2711E-T14C6X A-B

ABB PP836
GE SR469-P5-HI-A20-E
EMERSON FX-455
EMERSON VE3007
Honeywell TK-PRS021
ABB 3HAC025338-006
ABB PU515A

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Description

该按钮未按下时,输入继电器X0线圈状态为“1”通电状态,程序中所有X0触点均动作,即常开触点接通,常闭触点断开;若按下该按钮,则输入继电器X0线圈状态为“0”断电状态,程序中所有X0触点均恢复常态。如果输入继电器连接的输入设备是按钮SB0的常开触点,则情况恰好相反:在该按钮未按下时,输入继电器X0线圈状态为“0”断电状态,程序中所有X0触点均不动作;若按下该按钮,

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