Allen-Bradley 1734-IB8S User manual

Point Guard I/O Safety Modules
Catalog Numbers 1734-IB8S, 1734-OB8S, 1734-IE4S, 1734-OBV2S
User Manual
Original Instructions

Important User Information
Read this document and the documents listed in the additional resources section about installation, configuration, and
operation of this equipment before you install, configure, operate, or maintain this product. Users are required to
familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws,
and standards.
Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are
required to be carried out by suitably trained personnel in accordance with applicable code of practice.
If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may
be impaired.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from
the use or application of this equipment. In case of malfunction or damage, no attempts at repair should be made. The
module should be returned to the manufacturer for repair. Do not dismantle the module.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and
requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or
liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or
software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation,
Inc., is prohibited
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
Labels may also be on or inside the equipment to provide specific precautions.
WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous
environment, which may lead to personal injury or death, property damage, or economic loss.
ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property
damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence.
IMPORTANT Identifies information that is critical for successful application and understanding of the product.
SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous
voltage may be present.
BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may
reach dangerous temperatures.
ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to
potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL
Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).

Rockwell Automation Publication 1734-UM013N-EN-P - September 2017 3

4Rockwell Automation Publication 1734-UM013N-EN-P - September 2017

Rockwell Automation Publication 1734-UM013N-EN-P - September 2017 5
Table of Contents
Preface Terminology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Additional Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Chapter 1
POINT Guard I/O Overview Understand Suitability for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Installing and Replacing Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Securing the System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
POINT Guard I/O Modules in CIP Safety Systems . . . . . . . . . . . . . . 19
1734-IB8S Digital Input Module Features . . . . . . . . . . . . . . . . . . . 19
1734-OB8S Safety Digital Output Module Features . . . . . . . . . . 20
1734-OBV2S POINT Guard I/O Module Features . . . . . . . . . . 20
1734-IE4S Safety Analog Input Module Features. . . . . . . . . . . . . 20
Programming Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
CIP Safety Architectures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Safety Application Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Chapter 2
Safety Inputs, Safety Outputs,
and Safety Data
Safe States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
POINT Guard Digital I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . 25
POINT Guard I/O Analog Input Module. . . . . . . . . . . . . . . . . . . 26
Safety Inputs (1734-IB8S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Using a Test Output with a Safety Input. . . . . . . . . . . . . . . . . . . . . 26
Single-channel Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Dual-channel Mode and Discrepancy Time. . . . . . . . . . . . . . . . . . 29
Dual-channel, Equivalent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Dual-channels, Complementary . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Safety Input Fault Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Input Delays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Safety Analog Inputs (1734-IE4S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Input Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Scaling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Digital Input Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Sensor Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Channel Offset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Process Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Using a Single-channel Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Dual-channel Equivalent Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Tachometer Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Safety Outputs
(1734-OB8S and 1734-OBV2S). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Safety Output with Test Pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Dual-channel Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Single-channel Mode, 1734-OB8S Only . . . . . . . . . . . . . . . . . . . . . 43
Safety Output Fault Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

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Muting Lamp Operation (1734-IB8S) . . . . . . . . . . . . . . . . . . . . . . . . . . 44
I/O Status Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Digital I/O Status Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Analog I/O Status Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Chapter 3
Guidelines for Placing Power
Supplies and Modules in a System
Choosing a Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Power Supply Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Example 1: Isolating Field Power Segments . . . . . . . . . . . . . . . . . . 49
Example 2: POINT Guard I/O Used with AC I/O Modules. . 50
Placing Series A Digital and Analog Modules . . . . . . . . . . . . . . . . . . . . 51
Placing Series B Digital Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Chapter 4
Install the Module Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
European Hazardous Location Approval . . . . . . . . . . . . . . . . . . . . 55
North American Hazardous Location Approval. . . . . . . . . . . . . . 56
Environment and Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Prevent Electrostatic Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Mount the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Install the Mounting Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Connect the Module to the Mounting Base. . . . . . . . . . . . . . . . . . 59
Connect the Removable Terminal Block . . . . . . . . . . . . . . . . . . . . 60
Remove a Mounting Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Wire Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Terminal Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Connection Details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Wiring Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Emergency Stop Dual-channel Devices . . . . . . . . . . . . . . . . . . . . . . 67
Single-channel Safety Contactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Dual-channel Safety Contactors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Bipolar Safety Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Safety Analog Input Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Chapter 5
Configure the Module in a
GuardLogix Controller System
Set up the Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Add and Configure the Ethernet Bridge. . . . . . . . . . . . . . . . . . . . . . . . . 80
Add and Configure the 1734 Ethernet Adapter . . . . . . . . . . . . . . . . . . 81
Add and Configure Safety Digital Input Modules . . . . . . . . . . . . . . . . 84
Add the Safety Digital Input Module. . . . . . . . . . . . . . . . . . . . . . . . 84
Configure the Safety Digital Inputs . . . . . . . . . . . . . . . . . . . . . . . . . 89
Configure the Test Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Add and Configure Safety Digital Output Modules . . . . . . . . . . . . . . 93
Add the Safety Digital Output Module . . . . . . . . . . . . . . . . . . . . . . 93
Configure the Safety Digital Outputs . . . . . . . . . . . . . . . . . . . . . . . 97
Add and Configure Safety Analog Input Modules. . . . . . . . . . . . . . . . 98

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Table of Contents
Add the Safety Analog Input Module . . . . . . . . . . . . . . . . . . . . . . . 98
Configure the Safety Analog Input Channel Operation. . . . . . 101
Configure the Safety Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . 102
Configure Safety Analog Input Alarms (Optional) . . . . . . . . . . 103
Configure Tachometer Operation . . . . . . . . . . . . . . . . . . . . . . . . . 105
Values and States of Tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Configure Safety Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Configuration Ownership . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Save and Download the Module Configuration . . . . . . . . . . . . . . . . . 111
Update POINT Guard I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Chapter 6
Configure the Module for a
SmartGuard Controller
Before You Begin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Set the Node Address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Auto-addressing with a 1734-PDN Adapter . . . . . . . . . . . . . . . . . . . . 116
Set Up Your DeviceNet Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Configure the POINT Guard I/O Modules . . . . . . . . . . . . . . . . . . . . 119
Configure Digital Safety Inputs and Test Outputs. . . . . . . . . . . 119
Configure Digital Safety Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Configure Safety Analog Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Configure the SmartGuard Controller . . . . . . . . . . . . . . . . . . . . . . . . . 128
Set Up the Input and Output Connections . . . . . . . . . . . . . . . . . 128
Complete the Set Up of the SmartGuard Controller. . . . . . . . . 132
Save and Download Module Configuration . . . . . . . . . . . . . . . . . . . . 133
Chapter 7
Configuring Safety Connections
between a GuardLogix Controller
and POINT Guard I/O Modules on a
DeviceNet Network
Configure the Module in RSNetWorx for DeviceNet Software . . 135
Add the POINT Guard I/O Module to the Controller Project. . . 136
Complete the Safety Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Download the DeviceNet Network Configuration. . . . . . . . . . . . . . 142
Verify Your DeviceNet Safety Configuration . . . . . . . . . . . . . . . . . . . 143
Determine If Devices Can Be Verified. . . . . . . . . . . . . . . . . . . . . . 144
Select Devices to Verify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Review the Safety Device Verification Reports . . . . . . . . . . . . . . 147
Lock Safety Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Chapter 8
Replacing POINT Guard I/
OModules
The Safety Network Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Manually Setting the Safety Network Number. . . . . . . . . . . . . . . . . . 150
Resetting a Module to Out-of-box Condition. . . . . . . . . . . . . . . . . . . 151
By Using the Logix Designer Application . . . . . . . . . . . . . . . . . . . 152
By Using RSNetWorx for DeviceNet Software. . . . . . . . . . . . . . 153
Replace a Module in a GuardLogix System on an EtherNet/IP Network
154
Replacement with `Configure Only When No Safety Signature
Exists’ Enabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

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Replacement with ‘Configure Always’ Enabled. . . . . . . . . . . . . . 159
Replace a Module When Using a SmartGuard or GuardLogix
Controller on a DeviceNet Network . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Appendix A
Indicators Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Network Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Configuration Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
1734-IE4S Sensor Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
1734-IE4S Safety Analog Input Status . . . . . . . . . . . . . . . . . . . . . . . . . 168
1734-IB8S Safety Input Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
1734-OB8S Safety Output Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
1734-OBV2S Safety Output Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Appendix B
Get I/O Diagnostic Status from
Modules in
Logix Systems
Message Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Configure the Message Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Class, Instance, and Attribute Data for I/O Modules . . . . . . . . . . . . 173
Appendix C
Specifications Technical Specifications for Series A Modules . . . . . . . . . . . . . . . . . . 177
Safety Digital Input Module Specifications . . . . . . . . . . . . . . . . . 177
Safety Digital Output Module Specifications. . . . . . . . . . . . . . . . 179
Safety Analog Input Module Specifications . . . . . . . . . . . . . . . . . 180
Technical Specifications for Series B Modules . . . . . . . . . . . . . . . . . . 189
Safety Digital Input Module Specifications . . . . . . . . . . . . . . . . . 189
Safety Digital Output Module Specifications. . . . . . . . . . . . . . . . 192
Safety Digital Output Module Specifications 1734-OBV2S . . . . . . 194
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Appendix D
Safety Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Series A Safety Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Series B Safety Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Product Failure Rates (failures per hour) . . . . . . . . . . . . . . . . . . . . . . . 209
Appendix E
Configuration Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Appendix F
I/O Assemblies Input Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

Rockwell Automation Publication 1734-UM013N-EN-P - September 2017 9
Table of Contents
Output Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Analog Input Assemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Configuration Assemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Using Data from Modules Configured Via the Generic Profile . . . 225

10 Rockwell Automation Publication 1734-UM013N-EN-P - September 2017
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Notes:

Rockwell Automation Publication 1734-UM013N-EN-P - September 2017 11
Summary of Changes
This manual contains new and updated information as indicated in the following
table.
Topic Page
Updated important statement on grounding. 62

12 Rockwell Automation Publication 1734-UM013N-EN-P - September 2017
Preface
Notes:

Rockwell Automation Publication 1734-UM013N-EN-P - September 2017 13
Preface
Thoroughly read and understand this manual before installing and operating a
system that uses POINT Guard I/O™ modules.
Always observe the following guidelines when using a module. In this manual, we
use safety administrator to mean a person who is qualified, authorized, and
responsible to secure safety in the design, installation, operation, maintenance,
and disposal of the ‘machine’.
•Keep this manual in a safe place where personnel can refer to it when
necessary.
•Use the module properly according to the installation environment,
performance ratings, and functions of the machine.
See Understand Suitability for Use on page 15 and Safety Precautions on
page 17.
Product specifications and accessories can change at any time. Consult with your
Rockwell Automation representative to confirm specifications of purchased
product. Dimensions and weights are nominal and are not for manufacturing
purposes, even when tolerances are shown.
Consult your Rockwell Automation representative if you have any questions or
comments. Also refer to the related documentation, which is listed on page 14, as
necessary.
Terminology Table 1 - Common Terms
Term Means
Connection Logical communication channel for communication between nodes. Connections are
maintained and controlled between masters and slaves.
EDS Electronic data sheet, a template that is used in RSNetWorx™ software to display the
configuration parameters, I/O data profile, and connection-type support for a given I/O
module. RSNetWorx™ software uses these simple text files to identify products and
commission them on a network.
ODVA Open DeviceNet Vendor Association,a nonprofit association of vendors that are established
for the promotion of CIP networks.
PFD Probability of failure on demand, the average probability of a system to fail to perform its
design function on demand.
PFH Probability of failure per hour, the probability of a system to have a dangerous failure occur
per hour.
Proof test Periodic test that detects failures in a safety-related system so that, if necessary, the system
can be restored to an as-new condition or as close as practical to this condition.
SNN Safety network number, which uniquely identifies a network across all networks in the
safety system. You are responsible for assigning a unique number for each safety network or
safety subnet within a system.
Standard Devices or portions of devices that do not participate in the safety function.

14 Rockwell Automation Publication 1734-UM013N-EN-P - September 2017
Preface
Additional Resources These documents contain additional information concerning related products
from Rockwell Automation.
You can view or download publications at
http://www.rockwellautomation.com/literature/. To order paper copies of
technical documentation, contact your local Allen-Bradley distributor or
Rockwell Automation sales representative.
Resource Description
POINT I/O™ Selection Guide, publication1734-SG001 Provides selection information for POINT I/O™ modules. Additional publication references
are listed as well.
GuardLogix® 5570 Controllers User Manual, publication 1756-UM022 Provides information on how to install, configure, program, and use GuardLogix 5570
controllers in Studio 5000 Logix Designer® projects.
GuardLogix 5570 Controller Systems Safety Reference Manual, publication 1756-RM099 Provides information on safety application requirements for GuardLogix 5570 controllers
in Studio 5000 Logix Designer projects.
GuardLogix Controller Systems Safety Reference Manual, publication 1756-RM093 Provides information on safety system requirements and describes the GuardLogix®
controller system.
GuardLogix Controllers User Manual, publication 1756-UM020 Provides information on how toinstall, configure, program, anduse GuardLogix
controllers in RSLogix 5000® projects.
GuardLogix Safety Application Instructions Safety Reference Manual,
publication 1756-RM095 Provides reference information that describes the GuardLogix Safety Application
Instruction Set.
SmartGuard 600 Controllers Safety Reference Manual, publication1752-RM001 Describes SmartGuard™ 600-specific safety requirements and controller features.
Field Potential Distributor Installation Instructions, publication 1734-IN059 Provides installation information on 1734-FPD distributors.
POINT I/O 24V DC Expansion Power Supply Installation Instructions,
publication 1734-IN058 Provides installation information on 1734-EP24DC power supplies.
POINT I/O 120/240VAC Expansion Power Supply Installation Instructions,
publication 1734-IN017 Provides installation information on 1734-EPAC power supplies.
POINT I/O Wiring Base Assembly Installation Instructions, publication 1734-IN511 Provides installation information on 1734-TB and 1734-TBS assemblies.
POINT I/O One-piece Wiring Base Assembly Installation Instructions,
publication 1734-IN028 Provides installation information on 1734-TOP, 1734-TOPS, 1734-TOP3, and 1734-TOP3S
assemblies.
ODVA Media Planning and Installation Guide, http://www.odva.org Describes the required media components and how to plan for and install these required
components.
Industrial Automation Wiring and Grounding Guidelines, publication1770-4.1 Provides general guidelines for installing a Rockwell Automation industrial system.
Product Certifications website, http://www.rockwellautomation.com/global/
certification/overview.page Provides declarations of conformity, certificates, and other certification details.

Rockwell Automation Publication 1734-UM013N-EN-P - September 2017 15
Chapter 1
POINT Guard I/O Overview
Use the POINT Guard I/O™ safety modules in the POINT I/O™ platform to
distribute safety I/O on a safety-control network that meets the requirements up
to and including SIL CL3, and PLe, Cat. 4 as defined in IEC 61508, IEC 61511,
IEC 62061, and ISO 13849-1. Guard I/O modules can be used with
GuardLogix® controllers, Compact GuardLogix controllers, and SmartGuard™
Controllers.
You can configure the modules for use on DeviceNet networks by using the
network configuration tool, RSNetWorx™ for DeviceNet software. For Ethernet
networks, use the GuardLogix programming tool, the Logix Designer
application.
Understand Suitability for
Use
Rockwell Automation is not responsible for conformity with any standards,
codes, or regulations that apply to the combination of the products in your
application or use of the product. See Standards on page 199 for more
information.
Take all necessary steps to determine the suitability of the products for the
systems, machine, and equipment with which it is used.
Know and observe all prohibitions of use applicable to these products.
Use this equipment within its specified ratings.
Never use these products for an application that involves serious risk to life or
property without making sure that the system as a whole was designed to address
the risks. Be sure that Rockwell Automation products are properly rated and
installed for the intended use within the overall equipment or system.
Only download firmware and access product release notes from the Rockwell
Automation official download portal at http://www.rockwellautomation.com/
rockwellautomation/support/pcdc.page.
Do not download firmware from non-Rockwell Automation sites.
Topic Page
Understand Suitability for Use 15
Safety Precautions 17
POINT GuardI/O Modules in CIP Safety Systems 19
Safety Application Requirements 22

16 Rockwell Automation Publication 1734-UM013N-EN-P - September 2017
Chapter 1 POINT Guard I/O Overview
Verify that the POINT Guard I/O firmware revision is correct before you
commission the safety system. Firmware information for safety I/O modules is
available at
http://www.rockwellautomation.com/products/certification/safety.
Verify that a safety administrator conducts a risk assessment on the machine and
determines module suitability before installation.
TIP
Field power must be applied to the 1734-IE4S module when updating
firmware.
ATTENTION: Personnel responsible for the application of safety-related
programmable electronic systems (PES) shall be aware of the safety
requirements in the application of the system and shall be trained in the use of
the system.
ATTENTION: Use only appropriate components or devices that comply with
relevant safety standards that correspond to the required safety category and
safety integrity level.
•Conformity to requirements of the safety category and safety integrity level
must be determined for the entire system.
•We recommend that you consult a certification body regarding assessment of
conformity to the required safety integrity level or safety category.
You are responsible for confirming compliance with the applicable standards for
the entire system.
Table 1 - Requirements for Controlling Devices
Device Requirement Allen-Bradley® Bulletin Safety Components
Emergency stop switches Use approved devices with direct opening mechanisms that comply with IEC/EN
60947-5-1. Bulletin 800F, 800T
Door interlocking switches,
limit switches Use approved devices with direct opening mechanisms that comply with IEC/EN 60947-5-1 and capable of switching microloads of
24V DC, 3 mA.
Bulletin 440K, 440G, 440H for interlock switch
Bulletin 440P, 802T for limit switch
Safety sensors Use approved devices that comply with the relevant product standards, regulations,
and rules in the country where used. Any Guardmaster® product
Relays with forcibly- guided
contacts, contactors Use approved devices with forcibly guided contacts that comply with EN 50205. For feedback purposes, use devices with contacts capable of switching micro loads of
24V DC, 3 mA.
Bulletin 700S, 100S
Other devices Evaluate whether devices used are appropriate to satisfy the requirements of safety
category levels. -

Rockwell Automation Publication 1734-UM013N-EN-P - September 2017 17
POINT Guard I/O Overview Chapter 1
Safety Precautions Observe these precautions for proper use of POINT Guard I/O modules.
Installing and Replacing Modules
When you clean a module, do not use the following:
•Thinner
•Benzene
•Acetone
ATTENTION: As serious injury can occur due to loss of required safety function,
follow these safety precautions.
•Never use test outputs as safety outputs. Test outputs are not safety outputs.
•Do not use Ethernet, DeviceNet, or ControlNet standard I/O data or explicit
message data as safety data.
•Do not use light-emitting diode (LED) status indicators on the I/O modules for
safety operations.
•Do not connect loads beyond the rated value to the safety outputs.
•Apply properly specified voltages to the module. Applying inappropriate
voltages can cause the module to fail to perform it’s specified function, which
could lead to loss of safety functions or damage to the module.
•Wire the POINT Guard I/O modules properly following the wiring requirements
and guidelines in Wire Modules on page 61.
•Set unique network node addresses before connecting devices to the network.
•Perform testing to confirm that device wiring, configuration, and operation is
correct before starting system operation.
•Do not disassemble, repair, or modify the module. This can result in loss of
safety functions.
ATTENTION:
•Clear previous configuration data before connecting devices to the network or
connecting input or output power to the device.
•Configure the replacement device properly and confirm that it operates
correctly.
•After installation of the module, a safety administrator must confirm the
installation and conduct trial operation and maintenance.

18 Rockwell Automation Publication 1734-UM013N-EN-P - September 2017
Chapter 1 POINT Guard I/O Overview
Securing the System
To secure access to the [device] by authorized users only, consider these options:
•Password protect the source and execution of the control program
•Remove the key from the controller
•Deploy EtherNet/IP devices in accordance with recommended
architectures and concepts. See the Converged Plantwide Ethernet
(CPwE) Design and Implementation Guide, publication ENET-TD001
•Implement physical barriers, such as locked cabinets
To secure access to the system, consider these options:
•Follow industry best practices to harden your personal computers and
servers, including anti-virus/anti-malware and application whitelisting
solutions. These recommendations are published in Knowledgebase article
KB546987.
•Develop and deploy backup and disaster recovery policies and procedures.
Test backups on a regular schedule.
•Minimize network exposure for all control system devices and systems, and
verify that they are not accessible from the Internet.
•Locate control system networks and devices behind firewalls and isolate
them from the business network.
•Subscribe to Rockwell Automation's Security Advisory Index,
Knowledgebase article KB54102 so you have access to information about
security matters that affect Rockwell Automation products.

Rockwell Automation Publication 1734-UM013N-EN-P - September 2017 19
POINT Guard I/O Overview Chapter 1
POINT Guard I/O Modules in
CIP Safety Systems
POINT Guard I/O modules are used in the POINT I/O platform and
implement CIP Safety protocol extensions over EtherNet/IP and DeviceNet
networks to communicate safety messages. POINT Guard I/O modules connect
to EtherNet/IP or DeviceNet networks via these network adapters.
Distributed I/O communication for safety I/O data is performed through safety
connections that support CIP Safety over an EtherNet/IP or DeviceNet
network. Data processing is performed in the safety controller. A control
monitors the status and fault diagnostics of POINT Guard I/O modules.
In addition to I/O state data, the modules include status data for monitoring I/O
faults within each circuit.
A password can help protect the configuration information of the modules.
1734-IB8S Digital Input Module Features
•Safety digital inputs
–Safety devices, such as Emergency Stop Push Button, gate switches, and
safety light curtains, can be connected.
–Dual-channel mode evaluates consistency between two input signals
(channels), which allows use of the module for safety Category 3 and 4
and in applications that are rated up to and including Performance
Level e/SIL CL3 when both channels' Point Mode configurations are
set to Safety Pulse Test.
–Single-channel mode evaluates one input signal (channel), which allows
use of the module for safety Category 2 and in applications that are
rated up to and including Performance Level d/SIL CL 2 when the
channel's Point Mode configuration is set to Safety Pulse Test.
–You can configure a discrepancy time to control how long two channels
are allowed to be discrepant before a fault is declared.
–An external wiring short circuit check is possible when inputs are wired
in combination with test outputs. The module must be wired in
combination with test outputs when this function is used.
–Independently adjustable on and off delays are available per channel.
Table 2 - Network Adapters
Network System Adapter(1)
(1) Not compatible with 1734-ADN, 1734-ADNX, 1734-APB, or 1734-ACNR adapters.
EtherNet/IP GuardLogix 1734-AENT (Firmware Revision 3 or later)
1734-AENTR
DeviceNet SmartGuard or GuardLogix 1734-PDN

20 Rockwell Automation Publication 1734-UM013N-EN-P - September 2017
Chapter 1 POINT Guard I/O Overview
•Test outputs (digital input modules only)
–Separate test outputs are provided for short circuit detection of a safety
input (or inputs).
–Power (24V) can be supplied to devices, such as safety sensors.
–Test outputs can be configured as standard outputs.
–Specific test outputs can be used for broken-wire detection of a muting
lamp.
1734-OB8S Safety Digital Output Module Features
•Solid-state outputs
•Dual-channel mode provides redundant control by using two output
signals (channels), which allows use of the module for safety Category 3
and 4, and applications that are rated up to and including Performance
Level e/SIL CL3 when both channels' Point Mode configurations are set
to Safety Pulse Test.
•Single-channel mode provides control by using one output signal
(channel), which allows use of the module for safety Category 2, and
applications that are rated up to and including Performance Level d/SIL
CL2 when the channel's Point Mode configuration is set to Safety Pulse
Te s t .
•Safety outputs can be pulse-tested to detect field wiring short circuits to
24V DC.
1734-OBV2S POINT Guard I/O Module Features
•4 Bipolar outputs (2 pairs)
•Dual-channel mode provides redundant control by using two output
signals (channels), which allows use of the module for safety Category 3
and 4, and applications that are rated up to and including Performance
Level e/SIL CL3 when both channels' Point Mode configurations are set
to Safety Pulse Test.
•Safety outputs can be pulse-tested to detect field wiring short circuits to
24V DC (for the sourcing output of the bipolar pair) and ground (for the
sinking output of the bipolar pair).
1734-IE4S Safety Analog Input Module Features
•Connection of up to four voltage or current sensors.
•Sensor power outputs are individually current-limited and monitored.
IMPORTANT
1734-OB8S Single-channel mode is only certified for functional safety
applications with process safety times greater than or equal to 600 ms; or,
applications with demand rates less than or equal to 1 demand per minute.