Request is redundant

What does F00D mean?

The submitted request is redundant, meaning it duplicates a previous or active request. This fault indicates an unnecessary or repeated command.

• Request is redundant

Click steps to track your progress.

1. 1

   Verify the specific PLC logic (rung, routine, or program block) generating the request for re-triggering conditions, persistent command enabling, or improper sequencing.

2. 2

   Inspect physical input devices (sensors, limit switches, pushbuttons) and their wiring associated with the command for chattering, intermittent signals, or loose connections, observing their status in the PLC tags.

3. 3

   Check the HMI/SCADA application's command button configuration, script execution frequency, or data write instructions to ensure commands are not sent multiple times unintentionally.

4. 4

   Analyze the program execution context for the request, including associated timers, counters, or one-shot instructions, to ensure proper clear/reset mechanisms are in place preventing re-execution.