Siemens SIMATIC HMI Mobile Panel 277 RO Operating Instructions Manual page 63

Possible application areas for the STOP button:
● The STOP button can be used to initiate a process-cycle-specific rapid stop of a
monitored system (plant, machine or machine zone). The Stop operation can occur with
or without a power shutdown.
Advantages:
– Limitation of effective range
– Fast restart
– No loss of machine coordinates and thus no recalibration upon restart
– Preservation of tool and workpiece
● Triggering of the Emergency Stop function of a monitored system by means of looping in
the Emergency Stop circuit.
Advantage:
Simple integration in an existing Emergency Stop circuit when the system to be
monitored has no option for a fast process stop.
①
Due to its position, the STOP button is equally accessible to both left-handed and right-
handed individuals.
Due to its profiled design, the STOP button is easily accessible. The STOP button can be
activated if the HMI device is dropped.
Mobile Panel 277 RO
Operating Instructions, 10/2015, A5E36824256-AA
5.1 Operator controls and displays on the Mobile Panel 277 RO
STOP button
Operator controls and displays
63