The optional Property ProductionOnlyWithMES indicates if production with the machine is only allowed when the MES is active. When ProductionOnlyWithMES is TRUE and the connection to the MES is lost, the machine may not have the ProductionStatus PRODUCTION_4 and not the JobStatus JOB_IN_PRODUCTION_6 (see 18.4.1).

NOTE: It is not fixed by this specification if the machine stops or continues running.

The default value is FALSE.

Only one MES client shall write this Property.