NCS: Client not signed on.
Bosch Rexroth · Motion Control
What does 842 mean?
An error occurred during the registration of a task as a client within the NCS (Network Communication System). This is a serious system error, indicating a fundamental problem with client registration, with no error recovery possible.
Common Causes
- Error during task registration as a client.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Verify supply voltage at the Bosch Rexroth Motion Control unit's power input terminals against specified nominal values.
- 2
Inspect all network cables (e.g., Ethernet, fieldbus) connected to the Bosch Rexroth Motion Control system for damage, proper seating, and adherence to specifications.
- 3
Check network configuration parameters (e.g., IP addresses, subnet masks, device IDs, station numbers) for the Bosch Rexroth Motion Control unit and all connected client modules in the engineering software (e.g., IndraWorks).
- 4
Verify the firmware versions of the Bosch Rexroth Motion Control unit and any associated client modules for compatibility according to Bosch Rexroth documentation.
- 5
Perform a controlled power cycle of the Bosch Rexroth Motion Control system and interconnected network devices to reinitialize communication.