Allen-Bradley LOGIX 5000 Reference Manual page 315

Drives
Output parameter Data Type
Out BOOL
Affects Math Status Flags
No
Major/Minor Faults
None specific to this instruction. See Index Through Arrays for array-indexing
faults.
Execution
Ladder Diagram
Condition
Prescan
Rung-condition-in is false
Rung-condition-in is true
Postscan
Function Block
Condition/State
Prescan
Tag.EnableIn is false
Tag.EnableIn is true
Instruction first scan
Instruction first run
Postscan
Structured Text
Condition/State
Prescan
Normal Execution
Rockwell Automation Publication 1756-RM006K-EN-P - November 2018
Description
When EnableIn is true:
Cleared to false when none of the registered HMI
devices buttons are pressed.
Set to true when at least one registered HMI button
is pressed.
When EnableIn is false :
Cleared to false
Default value is false.
Action Taken
The rung-condition-out is set to false.
The rung-condition-out is set to false.
The rung-condition-out is set to true if any HMI device buttons
control operation associated with the instruction instance tag
are pressed. Otherwise, rung-condition-out is set to false.
The rung-condition-out is set to false.
Action Taken
N/A
The instruction does not execute.
The instruction does not execute.
N/A
N/A
N/A
Action Taken
The instruction executes.
The instruction executes.
Chapter 2
315