mmm logical terminal is an alternate source logical terminal that is currently used for alternate transmission. command name=aa...aa logical terminal name=bb...bb

The command is invalidated since the specified logical terminal is an alternate source logical terminal that is currently used for alternate transmission.

mmm: MCF identifier

aa...aa: Command name

bb...bb: Logical terminal name

S: Invalidates this command.

O: Terminate the alternate transmission then re-execute the command.