User`s manual

Error code list Troubleshooting
MELSEC System Q, Hardware 11 – 77
4350
MULTI-COM.ERROR
– The multiple CPU high-speed transmission
dedicated instruction used in the program
specifies the wrong CPU module. Or, the set-
ting in the CPU module is incompatible with
the multiple CPU high-speed transmission
dedicated instruction.
– The reserved CPU is specified.
– The uninstalled CPU is specified.
– The head I/O number of the target CPU/16
(n1) is outside the range of 3E H to 3E3 H .
– The CPU module where the instruction cannot
be executed is specified.
– The instruction is executed in a single CPU
system.
– The host CPU is specified.
– The instruction is executed without setting the
"Use multiple CPU high speed communica-
tion".
 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 Flicker Stop QnU (except
Q00UJ-, Q00U-,
Q01U- and
Q02UCPU)
4351
MULTI-COM.ERROR
– The multiple CPU high-speed transmission
dedicated instruction specified by the pro-
gram cannot be executed to the specified tar-
get CPU module.
– The instruction name is wrong.
– The instruction unsupported by the target
CPU module is specified.
 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 Flicker Stop QnU (except
Q00UJ-, Q00U-,
Q01U- and
Q02UCPU)
4352
MULTI-COM.ERROR
The number of devices for the multiple CPU
highspeed transmission dedicated instruction
specified by the program is wrong.
 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 Flicker Stop QnU (except
Q00UJ-, Q00U-,
Q01U- and
Q02UCPU)
4353
MULTI-COM.ERROR
The device which cannot be used for the multiple
CPU high-speed transmission dedicated instruc-
tion specified by the program is specified.
 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 Flicker Stop QnU (except
Q00UJ-, Q00U-,
Q01U- and
Q02UCPU)
4354
MULTI-COM.ERROR
The character string which cannot be handled by
the multiple CPU high-speed transmission dedi-
cated instruction is specified.
 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 Flicker Stop QnU (except
Q00UJ-, Q00U-,
Q01U- and
Q02UCPU)
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