Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Servo/Axis · Intermediate · 30-60 minutes

Alarm 15175

Siemens 840D 15175 - Channel block program. Interfaces could not be built

An error has occurred in interface generation mode. The (compiler) error message refers to the program specified here. In particular when loading new cycle program on the NCK, problems can occur if the value settings in machine data $MN_MM_NUM_MAX_FUNC_NAMES and $MN_MM_NUM_MAX_FUNC_PARAM are too sma

Siemens SINUMERIKServo/AxisIntermediate30-60 minutes

15175

Siemens 840D 15175 - Channel block program. Interfaces could not be built

Channel block program. Interfaces could not be built

An error has occurred in interface generation mode. The (compiler) error message refers to the program specified here. In particular when loading new cycle program on the NCK, problems can occur if the value settings in machine data $MN_MM_NUM_MAX_FUNC_NAMES and $MN_MM_NUM_MAX_FUNC_PARAM are too sma

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Common Causes

  • Machine data $MN_MM_NUM_MAX_FUNC_NAMES value is insufficient for the number of function names in the loaded cycle program
  • Machine data $MN_MM_NUM_MAX_FUNC_PARAM value is too small to accommodate function parameters in the program
  • Corrupted or incomplete cycle program file during NCK load operation
  • Incompatible cycle program version for current 840D/828D firmware revision
  • Insufficient NCK memory available during interface generation compilation

Troubleshooting Steps

  1. 1Verify the loaded cycle program file integrity and check compatibility with current 840D/828D firmware version; reload from known good source if necessary
  2. 2Access machine data settings and increase $MN_MM_NUM_MAX_FUNC_NAMES to accommodate total number of custom function names in the cycle program
  3. 3Increase machine data $MN_MM_NUM_MAX_FUNC_PARAM value to support the maximum parameter count required by cycle functions
  4. 4Perform NCK reset and clear any residual interface compilation data; attempt cycle program reload after system restart
  5. 5If issue persists, check available NCK memory and consider reducing program complexity or splitting into multiple cycle programs

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