Filter
Top Products
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.