User`s manual

Error code list Troubleshooting
MELSEC System Q, Hardware 11 – 49
2301
ICM. OPE. ERROR
– The memory card has not been formatted.
– Memory card format status is incorrect.
– The QCPU file does not exist in the Flash card.
 Collateral information

Common Information: Drive name
 Individual Information: —
 Diagnostic Timing
When memory card is inserted or removed.
– Format memory card.
– Reformat memory card.
– Write the QCPU file to the Flash card
OFF/ON Flicker/
ON
Stop/
Continue
(can be set
in the
parameters
at error
occur-
rence)
Qn(H)
QnPH
QnPRH
QnU (except
Q00UJ-, Q00U-
and Q01UCPU)
ICM. OPE. ERROR
– SRAM card failure is detected. (It occurs
when automatic format is not set.)
– Writing parameters was performed during
setting file registers.
 Collateral information

Common Information: Drive name
 Individual Information: —
 Diagnostic Timing
When memory card is inserted or removed.
– Format SRAM card after changing battery of
SRAM card.
– Write a parameter, which sets the file register
at "Not available", in CPU, and then perform
the operation.
QnU (except
Q00UJ-, Q00U-
and Q01UCPU)
2302
ICM. OPE. ERROR
– A memory card that cannot be used with the
CPU module has been installed.
 Collateral information

Common Information: Drive name
 Individual Information: —
 Diagnostic Timing
When memory card is inserted or removed.
– Format memory card.
– Reformat memory card.
– Check memory card.
OFF/ON Flicker/
ON
Stop/
Continue
(can be set
in the
parameters
at error
occur-
rence)
Qn(H)
QnPH
QnPRH
QnU (except
Q00UJ-, Q00U-
and Q01UCPU)
2400
FILE SET ERROR
Automatic write to standard ROM was perfor-
med on the CPU module that is incompatible
with automatic write to standard ROM.
(Memory card where automatic write to standard
ROM was selected in the boot file was fitted and
the parameter enable drive was set to the
memory card.)
 Collateral information

Common Information: File name/Drive name
 Individual Information: Parameter No.
 Diagnostic Timing
At power ON/ At reset/At writing to program-
mable controller
– Execute automatic write to standard ROM on
the CPU module which is compatible with
automatic write to standard ROM.
– Using GX (IEC) Developer, perform write of
parameters and programs to standard ROM.
– Change the memory card for the one where
automatic write to standard ROM has not
been set, and perform boot operation from
the memory card.
OFF Flicker Stop Qn(H)
(Function
version is B or
later)
QnPH
QnPRH
FILE SET ERROR
The file designated at the PLC file settings in the
parameters cannot be found.
 Collateral information

Common Information: File name/Drive name
 Individual Information: Parameter No.
 Diagnostic Timing
At power ON/ At reset/At writing to program-
mable controller
– Read the individual information of the error
using GX (IEC) Developer, check to be sure
that the parameter drive name and file name
correspond to the numerical values there
(parameter number), and correct.
– Create a file created using parameters, and
load it to the CPU module.
)
Error
code
Error contents and cause Corrective action
LED status
CPU
status
Corre-
sponding
CPU
RUN ERR.
Tab. 11-4: Error code list (2000 to 2999) for PLC CPUs of MELSEC System Q