Comments (5)
Well, I found the modbus documentation for my inverter on the internet. From the above screenshots I can't tell what type of inverter you have, and I have no idea whether the documentation is available for that online.
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Hello, thank you very much for replying. My inverter model is Growatt MIN 4200TL-XH. Theoretically it already uses the RTU Version II protocol version. You can see it here. https://www.photovoltaicsolar.in/Growatt_Manual/MAX%20Series%20Modbus%20RTU%20Protocol.pdf .But I am not very clear which can be the code that corresponds to the energy that is exported.
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Well, it is not clear for me either. But I think you need to try with some of the high registers and see they provide and useful information. Like Input register 1015-1016, 1021-1022, 1023-1024, 1029-1030. This is my best guess.
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Hello, did you finally figure out the correct modbus address? I have the same problem
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It seems like you're using the Eastron SDM230 for single-phase energy measurement. I found the following document for it: https://bg-etech.de/download/manual/SDM230-register.pdf. The registers start at 30001 in this document, which might be helpful. Unfortunately, I don't have any knowledge of Modbus or programming, so I can't be of further assistance.
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Related Issues (20)
- RS232 Viability HOT 2
- useModulPower HOT 3
- SOC data request HOT 2
- Use growatt2mqtt for evcc HOT 3
- WDT Timeout Issue HOT 11
- Growatt MOD 6000TL3-X HOT 4
- Sending setMaxOutput to MQTT HOT 6
- my version HOT 3
- unable to use setMaxOutput HOT 4
- Smart Meter emulation ingtegration HOT 3
- Growatt MIN 3600TL-XE ? HOT 5
- is it possible to enable/disable and change export limits via modbus for mic type inverters HOT 1
- Used your code! Thanks! Reworked main as code seems to freeze HOT 2
- "PV energy today" and "PV energy total" register missmatch HOT 6
- Monitor multiple inverters? Multi-phase, parallel installation. HOT 5
- [Question] useModulPower outside the mqtt context HOT 4
- Changes in Libraries?
- Adapting for 3 phase inverter HOT 2
- "maxpower" setting? HOT 3
- Change the publish frequency HOT 3
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