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jantenhove / GoodWeLogger

ESP8266 based logger for GoodWe inverters. Can upload to pvoutput and publishes MQTT topics
GNU General Public License v3.0
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CRC calculator #31

Open MiG-41 opened 4 years ago

MiG-41 commented 4 years ago

Does anyone know online CRC generator ? Till now i havn't found any siutable to that goodwe , Bytes AA 55 01 AB 00 81 00 on all of them not giving CRC 02 2C ...

ThinkPadNL commented 3 years ago

I read here https://github.com/jantenhove/GoodWeLogger/issues/28#issuecomment-633685012 that his 1500-XS uses "CRC-16/MODBUS". Maybe that information helps you further?

dirksenrdh commented 3 years ago

http://www.ghsi.de/pages/subpages/Online%20CRC%20Calculation/ at least this is a CRC calculator. the polynomial is according to the Goodwe documentation for de GW8K-DT CRC multinomial：X16+X12+X5+1 over all bytes (before the CRC bytes)