描述
外部设备的信号通过冗余配置(模拟量)或通过扩展转换(开关量)分别送入2套DCS系统。同时因保证不出现误操作事故，还增加了相当部分的判据条件和I／0测点，这种方式的优点是当一台机组停运或检修，可以较方便地对DCS进行检查，同时也增大了控制的可靠性，缺点是增加了外部设备的数量
Fuji Electric Pulse Amplifier TR284228 New
HoneyWell C7012A 1202 Purple Peeper UV Flame Detector
Honeywell 51304754-150 HIGH LEVEL ANALOG-INPUT TDC3000
Lot 8 POWERLINK PLC-5220 Gen-Set Controllers SOLD AS IS
AIS-CTRX classe B transponder True Heading 20060701-1
NetApp 111-J9999RC+A2 FAS3020 Motherboard Refurbished
Refurb Fuji Inverter FVR3.7E9S-2TS for ICHINOSE Machine
OMRON Pair Safety Light Curtain F3SJ-A0520N30-L & D NEW
Agilent 5067-0223 PRECISION GAS FLOW METER NEW
ALGOTEX STREAM 100IE332 Electronic Box Stream (USB) New
Alcatel DFAN6 R2.1 3AL98116AA FAN UNIT for 1662SMC New
