Error description 237-1303B
Error message
1303B UM: CC%2 %1 CPU1 impermissible instruction processing
Cause of error
Internal software error: There was an attempt to access an impermissible memory area
Error correction
- Please generate a service file soon, reboot the control, and then generate another service file
- Transmit both service files to the Service department for further inspections by HEIDENHAIN