1 files changed, 49 insertions, 4 deletions

diff --git a/demo/NodePage.qml b/demo/NodePage.qml
index e9ae236..e677232 100644
--- a/demo/NodePage.qml
+++ b/demo/NodePage.qml
@@ -14,7 +14,20 @@ Page {
 
     readonly property var pages: [
         {
+            title: "Server Info",
+            description: "Standard OPC UA server nodes (namespace 0)."
+                + " CurrentTime updates live via monitoring.",
+            nodes: [
+                "ns=0;i=2258",  // CurrentTime
+                "ns=0;i=2257",  // StartTime
+                "ns=0;i=2259",  // State
+                "ns=0;i=2261",  // ProductName
+                "ns=0;i=2264"   // SoftwareVersion
+            ]
+        },
+        {
             title: "Read-Write Scalars",
+            description: "Single-value nodes with read and write access.",
             nodes: [
                 "ns=1;s=bool_rw_scalar",
                 "ns=1;s=int16_rw_scalar",
@@ -35,6 +48,7 @@ Page {
         },
         {
             title: "Read-Only Scalars",
+            description: "Single-value nodes with read-only access.",
             nodes: [
                 "ns=1;s=bool_ro_scalar",
                 "ns=1;s=int16_ro_scalar",
@@ -55,6 +69,9 @@ Page {
         },
         {
             title: "Read-Write Arrays",
+            description: "Array nodes. Values are displayed comma-separated."
+                + " To write, enter comma-separated values (e.g. \"1, 2, 3\")."
+                + " Commas cannot appear inside individual values.",
             nodes: [
                 "ns=1;s=bool_rw_array",
                 "ns=1;s=int16_rw_array",
@@ -74,6 +91,16 @@ Page {
             ]
         },
         {
+            title: "Non-Existent Nodes",
+            description: "These node IDs do not exist on the server."
+                + " The row should show no value and no metadata in the tooltip.",
+            nodes: [
+                "ns=1;s=does_not_exist",
+                "ns=99;i=12345",
+                "ns=1;s=also_missing"
+            ]
+        },
+        {
             title: "Empty (Monitoring Test)",
             description: "No nodes on this page. All previous pages are inactive,"
                 + " so the server log should show zero active monitored items.",
@@ -83,6 +110,22 @@ Page {
 
     readonly property var currentPage: pages[pageNumber - 1]
 
+    // OPC UA ServerState enum (Part 4, Table 120).
+    readonly property var serverStates: [
+        "Running", "Failed", "NoConfiguration", "Suspended",
+        "Shutdown", "Test", "CommunicationFault", "Unknown"
+    ]
+
+    function formatValue(node) {
+        var v = node.value;
+        if (v === undefined || String(v) === "")
+            return "—";
+        // Map ServerState enum to human-readable string.
+        if (node.nodeId === "ns=0;i=2259" && !isNaN(v))
+            return serverStates[v] || String(v);
+        return String(v);
+    }
+
     Component.onCompleted: nodePage.logFunction(
         currentPage.title + " page loaded (" + currentPage.nodes.length + " nodes)")
 
@@ -133,7 +176,7 @@ Page {
             Label {
                 text: "Value"
                 font.bold: true
-                Layout.preferredWidth: 160
+                Layout.preferredWidth: 300
             }
             Label {
                 text: "Write"
@@ -180,9 +223,11 @@ Page {
                 contentItem: RowLayout {
                     spacing: 12
 
-                    // Column 1: Identifier
+                    // Column 1: Display name if available, otherwise short ID.
                     Label {
                         text: {
+                            if (node.info.displayName)
+                                return node.info.displayName;
                             var idx = node.nodeId.indexOf(";s=");
                             return idx >= 0 ? node.nodeId.substring(idx + 3) : node.nodeId;
                         }
@@ -192,8 +237,8 @@ Page {
 
                     // Column 2: Live value (always visible)
                     Label {
-                        text: node.value !== undefined && String(node.value) !== "" ? String(node.value) : "—"
-                        Layout.preferredWidth: 160
+                        text: nodePage.formatValue(node)
+                        Layout.preferredWidth: 300
                         elide: Text.ElideRight
                     }