At present, remote PLC Virtual control system based on industry configuration software still has not concrete application in teaching.

目前基于工业组态软件的远程PLC虚拟控制系统在教学上尚无具体的应用。

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The controlling and communication between the PLC and the remote I/O modules are used by the CAN bus, the distance can be several hundred meters.

PLC和远程I/O模块之间的控制和通信通过CAN总线来实现，其通信距离可以达到几百米。

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So far, almost all main providers of PLC and remote I/O devices can provide products with Ethernet interface.

目前几乎所有主要的PLC 和远程I/O 供应商都能提供支持以太网接口的产品。

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