Rockwell Automation Allen-Bradley Guard I/O DeviceNet 1732DS-IB8 User manual

User Manual
(Catalog Numbers 1732DS-IB8, 1732DS-IB8XOBV4,
1791DS-IB12, 1791DS-IB8XOB8, 1791DS-
IB4XOW4, 1791DS-IB8XOBV4, 1791DS-IB16
)
Guard I/O DeviceNet Safety
Modules

Important User Information
Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the
Application, Installation and Maintenance of Solid State Controls (publication SGI-1.1 available from your local Rockwell Automation sales
office or online at http://literature.rockwellautomation.com) describes some important differences between solid state equipment and hard-
wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid state equipment, all
persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.
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.
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.
Allen-Bradley, ArmorBlock, CompactBlock, CompactBlock Guard I/O, GuardLogix, GuardPLC, Logix5000, Rockwell Automation, RSLogix 5000, RSLogix Guard Plus!, RSNetWorx, SmartGuard, and TechConnect are trademarks of
Rockwell Automation, Inc.
Trademarks not belonging to Rockwell Automation are property of their respective companies.
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.
IMPORTANT Identifies information that is critical for successful application and understanding of the product.
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
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.

3Publication 1791DS-UM001H-EN-P - April 2009
Summary of Changes
This publication contains new and revised information not in the last release.
Revised Information
See the table for a summary of the major revisions to this manual.
Change Bars
Change bars (as shown with this paragraph) show the areas in this manual that
are different from previous editions and indicate the addition of new or
revised information.
For Revised See
Removed enclosure rating from the table Page 13
Updated safety output timing Pages 27 and 180
Updated important statement about the values and states of tags Page 50
Dual-load bipolar safety output important statement Pages 95 and 96

Publication 1791DS-UM001H-EN-P - April 2009
4Summary of Changes
Notes:

1Publication 1791DS-UM001H-EN-P - April 2009
Table of Contents
Preface What This Preface Contains . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Who Should Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . 5
Common Techniques Used in This Manual. . . . . . . . . . . . . . . 5
Additional Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
How To Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
About the Specifications and Dimensions in This Manual . . . . 6
Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Chapter 1
About the Modules
What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . 7
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Understand Suitability for Use . . . . . . . . . . . . . . . . . . . . . . . . 8
Follow Precautions for Use . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Follow Precautions for Mounting, Wiring, and Cleaning. . . . 11
I/O Module Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
About Catalog Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
About CIP Safety in DeviceNet Safety Architectures . . . . . . . 14
Identify Major Parts of the Modules . . . . . . . . . . . . . . . . . . . 15
Chapter 2
Understand the Operation of
Safety Functions
What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . 19
Safety I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Safety Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Safety Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
I/O Status Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Controlling Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Legislation and Standards . . . . . . . . . . . . . . . . . . . . . . . . . . 31
EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Chapter 3
Install and Connect Your Modules
What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . 35
Install the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Connect I/O Power and I/O Cables . . . . . . . . . . . . . . . . . . . 37
Connect Communication Connectors . . . . . . . . . . . . . . . . . . 39
Set the Node Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Configure the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Publication 1791DS-UM001H-EN-P - April 2009
2Table of Contents
Chapter 4
Configure Modules in RSLogix
5000 Software
What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . 41
Use the Help Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Add Safety Modules to the I/O Configuration Tree . . . . . . . . 41
Use the Module Properties and General Dialogs. . . . . . . . . . 44
Work with the Safety Dialog . . . . . . . . . . . . . . . . . . . . . . . . 51
Work with the Input Configuration Dialog . . . . . . . . . . . . . . 54
Work with Test Output Configuration Dialog . . . . . . . . . . . . 57
Work with the Output Configuration Dialog. . . . . . . . . . . . . 58
Save Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 60
Status Data Supported by Each Module . . . . . . . . . . . . . . . . 60
Chapter 5
Configure Modules in RSNetWorx
Software
What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . 61
Configure a SmartGuard Controller . . . . . . . . . . . . . . . . . . . 61
Chapter 6
Wiring Examples
What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . 85
Examples of Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Chapter 7
Interpret the LED Indicators
What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . 97
1791DS-IB12, 1791DS-IB8XOB8, 1791DS-IB4XOW4 Module LED
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
1791DS-IB8XOBV4, 1791DS-IB16, 1732DS-IB8XOBV4,
1732DS-IB8 Module LED Indicators . . . . . . . . . . . . . . . . . . 100
Chapter 8
Maintain Your Modules
What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . 103
Troubleshoot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Appendix A
DeviceNet Explicit Messages
What This Appendix Contains . . . . . . . . . . . . . . . . . . . . . . 109
Basic Format of Explicit Messages . . . . . . . . . . . . . . . . . . . 109
Explicit Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Appendix B
Probability of Failure on Demand
(PFD), Probability of Failure per
Hour (PFH), and Mean Time
Between (MTBF) Data
What This Appendix Contains . . . . . . . . . . . . . . . . . . . . . . 113
Calculated Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Publication 1791DS-UM001H-EN-P - April 2009
Table of Contents 3
Appendix C
List of Functions
What This Appendix Contains . . . . . . . . . . . . . . . . . . . . . . 115
List of Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Appendix D
Configuration Reference
Information
What This Appendix Contains . . . . . . . . . . . . . . . . . . . . . . 119
Understand Parameter Groups . . . . . . . . . . . . . . . . . . . . . . 119
Allocate Remote I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
I/O Data Supported by Each Module . . . . . . . . . . . . . . . . . 123
I/O Assembly and Reference Data . . . . . . . . . . . . . . . . . . . 131
Appendix E
Get Point Status from Safety I/O
Modules by Using Explicit
Messaging
What This Appendix Contains . . . . . . . . . . . . . . . . . . . . . . 141
Work with 1791DS-IB8XOB8 Modules . . . . . . . . . . . . . . . . 141
Work with 1791DS-IB4XOW4 Modules . . . . . . . . . . . . . . . 145
Work with 1791DS-IB12 Modules. . . . . . . . . . . . . . . . . . . . 148
Appendix F
Create SmartGuard 600 Code: An
Example
What This Appendix Contains . . . . . . . . . . . . . . . . . . . . . . 151
Putting the SmartGuard 600 into Run Mode . . . . . . . . . . . . 175
Appendix G
Specifications
Guard I/O DeviceNet Safety Module 1791DS-IB8XOBV4. . . 177
Guard I/O DeviceNet Safety Module 1791DS-IB12,
1791DS-IB8XOB8, 1791DS-IB4XOW4. . . . . . . . . . . . . . . . . 181
Index

Publication 1791DS-UM001H-EN-P - April 2009
4Table of Contents
Notes

5Publication 1791DS-UM001H-EN-P - April 2009
Preface
What This Preface Contains
This preface describes how to use this manual.
Who Should Use This
Manual
This manual is intended for users of ArmorBlock Guard I/O and
CompactBlock Guard I/O DeviceNet safety I/O modules.
Common Techniques Used
in This Manual
The following conventions are used throughout this manual.
Numbered lists provide sequential steps.
Bulleted lists provide information, not procedural steps.
Additional Resources
Refer to the following as needed for additional help when setting up
and using your modules.
Publication Publication Number
ArmorBlock Guard I/O DeviceNet Module Installation Instructions 1732DS-IN001
CompactBlock Guard I/O DeviceNet Module Installation Instructions 1791DS-IN002
DeviceNet Modules in Logix5000 Control Systems User Manual DNET-UM004
DeviceNet Safety I/O Modules Series 1791DS Installation Instructions - Catalog Numbers 1791DS-IB12,
1791DS-IB8XOB8, 1791DS-IB4XOW4 1791DS-IN001
DeviceNet Safety Scanner for GuardPLC Controllers 1753-UM002
GuardLogix Controller Systems Safety Reference Manual 1756-RM093
GuardLogix Controllers User Manual 1756-UM020
GuardLogix Safety Application Instructions Safety Reference Manual 1756-RM095
GuardPLC Controller Systems User Manual 1753-UM001
GuardPLC Safety Reference Manual 1753-RM002
SmartGuard 600 Controllers Installation Instructions 1752-IN001
SmartGuard 600 Controllers Safety Reference Manual 1752-RM001
SmartGuard 600 Controllers User Manual 1752-UM001

Publication 1791DS-UM001H-EN-P - April 2009
6Preface
How To Use This Manual
Read and understand this manual before using the described
products. Consult your Rockwell Automation representative if you
have any questions or comments. This manual describes how to use
modules.
About the Specifications
and Dimensions in This
Manual
Product specifications and accessories can change at any time based
on improvements and other reasons. Consult with your Rockwell
Automation representative to confirm actual specifications of
purchased product. Dimensions and weights are nominal and are not
for use for manufacturing purposes, even when tolerances are shown.
Terminology
Refer to the table for the meaning of common terms.
This Term Means
Bus off Indicates a status of very high error-count occurrence on a communication cable. A bus off error is detected when the
internal error counter counts more errors than the predetermined threshold value. (The error counter returns to zero
when the master is started or restarted.)
Connection Logical communication channel for communication between nodes. Connections are maintained and controlled
between masters and slaves.
CRTL Connection reaction time limit.
DeviceNet safety An implementation of a safety protocol on a standard DeviceNet network.
EDS Acronym for electronic data sheet, a template that RSNetWorx for DeviceNet software uses to display the
configuration parameters, I/O data profile, and connection-type support for a given DeviceNet safety module. These
are text files used by RSNetWorx for DeviceNet software to identify products and commission them on a network.
L- Output return common.
M Sinking output common channel, output switches to the common voltage.
MTBF Acronym for mean time between failure, the average time between failure occurrences.
ODVA Acronym for Open DeviceNet Vendor Association, a nonprofit association of vendors established for the promotion of
DeviceNet networks.
P Sourcing output channel, output switches to the plus voltage.
PFD Acronym for probability of failure on demand, the average probability of a system to fail to perform its design function
on demand.
PFH Acronym for probability of failure per hour, the probability of a system to have a dangerous failure occur per hour.
Proof test Periodic test performed to detect 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.
S+ Output return 24V.
SNN Acronym for 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 sub-net within a system.
Standard Devices or portions of devices that do not participate in the safety function.

7Publication 1791DS-UM001H-EN-P - April 2009
Chapter 1
About the Modules
What This Chapter Contains
This chapter includes important overview information and precautions
for use of the safety I/O modules that implement the DeviceNet safety
protocol. Also included is an overview on how these I/O modules are
used within a safety system.
Before You Begin
Always observe the following when using a module, noting that in
this manual we use safety administrator to mean a person qualified,
authorized, and responsible to secure safety in the design, installation,
operation, maintenance, and disposal of the machine.
Make sure that a safety administrator who thoroughly
understands the machine to be installed handles the module.
Thoroughly read and understand this manual before installing
and operating the module.
Keep this manual in a safe place where the operator can refer to
it when necessary.
Use the module properly according to the installation
environment, performance, and functions of the machine.
Verify that a safety administrator conducts a risk assessment on
the machine and determines module suitability before
installation.
Verify that the external power supply that provides power to the
I/O modules is safety extra-low voltage (SELV) rated.
Verify that the DeviceNet block safety I/O firmware version is
correct prior to commissioning the safety system, noting that
firmware information related to safety controllers is available at
http://www.rockwellautomation.com/products/certification/
safety/index.html.

Publication 1791DS-UM001H-EN-P - April 2009
8About the Modules
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.
Take all necessary steps to determine the suitability of the product for
the systems, machine, and equipment with which it is used.
Know and observe all prohibitions of use applicable to this product.
Never use the products for an application involving serious risk to life
or property without making sure that the system as a whole was
designed to address the risks and that the Rockwell Automation
product is properly rated and installed for the intended use within the
overall equipment or system.
Follow Precautions for Use
ATTENTION Safety state of the module and its data is defined as the off
state.
Use the module in applications where the safety status for
the module is off (0).
Serious injury may occur due to breakdown of safety outputs.
Do not connect loads beyond the rated value to the safety
outputs.
Serious injury may occur due to loss of required safety
functions. Wire the module properly so that supply voltages
or voltages for loads do not touch the safety outputs
accidentally or inadvertently.
ATTENTION Use dc supply satisfying the following requirements to
prevent electric shock:
A dc power supply with double or reinforced insulation,
for example, according to IED/EN 60950 or EN 50178 or a
transformer according to IEC/EN 61558
A dc supply satisfies requirement for class 2 circuits or
limited voltage/current circuit stated in UL 508

Publication 1791DS-UM001H-EN-P - April 2009
About the Modules 9
ATTENTION Follow these precautions for safe use.
Wire conductors correctly and verify operation of the module
before commissioning systems in which the module is
incorporated. Incorrect wiring may lead to loss of safety
function.
Do not apply dc voltages exceeding the rated voltages to the
module.
Apply properly specified voltages to the module inputs.
Applying inappropriate voltages causes the module to fail to
perform its specified function, which leads to loss of safety
functions or damage to the module.
Never use test outputs as safety outputs in any way. Test
outputs are not safety outputs.
Note that after installation of the module, qualified
personnel must confirm the installation and conduct trial
operation and maintenance.
Note that a safety administrator familiar with the machine in
which the module is to be installed must conduct and verify
the installation.
Do not disassemble, repair, or modify the module. This may
result in loss of safety functions.
Use only appropriate components or devices complying with
relevant safety standards corresponding 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 you consult a certification body
regarding assessment of conformity to the required
safety integrity level.
Note that you must confirm compliance with the applicable
standards for the entire system.
Disconnect the module from the power supply before wiring.
Devices connected to the module may operate unexpectedly
if wiring is performed while power is supplied.

Publication 1791DS-UM001H-EN-P - April 2009
10 About the Modules
For 1791DS-IB4XOW4 modules, follow these instructions on isolating
transformer use. Refer to the isolating transformer figure.
Use an isolating transformer to isolate between over-voltage
category III and II, such as TR1, to conform to IEC 60742.
Be sure the insulation between first input and secondary output
satisfies at least basic insulation of over-voltage category III.
Be sure one side of a secondary output of the isolating
transformer is grounded to prevent electric shock to personnel
due to a short to ground or short to the frame of the isolating
transformer.
Insert fuses, in case of a short to the frame, to protect the
isolating transformer and prevent electric shock to personnel,
per transformer specifications, at points such as F1, F2, and F3.
Use of Isolating Transformer
1791DS-IB4XOW4
44151
L1 L2 L3
400V ac/ 230V ac
MA
MB
Load
III Over-voltage Category II
F1 F3
F2
TR1
F4 F5
MA MB
F1…F8 - Fuses
MA, MB - Electromagnetic Switches
TR1 - Insulated Transformer
F6 F7 F8

Publication 1791DS-UM001H-EN-P - April 2009
About the Modules 11
Follow Precautions for
Mounting, Wiring, and
Cleaning
Observe these precautions to prevent operation failure, malfunctions,
or undesirable effects on product performance.
When mounting modules, observe these precautions.
Use DIN rail that is 35 mm (1.38 in.) wide to mount the module
into the control panel.
Mount modules to DIN rail so that the module does not fall off
the DIN rail, for example, due to vibration.
Leave at least 50 mm (1.96 in.) above and below the module to
allow adequate ventilation and room for wiring for 1791DS-IB8,
1791DS-IB8XOB8, and 1791DS-IB4XOW4 modules.
Leave at least 5 mm (0.6 in.) above and below the module to
allow adequate ventilation and room for wiring for 1732DS-IB8,
1732DS-IB8XOBV4, and 1791DS-IB8XOBV4 modules.
When wiring modules, follow these instructions.
Do not place communication lines and I/O lines in the same
wiring duct or track as high voltage lines.
Wire correctly after confirming the signal names of all terminals.
Do not remove the shield from a module before wiring, but
always remove the shield after completing wiring to be sure of
proper heat dispersion for 1791DS-IB8, 1791DS-IB8XOB8, and
1791DS-IB4XOW4 modules.
Use insulated post terminals (DIN 46228-4 standard) for stranded
wires before connecting the wires.
Tighten screws on communication and I/O connectors securely
using a tightening torque of 0.25…0.3 Nm (2.16…2.59 lb-in).
When cleaning modules, do not use the following.
Thinner
Benzene
Acetone

Publication 1791DS-UM001H-EN-P - April 2009
12 About the Modules
I/O Module Overview
The Guard I/O modules implement the CIP-safety protocol extensions
over DeviceNet networks and provide various features for a safety
system.
Use the modules to construct a safety-control network system that
meets the requirements for Safety Integrity Level 3 (SIL 3) as defined
in IEC 61508, Functional Safety of Electrical, Electronic, and
Programmable Electronic Safety-related Systems, and the requirements
for Safety Category 4 of the EN 954-1 standard.
Remote I/O communication for safety I/O data are performed through
safety connections supporting CIP safety over a DeviceNet network,
and data processing is performed in the safety controller.
The status and fault diagnostics of safety I/O modules is monitored by
a safety PLC through a safety connection using a new or existing
DeviceNet network.
Here is a list of features common to all Guard I/O modules.
CIP-safety protocol conformance
Safety inputs
–Contact output devices, such as emergency stop push
buttons, 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 4.
–The time of a logical discrepancy between two channels can
be monitored using a discrepancy time setting.
–An external wiring short-circuit check is possible by turning
on an input. The module must be wired in combination with
test outputs when this function is used.
–Independently adjustable on and off delay is available per
channel.
Test outputs
–Separate test outputs are provided.
–Broken wires detection is supplied on muting outputs.
–Power (24V) can be supplied to devices, such as safety
sensors.
–Test outputs can be set as standard outputs for use as monitor
outputs.
–All Guard I/O modules have numerous test outputs, of which
some can be used for control and monitoring of a muting
lamp.

Publication 1791DS-UM001H-EN-P - April 2009
About the Modules 13
•Safety outputs
–Solid state outputs
- Dual-channel mode evaluates consistency between two output
signals (channels), which allows use of the module for Safety
Category 4.
–Relay Outputs
- Dual-channel mode evaluates consistency between two output
signals (channels), which allows use of the module for Safety
Category 4.
- Up to 2 A is provided per output point.
- Safety relays can be replaced.
•I/O status data - In addition to I/O data, the module includes status
data to check I/O circuits.
•Security - The configuration information of the module can be
protected by a password.
•Removable I/O connectors - I/O connectors support mechanical
keying.
About Catalog Numbers
See the table for a listing of the types of safety I/O modules.
Types of Safety I/O Modules
Catalog Number Name Safety
Inputs Test
Outputs(1) Safety Outputs
Solid State Relays
1732DS-IB8 Safety input module 8 8 - -
1732DS-IB8XOBV4 Safety I/O module with solid state outputs 8 8 4 bipolar
pairs -
1791DS-IB12 Safety input module 12 4 - -
1791DS-IB8XOB8 Safety I/O module with solid state outputs 8 4 8 -
1791DS-IB4XOW4 Safety I/O module with relay outputs 4 4 - 4
1791DS-IB8XOB4 Safety I/O module with solid state outputs 8 8 4 bipolar
pairs -
(1) Broken wires can be detected on the muting outputs.

Publication 1791DS-UM001H-EN-P - April 2009
14 About the Modules
About CIP Safety in
DeviceNet Safety
Architectures
Use Guard I/O modules in DeviceNet safety architectures as shown in
the figure.
The Guard I/O family is a set of I/O modules that when connected to
a DeviceNet safety network are suitable for applications up to SIL3, as
defined in the IEC 61508 standard, and Safety Category 4, as defined
in the EN 954-1 standard.
Guard I/O Modules in DeviceNet Safety Architectures
Safety input devices such as emergency-stop switches and safety
output devices, such as safety contactors, can be connected to safety
I/O blocks. Standard devices, such as proximity switches,
pushbuttons, or lamps, can also be connected to safety I/O blocks.
Safety PLC controllers or safety network controllers control the safety
outputs. Safety PLC controllers, safety network controllers, or standard
PLC controllers can control the standard outputs.
The modules provide self-diagnostics to test the electronics within the
module. The safety outputs provide a pulse test feature for diagnosing
the external wiring of field actuators. Testing of input wiring is by
connecting the field input devices to one of the pulse test outputs
provided by the modules. Any pulse test outputs not used to test input
wiring can be used as a standard output. At least one of these
standard outputs is configurable with current monitoring to use it for
control and monitoring of a muting lamp.
44196
Logix Controller GuardLogix Controller
Guard PLC Controller
ArmorBlock Guard I/O
Module
CompactBlock
Guard I/O
Module
RSNetWorx,
RSLogix 5000, and
RSLogixGuard Plus
Software
SmartGuard 600
Controller
Safety Communication
Standard Communication
DeviceNet
Scanner
Interface

Publication 1791DS-UM001H-EN-P - April 2009
About the Modules 15
The modules also allow configuration of input points as dual inputs,
and configuration of output points as dual outputs. The module
performs internal diagnostics on I/O channels configured to operate
in Dual mode.
Any discrepancy results in a safety state and status generated for the
master. Configuration of DeviceNet Guard I/O modules is via software
using either the network configuration tool, RSNetWorx for DeviceNet
Safety software, or the PLC programming tool, RSLogix 5000 software.
Identify Major Parts of the
Modules
See the figures that show major parts of the modules.
1791DS-IB4XOW4 Module Identification
1791DS-IB8XOB8 Module Identification
Node Address Switches LED Indicators Safety Relay
I/O Connections 44195
Communication
Connector
1791D S - I B8 XO B8
MS N S LO CK I
N
PW R
O U T
PW
R
0 1 2 3 4 5 6 70 1 2 3 4 5 6 7
C o m p ac t B lo ck
8 Inputs - 8 Outputs 24VDC
Node Address Switches LED Indicators
Communication
Connector
I/O Connectors
44091

Publication 1791DS-UM001H-EN-P - April 2009
16 About the Modules
1791DS-IB12 Module Identification
1791DS-IB8XOBV4 Module Identification
MS N S LO CK I
N
PW R
0 1 2 3 4 5 6 78 9 10 11
C o m p ac t B lo ck
12 Inputs 24VDC
1791D S - I B12
Node Address Switches LED Indicators
Communication
Connector
I/O Connectors
44091
NODE
ADR
82
4
6
0
82
4
6
0
X1X10
Node Address Switches
LED Indicators
I/O Connectors (input)
44224
Communication Connector
LED Indicators
Power Connector I/O Connectors (output)