How to Access the Channel Diagnostics Function of a Discrete Module

At a Glance

The Channel diagnostics function displays current errors and where they exist. Errors are classified according to their category:

Internal events:
- inoperative channel
External events:
- link or sensor supply fault
Other events:
- terminal block incorrectly wired
- configuration error
- communication interruption

A channel error appears in the Debug tab when the LED, located in the Error column, turns red.

The following table shows the procedure for accessing the Channel error screen.

Step	Action
1	Access the module's debugging screen.
2	Click on the button situated in the Error column of the inoperative channel. Result: The list of channel errors appears. Note: Channel diagnostics information can also be accessed by program using the `READ_STS` instruction.

Step

Action

Access the module's debugging screen.

Click on the button situated in the Error column of the inoperative channel.

Note: Channel diagnostics information can also be accessed by program using the READ_STS instruction.