Sinumerik Alarm 27252 PROFIsafe: Slave %1, sign-of-life error
Parameters:
%1 = DP slave address
Definitions:
The specified DP slave no longer communicates with the master. Stop D/E is triggered.
Reactions:
– Mode group not ready.
– NC Start disable in this channel.
– NC Stop on alarm.
– Alarm display.
– Interface signals are set.
Remedy:
Restart F slave modules. Restart the NCK/PLC.
Program Continuation:
Clear alarm with the RESET key. Restart part program
References
- Siemens Diagnostics Guide by Siemens