encodeObject Error when trying to perform Monitoring via a Listener Node

shantanoo-desai commented 2 years ago

Which node-red-contrib-iiot-opcua version are you using?

4.0.1

What happened?

Description

I am trying to perform a simple monitoring via the Listener Node on particular OPC-UA node. I have a simulated OPC-UA Server, via Node-RED v2.2.2 I am trying to observe the values from the OPC-UA node in the debug window.

Environment

Window 10 + Windows Subsystem for Linux 2 (Ubuntu 20.04)
Docker / Docker Compose version (v20.10.17/v2.6.0)
Prosys OPC UA Simulation Server (v5.2.2-9)
Custom Node-RED Docker Container Image with v2.2.2
node-red-contrib-iiot-opcua with v4.0.1

Server

Other/External server

How can this be reproduced?

Reproduction Steps

ProSys OPC UA Simulation Server

Install ProSys OPC UA Simulation Server
Under Objects tab select Simulation::FolderType and figure out NodeId for Counter Simulator. In this case I have NodeId set to n=3;i=1001
Figure out the Connection Endpoint by clicking on Status tab in the UI

Node-RED flow

Exported Flow to example (endpoint key value redacted, please adapt according to your endpoint via Step 3 above)

[
    {
        "id": "f6f2187d.f17ca8",
        "type": "tab",
        "label": "Flow 1",
        "disabled": false,
        "info": ""
    },
    {
        "id": "98c6bdc0acd263b7",
        "type": "OPCUA-IIoT-Inject",
        "z": "f6f2187d.f17ca8",
        "injectType": "inject",
        "payload": "",
        "payloadType": "date",
        "topic": "",
        "repeat": "",
        "crontab": "",
        "once": false,
        "startDelay": "",
        "name": "",
        "addressSpaceItems": [
            {
                "name": "Counter",
                "nodeId": "ns=3;i=1001",
                "datatypeName": ""
            }
        ],
        "x": 320,
        "y": 180,
        "wires": [
            [
                "b112f2780d41b09f"
            ]
        ]
    },
    {
        "id": "448cbdb0f47b0a3e",
        "type": "OPCUA-IIoT-Node",
        "z": "f6f2187d.f17ca8",
        "injectType": "read",
        "nodeId": "ns=3;i=1001",
        "datatype": "Int32",
        "value": "",
        "name": "",
        "topic": "",
        "showErrors": true,
        "x": 330,
        "y": 260,
        "wires": [
            [
                "9b7775845c130e50"
            ]
        ]
    },
    {
        "id": "b112f2780d41b09f",
        "type": "OPCUA-IIoT-Listener",
        "z": "f6f2187d.f17ca8",
        "connector": "045fe0765df79790",
        "action": "subscribe",
        "queueSize": 10,
        "name": "",
        "topic": "",
        "justValue": false,
        "useGroupItems": false,
        "showStatusActivities": true,
        "showErrors": true,
        "x": 560,
        "y": 180,
        "wires": [
            [
                "8578c768c1f816d6"
            ]
        ]
    },
    {
        "id": "9b7775845c130e50",
        "type": "OPCUA-IIoT-Read",
        "z": "f6f2187d.f17ca8",
        "attributeId": 0,
        "maxAge": 1,
        "depth": 1,
        "connector": "045fe0765df79790",
        "name": "",
        "justValue": true,
        "showStatusActivities": false,
        "showErrors": true,
        "parseStrings": false,
        "historyDays": 1,
        "x": 570,
        "y": 260,
        "wires": [
            [
                "ef5b5c27896f94a1"
            ]
        ]
    },
    {
        "id": "8578c768c1f816d6",
        "type": "debug",
        "z": "f6f2187d.f17ca8",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "true",
        "targetType": "full",
        "statusVal": "",
        "statusType": "auto",
        "x": 790,
        "y": 180,
        "wires": []
    },
    {
        "id": "ef5b5c27896f94a1",
        "type": "debug",
        "z": "f6f2187d.f17ca8",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": true,
        "tostatus": false,
        "complete": "payload.value[0].value",
        "targetType": "msg",
        "statusVal": "",
        "statusType": "auto",
        "x": 870,
        "y": 260,
        "wires": []
    },
    {
        "id": "ca99a87a46e8298e",
        "type": "inject",
        "z": "f6f2187d.f17ca8",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "",
        "payloadType": "date",
        "x": 160,
        "y": 260,
        "wires": [
            [
                "448cbdb0f47b0a3e"
            ]
        ]
    },
    {
        "id": "045fe0765df79790",
        "type": "OPCUA-IIoT-Connector",
        "discoveryUrl": "",
        "endpoint": "opc.tcp://<Redacted_HOSTNAME>:53530/OPCUA/SimulationServer",
        "keepSessionAlive": true,
        "loginEnabled": false,
        "securityPolicy": "None",
        "securityMode": "None",
        "name": "Prosys Simulation Server",
        "showErrors": false,
        "individualCerts": false,
        "publicCertificateFile": "",
        "privateKeyFile": "",
        "defaultSecureTokenLifetime": "",
        "endpointMustExist": false,
        "autoSelectRightEndpoint": false,
        "strategyMaxRetry": "",
        "strategyInitialDelay": "",
        "strategyMaxDelay": "",
        "strategyRandomisationFactor": "",
        "requestedSessionTimeout": "",
        "connectionStartDelay": "",
        "reconnectDelay": "",
        "maxBadSessionRequests": "10"
    }
]

What did you expect to happen?

Expectations

What Works

Based on the flow the Read Node works perfectly well when trying to read the value of the Counter using n=3;i=1001

What does NOT Work

Upon clicking the timestamp node connected to Listener node (which is configured to n=3;i=1001) I get the following error in the debug console of Node-RED

Error: encodeObject Error: [Error] Value: {
  payload: {
    addressSpaceItems: [ [Object] ],
    nodetype: 'listen',
    injectType: 'subscribe',
    value: DataValue {
      statusCode: [ConstantStatusCode],
      sourceTimestamp: [Date],
      sourcePicoseconds: 0,
      serverTimestamp: [Date],
      serverPicoseconds: 0,
      value: [Variant]
    },
    monitoredItem: ClientMonitoredItemImpl {
      _events: [Object: null prototype],
      _eventsCount: 4,
      _maxListeners: undefined,
      statusCode: [ConstantStatusCode],
      subscription: [ClientSubscriptionImpl],
      itemToMonitor: [ReadValueId],
      monitoringParameters: [MonitoringParameters],
      monitoringMode: 2,
      timestampsToReturn: 2,
      result: [MonitoredItemCreateResult],
      monitoredItemId: 3,
      filterResult: undefined,
      [Symbol(kCapture)]: false
    }
  },
  topic: '',
  justValue: false,
  _msgid: 'ea1dd51655a1cc41'
}

This with the following Listener node configuration:

Upon selecting Send Just Values and restarting the modified flow, I am able to listen however I do not see any value returned

{"payload":{"addressSpaceItems":[{"name":"","nodeId":"ns=3;i=1001","datatypeName":""}],"nodetype":"listen","injectType":"subscribe"},"topic":"","justValue":true,"_msgid":"4434a72fc40d5b99"}

Is this expected behaviour for the Listener node?

Other Information

No response

biancode commented 2 years ago

see #160 - e2e tests of the Listener node had to be fixed soon and then we can check to fix your issue

shantanoo-desai commented 2 years ago

@biancode thanks for reaching out. Let me know which part of the source code I can investigate to help out.

biancode commented 2 years ago

Hi @shantanoo-desai the e2e tests and examples are the first points what we try to get working well again. The Server or Listener code could be a good point to investigate at the moment via the e2e tests and examples

see some loom instruction here

github-actions[bot] commented 2 years ago

This issue is stale because it has been open 60 days with no activity. It will be closed in 15 days, but can be saved by removing the stale label or commenting.

BiancoRoyal / node-red-contrib-iiot-opcua