Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Program/G-code · Intermediate · 30-120 minutes

Alarm 104136

Siemens 840D 104136 - PA: Error in getting WO data Block column index

Alarm 104136 indicates a data access error when the control system attempts to retrieve Work Offset (WO) data from a specific data block. This typically occurs when the NC program or HMI requests work offset values from an invalid, corrupted, or non-existent data block or column index position.

Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

104136

Siemens 840D 104136 - PA: Error in getting WO data Block column index

PA: Error in getting WO data Block column index

Siemens SINUMERIK alarm 104136: PA: Error in getting WO data Block column index. This alarm indicates an error condition in the NC program or control configuration that must be resolved before the operation can continue.

Root Cause Summary

Alarm 104136 indicates a data access error when the control system attempts to retrieve Work Offset (WO) data from a specific data block. This typically occurs when the NC program or HMI requests work offset values from an invalid, corrupted, or non-existent data block or column index position.

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Causes and Fixes

  1. 1

    Note the specific Block number (%1) and column index (%2) from the alarm message displayed on the HMI.

  2. 2

    Access the work offset memory area via HMI: Navigate to Parameters → Work Offsets → Check if the referenced block number exists in the system.

  3. 3

    Review the active NC program for work offset calls (G54-G57, G505-G599, or direct $P_UIFR[] array access) and verify the block numbers match existing work offset data blocks.

  4. 4

    If the data block is missing, either recreate it with appropriate zero offset values or modify the NC program to reference valid existing work offset blocks.

    Ensure work offset values are verified after recreation to prevent workpiece collisions

Service Recommended confidence

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