Rockwell Automation 9323-PA1E QUICK START GUIDE APS 6.0 - Manual (Page 49)

Online Operations, Quick Edit
4–9
The following diagram shows the rung you have modified if you are using the
modular controller demo unit discussed on page 3–5. If you are using some
other controller configuration, make certain that your external input devices and
output device are wired to the controller inputs and output that you addressed in
your ladder program.
( )
O:3
0
END
] [
I:1
0
Address I:1/0 corresponds
to pushbutton 0 of the
demo unit
Address O:3/0
corresponds to pilot light 0
of the demo unit
0
F8
0
1
O
F
F
O
N
6
] [
I:2
2
Address I:2/2 corresponds
to selector switch 6 of the
demo unit
To test the program, first turn selector switch 6 to the on position. Note that the
corresponding input instruction in the rung is highlighted, indicating that it is
true. Now press pushbutton 0. Pilot light 0 should go on. The rung should
show all instructions highlighted to indicate that they are true.
Processor operation: When you pressed pushbutton 0, the corresponding input
instruction went from false to true. This resulted in a path of true input
instructions in the rung, causing the output instruction to go from false to true.
Now turn selector switch 6 to the off position. Note that the corresponding
input instruction in the rung is no longer highlighted, indicating that it is false.
Press pushbutton 0. Note that the corresponding input instruction is highlighted,
but the output instruction does not go from false to true. This is because a
continuous path of true input instructions does not exist in the rung.