描述
为了确保通讯成功,DCS生产厂家无论是电缆,还是通讯口,都把它们做成冗余的。一条网络发生故障,另一条备用网络立即投入运行。备用方式各种DCS有别。
(2) NEW R. B. Denison JK2 Limit Switch Operating Heads
SICK WT27L-2S830A Proximity Sensor
Allen-Bradley 700-RTC1111OU1 Type RTC Solid State Timer
Allen-Bradley 700-RT00N000A1/B Solid State Timer
OMRON F3SP-U2P Muting Controller for 1-2 Safety Curtain
(5) Allen-Bradley 1492-SPU1C150 Circuit Breakers 15A
Reliance Electric 0-51862-1 USAB Drive Module
(3) Allen-Bradley 1794-TB3 Flex I/O Terminal Bases