OPC UA ExtensionObject Simatic S7-1500

Hallo I have a problem and hope you can help me.
I took the example of writing ExtensionObjects.
After I deploy my flows I get following errors if I start the flow:

Maybe someone can help to fix my problem. Please ask if you need more information.

Here is my flow:

[
    {
        "id": "8fa81128505f4289",
        "type": "tab",
        "label": "Write UDT to PLC",
        "disabled": false,
        "info": ""
    },
    {
        "id": "ca77f5b419768afd",
        "type": "comment",
        "z": "8fa81128505f4289",
        "name": "Test Struktur schreiben",
        "info": "Type is stored ns=3;i=3010",
        "x": 140,
        "y": 80,
        "wires": []
    },
    {
        "id": "0835e18cc1d7b5b2",
        "type": "OpcUa-Client",
        "z": "8fa81128505f4289",
        "endpoint": "a5bf82989af42abf",
        "action": "build",
        "deadbandtype": "a",
        "deadbandvalue": 1,
        "time": 10,
        "timeUnit": "s",
        "certificate": "n",
        "localfile": "",
        "localkeyfile": "",
        "securitymode": "None",
        "securitypolicy": "None",
        "folderName4PKI": "",
        "name": "BUILD EXTENSION OBJ.",
        "x": 410,
        "y": 260,
        "wires": [
            [
                "16ae60b8ae0a7ad9",
                "dfd55d99b72414a2"
            ]
        ]
    },
    {
        "id": "3fc4976002f2623a",
        "type": "OpcUa-Item",
        "z": "8fa81128505f4289",
        "item": "ns=3;s=DT_\"udtMaterialIn\"",
        "datatype": "Extension Object",
        "value": "",
        "name": "ScanSettings type",
        "x": 170,
        "y": 260,
        "wires": [
            [
                "0835e18cc1d7b5b2"
            ]
        ]
    },
    {
        "id": "ee4f1853063073d7",
        "type": "inject",
        "z": "8fa81128505f4289",
        "name": "Client Get ExtensionObject",
        "props": [],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "x": 150,
        "y": 160,
        "wires": [
            [
                "3fc4976002f2623a"
            ]
        ]
    },
    {
        "id": "36e4395573ce3f98",
        "type": "function",
        "z": "8fa81128505f4289",
        "name": "Set values",
        "func": "var myvar = {\n    \"szAuftragsnummer\": \"S7OpcUaTest\",\n    \"szAuftragsnamen\" : \"S7OpcUaTest\",\n    \"usiCnt\": \"1\",\n    \"usiNo\": \"2\",\n    \"rAbfuellgroeße\": \"3.1\",\n    \"usiAbfuellmenge\": \"3\",\n    \"rSpeedSwingArm\": \"3.3\",\n    \"rSpeedMixingScrew\": \"3.4\",\n    \"rMischzeit\": \"3.5\",\n    \"szName\": \"3.56\",\n    \"rMenge\": \"3.7\",\n    \"rToleranzAbweichung\": \"3.9\",\n    \"usiZufuehrung\": \"23\",\n    \"rGrobdosierungSpeed\": \"4.3\",\n    \"rUmschaltpunktInhaltsstoff\": \"4.4\",\n    \"rFeindosierungSpeed\": \"4.5\",\n    \"rRuettelzeitVibration\": \"4.6\",\n    \"rRuettelzeitPauseVibration\": \"4.7\",\n    \"rRuettelzeitStampfer\": \"4.8\",\n    \"rRuettelzeitPauseStampfer\": \"4.9\",\n    \"rSpeed22RV105\": \"5.5\",\n    \"rSpeed23RV105S\": \"5.6\",\n    \"rSpeed22M106\": \"5.7\",\n    \"rSpeed22RV108\": \"5.8\",\n    \"rSpeedBlower25M103\": \"5.85\",\n    \"rSpeedBlower35M103\": \"8.9\"\n};\n\n\n//msg.dataType = \"ExtensionObject\";\n// Merge new values to payload\nObject.assign(msg.payload, myvar);\n\n// NOTE:\n// typeId need to constructExtensionObject\n//msg.topic = 'ns=3;s=DT_\"udtMaterialIn\"';\n//msg.datatype = \"ExtensionObject\";\n//return msg;\n\n//msg.topic = '\"ns=3;s=\"DB_TEST\".\"Inhaltstoff\";datatype=ExtensionObject;typeId=ns=3;s=DT_\"udtMaterialIn\"';\n\n\n// typeId need to constructExtensionObject\nmsg.topic = '\"ns=3;s=\"DB_TEST\".\"Inhaltstoff\";datatype=ExtensionObject;typeId=ns=3;s=DT_\"udtMaterialIn\"';\nreturn msg;\n\nreturn msg;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 770,
        "y": 260,
        "wires": [
            [
                "9a244659fad10c15",
                "c53593d5da38a3ec"
            ]
        ]
    },
    {
        "id": "bf52ca3cb1b2b83d",
        "type": "debug",
        "z": "8fa81128505f4289",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "x": 1190,
        "y": 360,
        "wires": []
    },
    {
        "id": "9a244659fad10c15",
        "type": "debug",
        "z": "8fa81128505f4289",
        "name": "debug 23",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "true",
        "targetType": "full",
        "statusVal": "",
        "statusType": "auto",
        "x": 840,
        "y": 360,
        "wires": []
    },
    {
        "id": "16ae60b8ae0a7ad9",
        "type": "debug",
        "z": "8fa81128505f4289",
        "name": "debug 28",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "true",
        "targetType": "full",
        "statusVal": "",
        "statusType": "auto",
        "x": 480,
        "y": 360,
        "wires": []
    },
    {
        "id": "707e5677540ffd13",
        "type": "debug",
        "z": "8fa81128505f4289",
        "name": "debug 29",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "statusVal": "",
        "statusType": "auto",
        "x": 660,
        "y": 360,
        "wires": []
    },
    {
        "id": "ae695aff9dd5d64a",
        "type": "catch",
        "z": "8fa81128505f4289",
        "name": "",
        "scope": null,
        "uncaught": true,
        "x": 240,
        "y": 420,
        "wires": [
            [
                "145a72ed96ba6f41"
            ]
        ]
    },
    {
        "id": "47673455b4b5628d",
        "type": "OpcUa-Client",
        "z": "8fa81128505f4289",
        "endpoint": "a5bf82989af42abf",
        "action": "write",
        "deadbandtype": "a",
        "deadbandvalue": 1,
        "time": 10,
        "timeUnit": "s",
        "certificate": "n",
        "localfile": "",
        "localkeyfile": "",
        "securitymode": "None",
        "securitypolicy": "None",
        "folderName4PKI": "",
        "name": "",
        "x": 1160,
        "y": 260,
        "wires": [
            [
                "bf52ca3cb1b2b83d"
            ]
        ]
    },
    {
        "id": "dfd55d99b72414a2",
        "type": "json",
        "z": "8fa81128505f4289",
        "name": "",
        "property": "payload",
        "action": "obj",
        "pretty": true,
        "x": 610,
        "y": 260,
        "wires": [
            [
                "707e5677540ffd13",
                "36e4395573ce3f98"
            ]
        ]
    },
    {
        "id": "145a72ed96ba6f41",
        "type": "debug",
        "z": "8fa81128505f4289",
        "name": "debug 30",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "statusVal": "",
        "statusType": "auto",
        "x": 500,
        "y": 420,
        "wires": []
    },
    {
        "id": "c53593d5da38a3ec",
        "type": "OpcUa-Item",
        "z": "8fa81128505f4289",
        "item": "\"ns=3;s=\"DB_TEST\".\"Inhaltstoff\"",
        "datatype": "Extension Object",
        "value": "",
        "name": "",
        "x": 960,
        "y": 260,
        "wires": [
            [
                "47673455b4b5628d",
                "b4ebb219ef325aa3"
            ]
        ]
    },
    {
        "id": "b4ebb219ef325aa3",
        "type": "debug",
        "z": "8fa81128505f4289",
        "name": "debug 33",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "true",
        "targetType": "full",
        "statusVal": "",
        "statusType": "auto",
        "x": 1080,
        "y": 400,
        "wires": []
    },
    {
        "id": "a5bf82989af42abf",
        "type": "OpcUa-Endpoint",
        "endpoint": "opc.tcp://192.168.200.30:4840",
        "secpol": "None",
        "secmode": "None",
        "none": false,
        "login": false,
        "usercert": false,
        "usercertificate": "",
        "userprivatekey": ""
    }
]

Best regards Uwe

Error is inside node-opcua, look this link:

I added some more error checking and in your case it can be wrong nodeId for the Extension object type.

I will do some more studies so this code is not yet published.

Error is reported with description (I don´t have your DT_udtMatrialIn of course, but in your case there can be typo):
"Client node error on: BUILD EXTENSION OBJ. error: ["Failed to find extension type for nodeId: ns=3;s=DT_udtMaterialIn error: The node id refers to a node that does not exist in the server address space."]"