicon X80 counter module, the instance default
naming is described in Device DDT Instance Naming Rule (see EcoStruxure™ Control Expert,
Program Languages and Structure, Reference Manual).
Regarding the device DDT, its name contains the following information:
 platform with:
 M for Modicon X80 module

 device type (CPT for counter)

 function (STD for standard)
 direction:
 IN
 OUT

 max channel (2 or 8)
Example: For a Modicon X80 counter module with 2 standard inputs: T_M_CPT_STD_IN_2

Adjustment Parameter limitation

Adjustment parameters cannot be changed from the PLC application during operation (no support
of READ_PARAM, WRITE_PARAM, SAVE_PARAM, RESTORE_PARAM) for:
 counter modules in a Quantum EIO
 counter modules in a M580 RIO

Modifying the adjustment parameters of a channel from Control Expert during a CCOTF operation
causes the channel to be re-initialized.
The concerned parameters are:
 PRESET_VALUE
Preset value
 CALIBRATION_FACTOR
Calibration Factor
 MODULO_VALUE
Modulo value
 SLACK_VAL (Hysteresis)
Offset value

List of Implicit Device DDT

The following table shows the list of device DDT and their X80 modules:

Device DDT Modicon X80 modules

T_M_CPT_STD_IN_2 BMX EHC 0200
T_M_CPT_STD_IN_8 BMX EHC 0800

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Implicit Device DDT Description
The following table shows the T_M_CPT_STD_IN_x status word bits:

Standard Symbol Type Meaning Access

MOD_HEALTH BOOL 0 = the module has a detected read
error
1 = the module is operating
correctly
MOD_FLT BYTE internal detected errors byte read
(see page 203) of the module
CPT_CH_IN ARRAY [0..x-1] of T_M_CPT_STD_CH_IN Array of structure

The following table shows the T_M_CPT_STD_CH_IN_x[0..x-1] status word bits:

Standard Symbol Type Bit Meaning Access

FCT_TYPE WORD – 1 = Frequency read
2 = EvtCounting
3 = PeriodMeasuring
4 = Ratio1
5 = Ratio2
6 = OneShotCounter
7 = ModuleLoopCounter
8 = FreeLargeCounter
9 = PulseWidthModulation
10 = UpDownCounting
11 = DualPhaseCounting
CH_HEALTH BOOL – 0 = the channel has a detected read
error
1 = the channel is operating
correctly
ST_OUTPUT_0_ECHO EBOOL – logical state of output 0 read
ST_OUTPUT_1_ECHO EBOOL – logical state of output 1 read
ST_OUTPUT_BLOCK_0 EBOOL – status of physical counting read
output block 0
ST_OUTPUT_BLOCK_1 EBOOL – status of physical counting read
output block 1
(1) Signed application specific function (ASF) must be used
(2) Unsigned application specific function (ASF) must be used

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Standard Symbol Type Bit Meaning Access
ST_INPUT_A EBOOL – status of physical counting read
input A
ST_INPUT_B EBOOL – status of physical counting read
input B
ST_INPUT_SYNC EBOOL – physical state of the IN_SYNC read
input (or IN_AUX)
ST_INPUT_EN EBOOL – physical state of IN_EN input read
(enable)
ST_INPUT_REF EBOOL – physical state of the IN_REF read
input (preset)
ST_INPUT_CAPT EBOOL – physical state of IN_CAP input read
(capture)
COUNTER_STATUS [INT] RUN BOOL 0 the counter operates in read
counting mode only
MODULO_FLAG BOOL 1 flag set to 1 by a modulo switch read
event
SYNC_REF_FLAG BOOL 2 flag set to 1 by a preset or read
synchronization event
VALIDITY BOOL 3 the current numerical value is read
valid
HIGH_LIMIT BOOL 4 the current numerical value is read
locked at the upper threshold
value
LOW_LIMIT BOOL 5 the current numerical value is read
locked at the lower threshold
value
(1) Signed application specific function (ASF) must be used
(2) Unsigned application specific function (ASF) must be used

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Standard Symbol Type Bit Meaning Access
COMPARE_STATUS [INT] COUNTER_LOW BOOL 0 current counter value less than read
lower threshold
(LOWER_TH_VALUE)
COUNTER_WIN BOOL 1 current counter value is read
between lower threshold
(LOWER_TH_VALUE) and
upper threshold
(UPPER_TH_VALUE)
COUNTER_HIGH BOOL 2 current counter value greater read
than upper threshold
(UPPER_TH_VALUE)
CAPT_0_LOW BOOL 3 Value captured in register 0 is read
less than lower threshold
(LOWER_TH_VALUE)
CAPT_0_WIN BOOL 4 Value captured in register 0 is read
between lower threshold
(LOWER_TH_VALUE) and
upper threshold
(UPPER_TH_VALUE)
CAPT_0_HIGH BOOL 5 Value captured in register 0 is read
greater than upper threshold
(UPPER_TH_VALUE)
CAPT_1_LOW BOOL 6 Value captured in register 1 is read
less than lower threshold
(LOWER_TH_VALUE)
CAPT_1_WIN BOOL 7 Value captured in register 1 is read
between lower threshold
(LOWER_TH_VALUE) and
upper threshold
(UPPER_TH_VALUE)
CAPT_1_HIGH BOOL 8 Value captured in register 1 is read
greater than upper threshold
(UPPER_TH_VALUE)
COUNTER_CURRENT_VALUE_S(1) DINT – Current counter value during read
event
CAPT_0_VALUE_S(1) DINT – Value captured in register 0 read

CAPT_1_VALUE_S (1) DINT – Value captured in register 1 read

COUNTER_CURRENT_VALUE_US (2) UDINT – Current counter value during read

event
CAPT_0_VALUE_US(2) UDINT – Value captured in register 0 read
(1) Signed application specific function (ASF) must be used
(2) Unsigned application specific function (ASF) must be used

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Standard Symbol Type Bit Meaning Access

CAPT_1_VALUE_US (2) UDINT – Value captured in register 1 read

OUTPUT_0 EBOOL – forces OUTPUT_0 to level 1 read /
write
OUTPUT_1 EBOOL – forces OUTPUT_1 to level 1 read /
write
OUTPUT_BLOCK_0_ENABLE EBOOL – implementation of output 0 read /
function block write
OUTPUT_BLOCK_1_ENABLE EBOOL – implementation of output 1 read /
function block write
FORCE_SYNC EBOOL – counting function read /
synchronization and start write
FORCE_REF EBOOL – set to preset counter value read /
write
FORCE_ENABLE EBOOL – implementation of counter read /
write
FORCE_RESET EBOOL – reset counter read /
write
SYNC_RESET EBOOL – reset SYNC_REF_FLAG read /
write
MODULO_RESET EBOOL – reset MODULO_FLAG read /
write
FUNCTIONS_ENABLING [INT] VALID_SYNC BOOL 0 synchronization and start read /
authorization for the counting write
function via the IN_SYNC input
VALID_REF BOOL 1 operation authorization for the read /
internal preset function write
VALID_ENABLE BOOL 2 authorization of the counter read /
enable via the IN_EN input write
VALID_CAPT_0 BOOL 3 capture authorization in the read /
capture 0 register write
VALID_CAPT_1 BOOL 4 capture authorization in the read /
capture 1 register write
COMPARE_ENABLE BOOL 5 comparators operation read /
authorization write
COMPARE_SUSPEND BOOL 6 comparator frozen at its last read /
value write
LOWER_TH_VALUE_S(1) DINT – lower threshold value read /
write
(1) Signed application specific function (ASF) must be used
(2) Unsigned application specific function (ASF) must be used

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Standard Symbol Type Bit Meaning Access

UPPER_TH_VALUE_S (1) DINT – upper threshold value read /

write

PWM_FREQUENCY_S(1) DINT – output frequency value (unit = read /

0.1 Hz) write
LOWER_TH_VALUE_US(2) UDINT – lower threshold value read /
write
UPPER_TH_VALUE_US(2) UDINT – upper threshold value read /
write
PWM_FREQUENCY_US(2) UDINT – output frequency value (unit = read /
0.1 Hz) write
PWM_DUTY INT – duty cycle value of the output read /
frequency (unit = 5%) write
(1) Signed application specific function (ASF) must be used
(2) Unsigned application specific function (ASF) must be used

Here below is all the signed ASF that must be used with a counter BMX EHC 0200:
 Free Large counter Mode
 Ratio 1
 Ratio 2

Here below is all the unsigned ASF that must be used with a counter BMX EHC 0200:
 Event Counting Mode
 Frequency Mode
 Modulo Loop Counter Mode
 One Shot Counter Mode
 Period Measuring Mode
 Pulse Width Modulation Mode

Here below is all the signed ASF that must be used with a counter BMX EHC 0800:
 Up Down Counting Mode

Here below is all the unsigned ASF that must be used with a counter BMX EHC 0800:
 Event Counting Mode
 Frequency Mode
 Modulo Loop Counter Mode
 One Shot Counter Mode

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The following table shows the Derived Data Type (DDT) used for the variables connected to
dedicated EFB parameter to perform an explicit exchange:

DDT Description
T_M_CPT_STD_CH_STS Structure to read the channel Depending on the module location, the
status of a counting module. DDT can be connected to the STS
output parameter of the EFB:
 READ_STS_QX when the module
is located in Quantum EIO.
 READ_STS_MX when the module
is located in a M580 local rack or in
M580 RIO drops.
T_M_SIGN_CPT_STD_CH_PRM Structure for adjustment The DDT can be connected to the
parameters of a channel of a PARAM output parameter of the EFB:
counting module (signed  READ_PARAM_MX to read
application specific function) module parameters.
in a M580 local rack.  WRITE_PARAM_MX to write
T_M_UNSIGN_CPT_STD_CH_PRM Structure for adjustment module parameters.
parameters of a channel of a  SAVE_PARAM_MX to save
counting module (unsigned module parameters.
application specific function)  RESTORE_PARAM_MX to restore
in a M580 local rack. the new parameters of the module.
NOTE: Targeted channel address (ADDR) can be managed with ADDMX (see EcoStruxure™ Control Expert,
Communication, Block Library) EF (connect the output parameter OUT to the input parameter ADDR of the
communication functions).

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 The following table shows the structure of the T_M_CPT_STD_CH_STS DDT:

Standard Symbol Type Bit Meaning Access

CH_FLT [INT] EXTERNAL_FLT_INPUTS BOOL 0 external detected error at inputs read
EXTERNAL_FLT_OUTPUTS BOOL 1 external detected error at read
outputs
INTERNAL_FLT BOOL 4 internal detected error: channel read
inoperative
CONF_FLT BOOL 5 hardware or software read
configuration detected error
COM_FLT BOOL 6 bus communication detected read
error
APPLI_FLT BOOL 7 application detected error read
COM_EVT_FLT BOOL 8 communication event detected read
fault
OVR_EVT_CPU BOOL 9 CPU overflow event read
OVR_CPT_CH BOOL 10 counter channel overflow read
CH_FLT_2 [INT] SENSOR_SUPPLY BOOL 2 low input power supply for the read
sensors
ACTUATOR_SUPPLY_FLT BOOL 3 output power supply loss read
SHORT_CIRCUIT_OUT_0 BOOL 4 short circuit on output 0 read
SHORT_CIRCUIT_OUT_1 BOOL 5 short circuit on output 1 read

The following table shows the structure of the T_M_SIGN_CPT_STD_CH_PRM DDT:

Standard Symbol Type Bit Meaning Access

MODULO_VALUE DINT – Modulo value read/write
PRESET_VALUE DINT – Preset value read/write
CALIBRATION_FACTOR INT – Adjust the value from – 10 % to + 10 %, read/write
unit = 0.1 %
SLACK_VAL INT – Hysteresis read/write

The following table shows the structure of the T_M_UNSIGN_CPT_STD_CH_PRM DDT:

Standard Symbol Type Bit Meaning Access

MODULO_VALUE UINT – Modulo value read/write
PRESET_VALUE UINT – Preset value read/write
CALIBRATION_FACTOR INT – Adjust the value from – 10 % to + 10 %, read/write
unit = 0.1 %
SLACK_VAL INT – Hysteresis read/write

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MOD_FLT Byte in Device DDT

MOD_FLT byte structure:

Bit Symbol Description

0 MOD_FAIL  1: Internal detected error or module failure detected.
 0: No detected error

1 CH_FLT  1: Inoperative channels.

 0: Channels are operative.

2 BLK  1: Terminal block detected error.

 0: No detected error.

NOTE: This bit may not be managed.

3 –  1: Module in self-test.
 0: Module not in self-test.

NOTE: This bit may not be managed.

4 – Not used.
5 CONF_FLT  1: Hardware or software configuration detected error.
 0: No detected error.

6 NO_MOD  1: Module is missing or inoperative.

 0: Module is operating.

NOTE: This bit is managed only by modules located in a remote rack with a
BME CRA 312 10 adapter module. Modules located in the local rack do not manage
this bit that remains at 0.
7 – Not used.

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 Modicon X80
Example of Counting Module Implementation
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Part V
Quick Start: Example of Counting Module Implementation

Quick Start: Example of Counting Module Implementation

Subject of this Part

This part presents an example of implementation of the counting modules.

What Is in This Part?

This part contains the following chapters:
Chapter Chapter Name Page
14 Description of the Application 207
15 Installing the Application Using Control Expert 209
16 Starting the Application 231

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Description of the application
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Chapter 14
Description of the Application

Description of the Application

Overview of the Application

At a Glance
The application described in this document is used for sticking labels on boxes.
The boxes are carried on a conveyor. A label is stuck onto the box when the latter passes by the
two dedicated points.
A sensor placed below the conveyor detects any new incoming box. The boxes should arrive at
constant intervals.
The conveyor motor is fitted with an encoder connected to a counting input module. Any process
deflection is monitored and displayed.
The application's control resources are based on an operator screen displaying all box positions,
the number of labeled boxes and the deflection monitoring.

Illustration
This is the application’s final operator screen:

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Description of the application

Operating Mode
The operating mode is as follows:
 A Start button is used to start the labelling process.
 A Stop button interrupts the labelling process.
 When the box arrives at the right time, the Box on time indicator lights on.
 In case of process deflection, the box delay time is displayed. If this time has been too long, a
Process deflection indicator lights on.

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Application using Control Expert
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Chapter 15
Installing the Application Using Control Expert

Installing the Application Using Control Expert

Subject of this chapter

This chapter describes the procedure for creating the application described. It shows, in general
and in more detail, the steps in creating the different components of the application.

What Is in This Chapter?

This chapter contains the following sections:
Section Topic Page
15.1 Presentation of the Solution Used 210
15.2 Developing the Application 213

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Application using Control Expert

Section 15.1
Presentation of the Solution Used

Presentation of the Solution Used

Subject of this section

This section presents the solution used to develop the application. It explains the technological
choices and gives the application’s creation timeline.

What Is in This Section?

This section contains the following topics:
Topic Page
Technological Choices Used 211
Process Using Control Expert 212

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Technological Choices Used

At a Glance
There are several ways of writing a counter application using Control Expert. The one proposed,
uses the Modulo Loop Counter Mode available in the BMX EHC 0200 counting input module.

Technological Choices
The following table shows the technological choices used for the application.

Objects Choices used

Counter mode Use of the Modulo Loop Counter Mode. This mode counts the encoder input
pulses. The modulo value is the defined counting limit. When the counting
reaches the modulo value, the counter restarts from 0.
A positive transition of the capture signal triggers the count value capture in the
capture register and the counter restarts from 0.
In this application, the modulo value is the constant interval between boxes and
the capture signal is sent by the sensor.
The module reflex outputs are triggered when the counting exceeds defined
thresholds.
Supervision screen Use of elements from the library and new objects.
Main supervision program This program contains two sections.
 The first one, which initiates and uses the Modulo Loop Counter Mode
functions, is developed using a Structured Text language (ST).
 The Application section, which allows operators screen animation, is
created in Ladder Diagram (LD) language.

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Application using Control Expert

Process Using Control Expert

At a Glance
The following logic diagram shows the different steps to follow to create the application. A
chronological order must be respected in order to correctly define all of the application elements.

Description
Description of the different types:

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Section 15.2
Developing the Application

Developing the Application

Subject of this Section

This section gives a step-by-step description of how to create the application using Control Expert.

What Is in This Section?

This section contains the following topics:
Topic Page
Creating the Project 214
Configuration of the Counting Module 215
Declaration of Variables 218
Creating the Program for Managing the Counter Module 220
Creating the Labelling Program in ST 222
Creating the I/O Event Section in ST 224
Creating a Program in LD for Application Execution 225
Creating an Animation Table 228
Creating the Operator Screen 229

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Application using Control Expert

Creating the Project

At a Glance
Developing an application using Control Expert involves creating a project associated with a PLC.

Procedure for Creating a Project

The table below shows the procedure for creating the project using Control Expert.

Step Action
1 Launch the Control Expert software.
2 Click on File then New to select a PLC.

3 To see all PLC versions, click on the box Show all versions.
4 Select the processor you wish to use from those proposed.
5 To create a project with specific values of project settings, check the box Settings File and use the
browser button to localize the .XSO file (Project Settings file). It is also possible to create a new one.
If the Settings File box is not checked , default values of project settings are used.
6 Terminate your configuration, insert a BMX EHC 0200 input module.
7 Confirm with OK.

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Configuration of the Counting Module

At a Glance
Developing a counting application involves choosing the right module and appropriate
configuration.

Module Selection
The table below shows the procedure for selecting the counting input module.

Step Action
1 In the Project browser double-click on Configuration then on 0:Bus X and on
0:BMX XBP ••• (Where 0 is the rack number)
2 In the Bus X window, select a slot (for example slot 1) and double-click
3 Choose the BMX HEC 0200 counting input module

4 Confirm with OK.

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Counting Module Configuration

The table below shows the procedure for selecting the counting function and configuring the
module reflex outputs.

Step Action
1 In the Bus X window, double-click on the BMX EHC 0200 counting input module
2 Select a channel (for example Counter 0) and click
3 Select the module function Modulo Loop Counter Mode
4 In the Config tab, configure the OutputBlock 0 reflex output with a pulse when the counting is
greater than the Lower Threshold (Pulse = greater than LT) and the OutputBlock 1 reflex
output with a pulse when the counting is greater than the Upper Threshold (Pulse = greater
than UT). Then click on the Event value and select Enable.

5 Click on the Adjust tab and enter the modulo value (for example 50).

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Declaration of I/O objects

The table below shows the procedure for declaring the I/O Derived Variable

Step Action
1 In the BMX EHC 0200 window, click on the BMX EHC 0200 and then on the I/O objects tab
2 Click on the I/O object prefix address %CH then on the Update grid button, the channel
address appears in the I/O object grid
3 Click on the line %CH0.1.0 and then enter a channel name in the Prefix for name zone
4 Now click on different Implicit I/O object prefix addresses then Update grid button to see the
names and addresses of the implicit I/O objects.

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Application using Control Expert

Declaration of Variables

At a Glance
All of the variables used in the different sections of the program must be declared.
Undeclared variables cannot be used in the program.
NOTE: For more information, refer to chapter Data Editor (see EcoStruxure™ Control Expert,
Operating Modes).

Procedure for Declaring Variables

The table below shows the procedure for declaring application variables.

Step Action
1 In Project browser / Variables & FB instances, double-click on
Elementary variables
2 In the Data editor window, select the box in the Name column and enter a
name for your first variable.
3 Now select a Type for this variable.
4 When all your variables are declared, you can close the window.

Variables Used for the Application

The following table shows the details of the variables used in the application.

Variable Type Definition

Run EBOOL Startup request for the labelling process.
Stop EBOOL Stop the labelling process.
Last_Box_late BOOL The process is in deflection.
Nb_Box DINT Number of labelled boxes.
Position_0 BOOL Box at the beginning of the conveyor.
Position_1 BOOL Box with the first label.
Position_2 BOOL Box with the two labels.
First_Labelling_Point DINT Lower Threshold value.
Second_Labelling_Point DINT Upper Threshold value.
Deflection_Parameter DINT Deflection alarm triggering value.
Waiting_First_Part BOOL The first box is waited.
Waiting_Other_Parts BOOL The first box has already passed.

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The following screen shows the application variables created using the data editor :

NOTE: Click on in front of the derived variable Encoder to expand the I/O objects list.

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Application using Control Expert

Creating the Program for Managing the Counter Module

At a Glance
Two sections are declared in the MAST task:
 The Labelling_Program section (See Creating the Labelling Program in ST, page 222),
written in ST, initiates and uses the Modulo Loop Counter Mode functions and I/O objects,
 The Application section (See Creating a Program in LD for Application Execution,
page 225), written in LD, executes the counting start-up and the operator screen animation.

Process Chart
The following screen shows the process chart.

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 Application using Control Expert

Description of the Labelling _Program Section

The following table describes the different steps of the process chart.

Step Description
Functions enabling Enables the Modulo Mode functions used in the application.
Threshold definitions The values of the thresholds, on which depend the reflex outputs,
are defined in this step.
Process deflection Test if the capture value is greater than the deflection parameter
Deflection Alarm ON If the result of the process deflection test is true, the alarm is ON.
Deflection Alarm OFF If the result of the process deflection test is false, the alarm is OFF.

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Application using Control Expert

Creating the Labelling Program in ST

At a Glance
This section initiates and uses the Modulo Loop Counter Mode functions and objects.

Illustration of the Labelling _Program Section

This section below is part of the MAST task. It has no condiction defined for it so it is permanently
executed:
(*Functions Enabling*)
(*Authorizes Input SYNC to synchronize and start the counting function*)
Encoder.VALID_SYNC:=Waiting_First_Part;
IF Waiting_First_Part
THEN nb_box := 0;
END IF;
(*Once the first part has passed below the sensor, the other functions
are enabled.*)
IF Waiting_Other_Parts
THEN
(*Authorizes captures into the Capture 0 register*)
Encoder.VALID_CAPT_0:=1;
(*Authorizes comparators to produce its results*)
Encoder.COMPARE_ENABLE:=1;
(*Call Event task when Counter Roll over*)
Encoder.EVT_MODULO_ENABLE:=1;
(*Enable the output block functions*)
Encoder.OUTPUT_BLOCK_0_ENABLE:=1;
Encoder.OUTPUT_BLOCK_1_ENABLE:=1;
ELSE
(*Function disabling when the conveyor is stopped*)
Encoder.VALID_CAPT_0:=0
Encoder.COMPARE_ENABLE:=0
Encoder.EVT_MODULO_ENABLE:=0
Encoder.OUTPUT_BLOCK_0_ENABLE:=0
Encoder.OUTPUT_BLOCK_1_ENABLE:=0

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 Application using Control Expert

END IF
(*Definition of the lower and upper threshold values*)
Encoder.LOWER_TH_VALUE:=First_Labelling_Point;
Encoder.UPPER_TH_VALUE:=Second_Labelling_Point;
(*Process Deflection Watching*)
IF Encoder.CAPT_0_VALUE>deflection_parameter=true
THEN last_box_late:=1; (*Default light set ON*)
ELSE last_box_late:=0; (*Default light set OFF*)
END IF
(*If the next part arrives just in the right time, the green indicator
lights on*)
IF Encoder.CAPT_0_VALUE = 0
THEN Last_Box_On_Target :=1 (*Green light set ON*)
ELSE Last_Box_On_Target :=0 (*Green light set OFF*)
END IF

Procedure for Creating an ST Section

The table below shows the procedure for creating an ST section for the application.

Step Action
1 In Project Browser\Program\Tasks, double-click on MAST,
2 Right-click on Section then select New section. Give your section a name and select ST
language.
3 The name of your section appears and can now be edited by double-clicking on it.
4
To use the I/O object, right-click in the editor then click on Data selection and on .
Click on on the front of the I/O derived variable Encoder and the list of the I/O objects
appears.
Click on the one you need and confirm with OK.

NOTE: In the Data selection windows, the IODDT checkbox must be checked to have access to
the I/O derived variable Encoder.

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Application using Control Expert

Creating the I/O Event Section in ST

At a Glance
This section is called when the modulo value is reached.

Illustration of the Event Section

The section below is part of the Event task:
(*Number of labelled boxes is incremented at the Modulo Event *)
INC(Nb_Box);

Procedure for Creating an ST Section

The table below shows the procedure for creating an I/O Event.

Step Action
1 In Project Browser\Program\, double-click on Events
2 Right click on I/O Events then select New Event section. Give your section
a number, for this example select 0, and then select ST language
3 Confirm with OK and the edition window appears.

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Creating a Program in LD for Application Execution

At a Glance
This section executes the counting start up and the operator screen animation.

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Application using Control Expert

Illustration of the Application Section

The section below is part of the MAST task:

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 Application using Control Expert

Description of the Application Section

 The first line is used to commande the counter.
 The other three lines are used to simulate the different box positions on the conveyor.
 The last part is used to control the variables which allow the function enabling (See Illustration
of the Labelling _Program Section, page 222
 When Run switches to ‘1’, Waiting_First_Part is set to ‘1’.
 A sensor signal triggers the flag Sync_ref_flag which resets Waiting_first_part to '0'
and sets Waiting_other_parts to '1'.

Procedure for Creating an LD Section

The table below describes the procedure for creating part of the Application section.

Step Action
1 In Project Browser\Program\Tasks, double-click on MAST.
2 Right click on Section then select New section. Name this section Application, then select
the language type LD.
The Edit window opens.
3
To create the contact Encoder.Sync_Ref_Flag, click on then place it in the editor. Double-
click on this contact then on . The Instance Selection window opens. Validate the
Inside structure checkbox and click on in front of the Encoder variable and select
Sync_Ref_Flag in the list. Confirm with OK.
4 To use the RS block you must instantiate it. Right click in the editor then click on Select data
and on . Click on the Function and Function Block Types tab. Click on Libset and
select the RS block in the list then confirm with OK and position your block. To link the
Encoder.Sync_Ref_Flag contact to the S Rnput of the RS block, align the contact and the input

horizontally, click on and position the link between the contact and the input.

NOTE: For more information on creating an LD section, refer to chapter LD Editor.

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Application using Control Expert

Creating an Animation Table

At a glance
An animation table is used to monitor the values of variables, and modify and/or force these values.
Only those variables declared in Variables & FB instances can be added to the animation
table
NOTE: Note: For more information, refer to chapter Animation Tables (see EcoStruxure™ Control
Expert, Operating Modes).

Procedure for Creating an Animation Table

The table below shows the procedure for creating an animation table.

Step Action
1 In the Project browser, right click on Animation tables.
The edit window opens.
2
Click on first cell in the Name column, then on the button, and add the
variables you require.

Animation Table Created for the Application

The following screen shows the animation table used by the application:

NOTE: The animation table is dynamic only in online mode (display of variable values)

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Creating the Operator Screen

At a Glance
The operator screen is used to animate graphic objects that symbolize the application. These
objects can belong to the Control Expert library, or can be created using the graphic editor.
NOTE: For more information, refer to chapter Operator screens (see EcoStruxure™ Control
Expert, Operating Modes).

Illustration on an Operator Screen

The following illustration shows the application operator screen:

NOTE: To animate objects in online mode, you must click on . By clicking on this button, you
can validate what is written.

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Application using Control Expert

Procedure for Creating an Operator Screen

The table below shows the procedure for creating the Start button.

Step Action
1 In the Project browser, right click on Operator screens and click on New screen.
The operator screen editor appears.
2 Click on the and position the new button on the operator screen. Double click on the
button and in the Control tab, select the Run variable by clicking the button and confirm
with OK. Then, enter the button name in the text zone.

The table below shows the procedure for inserting and animating the conveyor.

Step Action
1 In the Tools menu, select Operator screens Library. Double click on Machine then
Conveyor. Select the dynamic conveyor from the runtime screen and Copy (Ctrl+C) then
Paste (Ctrl+V) it into the drawing in the operator screen editor.
2 The conveyor is now in your operator screen. You now need a variable to animate the
wheels. Select your conveyor then click on . A line on the wheel is selected.
Press enter and the object properties window opens. Select the Animation tab and enter
the concerned variable, by clicking on (in the place of %MW0).
In our application, this will be Encoder.INPUT_A, the physical input A state. Confirm with
Apply and OK.
3
Click on to select the other lines one by one and apply the same procedure.

NOTE: In the Instance Selection, tick the IODDT checkbox and click on to access the I/O
objects list.
The table below shows the procedure for inserting and animating a display.

Step Action
1 Click on and position it on the operator screen. Double click on the text and select the
Animation tab.
2 Tick the Animated Object checkbox, select the concernd variable by cliking on and
confirm with OK.

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 Modicon X80
Starting the Application
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Chapter 16
Starting the Application

Starting the Application

Execution of Application in Standard Mode

At a Glance
Standard mode working requires the use of a PLC and a BMX EHC 0200 with an encoder and a
sensor linked to its inputs.

Outputs wiring
The actuators are connected as follow:

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Starting the Application

The assignment of the 10 pins connector is as follow:

Pin description:

Pin number Symbol Description

1 24V_IN 24 VDC input for input supply
2 GND_IN 0 VDC input for input supply
5 Q0-1 Q0 output for counting channel 1
6 Q0-0 Q0 output for counting channel 0
7 Q1-1 Q1 output for counting channel 1
8 Q1-0 Q1 output for counting channel 0
9 24V_OUT 24 VDC input for output supply
10 GND_OUT 0 VDC input for output supply

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 Starting the Application

Inputs Wiring
The encoder and the sensor are connected as follows:

The assignment of the 16 pins connector is as follows:

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Starting the Application

Description:

Pin number Symbol Description

1, 2, 7, 8 24V_SEN 24 VDC output for sensor supply
5, 6, 13, 14 GND_SEN 0 VDC output for sensor supply
15, 16 FE Functionnal ground
3 IN_A Input A
4 IN_SYNC Synchronization input
9 IN_B Input B
10 IN_EN Enable input selected
11 IN_REF Homing input
12 IN_CAP Capture input

Application Execution
The table below shows the procedure for launching the application in standard mode:

Step Action
1 In the PLC menu, click on Standard Mode,
2 In the Build menu, click on Rebuild All Project. Your project is generated and is ready
to be transferred to the PLC. When you generate the project, you will see a results window. If
there is an error in the program, Control Expert indicates its location if you click on the highlighted
sequence.
3 In the PLC menu, click on Connection. You are now connected to the PLC.
4 In the PLC menu, click on Transfer project to PLC. The Transfer project to PLC
window opens. Click on Transfer. The application is transferred to the PLC.
5 In the PLC, click on Execute. The Execute window opens. Click on OK. The application is now
being executed (in RUN mode) on the PLC.

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 Modicon X80
Index
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Index

B G
BMXEHC0200, 22 grounding accessories, 50
BMXXSP0400, 50 BMXXSP0400, 50
BMXXSP0600, 50 BMXXSP0600, 50
BMXXSP0800, 50 BMXXSP0800, 50
BMXXSP1200, 50 BMXXSP1200, 50
STBXSP3010, 50
STBXSP3020, 50
C
certifications, 36
channel data structure for all modules I
T_GEN_MOD, 192, 192 input interface blocks, 57
channel data structure for counting modules installing, 27, 109
T_SIGNED_CPT_BMX, 185, 190
T_UNSIGNED_CPT_BMX, 185, 190
configuring, 119 M
Counting Events, 79 MOD_FLT, 203
modulo loop counter, 95

D
debugging, 151 O
diagnosing, 67 one shot counter, 92

E P
event counting, 84 parameter settings, 173
period measuring, 86
pulse width modulation, 107
F
filtering, 58
free large counter, 99 Q
frequency mode, 83 quick start, 205
functions, 56

R
ratio, 89

S
settings, 143

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Index

standards, 36
STBXSP3010, 50
STBXSP3020, 50

T
T_GEN_MOD, 192, 192
T_M_CPT_STD_IN_2, 195
T_M_CPT_STD_IN_8, 195
T_SIGNED_BMX, 185
T_SIGNED_CPT_BMX, 190
T_UNSIGNED_CPT_BMX, 185, 190
terminal blocks
connecting, 27
installing, 27

W
wiring accessories, 27

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