ABG10SK6320177 ABB

abb HIER329036P0004
ABB MS116-10,1SAM250000R1010
ABB MS116-10,1SAM250000R1010
ABB TEIP 11
ABB REX521GHHGSH51G

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Description

如出现异常的逻辑信号,则说明出现了故障。因此,可以编制一些常见故障的异常逻辑关系,一旦异常逻辑关系为ON状态,就应按故障处理。例如某机械运动过程中先后有两个限位开关动作,这两个信号不会同时为ON状态,若它们同时为ON,

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