ASD-A2-1521-L Delta 继电器

WESTINGHOUSE 1C31219G01
A-B 1771-IFE
SLIMPAK G468-0001
A-B 1771-IFE/A
FOXBORO P0904HA
BAUMER UNDK30P3712/S14
ABB CI801 3BSE022366R1
ABB CI801 3BSE022366R1
A-B 1203-GD1
A-B 1794-IE8
A-B 1756-ENBT
A-B 1771-OX
SCHNEIDER 140XBP01600
A-B 1771-OX
A-B 1771-OFE2
Schneider 140CRA93200
A-B 1746-NO4I
GE IC200ALG264
A-B 1756-PA75/B

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Description

当电源接通时,电路中所有继电器都处于受制约状态,即该吸合的继电器都同时吸合,不该吸合的继电器受某种条件限制而不能吸合,这种工作方式称为并行工作方式。而PLC的用户程序是按一定顺序循环执行,所以各软继电器都处于周期性循环扫描接通中

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