Reading data from Huawei inverter SUN 2000 (3KTL-10KTL) via modbus TCP and RTU

Try this

Bridge poller slavepowermeter [ start=3700, length=115, refresh=1000, type="holding" ]{
    
        Thing data Powermeter                        [ readStart="37113", readValueType="int32",updateUnchangedValuesEveryMillis="5000000" ]
        Thing data Battery charge-discharge power    [ readStart="37001", readValueType="int32",updateUnchangedValuesEveryMillis="5000000" ]
        Thing data Current-day charge capacity       [ readStart="37015", readValueType="int32",readTransform="JS(divide100.js),updateUnchangedValuesEveryMillis="5000000" ]
        Thing data Current-day discharge capacity    [ readStart="37017", readValueType="int32",readTransform="JS(divide100.js),updateUnchangedValuesEveryMillis="5000000" ]

If you have a fresh install you can folow this tutorial and have everything in the GIU