USER I/O CROSS CHECK ERROR(DCS PMC)

What does PW0012 mean?

The DCS PMC detected an error in the user-defined safe I/O cross-check function. This indicates a discrepancy in the monitored user-configured safe I/O signals, potentially affecting user-implemented safety features. A power cycle is required.

• DCS PMC detects inconsistency in user-defined safe I/O signals.
• Faulty user-programmed input or output device influencing safe I/O.
• DCS PMC internal error in comparing user-defined safe I/O states.
• Signal noise or interference on user-defined safe I/O lines.
• Incorrect configuration of user-defined safe I/O within the DCS PMC.

Click steps to track your progress.

1. 1

   Check the status of all user-defined safe I/O signals on the DCS PMC.

2. 2

   Measure signal voltage at the DCS PMC user I/O terminals.

3. 3

   Verify parameter P1-18 (DCS PMC User I/O Configuration) for correct settings.

4. 4

   Inspect the wiring and connections of all user I/O devices.

5. 5

   Review user-defined logic that controls or monitors these I/O points.