Rockwell Automation 1763 MicroLogix 1100 Programmable Controllers User Manual - Manual (Page 155)

Publication 1763-UM001D-EN-P - March 2011
Online Editing 153
Types of Online Editing The type of online editing is dependent on the MicroLogix 1100 processor’s
mode switch position in LCD display and the processor’s mode. There are two
types of online editing:
• Program Online Editing — when the processor is in either PROG
mode or REM Program mode
• Runtime Online Editing — when the processor is in either REM Test or
REM Run mode
The following table summarizes the MicroLogix 1100 processor mode switch
positions in LCD and modes that enable online editing.
ATTENTION
When editing a rung that contains an MCR
instruction, both the MCR start and MCR end rungs
must be edited (whether it be test/assemble/cancel)
at the same time. We recommend that you fully
understand the possible results of the edit to the
system under control. Failure to properly edit a
running program could result in unexpected
controller operation. Physical injury or equipment
damage may result.
ATTENTION
If you use EII or STI interrupts and your application
requires a quick interrupt latency, the online edit
feature is not recommended. Online editing feature
may increase the interrupt latency response time. To
ensure minimum interrupt latency, place the mode
switch in LCD screen in the RUN mode. This
prevents the use of the online editing feature.
mode switch Position MicroLogix 1100
Processor Mode Editing Mode
RUN RUN Not Available
PROGram Program Program Online Editing
REMote REMote Program Program Online Editing
REMote REMote Test Program Online Editing
REMote REMote Run Program Online Editing