Rockwell Automation Publication 1791ES-UM001G-EN-P - November 2016 27
Chapter 2
About the Modules
Read this chapter for important overview information and precautions for use
for the Guard I/O™ modules that implement the EtherNet/IP safety protocol.
This chapter also includes an overview on how these I/O modules are used
within a safety system.
Before You Begin
In this manual defines safety administrator as a person who is qualified,
authorized, and responsible to secure safety in the design, installation,
operation, maintenance, and disposal of the machine. Follow these guidelines
when using a module.
• Read and understand this manual before installing and operating the
module.
• Keep this manual in a safe and accessible place where personnel 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.
Topic Page
Before You Begin 27
Firmware Information and Downloads 28
Functional Safety Certificates 28
Understand Suitability for Use 28
Follow Precautions for Use 30
I/O Module Overview 31
1791ES-IB16 and 1791ES-IB8XOBV4 Modules North American Hazardous Location Approval 29
Selecting a Power Supply 33
Programming Requirements 34
CIP Safety in EtherNet/IP Safety Architectures 34
Identify Major Parts of the Module 37
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