diff --git a/web/feeder/html/source-panel.html b/web/feeder/html/source-panel.html
deleted file mode 100644
index 90f9fe6..0000000
--- a/web/feeder/html/source-panel.html
+++ /dev/null
@@ -1,22 +0,0 @@
-<section class="panel bottom-left">
-  <div class="stack-panel">
-    <div class="stack-section">
-      <div class="panel-head">
-        <h2>控制单元</h2>
-        <div class="toolbar">
-          <button type="button" class="secondary" id="refreshUnitBtn">刷新</button>
-          <button type="button" id="newUnitBtn">+ 新增</button>
-        </div>
-      </div>
-      <div class="list unit-list" id="unitList"></div>
-    </div>
-
-    <div class="stack-section stack-section-bordered">
-      <div class="panel-head">
-        <h2>数据源</h2>
-        <button type="button" id="openSourceForm">+ 新增</button>
-      </div>
-      <div class="source-panels" id="sourceList"></div>
-    </div>
-  </div>
-</section>
diff --git a/web/feeder/js/app.js b/web/feeder/js/app.js
index 11daa1b..dc6b147 100644
--- a/web/feeder/js/app.js
+++ b/web/feeder/js/app.js
@@ -96,8 +96,8 @@ function bindEvents() {
   dom.batchBindingForm.addEventListener("submit", (event) => withStatus(saveBatchBinding(event)));
 
   dom.unitResetBtn.addEventListener("click", resetUnitForm);
-  dom.refreshUnitBtn.addEventListener("click", () => withStatus(loadUnits().then(loadEvents)));
-  dom.newUnitBtn.addEventListener("click", openCreateUnitModal);
+  if (dom.refreshUnitBtn) dom.refreshUnitBtn.addEventListener("click", () => withStatus(loadUnits().then(loadEvents)));
+  if (dom.newUnitBtn) dom.newUnitBtn.addEventListener("click", openCreateUnitModal);
   dom.closeUnitModalBtn.addEventListener("click", closeUnitModal);
 
   dom.sourceResetBtn.addEventListener("click", () => dom.sourceForm.reset());
@@ -183,7 +183,7 @@ function bindEvents() {
   dom.tabAppConfig.addEventListener("click", () => switchView("app-config"));
   dom.tabConfig.addEventListener("click", () => switchView("config"));
 
-  dom.refreshUnitBtn2.addEventListener("click", () => withStatus(loadUnits()));
+  dom.refreshUnitBtn2.addEventListener("click", () => withStatus(loadUnits().then(loadEvents)));
   dom.newUnitBtn2.addEventListener("click", openCreateUnitModal);
 
   document.addEventListener("equipments-updated", () => {
diff --git a/web/feeder/js/units.js b/web/feeder/js/units.js
index 3de467d..30006bb 100644
--- a/web/feeder/js/units.js
+++ b/web/feeder/js/units.js
@@ -97,92 +97,104 @@ function runtimeBadge(runtime) {
   return `<span class="badge ${cls}">${label}</span>`;
 }
 
-export function renderUnits() {
-  dom.unitList.innerHTML = "";
-
-  if (!state.units.length) {
-    dom.unitList.innerHTML = '<div class="list-item"><div class="muted">暂无控制单元</div></div>';
-    return;
-  }
-
-  state.units.forEach((unit) => {
-    const card = document.createElement("div");
-    const selected = state.selectedUnitId === unit.id;
-    card.className = `list-item unit-card ${selected ? "selected" : ""}`;
-    const runtime = state.runtimes.get(unit.id);
-    card.innerHTML = `
-      <div class="row">
-        <strong>${unit.code}</strong>
-        ${runtimeBadge(runtime)}
-        <span class="badge ${unit.enabled ? "" : "offline"}">${unit.enabled ? "EN" : "DIS"}</span>
-      </div>
-      <div>${unit.name}</div>
-      <div class="muted">设备 ${equipmentCount(unit.id)} 台 | Acc ${runtime ? Math.floor(runtime.display_acc_sec / 1000) : 0}s</div>
-      <div class="muted">Run ${unit.run_time_sec}s / Stop ${unit.stop_time_sec}s / Acc ${unit.acc_time_sec}s / BL ${unit.bl_time_sec}s</div>
-      <div class="row unit-card-actions"></div>
-    `;
+function buildUnitCard(unit, interactive) {
+  const card = document.createElement("div");
+  const selected = interactive && state.selectedUnitId === unit.id;
+  card.className = `list-item unit-card ${selected ? "selected" : ""}`;
+  const runtime = state.runtimes.get(unit.id);
+  card.innerHTML = `
+    <div class="row">
+      <strong>${unit.code}</strong>
+      ${runtimeBadge(runtime)}
+      <span class="badge ${unit.enabled ? "" : "offline"}">${unit.enabled ? "EN" : "DIS"}</span>
+    </div>
+    <div>${unit.name}</div>
+    <div class="muted">设备 ${equipmentCount(unit.id)} 台 | Acc ${runtime ? Math.floor(runtime.display_acc_sec / 1000) : 0}s</div>
+    <div class="muted">Run ${unit.run_time_sec}s / Stop ${unit.stop_time_sec}s / Acc ${unit.acc_time_sec}s / BL ${unit.bl_time_sec}s</div>
+    <div class="row unit-card-actions"></div>
+  `;
 
+  if (interactive) {
     card.addEventListener("click", () => {
       selectUnit(unit.id).catch((error) => {
         dom.statusText.textContent = error.message;
       });
     });
+  }
 
-    const actions = card.querySelector(".unit-card-actions");
+  const actions = card.querySelector(".unit-card-actions");
 
-    const editBtn = document.createElement("button");
-    editBtn.className = "secondary";
-    editBtn.textContent = "Edit";
-    editBtn.addEventListener("click", (event) => {
-      event.stopPropagation();
-      openEditUnitModal(unit);
-    });
-
-    const deleteBtn = document.createElement("button");
-    deleteBtn.className = "danger";
-    deleteBtn.textContent = "Delete";
-    deleteBtn.addEventListener("click", (event) => {
-      event.stopPropagation();
-      deleteUnit(unit.id).catch((error) => {
-        dom.statusText.textContent = error.message;
-      });
-    });
-
-    actions.append(editBtn, deleteBtn);
-
-    const isAutoOn = runtime?.auto_enabled;
-    const startBlocked = !isAutoOn && (runtime?.fault_locked || runtime?.manual_ack_required || runtime?.rem_local);
-    const autoBtn = document.createElement("button");
-    autoBtn.className = isAutoOn ? "danger" : "secondary";
-    autoBtn.textContent = isAutoOn ? "Stop Auto" : "Start Auto";
-    autoBtn.disabled = startBlocked;
-    autoBtn.title = startBlocked
-      ? (runtime?.fault_locked ? "设备故障中，无法启动自动控制"
-         : runtime?.rem_local ? "设备处于本地模式(REM关)，无法启动自动控制"
-         : "需人工确认故障后才可启动自动控制")
-      : (isAutoOn ? "停止自动控制" : "启动自动控制");
-    autoBtn.addEventListener("click", (e) => {
-      e.stopPropagation();
-      const url = `/api/control/unit/${unit.id}/${isAutoOn ? "stop-auto" : "start-auto"}`;
-      apiFetch(url, { method: "POST" }).then(() => loadUnits()).catch(() => {});
-    });
-    actions.append(autoBtn);
-
-    if (runtime?.manual_ack_required) {
-      const ackBtn = document.createElement("button");
-      ackBtn.className = "danger";
-      ackBtn.textContent = "Ack Fault";
-      ackBtn.title = "人工确认解除故障锁定";
-      ackBtn.addEventListener("click", (e) => {
-        e.stopPropagation();
-        apiFetch(`/api/control/unit/${unit.id}/ack-fault`, { method: "POST" })
-          .then(() => loadUnits()).catch(() => {});
-      });
-      actions.append(ackBtn);
-    }
-
-    dom.unitList.appendChild(card);
+  const editBtn = document.createElement("button");
+  editBtn.className = "secondary";
+  editBtn.textContent = "Edit";
+  editBtn.addEventListener("click", (event) => {
+    event.stopPropagation();
+    openEditUnitModal(unit);
   });
+
+  const deleteBtn = document.createElement("button");
+  deleteBtn.className = "danger";
+  deleteBtn.textContent = "Delete";
+  deleteBtn.addEventListener("click", (event) => {
+    event.stopPropagation();
+    deleteUnit(unit.id).catch((error) => {
+      dom.statusText.textContent = error.message;
+    });
+  });
+
+  actions.append(editBtn, deleteBtn);
+
+  const isAutoOn = runtime?.auto_enabled;
+  const startBlocked = !isAutoOn && (runtime?.fault_locked || runtime?.manual_ack_required || runtime?.rem_local);
+  const autoBtn = document.createElement("button");
+  autoBtn.className = isAutoOn ? "danger" : "secondary";
+  autoBtn.textContent = isAutoOn ? "Stop Auto" : "Start Auto";
+  autoBtn.disabled = startBlocked;
+  autoBtn.title = startBlocked
+    ? (runtime?.fault_locked ? "设备故障中，无法启动自动控制"
+       : runtime?.rem_local ? "设备处于本地模式(REM关)，无法启动自动控制"
+       : "需人工确认故障后才可启动自动控制")
+    : (isAutoOn ? "停止自动控制" : "启动自动控制");
+  autoBtn.addEventListener("click", (e) => {
+    e.stopPropagation();
+    const url = `/api/control/unit/${unit.id}/${isAutoOn ? "stop-auto" : "start-auto"}`;
+    apiFetch(url, { method: "POST" }).then(() => loadUnits()).catch(() => {});
+  });
+  actions.append(autoBtn);
+
+  if (runtime?.manual_ack_required) {
+    const ackBtn = document.createElement("button");
+    ackBtn.className = "danger";
+    ackBtn.textContent = "Ack Fault";
+    ackBtn.title = "人工确认解除故障锁定";
+    ackBtn.addEventListener("click", (e) => {
+      e.stopPropagation();
+      apiFetch(`/api/control/unit/${unit.id}/ack-fault`, { method: "POST" })
+        .then(() => loadUnits()).catch(() => {});
+    });
+    actions.append(ackBtn);
+  }
+
+  return card;
+}
+
+function renderToContainer(container, interactive) {
+  if (!container) return;
+  container.innerHTML = "";
+
+  if (!state.units.length) {
+    container.innerHTML = '<div class="list-item"><div class="muted">暂无控制单元</div></div>';
+    return;
+  }
+
+  state.units.forEach((unit) => {
+    container.appendChild(buildUnitCard(unit, interactive));
+  });
+}
+
+export function renderUnits() {
+  renderToContainer(dom.unitList, true);
+  renderToContainer(dom.unitConfigList, false);
 }
 
 export async function loadUnits() {