描述
当用PLC进行网络设计时，其难度比PLC单机控制大得多。首先你应选用自己较熟悉的机型，对其基本指令和功能指令有较深入的了解，并且指令的执行速度和用户程序存储容量也应仔细了解。否则，不能适应你的实时要求，造成系统崩溃。另外，对通信接口、通信协议
X2612A 501-4883 Sun Enterprise SBus I/O Board
SUN 300-1454 -04 T3/T3+ PSU w/ Battery Pack 370-3956
Dell PE 1750 PERC4 Battery & Bracket 2X426 + LI103450E
CN-07T600 DELL PowerEdge1750 Power Dist. Box
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IBM 39Y6089 NetXtreme 1000 SX Fiber Ethernet adapter
Cisco WIC-1AM 1-Port Analog Modem WAN Interface Card
HP E7671-63001 16A Power Distribution Unit 5183-1837
Compaq DL580 450W Power Supply 401401-001 101920-001
