Rockwell Automation Logix5000 Controllers I/O and Tag Data Programming Manual - Manual (Page 57)

Force I/O Chapter 3
Force status indicator
If your controller has a FORCE Status Indicator, use it to determine the status of
any I/O forces.
Important: The FORCE Status Indicator shows only the status of I/O forces. It does not s(how that status of SFC forces.
FORCE Status Indicator Then
Off • No tags contain force values.
• I/O forces are inactive (disabled).
Flashing • At least one tag contains a force value.
• I/O forces are inactive (disabled).
Solid
• I/O forces are active (enabled).
• Force values may or may not exist.
GSV instruction
Important: The ForceStatus attribute shows only the status of I/O forces. It does not show the status of SFC forces.
This ladder rung shows how to use a GSV instruction to get the status of forces.
where Force_Status is a DINT tag.
To determine if Examine this bit For this value
Forces are installed 0 1
No forces are installed 0 0
Forces are enabled 1 1
Forces are disabled 1 0
Rock well Automati on Publication 1756- PM004E -EN-P - October 2014 57