Rockwell Automation 1753-PCS-PAR Using RSLogix Guard PLUS! with GuardPLC Controllers - Manual (Page 73)

Publication 1753-PM001A-EN-P - November 2005
Monitor and Force Signals 5-3
4. If you are not already connected, in the Force Editor, choose
File>Connect.
The software displays the values of the signals you selected .
You can force any of the signals that have been configured in the
Force Editor.
Forcing Forcing describes the intervention of the user in the logic of the
application program loaded into the controller. When data is forced,
the controller uses the forced values rather than its process values.
This changes the value of one or more signals and affects the safety of
the controller.
Only signals used in the controller can be forced. The application
program and the inputs and outputs are only affected when the
controller is in RUN mode.
The R-Value (Resource Value)
column displays the current
values of the signals.
ATTENTION
When using forcing on a controller with safety tasks,
always obey the restrictions listed in the GuardPLC
Controller Systems Safety Reference Manual,
publication number 1753-RM002.