Mitsubishi MELSEC Q Series Programming Manual page 931

Error
Error Contents and Cause
Code
[RAM ERROR]
Data in the program memory of the CPU module
were overwritten.
■Collateral information
1163
• Common Information:-
• Individual Information:-
■Diagnostic Timing
• When instruction executed
[RAM ERROR]
The destruction of the data stored in the standard
RAM is detected.
■Collateral information
1164
• Common Information:-
• Individual Information:-
■Diagnostic Timing
• When instruction executed
[RAM ERROR]
The RAM of the CPU module (built-in I/O) is faulty.
■Collateral information
• Common Information:-
1170
• Common Information: Failure information
■Diagnostic Timing
• At power-on/At reset
[RAM ERROR]
The RAM of the CPU module (built-in I/O) is faulty.
■Collateral information
• Common Information:-
1171
• Common Information: Failure information
• Diagnostic Timing
• Always
[RAM ERROR]
The RAM of the CPU module (built-in I/O) is faulty.
■Collateral information
1172 • Common Information:-
• Individual information: Failure information
■Diagnostic Timing
• At power-on/At reset
[OPE. CIRCUIT ERR.]
The operation circuit for index modification in the
CPU module does not operate normally.
■Collateral information
1200
• Common Information:-
• Individual Information:-
■Diagnostic Timing
• At power-on/At reset
[OPE. CIRCUIT ERR.]
The hardware (logic) in the CPU module does not
operate normally.
■Collateral information
1201
• Common Information:-
• Individual Information:-
■Diagnostic Timing
• At power-on/At reset
Corrective Action
• Take noise reduction measures.
• For GX Works2, select "Transfer cache memory
to program memory" in the Options dialog box.
For GX Developer, select "Online change T/C
setting value change program memory transfer
settings" in the Options dialog box.
Format the program memory, write all files to the
CPU module, and run it again.
If the same error code is displayed again, the
cause is a hardware failure of the CPU module.
(Please consult your local Mitsubishi
representative, explaining a detailed description of
the problem.)
Take noise reduction measures.
If the same error code is displayed again, the
cause is a hardware failure of the CPU module.
(Please consult your local Mitsubishi
representative, explaining a detailed description of
the problem.)
The cause is a hardware failure of the CPU
module. (Please consult your local Mitsubishi
representative, explaining a detailed description of
the problem.)
LED Status Corresponding
CPU Status CPU
QnU
*22
QnU
L26CPU-BT
RUN:
Off
ERR.:
LCPU
Flicker
CPU Status:
Stop
LCPU
QCPU
LCPU
12-11
1
2
3
12
6
6
7
8