The sending and receiving communication procedure between SIMATIC 400 Station and SIMATIC 300 Station, specific network configuration, network connection, protocol selection, usage of asynchronous communication function blocks and monitor results are introduced.%介绍在SIMATIC 400 Station和SIMATIC 300 Station之间发送和接收数据的通信过程,具体介绍网络配置和网络连接,以及如何选择协议、如何使用异步通信功能块及监控结果。
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