Beckhoff · TwinCAT 2 NC
The drive lacks a valid I/O output address in the process image. This means the NC system cannot correctly write output data (e.g., control commands, enable signals) to the drive because its process image address is either missing or invalid. This prevents the drive from receiving commands and acting upon them.
Click steps to track your progress.
Access the drive's I/O configuration parameters (e.g., P8-01 for digital output 1, P8-10 for analog output 1) via commissioning software and verify their settings.
Compare the drive's configured I/O output addresses with the PLC/motion controller's expected process image mapping for the drive's outputs.
Perform a re-scan or re-configuration of the drive's I/O modules in the PLC/controller software to regenerate the process image.
Check the communication status of the drive (e.g., using diagnostic LED's or network analysis tools) to ensure a stable connection to the master controller.
Restore the drive's I/O parameter group from a known good backup file and save to non-volatile memory, then power cycle the drive.