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84 Rockwell Automation Publication 1756-RM100F-EN-P - October 2018
Chapter 4 Replacement Considerations with Safety Applications
Applications with
1734-AENTR Series A Modules If your system includes 1734-AENTR Series A modules and you update to a
GuardLogix 5580 controller, reconnection events can result in a failure to
connect. The modules display error code 16#203 (connection time out) or
16#117 (invalid connection POINT). Rockwell Automation recommends
that you upgrade to 1734-AENTR Series B or later modules.
Safety Signature The safety signature consists of an ID number, date, and time that uniquely
identifies the safety portion of a project. This signature includes safety logic,
data, and configuration.
• Compact GuardLogix 5370 and GuardLogix 5570 controllers in SIL1
or SIL2 configuration did not require safety signature.
• Compact GuardLogix 5370 and GuardLogix 5570 controllers in a SIL3
configuration, required a safety signature.
• For Compact GuardLogix 5380 and GuardLogix 5580 controllers in a
SIL2 configuration (safety controller only), a safety signature is required
for up to SIL2.
• For GuardLogix 5580 controllers in a SIL3 configuration (primary
safety controller and safety partner), a safety signature is required.
For Compact GuardLogix 5380 and GuardLogix 5580 controllers, the safety
signature ID is now 256-bit.
Compact GuardLogix 5370 and GuardLogix 5570
Controllers Safety Signature ID
Compact GuardLogix 5380 and GuardLogix 5580 Controllers
Safety Signature ID