Mismatch of Safety Destination Address (F_Dest_Add)

What does 28 mean?

A mismatch has been detected in the PROFIsafe destination address (F_Dest_Add) configured for the safety PLC. This indicates that the PLC's intended communication partner cannot be correctly identified or addressed, leading to communication failures and potentially disabling critical safety functions. Incorrect addressing could result in unintended machine behavior.

• The F_Dest_Add parameter in the safety I/O module's configuration does not match the F_Dest_Add configured in the safety PLC.
• A safety I/O module has been replaced, but the new module was not configured with the correct F_Dest_Add.
• Multiple safety devices on the same PROFIsafe network have inadvertently been assigned the same F_Dest_Add, creating a conflict.
• Error during the safety PLC's download process, leading to a corrupted or incorrect F_Dest_Add being stored in the module.

Click steps to track your progress.

1. 1

   1. Read the current F_Dest_Add parameter value directly from the safety I/O module's diagnostics or properties.

2. 2

   2. Compare the F_Dest_Add value from the module with the F_Dest_Add configured for that specific device in the safety PLC project.

3. 3

   3. If a mismatch exists, download the correct F_Dest_Add configuration from the safety PLC project to the safety I/O module.

4. 4

   4. Check for duplicate F_Dest_Add assignments across all safety modules on the PROFIsafe network within the PLC configuration.

5. 5

   5. Perform a factory reset (if supported) on the safety I/O module, then reconfigure and download the F_Dest_Add.