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The diagram on the next left is a diagram of the communication structure of the test bad.
It was implemented using mmslite api, an api according to IEC 61850.
Raspberry Pi, an IEC 61850 server, measures solar power generation, battery storage, and power consumed by the load and maps it to the corresponding logical node.
IEC 61850 client requests the measured value to the server, which uses mms to send the requested value to the client.
The Client acts as a server supporting HTTP communication at the same time and transmits the measured value to the EMS.
The EMS posts the received value on the web page, and relay control is also possible on the web page.
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IEEE/ICACT20230159 Slide.11
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