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| Analysis of Communication between DCS and PLC |
| Received:June 30, 2021 |
| DOI：10.11980/j.issn.0254-508X.2021.10.012 |
| Key Words:DCS PLC DP/DP coupler |
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| Abstract:More and more modern enterprises widely used DCS to complete the control and operation of the production line. Due to different equipment providers， a production line might have more than 2 control systems. In order to achieve the complete control and operation of the entire production line， data exchange was required between different control systems to complete the integration between systems. Based on the communication between Siemens S7-400 and METSO DNA system， the method to achieve the communication between the DCS and the PLC through the DP/DP coupler was introduced in this paper. |
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