Mitsubishi Electric M800 Series Manual page 132

M800/M80/E80/C80 Series Alarm/Parameter Manual
10 User PLC Alarms (U)
U10 Illegal PLC
Details
Execution project illegal (at the PLC system startup)
Multi-project parameter setting is illegal (due to the following reasons).
The value outside the setting range (ON/OFF) was detected.
All execution projects are OFF.
Remedy
(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.
U10 Illegal PLC
Details
Project execution order illegal (at the PLC system startup)
Multi-project parameter setting is illegal (due to the following reasons).
The value outside the setting range (1 to 6) was detected.
The redundant project execution order number was detected.
Remedy
(1) The multi-project parameter (project execution order) 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.
U10 Illegal PLC
Details
Parameter setting illegal for the number of common device points (at PLC system startup)
Multi-project parameter setting is illegal (due to the following reasons).
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.
Remedy
(1) Check the presence of the expansion project additional specification and reconsider the setting range.
(2) The multi-project parameter 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 Mitsub-
ishi.
U10 Illegal PLC
Details
Parameter setting illegal for number of device points (at PLC system startup)
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 multiple of 16.
The number outside the usable number of device points in whole projects was detected.
Remedy
(1) The parameter setting for the number of device points is illegal. Set the parameter of the number of device
points again and reboot the system.
(2) If (1) does not solve the problem, there is a possibility that the NC system is broken. Contact Mitsubishi.
U10 Illegal PLC
Details
Caution; Ladder program writing during RUN is disabled (In independent program method)
With RUN write ON, sequence program is operated in independent program method. Run write is not available
with this condition.
Remedy
The ladder program writing (RUN write) can not be used in independent program method.
Disable RUN write, or change the method into multi-program one.
0x550*
0x560*
0x570*
0x580*.yy
0x700*.yy
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IB-1501279-H