PPT5200 PPT VISION 继电器

A-B 1756-L61
WESTINGHOUSE 1C31203G01
BENTLY NEVADA 3500/50
YOKOGAWA CP451
SST SST-PB3-CLX
HONEYWLL TK-PRS021
SCHNEIDER AS-J890-102
ESTIC ENRZ-AU40-10
ABB SDCS-FEX-4
Cutler-Hammer KT3315TA
PFEIFFER EVR116
HONEYWELL TC-PRS021
A-B 1440-RMA00-04RC
GE TPMC815-11

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Description

PLC的接线包括输入接线和输出接线。输入接线的长度不宜过长,一般不大于30m;在线路距离较长时,可采用中间继电器进行信号的转换。输入接线的COM端与输出接线的COM端不能接在一起。输入接线与输出接线的电缆应分开设置。必要时,可在现场分别设置接线箱。集成电路或晶体管设备的输入信号和输出信号的接线必须采用屏蔽电缆;

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