Communication configuration issues between DCS and PLC systems
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I would like to consult the technical experts: Our company uses a DCS system (DeltaV-v8.4) equipped with a Profibus communication card (Profibus-DP). There is a field station there that utilizes a Siemens S7-200 PLC system to control two circulation water pumps, thereby regulating the flow rate and temperature of the circulating cooling water used in the process. The station is equipped with a CPU 226 and an EM277 Profibus-DP communication card; shielded twisted pair cables are used to connect the station (S7-200) to the DCS system. Since I know very little about communications, I would like to ask the following question. 1. How are the communication settings and communication software configured for the sub-station S7-200? 2. What information do the PLC control points need to provide for DeltaV system communication configuration, and how is the DeltaV communication software configured? 3. How can one get started with configuring communication software? Thank you all for your support! jsnjhu
Does the PLC support Profibus communication?
The S7-200 does not support Profibus-DP by itself, but Profibus-DP communication can be enabled by adding an EM277 card.