Channel %1: Command %2 is already occupied

%1 = Channel number %2 = Event name

This channel has received a negative acknowledgment from the inter-channel communication because this command is already active or has not yet been terminated, e.g.: INIT(x,"ncprog") but a program select request is already active for channel x.

- Alarm display.

This is an indication of possible discrepancies. The program continues if no acknowledgment is called for.

Clear alarm with the Delete key or NC START.

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