Rockwell Automation 9323-PA1E USER MANUAL APS 6.0 - Manual (Page 353)

Preface
Advanced Programming Software User Manual
19–2
Force Function Overview
The Force function allows you to override the actual status of external input circuits
by forcing external input data file bits ON or OFF. You can also override the
processor logic and status of output data file bits by forcing output circuits ON or
OFF.
Note MicroLogix 1000 controllers only: Forces are always enabled but must be installed
to be active.
You can install and then enable or disable forces while:
•
monitoring your file offline
•
in any processor mode while monitoring your file online
To avoid possible personal injury and damage to equipment, investigate the
effects on machine operation before forcing external input data file bits or
external output circuits.
MicroLogix 1000 controllers only: Forces override any output control from
either the high-speed counter or from the output image. Forces may also be
applied to and recognized by the high-speed counter inputs. (e.g., A forced
count input off and on increments the high-speed accumulator.)
Navigational Keys When Using the Force Function
The following keys are useful when you are at the Force function menu. These keys
are active when the processor is either online or offline, except where noted.
Key Description
[Pg Up] Moves the cursor to the left power rail of rung 0 in a ladder program.
[Pg Dn] Moves the cursor to the end instruction of a ladder program.
[ALTĆS] Accesses the Search menu choices.
[ALTĆE] Accesses the Configure Display menu choices.
[ALTĆT] Accesses the Document menu choices (Offline only).
[ALTĆC] Accesses the Change Mode menu choices.