<<Contents>> <<Index>>

General ProSafe-RS
Specifications Safety Instrumented System
Overview
GS 32Q01B30-31E (for Vnet/IP-Upstream)

n GENERAL
The ProSafe-RS is a Safety Instrumented System that is certified by the German certification organization,
Technische Überwachungs-Verein (TÜV) to meet Safety Integrity Level (SIL) 3 specified in IEC 61508.
Vnet/IP-Upstream is the control network integrating ProSafe-RS and FAST/TOOLS.

n COMPONENTS AND SOFTWARE

The ProSafe-RS system is composed of the Safety Control Station (SCS), the Safety Engineering PC (SENG).
ProSafe-RS communicates with each of those equipment via Vnet/IP-Upstream control network.
The SCS performs safety control, and the SENG performs engineering and maintenance for the SCS.
The ProSafe-RS can be integrated with the FAST/TOOLS. The SCS can be operated and monitored by the HMI
(human machine interface) of the FAST/TOOLS.
For specifications regarding the FAST/TOOLS, refer to its general specifications. When referring to the documents
related to a system where ProSafe-RS and FAST/TOOLS are integrated, read the word “Vnet/IP” as “Vnet/IP-
Upstream.”

l Safety Engineering PC (SENG)

To configure the ProSafe system, the CHS5100 Safety System Generation and Maintenance Package needs to be
installed on a computer. The SENG performs engineering and maintenance.
For details on the SENG’s functions, refer to the general specifications (GS 32Q04C10-31E) for the CHS5100 Safety
System Generation and Maintenance Package.

l Safety Control Station (SCS)

The SCS offers a safety control functions, the sequence-of-events-recorder (SOER) function, the FAST/TOOLS
integration function, and the Modbus connection function which interfaces the SCS with another system.
The SCS consists of a safety control unit (CPU node) and safety node units (I/O node). There are two types of CPU
nodes: a standard safety control unit and a wide range temperature safety control unit (equipped with a fan unit).
The CPU node can be connected with the I/O node via the ESB bus.
I/O modules can be mounted both on the CPU node and I/O node alike.
SCS with CPU node connectable to 9 I/O nodes
SSC57S-S: Safety Control Unit (for Vnet/IP-Upstream, Rack Mountable Type, Standard Type) (*1)
SSC57D-S: Duplexed Safety Control Unit (for Vnet/IP-Upstream, Rack Mountable Type, Standard Type) (*1)
SSC57S-F: Safety Control Unit (for Vnet/IP-Upstream, Rack Mountable Type, Wide Range Temperature Type) (*1)
SSC57D-F: Duplexed Safety Control Unit (for Vnet/IP-Upstream, Rack Mountable Type, Wide Range Temperature
Type) (*1).
SSC50S-S: Safety Control Unit (for Vnet/IP, Rack Mountable Type, Standard Type)
SSC50D-S: Duplexed Safety Control Unit (for Vnet/IP, Rack Mountable Type, Standard Type)
SSC50S-F: Safety Control Unit (for Vnet/IP, Rack Mountable Type, Wide Range Temperature Type)
SSC50D-F: Duplexed Safety Control Unit (for Vnet/IP, Rack Mountable Type, Wide Range Temperature Type)

For details, refer to the general specification “Safety Control Units for Vnet/IP (Rack Mountable Type), Duplexed
Safety Control Units (Rack Mountable Type)” (GS 32Q06D20-31E) and “Safety Control Units for Vnet/IP-Upstream
(Rack Mountable Type), Duplexed Safety Control Units (Rack Mountable Type)” (GS 32Q06D25-31E).
*1: Firmware revision of CPU module (SCP451) for SSC57 must be 19 or later.
SCS with CPU node connectable to 13 I/O nodes
SSC60S-S: Safety Control Unit (for Vnet/IP, Rack Mountable Type, Standard Type)
SSC60D-S: Duplexed Safety Control Unit (for Vnet/IP, Rack Mountable Type, Standard Type)
SSC60S-F: Safety Control Unit (for Vnet/IP, Rack Mountable Type, Wide Range Temperature Type)
SSC60D-F: Duplexed Safety Control Unit (for Vnet/IP, Rack Mountable Type, Wide Range Temperature Type)

For details, refer to the general specification “Safety Control Units for Vnet/IP (Rack Mountable Type), Duplexed
Safety Control Units (Rack Mountable Type)” (GS 32Q06D10-31E).

Yokogawa Electric Corporation GS 32Q01B30-31E

2-9-32, Nakacho, Musashino-shi, Tokyo, 180-8750 Japan ©Copyright Sep. 2013 (YK)
6th Edition Nov. 27, 2015 (YK)
<<Contents>> <<Index>> 2
Software
CFS1300 Safety Control Functions Package (for SSC60)
CFS1350 Node Expansion Package (for SSC60)
CFS1355 Node Expansion Package for SCS Simulator (for SSC60)
CFS1100 Safety Control Functions Package (for SSC50)
CFS1170 Safety Control Functions Package (for SSC57)

For details, refer to the GS “Safety Control Functions Package” (GS 32Q03B10-31E, GS 32Q03B20-31E, or GS
32Q03B25-31E).

 Peripheral Equipment
For more details, refer to the General Specifications for the respective hardware below. As for SSC57, read the
model code “SSC50” as “SSC57” in the following GS.

Items Models General Specifications

Safety Node Unit SNB10D GS 32Q06K10-31E
I/O Modules GS 32P06K60-01EN
Communication Modules ALR111, ALR121, ALE111 GS 32Q06K50-31E, GS 32Q06K51-31E
Unit for Optical Bus Repeater Module SNT10D GS 32Q06K11-31E
Optical ESB Bus Repeater Module SNT401, SNT501, SNT411, SNT511 GS 32Q06L15-31E, GS 32Q06L16-31E
Cables GS 32Q06M10-31E
Terminal Board, Relay Board GS 32Q06L20-31E
Terminal Block GS 32Q06L30-31E
Vnet/IP Interface Card VI702 (*1) GS 33K50C10-50E, GS 33P06B11-31E
Power Supply Bus Unit AEPV7D GS 33K50K41-50E
*1: Firmware revision of VI702 must be 19 or later to connect with Vnet/IP-Upstream narrowband mode.

l Layer 2 Switch (L2SW)

L2SW relays communications among devices connected to the Vnet/IP-Upstream network. The Vnet/IP-Upstream
domain refers to the Vnet/IP-Upstream system area connected by L2SW.

l Layer 3 Switch (L3SW)

L3SW relays communications among Vnet/IP-Upstream domains.

l SNTP Server
SNTP server performs time synchronization via networks. Connect Vnet/IP-Upstream station to SNTP server for
synchronizing its time to the Universal Time, Coordinated (UTC).

 Related Software
For details, refer to the general specifications for the respective software application below.

Items Models General Specifications

SOE Viewer Package CHS2100 GS 32Q02D10-31E
SOE OPC Interface Package CHS2200 GS 32Q05D10-31E
Access Control and Operation History Management Package CHS5170 GS 32Q04D30-31E
FAST/TOOLS Integration Engineering Package CHS5700 GS 32Q04D20-31E

 Document
For details, refer to the general specification below.

Item Model General Specification

Electronic Document CHS5400 GS 32Q01W10-31E

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<<Contents>> <<Index>> 3
n SYSTEM CONFIGURATION
l Minimum System Configuration
The minimum system configuration is composed of the following equipment:
SENG: 1 unit
SCS: 1 unit
Layer 2 switch: 2 units

SENG

BUS1 BUS2

Layer 2 switch Layer 2 switch

BUS1 BUS2

SCS

Even in the minimum configuration of 1 unit of SCS and SENG each, one Layer 2 switch per bus
and therefore, two switches for two busses are required.
When SCS is in operation, the Layer 2 switches of BUS1 and BUS2 must not be powered down
at the same time. F01E.ai

Figure Example of Minimum Configuration of the System

l Maximum System Configuration

Vnet/IP-Upstream domain: Maximum 31 domains
Vnet/IP-Upstream station: Maximum 64 stations per domain
Maximum 1984 stations per system (*1)

*1: Number of nodes connected to Vnet/IP-Upstream must be decided after confirming the validity of communication load.

All Rights Reserved. Copyright © 2013, Yokogawa Electric Corporation GS 32Q01B30-31E Apr. 1, 2014-00
<<Contents>> <<Index>> 4
l Configuration of FAST/TOOLS Integrated System
Vnet/IP-Upstream has 3 network modes: the standard mode, the wide-area mode, and the narrowband mode. For
more details of the network modes, refer to “NETWORK SPECIFICATIONS.”
The relations between the network modes and the SCS models are as follows:

Standard mode Wide-area mode Narrowband mode

SSC60 Yes Yes No
SSC50 Yes Yes No
SSC57 Yes Yes Yes

STARDOM PRM Server/ Domain A

SNTP Server Engineering Field Communication Server/
FAST/TOOLS SENG
PC PRM Client

Vnet/IP- Upstream

SCS SCS

SCS FCN/FCJ
L2SW
L2SW L2SW
FAST/TOOLS
(Redundant Server)
FCN/FCJ FCN/FCJ

SCS SCS Domain B Domain C

L3SW L2SW L3SW L2SW

Vnet/IP- Upstream

FCN/FCJ FCN/FCJ
FAST/TOOLS: YOKOGAWA SCADA System
PRM: Plant Resource Manager
SNTP Server: Simple Network Time Protocol Server
FCN/FCJ: STARDOM Controller
F02E.ai

Figure Example of the ProSafe-RS and FAST/TOOLS Integration System

(for Standard mode and Wide-area mode)

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<<Contents>> <<Index>> 5

PRM Server/ Domain A

SNTP Server Field Communication Server/
FAST/TOOLS SENG
PRM Client

Vnet/IP- Upstream

SSC57 SSC57

SSC57
L2SW
L2SW L2SW
FAST/TOOLS
(Redundant Server)

Domain B Domain C
SSC57 SSC57

L3SW L2SW L3SW L2SW

Vnet/IP-Upstream

FAST/TOOLS: YOKOGAWA SCADA System

PRM: Plant Resource Manager
SNTP Server: Simple Network Time Protocol Server
F01E.ai

Figure Example of the ProSafe-RS and FAST/TOOLS Integration System

(for Narrowband mode)

The Vnet/IP-Upstream system is composed of an SCS, an SENG, HMI of a FAST/TOOLS, and other components.
The SENG software and the FAST/TOOLS should not reside in a single computer.

For operating and monitoring the SCS on a HMI of the FAST/TOOLS, following system revisions for ProSafe-RS and
FAST/TOOLS are required.

SSC60 SSC50 SSC57

ProSafe-RS R2.03 or later R2.02 or later R3.02.10 or later
FAST/TOOLS R9.02 or later R9.02 or later R9.05 SP2 or later
PRM R3.04 or later R3.03 or later R3.12 or later

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<<Contents>> <<Index>> 6
l Example of the Connection with Another System
ProSafe-RS can communicate with other systems through Modbus or DNP3 connections. The following functions are
available using an interference-free serial communication module or Ethernet communication module.
• Subsystem communication function
SCS can communicate as a master station when ProSafe-RS acts as a Modbus master.
• Modbus slave communication function
SCS can communicate as a slave station when the other system acts as a Modbus master.
• DNP3 slave function
SCS can communicate as a DNP3 slave station when the other system acts as a DNP3 master.
This function is available for SSC57 of R3.02.20 or later.

Modbus Communication
Subsystem Modbus Slave
DNP3 slave Function
Communication Function Communication Function
Communication Module
Serial Communication Module X X –
Ethernet Communication Module – X X
X: Supported
–: Not supported

The subsystem communication, modbus slave communication and DNP3 slave functions can be executed
simultaneously; however, subsystem communication function and modbus slave communication function cannot
coexist on one serial communication module. Also, Modbus slave communication function and DNP3 slave function
cannot coexist on one Ethernet communication module.
For communication specifications, refer to “Safety Control Functions Package (GS 32Q03B10-31E)” and “ALR111/
ALR121 Serial Communication Module (GS 32Q06K50-31E)” or “ALE111 Ethernet Communication Module (GS
32Q06K51-31E)”.
An example of the system configuration is shown below:

SENG

Vnet/IP-Upstream

Layer 2 switch Layer 2 switch

SCS

The other system

Modbus Communication
(DCS, SCADA, etc.)
or DNP3 Communication

F03E.ai

l Setting IT security function

The security can be enhanced through the automatic setting at IT security function of ProSafe-RS. To perform this
operation, the integrated FAST/TOOLS needs to be R9.02 or later, PRM needs to be R3.03 or later.

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<<Contents>> <<Index>> 7
n NETWORK SPECIFICATIONS
The ProSafe-RS uses Vnet/IP-Upstream and Ethernet for communications among configured devices.

l Vnet/IP-Upstream
Vnet/IP-Upstream is a gigabit Ethernet-based control network, and provides real-time communication with high
reliability. Vnet/IP-Upstream is a dual-redundant control network, consisting of Bus 1 and Bus 2. Bus 1 is normally
used for control communication to transmit control data; however, when the Bus 1 fails, it automatically switches its
communication path and Bus 2 continues the control communication without stopping.
Following is an outline of network connection of ProSafe-RS system.

SENG

Wide area connection

via dedicated line are
also possible.

BUS1
L3SW
L2SW L2SW L2SW

BUS2 Vnet/IP-Upstream Vnet/IP-Upstream

domain domain
L2SW L2SW L2SW

Vnet/IP-Upstream L3SW
domain

L2SW : Layer 2 switch

SSC60/SSC50/SSC57 L3SW : Layer 3 switch
F04E.ai

Figure Network Configuration

SSC60/SSC50/SSC57 Safety Control Unit is connected with L2SW in Vnet/IP-Upstream domain, and other
equipment like SENG, is connected with L2SW. As redundant Vnet/IP bus is separated as a subnet independent by
bus, L2SW must be equipped in each bus.
Do not connect any two stations in a way that there exist more than one communication path.
Vnet/IP-Upstream has a standard mode, a wide-area mode, and a narrowband mode. Mixed use of the standard
mode and the wide-area mode on the same project is available. ; however, the mixed use of the narrowband mode
and other network mode(s) is not available.

Specifications of each of the network mode are as shown below.

Standard mode Wide-area mode Narrowband mode

In a domain Bandwidth 1 Gbps 100 Mbps or more 2 Mbps or more
Distance between stations 40 km or less 1,000 km or less 10,000 km or less (*1)
Transmission delay 1 ms or less 40 ms or less 500 ms or less
Bus switch over 160 ms or less 480 ms or less 2 sec
Levels of L2SW connections Up to 7/domain Unlimited Unlimited
Time sync accuracy 1 ms or less 5 ms or less 500 ms or less
Between domains Bandwidth 1 Gbps 100 Mbps or more 2 Mbps or more
Distance between stations 10,000 km or less 10,000 km or less (*1)
Transmission delay 250 ms or less 500 ms or less
Bus switch over 600 ms or less 5 sec
Time sync accuracy 5 ms or less 500 ms or less
*1: A satellite communication is applicable; however, an offline download via the satellite communication is not recommended
because it takes longer time.

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<<Contents>> <<Index>> 8
Control Communication
Communication method: Read/write communication, message communication, link transmission
Link transmission period: 100 ms
Transmission specifications
Network topology: Star topology
Transmission redundancy: Dual-redundant (for control network communication only)
Transmission cable: Unshielded twist-pair (UTP) with enhanced category 5 or superior
Communications between Instruments
Distance between the two arbitrary stations in a domain: Maximum 10000 km
One level (a pair) of media converters can be connected in between the instruments.
Connecting Vnet/IP-Upstream domains
Vnet/IP-Upstream domains are connected by layer 3 switches. Each redundant Vnet/IP-Upstream bus is connected
via each layer 3 switch to other domains.
Do not connect any two domains in a way that there exist more than one communication path.
Inter-SCS Safety Communication
SCS can perform inter-SCS safety communication with other SCSs in the same domain as well as in different
domains. The inter-SCS safety communication can be used to construct a safety loop up to SIL 3 (Safety Integrity
Levels) for multiple SCSs via the Vnet/IP-Upstream.

Narrowband
Standard mode / Wide-area mode
Receiving end (Consumer) mode (*1)
SSC50 SSC60 SSC57 SSC57
Sending end (Producer) R2.02.00 to R2.03.00 to R3.02.10 to R3.02.10 to
R3.02.20 R3.02.20 R3.02.20 R3.02.20
Standard mode R2.02.00 to
SSC50 Yes Yes Yes No
/ Wide-area mode R3.02.20
R2.03.00 to
SSC60 Yes Yes Yes No
R3.02.20
R3.02.10 to
SSC57 Yes Yes Yes No
R3.02.20
Narrowband mode (*1) R3.02.10 to
SSC57 No No No Yes
R3.02.20
*1: The mixed use of the narrow band mode and other network mode(s) is not available.

The number of other SCSs where inter-SCS safety communication can be performed by a single SCS is up to 16. (If
bi-directional communication is performed between the same SCSs, include its own SCS in the count.)

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<<Contents>> <<Index>> 9
l Ethernet
Ethernet is a network used for file transfer and information communication among SENG and other general-purpose
Ethernet instruments. Ethernet communication is usually performed via an Ethernet card mounted a computer.
Communication Protocol
Based on IEEE802.3

l ESB Bus
ESB buses are I/O communication buses that connect the safety node units (I/O nodes) with the safety control unit
(CPU node) of the SCS.
The number of Connectable Units
Using SEC402 ESB bus coupler module, up to 13 I/O nodes can be connected to CPU node (SSC60). (*1)
SEC402 has two ports to connect ESB bus. Up to 9 I/O nodes can be connected to each of upper and
lower port. Up to 13 I/O nodes can be connected to SEC402 as a total of upper and lower ports.
Using SEC401 ESB bus coupler module, up to 9 I/O nodes can be connected to CPU node (SSC60/SSC50/
SSC57).

*1: To connect 10 or more I/O nodes, CFS1350 Node Expansion Package is required.
For details, refer to “Safety Control Functions Package (for SSC60), Node Expansion Package (for SSC60)” (GS
32Q03B10-31E).

Transmission Network Specifications

Network topology: Bus topology
Transmission channel redundancy: dual-redundant
Network speed: 128 Mbits/sec
Network cable: dedicated cable (YCB301)
Maximum transmission distance: 10 m (ESB) (*1)

*1: Length of ESB buses must be 10 m or shorter each from upper and lower port of SEC402.

Following is an overview of connection of ESB buses using SEC402 in SSC60D.

ESB bus: Max. 10 m

SEC402
SSC60D Upper

ESB bus

Lower

ESB bus
SSB401
SNB10D SNB10D

ESB bus:
Max. 10 m

ESB bus ESB bus

SNB10D SNB10D

F06E.ai

Figure Connection Overview of SEC402 ESB Bus Coupler Module

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<<Contents>> <<Index>> 10
ESB Bus can be extended by using Optical ESB Bus Repeater Module (SNT401, SNT501, SNT411, SNT511).

Network cable: Fiber-optic cable (*1)

Maximum transmission distance using Optical ESB Bus Repeater (SNT411, SNT511): 50 km (*2)
Network topology: chain type and star type (Chain type and star type can be mixed.)

*1: Fiber-optic Cable Specifications

Connector: LC type (IEC 61754-20 compliant)
Recommended cable: Silica-Based Single-Mode Fiber (JIS C6835 SSMA -9.3/125, IEC 60793-2-50B1.1)
Number of cores: 2
*2: Maximum transmission distance is 5 km in earlier than R1.03.00.
For the other restrictions about the length of fiber-optic cable, refer to “Optical ESB Bus Repeater Module 5 km to 50 km”
(GS 32Q06L15-31E).

Following is an overview of connection of Fiber-optic cable and ESB buses using Optical ESB Bus Repeater Modules
in CPU node.

ESB bus: Max.10 m

ESB bus
CPU Node I/O Node I/O Node

Fiber-optic Cable

Max.
extension ESB bus
I/O Node I/O Node
distance of I/O Node I/O Node
fiber-optic
cables Connect with fiber-optic Cables: 1st stage

Fiber-optic Cable

ESB bus
I/O Node I/O Node I/O Node

ESB bus: Max.10 m

Connect with fiber-optic Cables: Two stages max.

F05E.ai

Figure Overview of ESB Bus and Optical ESB Bus Repeater

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<<Contents>> <<Index>> 11
n SYSTEM REQUIREMENTS
l Hardware Requirements
The Standard Operation and Monitoring Function runs on a computer which meets the following requirements:
For Windows 7
Core2 Duo minimum 2.13 GHz
CPU Required
Xeon dual core minimum 2.0 GHz
Main memory Required 4 GB
Required Free space of minimum 20 GB
Hard disc Free space of minimum 40 GB
Recommended When the operation history database is stored for access control and operation history
management package, free space of minimum 100 GB
Required Minimum SXGA (1280 x 1024) resolution, True Color (min. 16.77 million colors)
Display
For wide screen Minimum WXGA+ (1440 x 900) resolution, True Color (min. 16.77 million colors)
DirectX 9-class GPU(Graphics Processing Unit) that supports
• A WDDM(Windows Driver Display Model) Driver
Graphics Required • Pixel Shader 2.0 in hardware
• 32 bits per pixel
• 128 MB Graphics memory
Expansion slot Required 1 slot is used for Vnet/IP interface (*1)
Mouse Required
Optical disc drive Required DVD-ROM
*1: VI702 is required for Vnet/IP interface card.

For Windows Vista

Core2 Duo minimum 2.13 GHz
CPU Required
Xeon dual core minimum 2.0 GHz
Main memory Required Minimum 2 GB
Required Free space of minimum 20 GB
Hard disc Free space of minimum 40 GB
Recommended When the operation history database is stored for access control and operation history
management package, free space of minimum 100 GB
Required Minimum SXGA (1280 x 1024) resolution, True Color (min. 16.77 million colors)
Display
For wide screen Minimum WXGA + (1440 x 900) resolution, True Color (min. 16.77 million colors)
DirectX 9-class GPU(Graphics Processing Unit) that supports
• A WDDM(Windows Driver Display Model) Driver
Graphics Required • Pixel Shader 2.0 in hardware
• 32 bits per pixel
• 128 MB Graphics memory
Expansion slot Required 1 slot is used for Vnet/IP interface (*1)
Mouse Required
Optical disc drive Required DVD-ROM
*1: VI702 is required for Vnet/IP interface card.

For Windows Server 2008 R2

CPU Required Xeon dual core minimum 2.93 GHz
Main memory Required 4 GB
Required Free space of minimum 20 GB
Hard disc Free space of minimum 40 GB
Recommended When the operation history database is stored for access control and operation history
management package, free space of minimum 100 GB
Required Minimum SXGA (1280 x 1024) resolution, True Color (min. 16.77 million colors)
Display
For wide screen Minimum WXGA+ (1440 x 900) resolution, True Color (min. 16.77 million colors)
DirectX 9-class GPU(Graphics Processing Unit) that supports
• A WDDM(Windows Driver Display Model) Driver
Graphics Required • Pixel Shader 2.0 in hardware
• 32 bits per pixel
• 128 MB Graphics memory
Expansion slot Required 1 slot is used for Vnet/IP interface (*1)
Mouse Required
Optical disc drive Required DVD-ROM
*1: VI702 is required for Vnet/IP interface card.

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<<Contents>> <<Index>> 12
For Windows Server 2008
Core2 Duo minimum 2.13 GHz
CPU Required
Xeon dual core minimum 2.0 GHz
Main memory Required Minimum 2 GB
Required Free space of minimum 20 GB
Hard disc Free space of minimum 40 GB
Recommended When the operation history database is stored for access control and operation history
management package, free space of minimum 100 GB
Required Minimum SXGA (1280 x 1024) resolution, True Color
Display
For wide screen Minimum WXGA + (1440 x 900) resolution, True Color
Expansion slot Required 1 slot is used for Vnet/IP bus interface (*1)
Mouse Required
Optical disc drive Required DVD-ROM

*1: VI702 is required for Vnet/IP interface card.

l Software Requirements

Windows Windows Windows Windows

Windows 7 Windows Vista Server 2008 Server 2008 Server 2003 Server 2003
ProSafe-RS Professional Business Edition Standard Standard Standard Standard
Release No. Edition R2 Edition Edition R2 Edition
64 bit 32 bit 64 bit 32 bit 32 bit
SP1 SP2 SP1 SP2 SP2 SP2
R3.01.00 to R3.02.10 X X X X – (*1) – (*1)
R3.02.20 X X X X – –

X: Compatible –: Not compatible

Note: Service Pack is abbreviated as SP (Example: SP1 stands for Service Pack 1).
*1: The Windows Server 2003 is applicable as the file server of the project database.

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<<Contents>> <<Index>> 13
n CRITERIA FOR THE INSTALLATION ENVIRONMENT
The table below presents the criteria for the environment where the safety control unit and the safety node unit are to
be installed. For computers, bus repeaters, optical bus repeaters, and I/O modules, refer to their respective general
specifications.

Item Specifications Remarks

0 to 60 °C when the ALR111-S1/
–20 to 40 °C (basic safety control unit)
ALR121-S1 is mounted.
Normal operation –20 to 70 °C (wide range temperature safety control
Temperature 0 to 60 °C when the ALE111-S1
unit and safety node unit)
is mounted.
Transportation/storage –40 to 85 °C
Normal operation 5 to 95 % RH (non-condensing) 5 to 85 % RH when the SRM53D/
Humidity
Transportation/storage 5 to 95 % RH (non-condensing) SRM54D/SBM54D is mounted.

Temperature During operation Within ±10 °C/h

change Transportation/storage Within ±20 °C/h
100 to 120 V AC: –15 % to +10 %
Voltage range 220 to 240 V AC: –15 % to +10 %
24 V DC: –10 % to +20 %
Frequency 50/60 Hz ± 3 Hz

Power supply Distortion factor 10 % or less

100 V system: 118 V or larger
Peak value
220 V system: 258 V or larger
Momentary failure 20 ms or less (when receiving the rated AC voltage)
DC power supply ripple rate 1 % P-P maximum
1500 V AC for 1 minute
(for 100 to 120/220 to 240 V AC) Between power & ground
Withstanding voltage
500 V AC for 1 minute terminals
(for 24 V DC)
Between power & ground
Insulation resistance 20 M ohms at 500 V DC
terminals
Apply the grounding system which is defined by the
Grounding
rules and standards of the country or the region.
Dust Maximum of 0.3 mg/m3
Excluding SRM53D/SRM54D/
Corrosive gas ANSI/ISA S71.04 G3 (standard)
SBM54D
Electric field 10 V/m maximum (80 MHz to 1 GHz)
Noise 4 kV or less (direct discharge)
Static electricity
8 kV or less (aerial discharge)
Amplitude: 1.75 mm (5 Hz to 9 Hz)
Continuous vibration
Acceleration: 4.9 m/s2 (9 Hz to 150 Hz)
Amplitude: 3.5 mm (5 Hz to 9 Hz)
Non-continuous vibration
Vibration Acceleration: 9.8 m/s2 (9 Hz to 150 Hz)
Seismic Acceleration: 4.9 m/s2 or less
Horizontal: 4.9 m/s2 or less
Transportation When packaged
Vertical: 9.8 m/s2 or less
Impact 147 m/s2, 11 ms
Altitude 2000 m above sea level or less

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 CONFORMITY STANDARDS
The hardware components of the ProSafe-RS comply with the standards as shown below.
• Functional Safety Standards
• Programmable Controllers Standards
• Application Standards
• Safety Standards
• EMC Conformity Standards
• Standards for Hazardous Location Equipment
• Marine Standards
For details of the conformity standards, refer to the GS “ProSafe-RS Standards Compliant Models” (GS 32P01B60-
01EN).

 TRADEMARKS
• ProSafe, CENTUM and Vnet/IP are registered trademarks of Yokogawa Electric Corporation.
• Windows and Windows Vista are registered trademarks of Microsoft Corporation in the USA and other countries.
• Other company and product names appearing in this document are trademarks or registered trademarks of their
respective holders.

 WARNING AND DISCLAIMER

• In realization of the Safety Instrumented System (SIS), an appropriate competence management system is
required to conform to the Functional Safety Management (FSM) defined in IEC 61508 and IEC 61511. Hence,
YOKOGAWA cannot assure conformance of ProSafe-RS and other related YOKOGAWA products (“Products”)
unless YOKOGAWA or YOKOGAWA’s authorized partners are fully involved in or control engineering, configuration,
adaptation, maintenance, repair and other work in SIS lifecycle.
• In no event shall YOKOGAWA be liable for any result, claim, loss or damage whatsoever arising out of or
in connection with use or inability to use of Products, if any part of engineering, configuration, adaptation,
maintenance, repair, improvement, addition of functions, adjustment or other modification work for the Products is
made or controlled by a person other than YOKOGAWA or YOKOGAWA’s authorized partners.
• Except for the limited warranties agreed upon in writing, YOKOGAWA disclaims all other warranties, express or
implied, in fact or in law, including without limitation, warranties of merchantability, fitness for a particular purpose
and non-infringement. If warranty is provided, repair or replacement of the Products is the exclusive remedy for
breach of warranty.
• In no event shall YOKOGAWA be liable for any indirect or consequential loss or damage incurred arising out of or
in relation to use or inability to use the Products regardless of whether foreseeable or not, whether arising in or for
breach of contract, tort (including negligence), breach of statutory duty or otherwise or whether YOKOGAWA has
been advised of the possibility thereof.

All Rights Reserved. Copyright © 2013, Yokogawa Electric Corporation GS 32Q01B30-31E Nov. 27, 2015-00
Subject to change without notice.