Rockwell Automation Publication 5069-UM004A-EN-P - April 2019
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Digital Module Operation in a Control System
Chapter 1
Installing and Replacing Modules
Securing Access to the System
For information on how to secure access to the system, see
Safety Application Requirements
Safety application requirements include evaluating the following:
• Probability of failure rates (PFD and PFH)
• System reaction time settings
• Functional verification tests that fulfill appropriate safety-level criteria
Creating, recording, and verifying that the safety signature is also a required
part of the safety application development process. The safety controller
creates the safety signatures. The safety signature consists of an identification
number, date, and time that uniquely identifies the safety portion of a project.
This number includes all safety logic, data, and safety I/O configuration.
For safety system requirements, including information on the SNN, verifying
the safety signature, functional verification test intervals, system reaction time,
and PFD/PFH calculations, see the GuardLogix 5580 and Compact
GuardLogix 5380 Controller Systems Safety Reference Manual, publication
.
You must read, understand, and fulfill the requirements that are described in
this publication before you operate a safety system that uses Compact 5000
I/O safety modules.
ATTENTION:
• Clear previous configuration data before you connect 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.