Mitsubishi Electric M800VW Series Manual page 622

M800V/M80V Series PLC Development Manual
8 Appendix 2: List of PLC Alarms
Error contents and cause
Project execution order illegal (at the PLC system startup)
Multi-project parameter setting is illegal (due to the following rea-
son).
 The ratio to which the area after the project ratio setting is small-
er than the size of ladder stored in the built-in ROM area was de-
tected.
Comment area over (at the PLC system startup)
Multi-project parameter setting is illegal (due to the following rea-
son).
 The ratio to which the area after the project ratio setting is small-
er than the size of comment and message stored in the built-in
ROM area.
Parameter setting illegal for number of device points (at PLC system
startup)
Multi-project parameter setting is illegal (due to the following rea-
son).
 The value outside the setting range (ON/OFF) was detected.
 All execution projects are OFF.
Execution project illegal (at the PLC system startup)
Multi-project parameter setting is illegal (due to the following rea-
son).
 The value outside the setting range (1 to 6) was detected.
 The redundant project execution order number was detected.
Parameter setting illegal for the number of common device points (at
PLC system startup)
Multi-project parameter setting is illegal (due to the following rea-
son).
 The value outside the setting range (0 to the minimum number
of points in all projects) was detected.
 It was detected that the number of points was not a multiple of
16.
Parameter setting illegal for number of device points (at PLC system
startup)
(1) The parameter setting for the number of device points is illegal
(due to the following reasons).
 The total number of points in one project 29K or more was set.
 The illegal value (-1 point or less, or 61441 points or more) for
the number of device points was detected.
 It was detected that the number of device points was not a mul-
tiple of 16.
 The number outside the usable number of device points in whole
projects was detected.
Caution; Ladder program writing during RUN is disabled (In indepen-
dent program method)
With RUN write ON, sequence program is operated in independent
program method.
Run write is not available with this condition.
Caution; Ladder program writing during RUN is disabled (common
pointer is used in high-speed processing)
With RUN write is ON, high-speed program with common pointer is
running.
Run write is not available with this condition.
Caution; Ladder program writing during RUN is disabled (high-speed
processing size is exceeding)
With RUN write ON, the execution size of high-speed processing
program has exceeded 4000 steps.
Run write is not available with this condition.
(1) Check the presence of additional specification "Large PLC ca-
pacity" and reconsider the storable size.
(2) The multi-project parameter (project ratio) setting is illegal. Set
the multi-project parameter again.
(3) If (1) or (2) does not solve the problem, there is a possibility that
the NC system is broken. Contact Mitsubishi Electric.
(1) The parameter setting for the number of device points is illegal.
Set the parameter of the number of device points again and re-
boot the system.
(2) If (1) does not solve the problem, there is a possibility that the NC
system is broken. Contact Mitsubishi Electric.
(1) The multi-project parameter (execution project) setting is illegal.
Set the multi-project parameter again.
(2) If (1) does not solve the problem, there is a possibility that the NC
system is broken. Contact Mitsubishi Electric.
(1) The multi-project parameter (project execution order) setting is il-
legal. Set the multi-project parameter again.
(2) If (1) does not solve the problem, there is a possibility that the NC
system is broken. Contact Mitsubishi Electric.
(1) Check the presence of the expansion project additional specifica-
tion and reconsider the setting range.
(2) The multi-project parameter (project ratio) setting is illegal. Set
the multi-project parameter again.
(3) If (1) or (2) does not solve the problem, there is a possibility that
the NC system is broken. Contact Mitsubishi Electric.
(1) The parameter setting for the number of device points is illegal.
Set the parameter of the number of device points again and re-
boot the system.
(2) If (1) does not solve the problem, there is a possibility that the NC
system is broken. Contact Mitsubishi Electric.
The ladder program writing (RUN write) can not be used in indepen-
dent program method.
Change the method into multi-program one.
RUN write is not available when high-speed processing with com-
mon pointer is running. Change the high-speed processing program
to the one without common pointer.
RUN write is not available when execution size of high-speed pro-
cessing program exceeds 4000 steps. Edit the high-speed process-
ing program to reduce the execution size to 4000 steps or less.
(When multi-project is valid, edit the program to reduce the execu-
tion size to 4000 steps or less in total of all the project.)
597
Remedy
IB-1501614-B