update

.idea/workspace.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="RunManager">
+  <component name="ChangeListManager">
+    <list default="true" id="e733891a-c063-4f94-92d6-4559e921107b" name="Default Changelist" comment="" />
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="Git.Settings">
+    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
+  </component>
+  <component name="ProjectId" id="2MBBW17AOFLvAzWG4Yg12wAh3jz" />
+  <component name="ProjectViewState">
+    <option name="hideEmptyMiddlePackages" value="true" />
+    <option name="showLibraryContents" value="true" />
+  </component>
+  <component name="PropertiesComponent">
+    <property name="RunOnceActivity.OpenProjectViewOnStart" value="true" />
+    <property name="RunOnceActivity.ShowReadmeOnStart" value="true" />
+    <property name="last_opened_file_path" value="$PROJECT_DIR$" />
+  </component>
+  <component name="RecentsManager">
+    <key name="MoveFile.RECENT_KEYS">
+      <recent name="D:\opcua-cloning" />
+    </key>
+  </component>
+  <component name="RunManager" selected="Python.opcua-client">
     <configuration name="main" type="PythonConfigurationType" factoryName="Python" nameIsGenerated="true">
       <module name="opcua-cloning" />
       <option name="INTERPRETER_OPTIONS" value="" />
@@ -22,5 +47,42 @@
       <option name="INPUT_FILE" value="" />
       <method v="2" />
     </configuration>
+    <configuration name="opcua-client" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
+      <module name="opcua-cloning" />
+      <option name="INTERPRETER_OPTIONS" value="" />
+      <option name="PARENT_ENVS" value="true" />
+      <envs>
+        <env name="PYTHONUNBUFFERED" value="1" />
+      </envs>
+      <option name="SDK_HOME" value="" />
+      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+      <option name="IS_MODULE_SDK" value="true" />
+      <option name="ADD_CONTENT_ROOTS" value="true" />
+      <option name="ADD_SOURCE_ROOTS" value="true" />
+      <option name="SCRIPT_NAME" value="$PROJECT_DIR$/opcua-client.py" />
+      <option name="PARAMETERS" value="" />
+      <option name="SHOW_COMMAND_LINE" value="false" />
+      <option name="EMULATE_TERMINAL" value="false" />
+      <option name="MODULE_MODE" value="false" />
+      <option name="REDIRECT_INPUT" value="false" />
+      <option name="INPUT_FILE" value="" />
+      <method v="2" />
+    </configuration>
+    <recent_temporary>
+      <list>
+        <item itemvalue="Python.opcua-client" />
+      </list>
+    </recent_temporary>
+  </component>
+  <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="e733891a-c063-4f94-92d6-4559e921107b" name="Default Changelist" comment="" />
+      <created>1677231122232</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1677231122232</updated>
+    </task>
+    <servers />
   </component>
 </project>
\ No newline at end of file

opcua-client.py

-from opcua import Client
-
-url = "opc.tcp://klblrlp1437.corp.knowledgelens.com:53530/OPCUA/SimulationServer"
-client = Client(url)
-client.connect()
-
-root = client.get_root_node()
-objects = root.get_children()
-for obj in objects:
-    print(f"Object: {obj.get_browse_name()}")
-
-    nodes = obj.get_children()
-    for node in nodes:
-        node_id = node.nodeid.Identifier
-        identifier = node.get_browse_name().Name
-        if(node_id==str('85/0:Simulation')):
-            object_node = client.get_node(node)
-            subnodes=node.get_children()
-            for snode in subnodes:
-                value = client.get_node(snode).get_value()
-                print(value)
-client.disconnect()
+import asyncio
+import socket
+
+from asyncua import Client, Node
+from asyncua.common.subscription import DataChangeNotif, SubHandler
+
+msgFromClient = "Hello UDP Server"
+bytesToSend = str.encode(msgFromClient)
+serverAddressPort = ("2.2.2.5", 20001)
+bufferSize = 1024
+UDPClientSocket = socket.socket(family=socket.AF_INET, type=socket.SOCK_DGRAM)
+
+ENDPOINT = 'opc.tcp://2.2.2.7:53530/OPCUA/SimulationServer'
+NAMESPACE = 'http://www.prosysopc.com/OPCUA/SimulationServer/'
+
+class MyHandler(SubHandler):
+    def __init__(self):
+        self._queue = asyncio.Queue()
+
+    def datachange_notification(self, node: Node, value, data: DataChangeNotif) -> None:
+        self._queue.put_nowait([node, value, data])
+
+
+    async def process(self) -> None:
+        try:
+            while True:
+                # Get data in a queue.
+                [node, value, data] = self._queue.get_nowait()
+                path = await node.get_path(as_string=True)
+                datatype = type(value)
+
+                packet = str(datatype) + "&" + str(value) + "&" + 'ns=' + str(node.nodeid.NamespaceIndex) + ";i=" + str(node.nodeid.Identifier)
+                UDPClientSocket.sendto(str.encode(packet), serverAddressPort)
+
+        except asyncio.QueueEmpty:
+            pass
+
+
+async def get_nodes(client):
+    subnodes = None
+    root = client.get_root_node()
+    objects = await root.get_children()
+    for obj in objects:
+        nodes = await obj.get_children()
+        for node in nodes:
+            node_id = node.nodeid.Identifier
+            if (node_id == str('85/0:Simulation')):
+                subnodes = await node.get_children()
+    return subnodes
+
+
+async def main() -> None:
+    async with Client(url=ENDPOINT) as client:
+        # Get a variable node.
+        node = await get_nodes(client)
+        # Subscribe data change.
+        handler = MyHandler()
+        subscription = await client.create_subscription(period=0, handler=handler)
+        await subscription.subscribe_data_change(node)
+
+        # Process data change every 100ms
+        while True:
+            await handler.process()
+            await asyncio.sleep(0.1)
+
+if __name__ == '__main__':
+    asyncio.run(main())
+