
B-63983EN/02 8.LADDER DIAGRAM MONITOR AND EDITOR SCREENS ([PMC LADDER])
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CAUTION
1 You can edit ladder programs regardless of whether
they are active or not. To execute a ladder program
with the results of editing being reflected, you must
update the ladder program. To do this, click the
[UPDATE] soft key, or update the program when
exiting from the LADDER DIAGRAM EDITOR
screen. For details of the method of protecting
editing, see Section 7.3.
2 After you have edited a sequence program, the
results of editing will be lost if the power is turned off
without first writing the edited sequence program to
flash ROM.
Write the sequence program to flash ROM on the
I/O screen. If you set "WRITE TO F-ROM(EDIT)" to
"YES" on the general functions' setting parameter
screen, a confirmation message will be displayed,
prompting you to ask whether to write a sequence
program to flash ROM after the end of editing. For
details of this setting, see Section 9.5.
(1) Screen structures
(a) It is basically same with LADDER DIAGRAM MONITOR
screen, except that no monitor displays of relays and
parameters of functional instructions are displayed.
(b) At right side of LADDER Diagram area, a position bar is
always displayed, which indicates screen position within
current subprogram: in LADDER DIAGRAM MONITOR
screen, this position bar is exclusively displayed with
comments of write coil. Sometimes, this position bar hides
a part of write coil comments.
(2) LADDER Diagram
(a) Style of LADDER Diagram is basically same with
LADDER DIAGRAM MONITOR screen, except that
functional instructions are drawn always in "COMPACT"
format that has no monitor displays.
(b) Cursor is shown always. And the net, which will be an
object of following editing operations, is emphasized in
screen.