描述
输入设备SB1、SB2、FR与PLC内部的“软继电器”X0、X1、X2的“线圈”对应,由输入设备控制相对应的“软继电器”的状态,即通过这些“软继电器”将外部输入设备状态变成PLC内部的状态,这类“软继电器”称为输入继电器;同理,输出设备KM与PLC内部的“软继电器”Y0对应,由“软继电器”Y0状态控制对应的输出设备KM的状态,即通过这些“软继电器”将PLC内部状态输出,以控制外部输出设备,这类“软继电器”称为输出继电器。
XYCOM 5017-T FLAT PANEL MONITOR 5017
XYCOM 8000-SKM
Xycom 9487 Operating Interface USED Free Shipping
XYCOM 8320 OPERATOR INTERFACE DISPLAY***XLNT***
XYCOM 9406-ACT/9406ACT INDUSTRIAL COMPUTER PANEL*XLNT*
Xycom 3510-0104140012006 Operator Interface 513332-F-A
XYCOM SRM XVME-010 PCB
Xycom Automation 70490-001 VME Card
XYCOM LCD MONITOR TOUCH SCREEN 9487 OPERATOR PANEL CRT
XYCOM PM9403T/9403T CONTROLLER **NIB**
XYCOM Mod 2060 Panel Mount Control Interface 98500-021
Xycom 3410 T 301412001300P Interface 513332-F-95
XYCOM 3015 T OPERATOR INTERFACE 15IN TOUCHSCREEN *XLNT*
XYCOM LCD MONITOR TOUCH SCREEN 9487-27B2118010000 USED
XYCOM AOUT XVME-530 PCB
Xycom 4810E IT Operator Terminal #25490