Allen-Bradley GuardLogix 5570, User Manual

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Rockwell Automation Publication 1756-UM022D-EN-P - May 2017 81
Add, Configure, Monitor, and Replace CIP Safety I/O Devices Chapter 5
View the Maximum Observed Network Delay
When the GuardLogix controller receives a safety packet, the software records
the maximum observed network delay. For safety inputs, the Maximum
Observed Network Delay displays the round-trip delay from the input module
to the controller and the acknowledge back to the input module. For safety
outputs, it displays the round-trip delay from the controller to the output
module and the acknowledge back to the controller. The Maximum Observed
Network Delay is shown on the Safety tab of the Module Properties dialog box.
When online, click Reset to reset the Maximum Observed Network Delay.
Figure 20 - Reset the Max Observed Network Delay
IMPORTANT The actual Maximum Network Delay time from the producer to the
consumer is less than the value displayed in the Maximum Network
Delay field on the Safety tab. In general, the actual maximum message
delay is approximately one-half the Maximum Network Delay value that
is displayed.