Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Servo/Axis · Intermediate · 20-45 minutes

Alarm 15172

Siemens 840D 15172 - Channel block subroutine. No interface available at time of

In compilation mode no program interface of the subroutine to be called was available at the time of pre-compilation.

Siemens SINUMERIKServo/AxisIntermediate20-45 minutes

15172

Siemens 840D 15172 - Channel block subroutine. No interface available at time of

Channel block subroutine. No interface available at time of

In compilation mode no program interface of the subroutine to be called was available at the time of pre-compilation.

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Common Causes

  • Subroutine file not present in the program directory or search path during pre-compilation
  • Subroutine interface definition missing or not properly compiled before main program compilation
  • Incorrect subroutine name or path reference in the calling program
  • Memory or cache issue preventing access to previously compiled subroutine interface
  • Subroutine file locked or inaccessible due to file system permissions

Troubleshooting Steps

  1. 1Verify the subroutine file exists in the correct directory and that the filename matches exactly the reference in the calling program, including case sensitivity if applicable
  2. 2Pre-compile the subroutine independently before compiling the main program to ensure its interface is available in the system
  3. 3Check the program search paths in the CNC settings to confirm the subroutine directory is included and accessible
  4. 4Clear the program cache and restart the CNC controller, then recompile both the subroutine and main program in the correct order
  5. 5Verify file permissions and ensure the subroutine file is not locked or write-protected, then attempt recompilation

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