Mitsubishi MELSEC Q4ARCPU User Manual page 225

Error
Code Error Contents and Cause
(SD0)
The numbers of BLOCK and BEND
4500 instructions in an SFC program are not
equal.
The configuration of the STEP* to
4501 TRAN* to TSET to SEND instructions in
the SFC program is incorrect.
The structure of the SFC program is
illegal.
4502
• STEPI* instruction does not exist in
the block of the SFC program.
The structure of the SFC program is
illegal.
• The step specified in the TSET
4503 instruction does not exist.
• In jump transition, the host step
number was specified as the
destination step number.
The structure of the SFC program is
illegal.
4504
• The step specified in the TAND
instruction does not exist.
The structure of the SFC program is
illegal.
• In the operation output of a step, the
4505
SET Sn/BLmSn or RST Sn/BLmSn
instruction was specified for the host
step.
The structure of the SFC program is
illegal.
4506
• In a reset step, the host step number
was specified as the destination step.
The SFC program contains data that
4600
cannot be processed.
Exceeds device range that can be
4601
designated by the SFC program.
The START instruction in an SFC
4602 program is preceded by an END
instruction.
*3 The module whose first 5 digits of serial No. is 04012 or later.
*4 The module whose first 5 digits of serial No. is 07012 or later.
*5 The module whose first 5 digits of serial No. is 07032 or later.
*6 The module whose first 5 digits of serial No. is 09012 or later.
*7 The Universal model QCPU except the Q02UCPU.
Corrective Action
Write the program to the CPU module
again using the peripheral device.
• Write the program to the CPU module
again using GX Developer.
• Read the common information of the
error using GX Developer, and check
and correct the error step
corresponding to that value (program
error location).
Write the program to the CPU module
again using GX Developer.
Read the common information of the
error using GX Developer, and check
and correct the error step
corresponding to that value (program
error location).
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.
212
Corresponding
CPU
QnA
Qn(H)
QnPH
QnPRH
QnA
Q00J/Q00/
*2
Q01
Qn(H)
QnPH
QnPRH
QnU
Q00J/Q00/
*2
Q01
QnU
QnA
Qn(H)
QnPH
QnPRH