7.2 Creating Ladder Programs
7-41
7
Cr
eating U
s
er Pr
ogram
s
5.
Repeat steps 1 to 4 until you have entered the entire ladder program. The following
example shows a ladder program and its timing chart.
Note: The ladder program example that is shown above uses M registers for switches and lamps.
When you enter a ladder program for an actual system, use the appropriate I and O registers.
To insert a comment, right-click the tab with the row number, and select
Insert Rung Com-
ment
.
Information
<Ladder Program Example>
5
s
S
W1 (MB00000)
S
W2 (MB00001)
S
W
3
(MB00002)
5
0
Timing Chart Example
OFF
ON
Lamp 2 (MB00011)
Timer (DW00000)
Timer Circuit Operation
OFF
ON
AND Circuit Operation
Lamp 1 (MB00010)
OFF
ON
OFF
ON
OFF
ON
