Huawei SUN2000: handle cascading inverters

templates/definition/meter/huawei-sun2000.yaml

@@ -32,6 +32,9 @@ params:
     advanced: true
   - name: capacity
     advanced: true
+  - name: sun2000cascade
+    default: false
+    advanced: true
 render: |
   type: custom
   {{- if eq .usage "grid" }}
@@ -164,6 +167,7 @@ render: |
                 address: 47100 # Forcible charge/discharge
                 type: writesingle
                 encoding: uint16
+          {{- if eq .sun2000cascade "false" }}
           - source: const
             value: 0 # Disable
             set:
@@ -173,6 +177,7 @@ render: |
                 address: 47087 # Charge from grid
                 type: writesingle
                 encoding: uint16
+          {{- end }}
       - case: 2 # hold
         set:
           source: sequence

util/templates/defaults.yaml

@@ -310,6 +310,16 @@ params:
       en: Power limit for grid charging.
       de: Leistungslimit für Netzladung.
     default: 100
+  - name: sun2000cascade
+    type: bool
+    description:
+      en: Inverter cascade
+      de: Wechselrichterkaskade
+    help:
+      en: For inverter cascades (AC charging remains active to charge the storage from other inverters via AC) set to Yes.
+      de: Für Wechselrichterkaskaden (AC-Laden bleibt aktiv zum Laden des Speichers aus anderen WR via AC) auf Ja.
+    usages: ["battery"]
+
 presets:
   vehicle-base:
     params: