Mitsubishi MELSEC Q Series Programming Manual page 988

Error
Code Error Contents and Cause
(SD0)
[CAN'T SET(S)]
Total number of steps in all the SFC programs
exceeded the maximum value.
■Collateral information
4421
• Common information: Program error location
• Individual information:-
■Diagnostic Timing
• At power-on/At reset/STOP→RUN
[CAN'T SET(S)]
Step number designations overlap in SFC
program.
■Collateral information
4422
• Common information: Program error location
• Individual information:-
■Diagnostic Timing
• At power-on/At reset/STOP→RUN
[CAN'T SET(S)]
The total number of (maximum step No.+1) of
each block exceeds the total number of step
relays.
4423 ■Collateral information
• Common information: Program error location
• Individual information:-
■Diagnostic Timing
• At power-on/At reset/STOP→RUN
[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 dialog box.
4430
■Collateral information
• Common information: File name/Drive name
• Individual information:-
■Diagnostic Timing
• At power-on/At reset/STOP→RUN/When SFC
program is executed
[SFC EXE. ERROR]
The SFC program cannot be executed.
• The block parameter setting is abnormal.
■Collateral information
4431
• Common information: File name/Drive name
• Individual information:-
■Diagnostic Timing
• At power-on/At reset/STOP→RUN
[SFC EXE. ERROR]
The SFC program cannot be executed.
• The structure of the SFC program is illegal.
■Collateral information
4432
• Common information: File name/Drive name
• Individual information:-
■Diagnostic Timing
• At power-on/At reset/STOP→RUN
12-68
Corrective Action
Write the program to the CPU module again using
the programming tool.
Correct the total number of step relays so that it
does not exceed the total number of (maximum
step No.+1) of each block.
• Write the program to the CPU module again
using the programming tool.
• After correcting the setting of the SFC data
device, write it to the CPU module.
• Correct the device setting range in the PLC
Parameter dialog box, and write it to the CPU
module.
Write the program to the CPU module again using
the programming tool.
LED Status Corresponding
CPU Status CPU
RUN:
Q00J/Q00/Q01
Off
Qn(H)
ERR.:
QnPH
Flicker
QnPRH
QnU
CPU Status:
LCPU
Stop
RUN:
Off
ERR.:
Q00J/Q00/Q01
Flicker
QnU
LCPU
CPU Status:
Stop
*8
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