iParameter Plausibility Check Failed

What does 16146 mean?

This error indicates that a plausibility check for internal parameters (iParameters) of the safety I/O module has failed. This usually means there's an inconsistency or invalid value in the module's configuration data, which prevents safe operation and can lead to incorrect behavior.

• Incorrect or out-of-range value written to an internal safety parameter (e.g., F_SIL) during configuration download.
• Data corruption within the module's non-volatile memory storing iParameters due to power fluctuations or electromagnetic interference (EMI).
• Mismatch between the firmware version and the loaded configuration parameters, causing an interpretation error.
• Partial or interrupted parameter download process, leaving iParameters in an inconsistent state.

Click steps to track your progress.

1. 1

   Re-download the safety PLC project to the safety I/O module, ensuring a complete and error-free transfer.

2. 2

   Verify all safety-relevant parameters (e.g., F_Dest_Add, F_Source_Add, F_WD_Time) in the PLC programming software are within valid ranges.

3. 3

   Perform a factory reset of the safety I/O module (if supported via software or hardware switch) to clear all iParameters.

4. 4

   Check the 24VDC supply voltage at the module's terminals for stability (e.g., using a multimeter set to DCV, ensuring >22VDC).