Mitsubishi MELSEC Q Series Programming Manual

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12.1 Error Code List 12.1.6 Error code list (4000 to 4999)
4500
[SFCP. FORMAT ERR.]
The numbers of BLOCK and BEND instructions in
an SFC program are not equal.
■Collateral information
• Common information: Program error location
• Individual information:-
■Diagnostic Timing
•STOP→RUN
Write the program to the CPU module again using
the programming tool.
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
Qn(H)
QnPH
QnPRH
4501
[SFCP. FORMAT ERR.]
The configuration of the STEP* to TRAN* to TSET
to SEND instructions in the SFC program is
incorrect.
■Collateral information
• Common information: Program error location
• Individual information:-
■Diagnostic Timing
•STOP→RUN
4502
[SFCP. FORMAT ERR.]
The structure of the SFC program is illegal.
• STEPI* instruction does not exist in the block of
the SFC program.
■Collateral information
• Common information: Program error location
• Individual information:-
■Diagnostic Timing
•STOP→RUN
Q00J/Q00/Q01
*8
Qn(H)
QnPH
QnPRH
QnU
LCPU
4503
[SFCP. FORMAT ERR.]
The structure of the SFC program is illegal.
• The step specified in the TSET instruction does
not exist.
• In jump transition, the host step number was
specified as the destination step number.
■Collateral information
• Common information: Program error location
• Individual information:-
■Diagnostic Timing
•STOP→RUN
• Write the program to the CPU module again
using the programming tool.
• Read common information of the error using
the programming tool to identify the numeric
value (program error location). Check the error
step corresponding to the value, and correct it
as necessary.
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
Q00J/Q00/Q01
*8
Qn(H)
QnPH
QnPRH
[SFCP. FORMAT ERR.]
The structure of the SFC program is illegal.
• The step specified in the TSET instruction does
not exist.
■Collateral information
• Common information: Program error location
• Individual information:-
■Diagnostic Timing
• When instruction executed
QnU
LCPU
4504
[SFCP. FORMAT ERR.]
The structure of the SFC program is illegal.
• The step specified in the TAND instruction does
not exist.
■Collateral information
• Common information: Program error location
• Individual information:-
■Diagnostic Timing
• When instruction executed
Write the program to the CPU module again using
the programming tool.
Q00J/Q00/Q01
*8
Qn(H)
QnPH
QnPRH
QnU
LCPU
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
• When instruction executed
Read common information of the error using the
programming tool to identify the numeric value
(program error location). Check the error step
corresponding to the value, and correct it as
necessary.
Q00J/Q00/Q01
*8
QnU
LCPU
Error
Code
(SD0)
Error Contents and Cause Corrective Action
LED Status
CPU Status
Corresponding
CPU

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English