User`s manual
Troubleshooting Error code list
11 – 96
7035
CPU LAY. ERROR
The CPU module has been mounted on the
inapplicable slot.
Collateral information
Common Information:
Module No. (CPU No.)
Individual Information: —
Diagnostic Timing
At power ON/ At reset
Mount the CPU module on the applicable slot.
OFF Flicker Stop Q00J/Q00/Q01
(Function
version is B or
later)
QnPRH
QnU
7036
CPU LAY. ERROR
The host CPU No. set by the multiple CPU setting
and the host CPU No. determined by the moun-
ting position of the CPU module are not the
same.
Collateral information
Common Information:
Module No. (CPU No.)
Individual Information: —
Diagnostic Timing
At power ON/ At reset
– Mount the mounting slot of the CPU module
correctly.
– Correct the host CPU No. set by the multiple
CPU setting to the CPU No. determined by the
mounting position of the CPU module.
OFF Flicker Stop QnU (except
Q00UJ-, Q00U-,
Q01U- and
Q02UCPU)
8031
INCORRECT FILE
The error of stored file (enabled parameter file) is
detected.
Collateral information
Common Information:
—
Individual Information: File diagnostic infor-
mation
Diagnostic Timing
At power ON/ At reset/STOP → RUN/
At writing to programmable controller
Write the file shown as SD17 to SD22 of individ-
ual information to the drive shown as SD16(L) of
individual information, and turn ON from OFF the
power supply of the CPU module or cancel the
reset.
If the same error is displayed again, this indi-
cates the CPU module hardware is faulty.
Contact your local Mitsubishi representative.
OFF Flicker Stop QnU
9000
F****
Annunciator (F) was set ON.
Collateral information
Common Information: Program error location
Individual Information: Annunciator number
Diagnostic Timing
When instruction executed
Read the individual information of the error
using GX (IEC) Developer, and check the pro-
gram corresponding to the numerical value
(annunciator number).
ON ON/OFF
USER
LED:
ON
Continue
)
9010
<CHK> ERR ***_***
Error detected by the CHK instruction.
Collateral information
Common Information: Program error location
Individual Information: Error number
Diagnostic Timing
When instruction executed
Read the individual information of the error
using GX (IEC) Developer, and check the pro-
gram corresponding to the numerical value
(error number).
ON OFF
USER
LED:
ON
Continue Qn(H)
QnPH
QnPRH
9020
BOOT OK
Storage of data onto ROM was completed nor-
mally in automatic write to standard ROM.
(BOOT LED also flickers.)
Collateral information
Common Information: —
Individual Information: —
Diagnostic Timing
At power ON/At reset
Use the DIP switches to set the valid parameter
drive to the standard ROM. Then, switch power
on again, and perform boot operation from the
standard ROM.
OFF Flicker Stop Qn(H)
(Function
version is B or
later)
QnPH
QnPRH
10000
CONT.UNIT ERROR
In the multiple CPU system, an error occurred in
the CPU module other than the Process CPU/
High performance model QCPU.
Collateral information
Common Information: —
Individual Information: —
Diagnostic Timing
Always
Check the details of the generated error by con-
necting to the corresponding CPU module.
OFF Flicker Continue Qn(H)
(Function
version is B or
later)
QnPH
Error
code
Error contents and cause Corrective action
LED status
CPU
status
Corre-
sponding
CPU
RUN ERR.
Tab. 11-9: Error code list (7000 to 10000) for PLC CPUs of MELSEC System Q