Plugins 〉OPC UA (Unified Architecture)


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The OPC UA (Unified Architecture) plugin has been deprecated and is no longer maintained.

Data Source

OPC UA (Unified Architecture)

  • Overview
  • Installation
  • Change log
  • Related content

OPC UA Datasource plugin for Grafana


[!CAUTION] This plugin is now deprecated. This deprecation means that this plugin won't receive any feature updates or bug fixes except critical security fixes. After 6 months (End of June 2024), the plugin will reach EOL and there won't be any fixes afterwards. Existing installations of the plugin will continue to work. Reach out to Grafana Community Forum if you need any further assistance on this plugin.


Utilizing the datasource plugin framework, this projects allows you to access data from OPC UA servers directly from Grafana.

full dashboard

What works

  • Browsing and adding multiple servers
  • Authenticated connection with certificate or no security
  • Graphical query editor
  • Data Access (DA)
  • Historical Access (HA / HDA)
  • Alarms & Conditions (AC / AE)

What needs to be implemented

  • OPCUA DA Subscriptions: These are the ones where you will not need to hit the refresh button. If you have subscribed to a data point at 500ms, you will get an unsolicited update every 500ms.
  • Password authentication
  • Two-way communication with the OPC UA server (currently read only)

Description and Architecture

This plugin uses GRPC and a C# backend to communicate with Grafana directly. See pkg/dotnet directory for the backend component


  • yarn install to install dependencies
  • yarn build | yarn dev to build the plugin
  • make build to build the backend component

Restart Grafana and you should have the datasource installed.


Contributions that addresses the needs above or other feature you'd like to see are most welcome. Fork the project and commit a PR with your requests.

Prediktor is a proud contributor Open Software like this project and open standards like OPC UA fits perfectly with our quest to give our clients the freedom to operate. To know more about our offerings and get in touch, check out


Q: Can it read OPC Classic DA/HDA/AE?

A: Yes, provided use use the OPC Foundations COMIOP wrapper, which you can find here. You will need to configure IOP to wrap your OPC COM server. Tested against Matrikon OPC Desktop Historian and Matrikon OPC Simulation Server.

Installing OPC UA (Unified Architecture) on Grafana Cloud:

For more information, visit the docs on plugin installation.

Change Log

[1.3.8] - 2024-01-10

  • Plugin officially marked as deprecated. This deprecation means that this plugin won’t receive any feature updates or bug fixes except critical security fixes. After 6 months (End of June 2024), the plugin will reach EOL and there won’t be any fixes afterwards.

[1.3.7] - 2024-01-03

  • 1.3.6 was not published properly, so this is a re-release of 1.3.6

[1.3.6] - 2023-09-29

  • Updated to grafana 10
  • Various changes to support updated coding standards
  • Fixed issue #82 - Unable to fill in url-field in datasource

[1.2.0-beta.1] - 2022-05-06

  • Added the ability to select timestamps from either the OPC server, or OPC client/device/source

[1.1.6] - 2022-04-05

  • Removed all references to Dashboard Mapping (dashboard.db)
  • Exchanged BinaryFormatter for BinaryWriter due to security issues with BinaryFormatter

[1.1.5] - 2022-01-24

  • Fixed issue with dynamic files in the MANIFEST.txt
  • Removed log4net; all logging goes through grafana logs
  • The dashboard mapping database, dashboardmapping.db, is moved out of the plugins directory. If the file already exists in the old location, it will be moved

[1.1.4] - 2021-11-14

  • Plugin published on

[1.1.2] - 2021-06-10

  • Mostly fixes needed for Successfully registering in the Grafana Plugin Registry

[1.0.1] - 2021-05-6

  • Exchanged the UA Client to Prediktor.UA.Client (
  • Added Alarms and Events; historic and subscription
  • Config UI and persistence have been changed, not backwards compatible
  • Added support for dashboard mapping from instance/type. This is to support complementary Grafana panel plugins at

[1.0.0] - 2020-06-15

  • Initial official release that will be submitted to
  • OPC DA/HDA reads working
  • Certificate and "no security" authentication working