H

High priority Ladder task (higher than rule). (optional)

S

Synchronous task ladder (inside the rules). (optional)

M

Medium priority task ladder (below the rules). (optional)

L

Task Ladder low priority (higher than main task). (optional)

Notes

When a Ladder program is loaded from the PC that is inconsistent with the Ladder program running on the control, execution of the Ladder program is stopped. To have it re-executed, this directive must be used.

Stopping the execution of the Ladder program can be avoided by putting the FLAG on the appropriate field in the project configurator "Settings -> General -> Ladder"