IC693CPU374

IC693CPU374

通信接口

    PLC配有各种通信接口，这些通信接口一般都带有通信处理器。PLC通过这些通信接口可与监视器、打印机、其它PLC、计算机等设备实现通信。PLC与打印机连接，可将过程信息、系统参数等输出打印；与监视器连接，可将控制过程图像显示出来；与其它PLC连接，可组成多机系统或连成网络，实现更大规模控制。 与计算机连接，可组成多级分布式控制系统，实现控制与管理相结合。

远程I/O系统也必须配备相应的通信接口模块。

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