diff --git a/backend/app/routers/sites.py b/backend/app/routers/sites.py
index ac26269..c8b0eb4 100644
--- a/backend/app/routers/sites.py
+++ b/backend/app/routers/sites.py
@@ -366,6 +366,9 @@ class DeyeRegistersLiveResponse(BaseModel):
     reg142_limit_control: int
     reg143_export_limit_w: int
     reg178_peak_shaving_switch: int
+    reg178_control_board_special_1: int
+    reg178_mi_export_cutoff_bits: int
+    reg178_mi_export_cutoff_is_on: bool
     reg191_peak_shaving_w: int
     read_at: str
 
diff --git a/frontend/src/api/backend.ts b/frontend/src/api/backend.ts
index 78d135e..c891c2f 100644
--- a/frontend/src/api/backend.ts
+++ b/frontend/src/api/backend.ts
@@ -433,6 +433,9 @@ export type DeyeRegistersLive = {
   reg142_limit_control: number
   reg143_export_limit_w: number
   reg178_peak_shaving_switch: number
+  reg178_control_board_special_1: number
+  reg178_mi_export_cutoff_bits: number
+  reg178_mi_export_cutoff_is_on: boolean
   reg191_peak_shaving_w: number
   read_at: string
 }
diff --git a/frontend/src/components/ControlPanel.tsx b/frontend/src/components/ControlPanel.tsx
index 4b03892..cba0027 100644
--- a/frontend/src/components/ControlPanel.tsx
+++ b/frontend/src/components/ControlPanel.tsx
@@ -90,6 +90,16 @@ const LiveRegistersSection = memo(
             sub="Bit4–5: 10 = disable při exportu, 11 = enable při IDLE/CHARGE"
             valueText={live?.reg178_peak_shaving_switch != null ? String(live.reg178_peak_shaving_switch) : undefined}
           />
+          <Metric
+            label="MI export cutoff (GEN)"
+            reg={178}
+            sub="Bits0–1: 2 = disable (cutoff OFF), 3 = enable (cutoff ON)"
+            valueText={
+              live
+                ? `${live.reg178_mi_export_cutoff_is_on ? 'ON (enable=3)' : 'OFF (disable=2)'} · bits0–1=${live.reg178_mi_export_cutoff_bits} · reg178=${live.reg178_control_board_special_1}`
+                : undefined
+            }
+          />
           <Metric
             label="Grid peak shaving W"
             reg={191}
@@ -112,6 +122,9 @@ const LiveRegistersSection = memo(
     a.live?.reg142_limit_control === b.live?.reg142_limit_control &&
     a.live?.reg143_export_limit_w === b.live?.reg143_export_limit_w &&
     a.live?.reg178_peak_shaving_switch === b.live?.reg178_peak_shaving_switch &&
+    a.live?.reg178_control_board_special_1 === b.live?.reg178_control_board_special_1 &&
+    a.live?.reg178_mi_export_cutoff_bits === b.live?.reg178_mi_export_cutoff_bits &&
+    a.live?.reg178_mi_export_cutoff_is_on === b.live?.reg178_mi_export_cutoff_is_on &&
     a.live?.reg191_peak_shaving_w === b.live?.reg191_peak_shaving_w,
 )