Rockwell Automation Logix5000 Controllers Tasks, Programs, and Routines Programming Manual - Manual (Page 25)

Manage tasks Chapter 1
3. Do one of these steps to inhibit or uninhibit the task.
If You Want to Then
Let the task run when its trigger occurs Clear Inhibit Task (default).
Prevent the task from running when its trigger
occurs Check Inhibit Task.
4. Click OK.
Programmatically inhibit or uninhibit a task
To write logic to inhibit or uninhibit a task, use a Set System Value (SSV)
instruction to access the attribute of the Task object for the task.
Attribute Data Type Instruction Description
InhibitTask
DINT
GSV
SSV Prevents the task from running.
To Set the attribute to
Enable the task 0 (default)
Inhibit (disable) the task 1 (or any non-zero value)
Rockwell Automation Publication 1756-PM005-EN-P - October 2014 25