Systems and methods are provided to facilitate correct execution of a machine jog operation where a plurality of interfaces can generate a machine jog command, which is received by an industrial controller. One or more machine jog commands can be received and state data is maintained regarding whether a machine jog command has been received. An OR gate logic operation is performed on the state data to determine whether a machine jog operation has been received from any of the plurality of interfaces, and in the event of receiving a machine jog operation, a control command is generated to effect a machine jog operation. The plurality of interfaces enable interaction with the controller, to facilitate control of a machine from a plurality of locations. The system can be expanded to include further interfaces. Also, information regarding a machine jog command can be published to the plurality of interfaces.

It is assumed that when a first teaching device is communicating with an active task unit in a robot control device, a second teaching device transmits a request to connect to the active task unit, to the robot control device. In such a case, the robot control device is configured to stop the first teaching device executing active tasks, and establish communication between the second teaching device and the active task unit of the robot control device which allows active tasks to be executed thereby.

It is assumed that when a first teaching device is communicating with an active task unit in a robot control device, a second teaching device transmits a request to connect to the active task unit, to the robot control device. In such a case, the robot control device is configured to stop the first teaching device executing active tasks, and establish communication between the second teaching device and the active task unit of the robot control device which allows active tasks to be executed thereby.