Siemens SINUMERIK codes
Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

101610

Siemens 840D 101610 - No operational priority.

No operational priority.

Siemens SINUMERIK alarm 101610: No operational priority. This alarm indicates a required configuration element, parameter, or program component is missing or has not been set up.

Root Cause Summary

Alarm 101610 'No operational priority' indicates that the system cannot determine which operating mode should have control priority. This typically occurs when multiple control sources (MCP, HHU, PLC, or external devices) attempt to gain control simultaneously, or when the operational priority chain is not properly configured in the machine data.

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Causes and Fixes

  1. 1

    Check all connected operator panels (MCP, HHU) for active control requests or stuck enable buttons.

  2. 2

    Verify PLC program for simultaneous control activation signals on DB19 or interface signals DBX7.0-7.3.

  3. 3

    Disconnect one operator interface at a time to isolate which device is causing the conflict.

    Ensure machine is in a safe state before disconnecting any operator interface.

  4. 4

    Clear the alarm and reestablish control priority from a single source, then verify normal operation.

Service Recommended confidence

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