Store this manual in a safe place for future reference and also pass it on to the end user.

[DESIGN PRECAUTIONS]
!
DANGER
If a communication error occurs in the network, the error station (MELSEC-ST system) shows
the following behavior:
All outputs turn OFF. (In the MELSEC-ST system, the output status at the time of error can be
set to clear/hold/preset by user parameters of each slice module. As "clear" is set by default,
the outputs turn OFF when an error occurs. In the case where the system operates safely with
the output set to "hold" or "preset", change the parameter settings.)
Create an interlock circuit on the program so that the system operates safely based on the
communication status information. Failure to do so may cause an accident due to faulty output
or malfunction.

Create an external fail safe circuit that will ensure the MELSEC-ST system operates safely,
even when the external power supply or the system fails.
Accident may occur due to output error or malfunction.
(1) The status of output changes depending on the setting of various functions that control the
output. Take sufficient caution when setting for those functions.
(2) Normal output may not be obtained due to malfunctions of output elements or the internal
circuits. Configure a circuit to monitor signals whose operations may lead to a serious
accident.
MES接口模块 QJ71MES96
闪存卡 QD81MEM-512MBC
CF卡 GT05-MEM-512MC
Q系列PLC内存卡 Q2MEM-2MBS
CF卡 GT05-MEM-1GC
Q系列PLC存储卡 Q3MEM-8MBS
MES接口模块附件 GT05-MEM-256MC
闪存卡 QD81MEM-2GBC
模块 A1SJ71ME81
闪存卡 QD81MEM-4GBC
CF卡 GT05-MEM-128MC
可选功能板 GT15-MESB48M
可选功能板 GT16-MESB
Q系列PLC线性快闪存储卡 Q2MEM-2MBF
存储卡 Q1MEM-64S
Q系列编程器ATA卡 Q2MEM-8MBA
CF卡 GT05-MEM-2GC
Q系列编程器SRAM卡用电池 Q2MEM-BAT
Q系列PLC存储卡 Q3MEM-8MBS-SET
Q系列PLC线性快闪存储卡 Q2MEM-4MBF
Q系列PLC内存卡 Q2MEM-1MBS
闪存卡 QD81MEM-8GBC
CF卡 GT05-MEM-16GC
Q系列PLC存储卡 Q3MEM-4MBS-SET
Q系列编程器ATA卡 Q2MEM-16MBA
CF卡 GT05-MEM-256MC
闪存卡 QD81MEM-1GBC
Q系列PLC内存卡 Q3MEM-4MBS
模块 AJ71ME81
CF卡 GT05-MEM-4GC