Rockwell Automation 1747-PTxx Getting Started Guide for HHT - Manual (Page 44)

Chapter 4
Online Operations
Getting Started Guide
for HHT
4–5
The following diagram shows the rung you entered if you are using the
modular controller demo unit discussed in chapter 3. If you are using some
other controller configuration, make certain that your external input device
and output device are wired to the controller input and output that you
addressed in your ladder program.
( )
O:3.0
0
END
] [
I:1.0
0
Address I:1.0/0 corresponds
to pushbutton 0 of the demo
unit. Address O:3.0/0
corresponds to pilot light 0
of the demo unit.
0
F8
0
1
< >
To test the program, press pushbutton 0. Pilot light 0 should go on. The
display should show both the XIC and OTE instructions highlighted to
indicate that they are true.
Processor operation: When you pressed pushbutton 0, the 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, release the pushbutton. Pilot light 0 should go off. Neither instruction
in the rung should be highlighted. When you released pushbutton 0, the
input instruction went from true to false; this broke the path of true input
instructions, causing the output instruction to go from true to false.
In this procedure, you will monitor the input data file and the output data file.
These files include a status bit for each of the configured I/O terminals of the
controller. You will monitor data file changes as you operate pushbutton 0.
To end the exercise, you will go offline.
1. Beginning with the display shown on the previous page, press
[F3] – EDT_DAT . The following display appears:
O0:3.0/0 = 0
Address 15 data 0
O0:3.0 0000 0000
F1 F2 F3 F4 F5
ADDRESS NEXT_FL PREV_FL NEXT_PG PREV_PG
RUN
Testing Your Downloaded
Program
Monitoring Data Files