Mitsubishi QJ71LP21 Reference Manual page 269

8 TROUBLESHOOTING
Error
Code Error Contents and Cause
*1
(SD0)
• Fault of a loaded module was
detected.
• In a multiple CPU system, a CPU
module incompatible with the
multiple CPU system is mounted.
1414
An error is detected on the system
bus.
Fault of the main or extension base
1415
unit was detected.
System bus fault was detected at PLC
power-on or CPU module reset.
1416
In a multiple CPU system, a bus fault
was detected at power-on or reset.
A reset signal error was detected on
1417
the system bus.
Hardware fault at the system
1421
management module AS92R.
*1 Characters in parentheses ( ) indicate the special register numbers where individual information is being
:
stored.
*12 This applies to the CPU module of function version B or later.
:
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Corrective Action
• Remove the CPU module
incompatible with the multiple CPU
system from the main base unit, or
replace the CPU module with a CPU
module compatible with the multiple
CPU system.
• Reset the CPU module and RUN it
again. If the same error is displayed
again, the intelligent function
module, CPU module or base unit is
faulty. (Contact your local Mitsubishi
representative.)
Reset the CPU module and RUN it
again. If the same error is displayed
again, the intelligent function module,
CPU module or base unit is faulty.
(Contact your local Mitsubishi
representative.)
Reset the CPU module and RUN it
again. If the same error is displayed
again, the intelligent function module,
CPU module or base unit is faulty.
(Contact your local Mitsubishi
representative.)
Reset the CPU module and RUN it
again. If the same error is displayed
again, the intelligent function module,
CPU module or base unit is faulty.
(Contact your local Mitsubishi
representative.)
This suggests a system management
module AS92R hardware fault.
(Contact your local Mitsubishi
representative.)
MELSEC-Q
Corresponding
CPU
Q00J/Q00/
*12
Q01
*12
Qn(H)
QnPH
Q00J/Q00/
*12
Q01
Qn(H)
QnPH
QnPRH
Rem
Q00J/Q00/Q01
*12
Qn(H)
QnPH
QnPRH
*12
Qn(H)
QnPH
*12
Q00/Q01
QnPRH
Q4AR
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