Rockwell Automation 9323-S5500D A.I. SERIES MICROLOGIX 1000 AND PLC-500 SOFTW - Manual (Page 411)

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Online Editing and Monitoring
Online editing of ladder programs is available when using SLC 5/03 or SLC 5/04
processors. Use this function to make minor changes to a pre-existing ladder program.
Online editing functions consist of inserting, replacing, and deleting rungs in an
existing ladder program while online with the processor. You can also document your
program while performing an online edit. Refer to Chapter 8 - Adding Descriptive
Text to Ladder Logic for more information on documenting ladder programs.
Only one programming terminal can perform an online edit of a user program at a
time. When a user accepts an edit on one terminal, any other terminals also online will
display an error message.
!
Online edits may result in sudden machine movement, possibly causing death,
personal injury, or damage to equipment! Before initiating an online editing session,
be certain that you fully understand the possible results of the edit to the system
under control.
The following restrictions apply to Online editing.
•
Data table files cannot be created, deleted, or resized.
•
Program files cannot be created or deleted.
•
Altering program file protection is not permitted.
•
Altering of static, constant, and memory module data file values is not permitted.
•
Setting Future Access, Index Across Files, and Force Protection is not available.
(See the section on Saving a Project File in Chapter 6 - Editing Ladder Logic for
more information on these configuration settings.)
•
Alteration of I/O configuration is not permitted.
Note It is important to keep in mind that some ladder instructions, when programmed online,
cause data table values to change. These instructions are those that require timer,
counter, and control addresses to be specified. This is discussed later in this chapter.