Rockwell Automation 1766-Lxxxx MicroLogix 1400 Programmable Controllers User Manual - Manual (Page 167)

Rockwell Automation Publication 1766-UM001H-EN-P - May 2014 125
Online Editing Chapter 7
Edit Functions in Runtime Online Editing
During a runtime online editing session, the processor
is executing ladder logic.
The edit zone markers tell the processor that changes exist, but the changes are
not executed until you test the edits.
Deleted and replaced (modified) rungs are not removed from the program and
inserted rungs are not executed until you assemble or test the edits.
Edit Functions in Program Online Editing
During a program online editing session, the processor
is not executing ladder
logic. This mode is like the offline editing mode. Note that if a runtime online
editing session was performed prior to entering the offline editing mode, edit
marked rungs (I, R, and D)
appear in the program.
If you perform a program online edit, once you accept or delete the rung, the
edits take effect immediately and the power rail is displayed as a solid line. If you
edit a rung with edit zone markers, the markers are removed when the rung is
accepted.
ATTENTION: Use the online editing function while in the RUN
mode to make minor changes to the ladder program. We
recommend developing your program offline since ladder rung
logic changes take effect immediately after testing your edits.
Improper machine operation may occur, causing personnel injury or
equipment damage.