Mitsubishi Q2ACPU User Manual

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22. TROUBLE SHOOTING
4500
[SFCP. FORMAT ERR.]
The numbers of BLOCK and BEND instructions in
an SFC program are not equal.
■Collateral informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• STOP RUN
Write the program to the CPU module again using
the peripheral device.
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
QnA
4501
[SFCP. FORMAT ERR.]
The configuration of the STEP* to TRAN* to TSET
to SEND instructions in the SFC program is
incorrect.
■Collateral informationmmon
• 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 informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• STOP RUN
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 informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• STOP RUN
• 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).
4504
[SFCP. FORMAT ERR.]
The structure of the SFC program is illegal.
• The step specified in the TAND instruction does
not exist.
■Collateral informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• STOP RUN
Write the program to the CPU module again using
GX Developer.
4600
[SFCP. OPE. ERROR]
The SFC program contains data that cannot be
processed.
■Collateral informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• When 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
Error
Code
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.)

Mitsubishi Q2ACPU Specifications

General

Brand	Mitsubishi
Model	Q2ACPU
Category	Controller
Language	English