12-61
1
2
3
12
6
6
7
8
12.1 Error Code List
12.1.6 Error code list (4000 to 4999)
4421
[CAN'T SET(S)]
Total number of steps in all SFC programs exceed
the maximum.
■Collateral information
•Common Information:Program error location
•Individual Information:–
■Diagnostic Timing
•STOP RUN Write the program to the CPU module again using
GX Developer.
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
Q00J/Q00/Q01*2
Qn(H)
QnPH
QnPRH
QnU
4422
[CAN'T SET(S)]
Step number designations overlap in SFC program.
■Collateral information
•Common Information:Program error location
•Individual Information:–
■Diagnostic Timing
•STOP RUN
4423
[CAN'T SET(S)]
The total number of (maximum step No.+1) of each
block exceeds the total number of step relays.
■Collateral information
•Common Information:Program error location
•Individual Information:–
■Diagnostic Timing
•STOP RUN
Correct the total number of step relays so that it
does not exceed the total number of (maximum
step No.+1) of each block.
Q00J/Q00/Q01*2
QnU
4430
[SFC EXE. ERROR]
The SFC program cannot be executed.
•The data of the block data setting is illegal.
•The SFC data device of the block data setting is
beyond the device setting range set in the PLC
parameter.
■Collateral information
•Common Information:File name/Drive name
•Individual Information:–
■Diagnostic Timing
•STOP RUN
•Write the program to the CPU module again
using GX Developer.
•After correcting the setting of the SFC data
device, write it to the CPU module.
•After correcting the device setting range set in
the PLC parameter, write it to the CPU module.
4431
[SFC EXE. ERROR]
The SFC program cannot be executed.
•The block parameter setting is abnormal.
■Collateral information
•Common Information:File name/Drive name
•Individual Information:–
■Diagnostic Timing
•STOP RUN Write the program to the CPU module again using
GX Developer.
4432
[SFC EXE. ERROR]
The SFC program cannot be executed.
•The structure of the SFC program is illegal.
■Collateral information
•Common Information:File name/Drive name
•Individual Information:–
■Diagnostic Timing
•STOP RUN
Error
Code
(SD0)
Error Contents and Cause Corrective Action LED Status
CPU Status
Corresponding
CPU
*2 The function version is B or later.