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Operator controls and displays
5.5 Operator controls
5.5.3.2
Evaluating operator controls as direct keys
You can configure the operator controls of the HMI device as direct keys. The control states
of the following operator controls are then available directly in the IO area of the controller:
● The control state of the rotary switch
● The control state of the illuminated pushbuttons
● The control state of illuminated pushbutton LED
Byte assignment
The following figure shows the assignment of the keys (inputs) and LEDs (outputs) to the
bytes in the PLC process image.
S
T1
The bytes "n+6" to "n+9" contain the direct key bits for the touch buttons.
Refer to your plant documentation for additional information.
Bit assignment
The following tables show the bit assignment for the rotary switch and illuminated
pushbutton:
● Bit coding of rotary switch
State
94
Bit for rotary switch
Bit for illuminated pushbutton
Automatic mode
Manual control
PRELIMINARY II
S1
0
1
Wireless Teach Pendant F IWLAN V2
Operating Instructions, 08/2010, A5E02453837-01
1.7.2010
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