描述
DCS或PLC系统的关键是通信。也可以说数据公路是分散控制系统DCS及PLC的脊柱。由于它的任务是为系统所有部件之间提供通信网络,因此,数据公路自身的设计就决定了总体的灵活性和安全性。数据公路的媒体可以是:一对绞线、同轴电缆或光纤电缆。
NEW HONEYWELL RA890F-1346 FLAME RELAY RA890F 1346 3
AMETEK GEMCO 1986B1XRX RESOLVER
NEW ALLEN BRADLEY 808-J2 SWITCH 808J2 SERIES F
NEW FUSION UV 256041 MAGNATRON KIT 554171 AND 554172
EDDY TAC CURRENT BRAKE CONTROLLER 040553X
DOLAN JENNER A241P ILLUMINATOR SYSTEM NEW
NEW MARPOSS A90 PROBE 415911606
NEW KEITHLEY KPC1-3116 BOARD KPC13116
DATA HANDLER CIRCUIT BOARD A-60010-703
CUTLER HAMMER IQPSUI480 IQ POWER SENTINEL
NEW KOYO FC-320-1 PROGRAMMABLE CAM SWITCH FC3201
NEW DAYTRONIC 4077 GUAGE