node-red-contrib-opcua 0.2.238

A Node-RED node to communicate via OPC UA based on node-opcua library.

npm install node-red-contrib-opcua

NPM download NPM version

Node-RED OPC UA

node-red-contrib-opcua

opcuanodeLogo64

A Node-RED nodes to communicate or serve via OPC UA.

based on node-opcua

nodeopcua64

Install

Run command on Node-RED installation directory.

npm install node-red-contrib-opcua

or run command for global installation.

npm install -g node-red-contrib-opcua

Usage

Use OpcUa-Item to define variables. Use OpcUa-Client to read / write / subscribe / browse OPC UA server.

See some flows under Examples. Updated server sub-flow example OPCUA-TEST-NODES.json look commands: addFolder, AddVariable, setFolder.

Here you got some ready to use examples. You can use the Import in Node-RED in the right upper corner menu.

node-red-opcua-flow

Examples are available for Schneider IGSS and Prosys Simulation Server as Node-RED flow. Search for OPC UA on: http://flows.nodered.org/

node-red-opcua-flow-Prosys

New method node example

Events example

Message parameters

Input message

Property Function/Value Notes
payload set interval for subscription or monitorItem
interval Subscription interval
queueSize Subscription queue size
deadbandType "a" abs. or "p" percent Action monitor
deadbandValue integer for deadband Action monitor
topic NodeId and DataType in format ns=3;s=Counter;datatype=Int32
action subscribe nodeId / variable
unsubscribe nodeId / variable
deletesubscription subscription
browse nodeId / folder
info nodeId
read nodeId
write nodeId & value
monitor deadbandtype abs/pro
events nodeId
readmultiple [nodeId + datatype]
writemultiple [nodeId + datatype + value]

readmultiple to readmultiple items writemultiple to write multiple items clearitems to empty multiple items (readmultiple / writemultiple)

NOTE: With datatype=xxxArray msg.payload.range = "2:4" can used as indexRange to read/write partial array

Output message

Property Function/Value Notes
payload dataValue.value.value
statusCode OPC UA StatusCode
sourceTimestamp Source timestamp
serverTimestamp ServerĀ“s timestamp

Release history (only couple of older releases):

v0.2.223

Fixed: Namespace index used with variables (set value).
Enhancements: Initial value can be set to server variable, server returns nodeId as variable created. Added support for StringArray.

v0.2.117

Enhancement: Added users to server. Users.json contains username, password and role for each user.

v0.2.116

Enhancement: server allow anonymous, added verbose to show trusted/rejected folders.

v0.2.115

Enhancement: server node security settings; mode and policy

v0.2.114

Fix: added to client certificate manager

v0.2.113

Enhancement: server commands: registerNamespace and getNamespaceIndex, user can addVariables with registered namespaces like ns=5.
Enhancement: msg.topic = readmultiple AND msg.payload = ALL then msg.payload = values

v0.2.112

Added DateTime to server.

v0.2.111

Fixed DateTime conversion (write).

v0.2.110

Added 2D and 3D array support. Examples:
ns=1;s=Float2D;datatype=FloatArray[5,5]
ns=1;s=Float3D;datatype=FloatArray[5,5,5]
NOTE: Write range uses msg.range
New feature msg.payload.range can be used to read part of Array
New feature msg.range can be used to write part of Array
Updated example OPCUA-TEST-NODES.json

v0.2.109

Added array range examples (examples/OPCUA-TEST-NODES.json).
Send only if payload contains something.
Added msg.payload.range usage
New feature msg.payload.range can be used to read/write part of Array
Fix: FQDN -> hostname in makeAplicationUri
EventId and statustext as clear string
EventId as hex string

v0.2.108 and older

Fixed support for server Array variables
Browse will create topic and datatype thus output can be connected. Next node can progress output msg.
Refactored browse action fast and simple
Merged event payload fix. Merge pull request #265 from list3f/master
Put OPC UA event data in msg.payload

# Advanced examples - needed from users (add links to examples folder)

Authors

Testing

karma start opcua.conf.js --log-level debug --single-run

TBD List

Nodes Function Done
All
Project structure :white_check_mark:
Async calls :waxing_crescent_moon:
UnitTesting :new_moon:
Documentation :first_quarter_moon:
Item :white_check_mark:
Browser
Browse :white_check_mark:
Simple UI interface :first_quarter_moon:
Client
Read :white_check_mark:
Read Multiple :white_check_mark:
Write :white_check_mark:
Write Multiple :white_check_mark:
Subscribe :white_check_mark:
Unsubscribe :white_check_mark:
DeleteSubscription :white_check_mark:
Info :white_check_mark:
Browse :white_check_mark:
AE :new_moon:
reconnect on error :waxing_crescent_moon:
Server
Commands
Restart :white_check_mark:
Add Folder :white_check_mark:
Set Folder :white_check_mark:
Add Variable :white_check_mark:
Add Object :new_moon:
Add Method :new_moon:
Add Equipment :first_quarter_moon:
Add PhysicalAssets :first_quarter_moon:
Delete by NodeId :white_check_mark:
Examples
Methods
Structures
Variables
Objects
AE
Alarm and Events
Subscribe :white_check_mark:

EMOJI CHEAT SHEET

Node Info

Version: 0.2.238
Updated 2 weeks, 1 day ago
License: Apache-2.0
Rating: 5.0 1

Downloads

973 in the last week

Nodes

  • OpcUa-Item
  • OpcUa-Client
  • OpcUa-Browser
  • OpcUa-Server
  • OpcUa-Endpoint
  • OpcUa-Event
  • OpcUa-Method

Keywords

  • node-red
  • OPC UA
  • opc-ua
  • unified automation
  • opc foundation
  • node-opcua

Maintainers