diff --git a/templates/definition/meter/fronius-gen24.yaml b/templates/definition/meter/fronius-gen24.yaml
index 51fd35e0d..7d7835ba0 100644
--- a/templates/definition/meter/fronius-gen24.yaml
+++ b/templates/definition/meter/fronius-gen24.yaml
@@ -124,6 +124,13 @@ render: |
             uri: {{ .host }}:{{ .port }}
             id: 1
             value: 124:0:OutWRte
+        - source: const
+          value: 0 # s
+          set:
+            source: sunspec
+            uri: {{ .host }}:{{ .port }}
+            id: 1
+            value: 124:0:InOutWRte_RvrtTms
     - case: 3 # charge
       set:
         source: sequence
@@ -149,5 +156,12 @@ render: |
             uri: {{ .host }}:{{ .port }}
             id: 1
             value: 124:0:OutWRte
+        - source: const
+          value: 0 # s
+          set:
+            source: sunspec
+            uri: {{ .host }}:{{ .port }}
+            id: 1
+            value: 124:0:InOutWRte_RvrtTms
   capacity: {{ .capacity }} # kWh
   {{- end }}
diff --git a/templates/definition/meter/sunspec-inverter-control.yaml b/templates/definition/meter/sunspec-inverter-control.yaml
index 7d4f14c35..8a597fc06 100644
--- a/templates/definition/meter/sunspec-inverter-control.yaml
+++ b/templates/definition/meter/sunspec-inverter-control.yaml
@@ -81,6 +81,12 @@ render: |
             source: sunspec
             {{- include "modbus" . | indent 10 }}
             value: 124:0:OutWRte
+        - source: const
+          value: 0 # s
+          set:
+            source: sunspec
+            {{- include "modbus" . | indent 10 }}
+            value: 124:0:InOutWRte_RvrtTms
     - case: 3 # charge
       set:
         source: sequence
@@ -103,5 +109,11 @@ render: |
             source: sunspec
             {{- include "modbus" . | indent 10 }}
             value: 124:0:OutWRte
+        - source: const
+          value: 0 # s
+          set:
+            source: sunspec
+            {{- include "modbus" . | indent 10 }}
+            value: 124:0:InOutWRte_RvrtTms
   capacity: {{ .capacity }} # kWh
   {{- end }}