Battery fixes using modbus simulator

Author: WillCodeForCats

custom_components/solaredge_modbus_multi/hub.py

@@ -722,10 +722,10 @@ def __init__(self, device_id: int, battery_id: int, hub: SolarEdgeModbusMultiHub
 
         self.manufacturer = self.decoded_common['B_Manufacturer']
         self.model = self.decoded_common['B_Model']
-        self.option = None
+        self.option = ''
         self.fw_version = self.decoded_common['B_Version']
         self.serial = self.decoded_common['B_SerialNumber']
-        self.device_address = self.decoded_common['B_Device_address']
+        self.device_address = self.decoded_common['B_Device_Address']
         self.name = f"{hub.hub_id.capitalize()} B{self.battery_id}"
 
         self._device_info = {
@@ -806,3 +806,7 @@ def online(self) -> bool:
     @property
     def device_info(self) -> Optional[Dict[str, Any]]:
         return self._device_info        
+
+    @property
+    def single_device_entity(self) -> bool:
+        return self.hub._single_device_entity

custom_components/solaredge_modbus_multi/sensor.py

@@ -265,9 +265,12 @@ def extra_state_attributes(self):
                 attrs["sunspec_device"] = "unknown"
 
         except KeyError:
-            attrs["sunspec_device"] = "unknown"
+            attrs["sunspec_device"] = None
 
-        attrs["sunspec_did"] = self._platform.decoded_model['C_SunSpec_DID']
+        try:
+            attrs["sunspec_did"] = self._platform.decoded_model['C_SunSpec_DID']
+        except KeyError:
+            attrs["sunspec_did"] = None
 
         return attrs