Rockwell Automation 1747-PT1, D1747NP002 Hand-Held Terminal - Manual (Page 200)

Chapter 13
The Force Function
13–2
Installing forces on input data file bits only affects the input force table.
However, enabling the installed forces affects the input force table, input data
file, and, thus, the program logic. The effects on the program logic of
installed and enabled forces can be seen in both the Run and Test modes.
In the following example, the HHT is online, monitoring the program in the
Run mode. The cursor is located on external input I:0/1. The display
indicates NO FORCE.
] [
RUN
MODE FORCE EDT DAT SEARCH
F1 F2 F3 F4 F5
XIC: I1:0.0/1 NO FORCE 2.0.0.0.1
( )
( )
]/[ ] [
]/[ ] [
]/[
( )
( )
] [
] [
] [
To Close an External Input Circuit
To simulate the closing of the external input circuit, you must force the input
as follows:
1. Select the force function by pressing [ F2 ], FORCE. The force functions
appear:
] [
RUN
ON OFF REM REM_ALL ENABLE
F1 F2 F3 F4 F5
XIC: I1:0.0/1 NO FORCE 2.0.0.0.1
( )
( )
]/[ ] [
]/[ ] [
]/[
( )
( )
] [
] [
] [
Note: The HHT does not have access to the force table.
Forcing an External Input