6 pulses (arg 0)
K-bus Initialization Error
Beckhoff · CX2100-0914 Embedded PC
What does 6 pulses (arg 0) mean?
The K-bus ERR LED flashes 6 times, with '0' in the argument sequence, indicating a general error during the initialization process of the K-bus. This suggests an internal issue with the Embedded PC responsible for K-bus communication.
Common Causes
- K-bus initialization sequence failed.
- Bus terminals not detected or responding during startup.
- Incorrect K-bus configuration preventing initialization.
- Hardware fault in the K-bus controller.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Replace the Embedded PC, as the error points to a fault in its K-bus initialization hardware or firmware.
Verified technical data. Last updated: March 2026
Related Faults
Source: Beckhoff CX2100-0914 Embedded PC