Merge pull request #2203 from rosenrot00/fix/growatt-dms-detection

Add support for Growatt MOD 8000TL3-HU (DMS)

Author: wills106

custom_components/solax_modbus/plugin_growatt.py

@@ -9701,6 +9701,8 @@ async def async_determineInverterType(self, hub: Any, configdict: dict[str, Any]
             invertertype = HYBRID | GEN4 | X1  # MOD 4000 TL3-XH Hybrid, 2 MPPT
         elif seriesnumber.startswith("DPS"):
             invertertype = HYBRID | GEN4 | X3  # MOD 5000 TL3-HU Hybrid, 2 MPPT
+        elif seriesnumber.startswith("DMS"):
+            invertertype = HYBRID | GEN4 | X3 | MPPT3  # MOD 8000 TL3-HU Hybrid, 3 MPPT
         elif seriesnumber.startswith("DKS"):
             invertertype = HYBRID | GEN4 | X3 | MPPT3  # MOD 10000 TL3-HU Hybrid, 3 MPPT
         elif seriesnumber.startswith("DO1"):

tests/unit/test_growatt_dms_detection.py

@@ -0,0 +1,55 @@
+from typing import Any
+
+import pytest
+
+from custom_components.solax_modbus.plugin_growatt import (
+    GEN4,
+    HYBRID,
+    MPPT3,
+    X3,
+)
+from custom_components.solax_modbus.plugin_growatt import (
+    plugin_instance as growatt_plugin,
+)
+
+
+@pytest.mark.asyncio
+async def test_dms_serial_detects_mod_8000_tl3_hu(mock_hub: Any) -> None:
+    serial_number = "DMS8G1E00M"
+    serial_registers = [int.from_bytes(serial_number[index : index + 2].encode(), byteorder="big") for index in range(0, len(serial_number), 2)]
+    firmware = b"DO1.0ZBDC\x00"
+    firmware_registers = [int.from_bytes(firmware[index : index + 2], byteorder="big") for index in range(0, len(firmware), 2)]
+    mock_hub.configure_read(
+        1,
+        3001,
+        5,
+        type(
+            "MockResponse",
+            (),
+            {
+                "registers": serial_registers,
+                "isError": lambda self: False,
+            },
+        )(),
+    )
+    mock_hub.configure_read(
+        1,
+        9,
+        5,
+        type(
+            "MockResponse",
+            (),
+            {
+                "registers": firmware_registers,
+                "isError": lambda self: False,
+            },
+        )(),
+    )
+
+    inverter_type = await growatt_plugin.async_determineInverterType(
+        mock_hub,
+        {"read_eps": False, "read_dcb": False},
+    )
+
+    assert inverter_type == HYBRID | GEN4 | X3 | MPPT3
+    assert mock_hub.seriesnumber == serial_number