User manual

Communication with the Automation System
33003962 11/2011 131
Activating Commands via Function Keys on the Display Unit
Example
Function key
1 Function key
The dialog table enables dialog between the PLC and the terminal. In this table, one
word is reserved to supply the PLC with the status of the function keys in the form
of a word bit.
Bit 15 to
Bit 12
Bit
11
Bit
10
Bit
9
Bit
8
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
ReservedF12F11F10F9F8F7F6F5F4F3F2F1