Sinumerik Alarm 4252 PLCIO read error: %1
Parameters:
%1 = PLCIO error code
Definitions:
This alarm indicates that errors occured when reading the PLCIO with the FastPlcCom functionality.
Reactions:
– Alarm display.
Remedy:
Correct the machine data or check the PLC hardware configuration.
Program Continuation:
Clear alarm with the RESET key.Restart part program.
References
- Siemens Diagnostics Guide by Siemens