Yaskawa MP900 Series Ladder Programming Manual - Manual (Page 35)

3.1 Ladder Program Design Procedures
3.1.6 Creating Ladder Programs
3-8
f
Repeat steps 1 to 3 until you have created the entire ladder program. The following figures show examples of
a ladder program and its timing chart.
ΠThe 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.
4.
While displaying the ladder program, select Compile - Compile from the menu bar to compile the pro-
gram. When the compilation is finished, the ladder program will be saved automatically.
If an error is displayed in the Output Pane during compilation, the ladder program will not be saved.
5 s
ON
OFF
ON
OFF
SW1 (MB00000)
ON
OFF
SW2 (MB00001)
Lamp 1 (MB00010)
AND Circuit Operation
SW3 (MB00002)
ON
OFF
Timer Circuit Operation
Timer (DW00000)
Lamp 2 (MB00011)
ON
OFF
5
0
IMPORTANT