DS200PCCAG7A GE

PWB194A3395G1
IC3600AFRA1A1A
PWB194A3396G1
469L951G1
IC3650SPFA1B
PWB218A9392G1
404X737G01l1P-33
404X737G01L1P-4J
IC3600SCBA1
IC3603A177CH5 POTTED-RELAY
IC3603A177CH6 POTTED-RELAY
IC3603A177CJ3 RELAY MED-DUTY POTTED W/DIODE
IC3603A177CJ6 POTTED-RELAY
IC3603A200A TIRASTAT-MODULE

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描述

PLC的结构虽有箱体及模块式之分,但从质上看,箱体也是模块,只是它集成了更多的功能。在此,不妨把PLC的模块组成当作所有PLC的结构性能。

这个性能含义是指某型号PLC具有多少种模块,各种模块都有什么规格,并各具什么特点。

一般讲,规模大的PLC,档次高的PLC模块的种类也多,规格也多,反映它的特点的性能指标也高。但模块的功能则单一些。相反,小型PLC、档次低的PLC模块种类也少,规格也少,指标也低。但功能则多样些,以至于集成为箱体。

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