Rockwell Automation Publication 1756-RM012B-EN-P - April 2018 63
Chapter 7
Monitor Status and Handle Faults
The GuardLogix architecture provides you with many ways to detect and react
to faults in the system. The first way that you can handle faults is to verify that
you have completed the checklists for your application (see Appendix D
on
page 89
).
Status Indicators
For details on status indicator operation, see the user manual for the controller:
• ControlLogix 5580 and GuardLogix 5580 Controllers User Manual,
publication 1756-UM543
• CompactLogix 5380 and Compact GuardLogix 5380 User Manual,
publication 5069-UM001
Monitoring System Status
You can view the status of safety tag connections. You can also determine
current operating status by interrogating various device objects. It is your
responsibility to determine what data is most appropriate to initiate a
shutdown sequence.
CONNECTION_STATUS Data
The first member of the tag structure that is associated with safety input data
and produced/consumed safety tag data contains the status of the connection.
This member is a pre-defined data type called CONNECTION_STATUS.
Topic Page
Status Indicators 63
Monitoring System Status 63
Safety Faults 66
Safety Partner Fault 68
IMPORTANT Status indicators are not reliable indicators for safety functions. Use them
only for general diagnostics during commissioning or troubleshooting. Do
not attempt to use status indicators to determine operational status.
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