diff --git a/.env.development b/.env.development
index 0d2cf46..676983f 100644
--- a/.env.development
+++ b/.env.development
@@ -6,6 +6,6 @@ NEXT_PUBLIC_USE_MOCK_BACKEND_LOOP_START=false
 NEXT_PUBLIC_EXPORT_STATIC=false
 NEXT_PUBLIC_USE_CGI=false
 # App-Versionsnummer
-NEXT_PUBLIC_APP_VERSION=1.6.658
+NEXT_PUBLIC_APP_VERSION=1.6.659
 NEXT_PUBLIC_CPL_MODE=json   # json (Entwicklungsumgebung) oder jsSimulatedProd (CPL ->CGI-Interface-Simulator) oder production (CPL-> CGI-Interface Platzhalter)
 
diff --git a/.env.production b/.env.production
index ccd910d..5bc7909 100644
--- a/.env.production
+++ b/.env.production
@@ -5,5 +5,5 @@ NEXT_PUBLIC_CPL_API_PATH=/CPL
 NEXT_PUBLIC_EXPORT_STATIC=true
 NEXT_PUBLIC_USE_CGI=true
 # App-Versionsnummer
-NEXT_PUBLIC_APP_VERSION=1.6.658
+NEXT_PUBLIC_APP_VERSION=1.6.659
 NEXT_PUBLIC_CPL_MODE=production
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2c0aebc..7de33b6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## [1.6.659] – 2025-07-31
+
+- feat: Display und Chart für KÜs
+
+---
 ## [1.6.658] – 2025-07-31
 
 - feat; in KÜ Chart RSL und ISO start button
diff --git a/components/main/kabelueberwachung/kue705FO/Charts/LoopMeasurementChart/LoopChartActionBar.tsx b/components/main/kabelueberwachung/kue705FO/Charts/LoopMeasurementChart/LoopChartActionBar.tsx
index e253fe5..58c1be4 100644
--- a/components/main/kabelueberwachung/kue705FO/Charts/LoopMeasurementChart/LoopChartActionBar.tsx
+++ b/components/main/kabelueberwachung/kue705FO/Charts/LoopMeasurementChart/LoopChartActionBar.tsx
@@ -7,12 +7,10 @@ import { RootState } from "@/redux/store";
 import {
   setLoopMeasurementCurveChartData,
   setSelectedMode,
-  setSelectedSlotType,
   setChartOpen,
   setLoading,
 } from "@/redux/slices/kabelueberwachungChartSlice";
 import { setBrushRange } from "@/redux/slices/brushSlice";
-import { setChartTitle } from "@/redux/slices/loopChartTypeSlice";
 import { Listbox } from "@headlessui/react";
 
 //-----------------------------------------------------------------------------------useLoopChartLoader
@@ -130,6 +128,32 @@ const LoopChartActionBar: React.FC = () => {
     return `${year};${month};${day}`;
   };
 
+  const handleStartRSL = async () => {
+    if (slotNumber === null) {
+      alert("⚠️ Bitte zuerst einen KÜ auswählen!");
+      return;
+    }
+
+    const cgiUrl = `${window.location.origin}/CPL?kabelueberwachung.html&KS_${slotNumber}=1`;
+
+    try {
+      console.log("🚀 Starte RSL Messung für Slot:", slotNumber);
+      console.log("📡 CGI URL:", cgiUrl);
+
+      const response = await fetch(cgiUrl);
+
+      if (!response.ok) {
+        throw new Error(`CGI-Fehler: ${response.status}`);
+      }
+
+      console.log("✅ RSL Messung gestartet für Slot", slotNumber);
+      alert(`✅ RSL Messung für Slot ${slotNumber + 1} gestartet`);
+    } catch (err) {
+      console.error("❌ Fehler beim Starten der RSL Messung:", err);
+      alert("❌ Fehler beim Starten der RSL Messung.");
+    }
+  };
+
   const handleFetchData = async () => {
     const type = selectedSlotType === "schleifenwiderstand" ? 4 : 3;
 
@@ -260,7 +284,7 @@ const LoopChartActionBar: React.FC = () => {
 
         {/* Schleife starten button*/}
         <button
-          onClick={handleFetchData}
+          onClick={handleStartRSL}
           className="px-4 py-1 bg-littwin-blue text-white rounded text-sm whitespace-nowrap"
           disabled={isLoading}
         >
diff --git a/package-lock.json b/package-lock.json
index 96dc33c..5dd8480 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "cpl-v4",
-  "version": "1.6.658",
+  "version": "1.6.659",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "cpl-v4",
-      "version": "1.6.658",
+      "version": "1.6.659",
       "dependencies": {
         "@fontsource/roboto": "^5.1.0",
         "@headlessui/react": "^2.2.4",
diff --git a/package.json b/package.json
index 0ad538c..c4db6a1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cpl-v4",
-  "version": "1.6.658",
+  "version": "1.6.659",
   "private": true,
   "scripts": {
     "dev": "next dev",