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realtime fronius_site_mppt_voltage & fronius_site_mppt_current_dc with bigger resolution #116
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Hi. Do you need more live data? Or is float64 (double in Java) too small for the values you have? Is this why you're using BigDecimal? This exporter uses the Symo's JSON API over HTTP to access the values from Symo. Unless you can provide me with a sample JSON request that delivers the values you need, I fear you'll have to continue querying your Symo with your code via Modbus. You could extend your code with the Prometheus Client in Java and then combine the data in Prometheus or Grafana Dashboards. |
Ah I see. |
So, that's the point - add another, parallel Modbus datasource and reads voltage values from Modbus instead of archives. There can be also this as an option defined. |
Hi. If you can figure out if the same values are accessible over HTTP/JSON, we can discuss it again, but otherwise I won't implement or accept a PR for Modbus... |
@gitwasi: Have you tried some generic modbus exporter? E. g. https://github.com/RichiH/modbus_exporter |
I'm on the way. I try to figure it how to configure this. |
Going to close this as out-of-scope |
As far as I can understand from sources IDC and UDC are accrued from archive data which provide rather low resolution. I have Java code which gets this data from Modbus. It is also accessible directlly from inverter and data resolution is almost the sama as main inverter data (load, grid, pv) but id don't know how to implement this in GO.
I have Fronius Symo 8.2-3-M
My code uses:
Procedure to acquire data looks as follows:
And there are two functions thats converts modbus integers to floats:
Mabe somebody will implement this in the exporter to boost current and voltage data resolution.
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