If control modules (valves, motors, flaps,...) are put into manual operation, then they are not controlled by the automatic system and have to be switched on and off manually. The same also applies to process modules (scales, containers, machines on which process functions can be executed). If they are set to manual mode, they cannot be occupied by the active workflows or by a workflow group. The operating mode can be switched either by context menu or control dialog. The current mode can be recognized either by the yellow frame around the object or the symbols:
 | Automatic mode |
 | Manual mode |
 | Maintenance mode |