GoodWe

Part of the compatibility overview, which lists every selectable Mains type.

Two types exist. Use GoodWe (ModbusTCP) when it appears in the list (firmware 2.4.15 or newer); it is the recommended path for the current ET platform. The UDP type remains selectable.

GoodWe (Modbus RTU over UDP):

• The inverter must answer on UDP port 8899 and the network must pass UDP traffic to it. The station addresses the inverter by its IP with Modbus device ID 247.
• The inverter's ARM firmware must be current; older firmware does not answer on this port. Ask GoodWe support for an update if the inverter is on the series list but stays silent.
• A GoodWe smart meter (GM3000, GMK110) must be connected to the inverter; the station reads the meter block from the inverter. Without a meter it shows 0 W without an error.
• Series known to answer: BH, BT, EH, EM, EO, ES, ET, HT, SB, AB/AE/AR, EB/ER, UT, C&I.

GoodWe (ModbusTCP):

• Modbus TCP on port 502, Unit ID 247 (GoodWe factory defaults, fixed).
• Covers the unified ET platform (ET, EH, BT, BH, ES G2 and related hybrids) and DT string inverters without battery. First-generation ES and S-BP models are rejected.
• The GoodWe smart meter must be connected; without it the station reports smart meter not connected and does not regulate.
• On installations with two batteries only the first battery is read.