Based on the example about the data communication of HNC and PLC, a communication scheme between HNC and PLC was proposed based on ProfibusDP. The system was made of upper level industrial control computer PLC S7300 and hydraulic controller HNC100. In this technique, SIEMENS S7300 PLC was a master station and communicated with slave station HNC100 by ProfibusDP, so the realtime data communication of the local data was realized.
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李仲杰,吴亦锋,沈在平.基于Profibus-DP的HNC与PLC数据通信实现[J].机床与液压,2016,44(4):101-105. . Data Communication Between HNC and PLC Based on Profibus-DP[J]. Machine Tool & Hydraulics,2016,44(4):101-105