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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 61356 - Block : File for logfile is being used
Alarm 61356 is triggered when CYCLE106 (a Siemens canned cycle for probing/measurement) attempts to write to a logfile that is already open or locked by another NC program or task. This is a file resource conflict in the NCK that prevents simultaneous write access to the specified logfile parameter.
Siemens 61356 - Block : File for logfile is being used
Block: File for logfile is being used
The log file is already used by an NC program
Root Cause Summary
Alarm 61356 is triggered when CYCLE106 (a Siemens canned cycle for probing/measurement) attempts to write to a logfile that is already open or locked by another NC program or task. This is a file resource conflict in the NCK that prevents simultaneous write access to the specified logfile parameter.
Safety
Causes and Fixes
Access Diagnostics > Parameter > Machine Data (MD) or Startup Data (SD) menu on the control panel. Navigate to MD21090 or search for _PROTNAME[1] parameter.
Do not modify parameters while programs are running on other channels.
Note the current logfile path assigned to _PROTNAME[1]. Verify the file location and name (typically in /NC_PRG/LOGFILES/ directory on SINUMERIK 840D).
Check if the same logfile is referenced in other active NC programs or CYCLE106 calls across multiple channels using program search function in NCK Editor.
Assign a unique logfile path per channel or program instance by modifying _PROTNAME[1] to include channel-specific identifiers (e.g., _PROTNAME[1] = '/NC_PRG/LOGFILES/LOG_CH%_PROTNAME[0]') or append timestamp variables.
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