Mitsubishi QJ71BR11 - Page 331

8 TROUBLESHOOTING
MELSEC-Q
8 - 120 8 - 120
*1 : Characters in parentheses ( ) indicate the special register numbers where individual information is being
stored.
*12: This applies to the CPU module of function version B or later.
Error
Code
(SD0)
*1
Error Contents and Cause Corrective Action
Corresponding
CPU
4230
The number of CHK and CHKEND
instructions is not equal.
Read the common information of the
error using the peripheral device,
check error step corresponding to its
numerical value (program error
location), and correct the problem.
QnA
Qn(H)
QnPH
4231
The number of IX and IXEND
instructions is not equal.
4235
The configuration of the check
conditions for the CHK instruction is
incorrect.
Alternatively, a CHK instruction has
been used in a low speed execution
type program.
QnA
Qn(H)
QnPH
4300
The designation of a MELSECNET/
MINI-S3 master module control
instruction was wrong.
Read the common information of the
error using the peripheral device,
check error step corresponding to its
numerical value (program error
location), and correct the problem.
QnA
4301
The designation of an AD57/AD58
control instruction was wrong.
4400
No SFCP or SFCPEND instruction in
SFC program.
Read common information of the error
using the peripheral device, check
error step corresponding to its
numerical value (program error
location), and correct the problem.
QnA
Qn(H)
QnPH
QnPRH
4410
The block number designated by the
SFC program exceeds the range.
4411
Block number designations overlap in
SFC program.
4420
A step number designated in an SFC
program exceeds the range.