
PLC Programming Considerations
Appendix A
A-34
Create the Toggle Command Rungs
Rung 2:5 handles the toggle command variables when a cursor change or
mode change occurs.
Figure A.19
Toggle
Command Rung (Rung 2:5)
23719
Rung 2:5
PRE-TOGGLE
LATCH
B40
] [
6
AUTOMODE
B40
] [
1
MOV
MOVE
Source
Dest
N31:202
1
N34[N31:200]
3
MOV
MOVE
Source
Dest
N30:1
1
N31:200
3
MOV
MOVE
Source
Dest
N34[N30:1]
1
N31:202
1
PRE-TOGGLE
LATCH
B40
( U )
6
NEQ
NOT EQUAL
Source A
Source B
N30:1
1
N31:200
3
CURSOR
CHANGE
Rung 2:6 toggles the command between “Select” and “Bypass” for the
currently selected station.
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