Sinumerik Alarm 4280 Assignment of NCK input/output byte via MD %1[%2] does not match hardware configuration
%1 = String: MD identifier
%2 = MD array index
When booting, the required input/output module was not found at the slot specified in the MD.
– Alarm display.
– Interface signals are set.
– NC not ready.
– Channel not ready.
– NC Start disable in this channel.
– NC Stop on alarm.
Please inform the authorized personnel/service department. Check hardware and correct the MD if necessary. Note: Monitoring of the hardware configuration is performed independently of the number of activated inputs/outputs (MD 10300 – 10360 FASTIO_ANA(DIG)_NUM_INPUTS(OUTPUTS)).
Switch control OFF – ON.
- Siemens Diagnostics Guide by Siemens