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ESIGN 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 using 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 in the program an interlock circuit that will ensure the system operates safely
based on the communication status information.Failure to do so may cause an accident due to
mis-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 malfunctioning.
(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 which may lead to a serious
存儲(chǔ)卡 Q1MEM-64S
閃存卡 QD81MEM-8GBC
模塊 AJ71ME81
Q系列PLC線性快閃存儲(chǔ)卡 Q2MEM-4MBF
CF卡 GT05-MEM-16GC
可選功能板 GT16-MESB
MES接口模塊 QJ71MES96
可選功能板 GT15-MESB48M
MES接口模塊附件 GT05-MEM-128MC
Q系列編程器SRAM卡用電池 Q3MEM-BAT
存儲(chǔ)卡適配器 GT05-MEM-ADPC
Q系列PLC內(nèi)存卡 Q2MEM-2MBS
CF卡 GT05-MEM-256MC
閃存卡 QD81MEM-1GBC
Q系列編程器ATA卡 Q2MEM-8MBA
CF卡 GT05-MEM-8GC
MES接口模塊附件 GT05-MEM-256MC
Q系列PLC存儲(chǔ)卡 Q3MEM-8MBS
Q系列編程器ATA卡 Q2MEM-32MBA
Q系列PLC內(nèi)存卡 Q2MEM-1MBS
閃存卡 QD81MEM-2GBC
Q系列編程器ATA卡 Q2MEM-16MBA
Q系列PLC內(nèi)存卡 Q3MEM-4MBS
模塊 A1SJ71ME81
Q系列PLC線性快閃存儲(chǔ)卡 Q2MEM-2MBF
Q系列編程器SRAM卡用電池 Q2MEM-BAT
Q系列PLC存儲(chǔ)卡 Q3MEM-4MBS-SET
CF卡 GT05-MEM-512MC
CF卡 GT05-MEM-128MC
CF卡 GT05-MEM-2GC