User`s manual

Troubleshooting Error code list
11 – 70
4020
CAN’T SET (P)
The total number of internal file pointers used by
the program exceeds the number of internal file
pointers set in the parameters.
Collateral information
Common Information: Program error location
Individual Information: —
Diagnostic Timing
At power ON/At reset/STOP RUN
Read the common information of the error using
GX (IEC) Developer, check error step corre-
sponding to its numerical value (program error
location), and correct the problem.
OFF Flicker Stop Qn(H)
QnPH
QnPRH
QnU
4021
CAN’T SET (P)
The common pointer Nos. assigned to files
overlap.
The local pointer Nos. assigned to files over-
lap.
Collateral information
Common Information: Program error location
Individual Information: —
Diagnostic Timing
At power ON/At reset/STOP RUN
Read the common information of the error using
GX (IEC) Developer, check error step corre-
sponding to its numerical value (program error
location), and correct the problem.
OFF Flicker Stop
)
4030
CAN’T SET (I)
The allocation pointer Nos. assigned by files
overlap.
Collateral information
Common Information: Program error location
Individual Information: —
Diagnostic Timing
At power ON/At reset/STOP RUN
Read the common information of the error using
GX (IEC) Developer, check error step corre-
sponding to its numerical value (program error
location), and correct the problem.
OFF Flicker Stop
)
4100
OPERATION ERROR
The instruction cannot process the contained
data.
Collateral information
Common Information: Program error location
Individual Information: —
Diagnostic Timing
When instruction executed
Read the common information of the error using
GX (IEC) Developer, check error step corre-
sponding to its numerical value (program error
location), and correct the problem.
OFF/ON Flicker/
ON
Stop/
Continue
(can be set
in the
parameters
at error
occur-
rence)
)
OPERATION ERROR
Access error of ATA card occurs by SP.FREAD/
SP.FWRITE instructions.
Collateral information
Common Information: Program error location
Individual Information: —
Diagnostic Timing
When instruction executed
Take noise reduction measures.
Reset and restart the CPU module.
When the same error is displayed again, the
ATA card has hardware failure.
Contact your local Mitsubishi representative.
Qn(H)
QnPH
QnPRH
QnU (except
Q00UJ-, Q00U-
and Q01UCPU)
OPERATION ERROR
The file being accessed by other functions was
accessed with SP.FWRITE instruction.
Collateral information
Common Information: Program error location
Individual Information: —
Diagnostic Timing
When instruction executed
Stop the file accessed with other functions to
execute SP.FWRITE instruction.
Stop the access with other functions and the
SP.FWRITE instruction execution at the same
time.
QnU (except
Q00UJ-, Q00U-
and Q01UCPU)
Error
code
Error contents and cause Corrective action
LED status
CPU
status
Corre-
sponding
CPU
RUN ERR.
Tab. 11-6: Error code list (4000 to 4999) for PLC CPUs of MELSEC System Q