Mitsubishi Melsec-Q Series User Manual page 368

Error
Error Contents and Cause
Code
[CONTROL-BUS. ERR.]
The FROM/TO instruction is not executable, due to
a control bus error with the intelligent function mod-
ule/special function module.
(On error occurring, the program error location is
1412 stored in the individual information.)
■Collateral information
• Common Information:Module No. (Slot No.)
• Individual Information:Program error location
■Diagnostic Timing
• During execution of FROM/TO instruction set
[CONTROL-BUS. ERR.]
In a multiple CPU system, a CPU module incom-
patible with the multiple CPU system is mounted.
■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• Always
1413
[CONTROL-BUS. ERR.]
An error is detected on the system bus.
• Self-diagnosis error of the system bus.
• Self-diagnosis error of the CPU module
■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• Always
[CONTROL-BUS. ERR.]
• Fault of a loaded module was detected.
• In a multiple CPU system, a CPU module incom-
patible with the multiple CPU system is mounted.
■Collateral information
• Common Information:Module No. (Slot No.)
• Individual Information:–
■Diagnostic Timing
1414
• Always
[CONTROL-BUS. ERR.]
An error is detected on the system bus.
■Collateral information
• Common Information:Module No. (Slot No.)
• Individual Information:–
■Diagnostic Timing
• Always
*4 Function version is B or later.
12 - 73
Corrective Action
Reset the CPU module and RUN it again. If the
same error is displayed again, the intelligent func-
tion module/special function module, CPU module
or base unit is faulty. (Contact your local Mitsubishi
representative.)
• Remove the CPU module incompatible with the
multiple CPU system from the main base unit, or
replace the CPU module incompatible with the
multiple CPU system with a CPU module com-
patible with the multiple CPU system.
• 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 func-
tion module, CPU module or base unit is faulty.
(Contact your local Mitsubishi representative.)
• 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 representa-
tive.)
Reset the CPU module and RUN it again. If the
same error is displayed again, the intelligent func-
tion module, CPU module or base unit is faulty.
(Contact your local Mitsubishi representative.)
LED Status Corresponding
CPU Status CPU
QCPU
Q00J/Q00/Q01
*4
Qn(H)
QnPH
RUN:
Off
ERR.:
Flicker
QCPU
CPU Status:
Stop
Q00J/Q00/Q01
*4
Qn(H)
QnPH
QnU
Q00J/Q00/Q01
Qn(H)
QnPH
QnPRH
QnU
*4
*4
*4