Problem solving
Controller and I/O
The following sections discuss controller and I/O problems you might encounter.
Subtopics:
Is controller not accessible from DeltaV Explorer?
Are the devices not responding?
Correct loopback connections for DeltaV Serial Cards
Is there a communication error after reinstalling?
Is the system not communicating after configuration?
Has the H1 card failed?
What happens to control on the segment when the H1 card fails?
How can you detect a problem with the backup Link Active Scheduler (LAS)?
What happens to control on the segment when the controller fails?
Is the configuration information missing?
Is controller not in Decommissioned Controllers tree?
Does the controller have an X indicator?
Are control modules not executing at configured scan rate?