State Industries GFK-0827 manual Changing Fault Category Actions

4

3.faults and failures that are detected in the background.

Faults and failures that are detected immediately are those that are identified within the current sweep. These faults include I/O data corruption, single bit RAM failures, power supply failures, processor failures, VME bus failures, and no response from an addressed module.

Faults and failures that are detected as soon as possible, but not necessarily within the current sweep, include a group of faults that are detected asynchronously to the PLC sweep (Genius faults) or those faults that require a timeout larger than one sweep time to detect the failure. These faults are typically detected within one second and include all Genius faults (circuit faults, loss of block, etc.)

Faults and failures that are detected in the background can be detected within 30 seconds. These faults include address or data line failures, multiple bit RAM failures, EPROM failures, and communication device failures.

Changing Fault Category Actions

Fault category actions can be changed for both non-redundant systems and redundant systems that are not synchronized. When the redundant system is synchronized, the fault category actions cannot be changed.

GFK-0827 Chapter 4 Operation 73