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Note the exact timing and operation being performed when the message appeared (mode change, program start, reset, etc.).

Check the channel number indicated in %1 parameter and verify it corresponds to the channel you are operating.

Acknowledge the message using the RECALL softkey or acknowledgment button on the HMI.

If message appears repetitively during normal operations, document the sequence and consider software upgrade to SW 4.x or higher where this message handling is improved.

Frequent repetitive messages may indicate underlying communication issues between NCK and HMI.

Check system message buffer for any preceding alarms or messages that may have triggered the channel status update.

Verify channel configuration in machine data MD20110 (number of channels) matches the physical machine setup.

Do not modify machine data without proper backup and authorization.

Review startup logs (TCU or PCU bootlog) for any channel initialization warnings if message appears during power-up.

Acknowledge message and monitor if it recurs. If persistent after startup, perform NCK reset via HMI or power cycle.

Document current software version by checking in Commissioning > System Data > Version or NCK diagnostic screen.

Acknowledge the message and verify all channel functions operate normally (program execution, mode changes, axis movement).

Consult Siemens Service documentation for your specific software version to determine if this message can be suppressed via machine data.

If operationally disruptive, contact Siemens technical support to discuss software upgrade path to SW 6.x or higher where this message is obsolete.

Software upgrades require careful planning, licensing verification, and may need machine data adaptation.