
12-63
1
2
3
12
6
6
7
8
12.1 Error Code List
12.1.6 Error code list (4000 to 4999)
4505
[SFCP. FORMAT ERR.]
The structure of the SFC program is illegal.
•In the operation output of a step, the SET Sn/
BLmSn or RST Sn/BLmSn instruction was
specified for the host step.
■Collateral information
•Common Information:Program error location
•Individual Information:–
■Diagnostic Timing
•STOP RUN
Read the common information of the error using
GX Developer, and check and correct the error step
corresponding to that value (program error
location).
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
Q00J/Q00/Q01*2
QnU
4506
[SFCP. FORMAT ERR.]
The structure of the SFC program is illegal.
•In a reset step, the host step number was
specified as the destination step.
■Collateral information
•Common Information:Program error location
•Individual Information:–
■Diagnostic Timing
•STOP RUN
4600
[SFCP. OPE. ERROR]
The SFC program contains data that cannot be
processed.
■Collateral information
•Common Information:Program error location
•Individual Information:–
■Diagnostic Timing
•W hen instruction executed
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.
RUN:
Off/On
ERR.:
Flicker/On
CPU Status:
Stop/
Continue*1
Qn(H)
QnPH
QnPRH
4601
[SFCP. OPE. ERROR]
Exceeds device range that can be designated by
the SFC program.
■Collateral information
•Common Information:Program error location
•Individual Information:–
■Diagnostic Timing
•W hen instruction executed
4602
[SFCP. OPE. ERROR]
The START instruction in an SFC program is
preceded by an END instruction.
■Collateral information
•Common Information:Program error location
•Individual Information:–
■Diagnostic Timing
•W hen instruction executed
Error
Code
(SD0)
Error Contents and Cause Corrective Action LED Status
CPU Status
Corresponding
CPU
*1 CPU operation can be set in the parameters at error occurrence. (LED indication varies.)
*2 The function version is B or later.