TODO.md

OPC UA IIoT for Node-RED

Known Issues

• Result Filter does not filter correctly in every case (Will be fixed in v5.x)
• Read after browse in browse example does not work
  • No output and no error
• Browse-Listener and grouped-listener example top browse/listen will throw following error

Error: encodeObject Error: [Error] Value: {
  payload: 'Monitored Item Error',
  monitoredItem: ClientMonitoredItemImpl {
    _events: {
      initialized: [Function (anonymous)],
      changed: [Function (anonymous)],
      err: [Function (anonymous)],
      terminated: [Function (anonymous)]
    },
    _eventsCount: 4,
    _maxListeners: undefined,
    statusCode: ConstantStatusCode {
      _value: 2150957056,
      _description: 'The attribute is not supported for the specified Node.',
      _name: 'BadAttributeIdInvalid'
    },
    subscription: ClientSubscriptionImpl {
      _events: [Object],
      _eventsCount: 4,
      _maxListeners: undefined,
      monitoredItemGroups: [],
      timeoutHint: 14000,
      _nextClientHandle: 26,
      publishEngine: [ClientSidePublishEngine],
      lastSequenceNumber: 10,
      publishingInterval: 200,
      lifetimeCount: 18000,
      maxKeepAliveCount: 60,
      maxNotificationsPerPublish: 100,
      publishingEnabled: true,
      priority: 10,

Removing the catch node will bring the following error messages

"{"name":"Error","message":"ns=0;i=2253: BadAttributeIdInvalid (0x80350000)"}"

Maybe that happens because the browser browses the root object recursively and returns also nodes of the server that aren't allowed to be listened

• Event Listener monitoring the basic opc ua events will always return an empty array of values
  • Discovered following error: Expected data is unavailable for the requested time range due to an un-mounted volume, an off-line archive or tape, or similar reason for temporary unavailability. (Will be fixed in v5.x)

Features

ASO and Servers

• adding variables
• adding folders/objects
• adding complex structures
• adding arrays
• adding methods

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Worked before

Listener

• Events cannot be monitored (error node-opcua maxAge)