APS: Ncs error %d in %x.
Bosch Rexroth · Motion Control
What does 895 mean?
An NCS (Network Communication System) function called within the APS (Application Processing System) subsystem returned an error. This is a PLC error, indicating a failure in network communication services within the application, with no error recovery possible.
Common Causes
- NCS function called in APS subsystem returned an error.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Inspect all network cables and connectors (e.g., Ethernet, Sercos, Profinet) connected to the Bosch Rexroth motion control system and the associated PLC for physical damage, proper routing, and secure connections.
- 2
Verify the network configuration parameters (e.g., IP addresses, subnet masks, gateway, device IDs, communication protocols) on both the Bosch Rexroth motion controller and the PLC against the documented system setup.
- 3
Measure the supply voltage at the input terminals of the Bosch Rexroth motion controller, the PLC, and any intermediate network switches to ensure they are within the manufacturer's specified range.
- 4
Check all diagnostic LEDs and status messages on the Bosch Rexroth motion controller, the PLC, and active network components for specific error indications related to network communication.
- 5
Verify the integrity of the PLC application program, specifically communication blocks and their setup within the APS, by comparing it to a known good backup if available.