描述
加强PLC联网通信的能力,是PLC技术进步的潮流。PLC的联网通信有两类:一类是PLC之间联网通信,各PLC生产厂家都有自己的专有联网手段;另一类是PLC与计算机之间的联网通信,一般PLC都有专用通信模块与计算机通信。为了加强联网通信能力,PLC生产厂家之间也在协商制订通用的通信标准,以构成更大的网络系统,PLC已成为集散控制系统(DCS)不可缺少的重要组成部分。
DEC 54-24801-03 Alphaserver 800 500MHZ CPU BOARD
DEC T2052-AA XMMI CPU BOARD
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HP M1059-66501UTIL-CPU Board Card HIL
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Williams pinball controller CPU Board WPC-89 Fliptronic
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DEC 54-30158-B3 ALPHA SERVER ES40 500 MHZ CPU Board
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MOTOROLA HA MCP 750 PCI CPU BOARD HA-MCP-750 CARD
Yamaha 31-710007-001 CPU Board
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