How To Articles > How to Transfer Data from Sparkplug B to OPC

How to Transfer Data from Sparkplug B to OPC

Sparkplug B to OPC


Open Automation Software can transfer data from Sparkplug B Edge of Network Node devices to OPC Servers, locally or over a network. This tutorial walks you through downloading and installing OAS, configuring a Sparkplug B driver, configuring Sparkplug B and OPC tags, and implementing Data Route. OAS is also an OPC server to provide Sparkplug B data to OPC clients; see Getting Started with OPC Clients for access to all OAS data.

Step 1. Download and Install the Open Automation Software and Start the OAS Service

If you have not already done so, you will need to download and install the OAS platform.  Fully functional trial versions of the software are available for Windows, Windows IoT Core, Linux, Raspberry Pi and Docker on our downloads page.

On Windows run the downloaded Setup.exe file to install one or more of the Open Automation Software features. Select the default Typical installation if you are not sure what features to use or the Custom installation if you want to save disk space on the target system.  When prompted agree to the End User License Agreement to continue the installation.

For more detailed instructions and video tutorials, visit the installation guide for your system:
Windows Installation | Linux Installation | Raspberry Pi Installation | Dockers Installation

The OAS Service Control application will appear when the installation finishes on Windows.  Use this application to start the 3 Services. Run the Configure OAS application on Windows and select Configure-Tags; if the first time running, the AdminCreate utility will run to create an Administrator login as shown in Step 1 of Getting Started – Security.


Step 2. Set Up Sparkplug B Host App to Access EoN Node Data.

Select Configure-Drivers.

Configure Drivers

Enter a meaningful Driver Interface Name that you will refer to this connection and define the properties.

Set the driver to Sparkplug B.

Enter the Host property to the IP Address of the of the host broker or just use localhost for a local broker. 

Set the Port property of the host broker to connect to.  The default port is 1883 or 8883 for SSL.

Note: The OAS MQTT Broker can be used to host data locally.  To use another broker on the default ports on the same computer change the OAS MQTT Broker Port under Configure-Options-MQTT Broker.

Enter the User Name and Password if required.

Set the MQTT Protocol Version to V311 or V500.

Set the Client ID to a unique value, each driver interface must have a specific value different than all other clients connecting to the host.

Set the Mode to Host App for OAS to control the online state of each Edge of Node defined to the shared Host Application ID. Or set to Client App to access EoN Node data without controlling their state.

Set the Host ID to the specific value that the Edge of Nodes will be using as the Host Application ID.

Set the Sparkplug B Version to 2.2 or 3.0.

To automatically add tags for each Metric from the matching Group, Edge of Nodes, and Devices enable the property Add Client Tags Automatically.

When enabled optionally set the Filter Groups, Edge Nodes, and Devices that tags should be added from for each of their Metrics.  Leave the Filter fields blank to include all Edge of Nodes publishing data to the broker.

Select the Add Driver button in the left part of the form to add the Driver Interface as an available selection when defining Tags in the next step.

Add Driver

You are now ready to add tags for specific Sparkplug B EoN Node Metric values.

Note: If the Driver Interface property Add Client Tags Automatically was enabled tags will be created for you, you can skip this step to add tags manually.

Select Configure-Tags.

Menu Configure Tags

Note: You can add organizational Groups as many levels deep as you prefer and add tags to groups.  To do this first add a Group to Tags Group at the root level, then right click on the Group in the right window to add additional Groups or Tags.

Select Add Tag.

Add Tag

Change the Data Source Tag property to Sparkplug B.

Select the correct Driver Interface from the Driver Interface pull down list.

Specify the Client Group IDClient Edge Node IDClient Device ID, and Client Metric Name for the Edge of Node Metric value to read and write.

Select the Data Type of the Tag to match the data type of the Metric.

Select Apply Changes and the current value for the Metric should appear with Good Quality.

Select the Save button from the toolbar to save your configuration.

Save Button

You can view the Getting Started with Sparkplug B Video to familiarize yourself with the above steps to setup OAS as a Sparkplug B Edge of Network Node and a Host Application

  • 00:00 – Introduction
  • 01:10 – Download OAS
  • 01:46 – Quick Start
  • 02:08 – Edge of Network Node
  • 05:52 – EoN Tags
  • 07:04 – Host Application
  • 09:20 – SpB Client Tags
  • 10:22 – Programatic Interface
  • 10:59 – CSV Export / Import
  • 12:27 – Multiple Metric Tags
  • 13:46 – Modbus
  • 16:10 – DCMD Metric Write
  • 17:00 – Data Route
  • 17:58 – Networking
  • 18:17 – Save Configuration
  • 18:56 – OAS Platform

Step 3. Configure OPC Server Tags

OAS provides multiple ways to add and define tags:

To add a Tag manually:

  1. In the OAS Configure Application, select Configure >> Tags from the top menu.


  2. Select localhost or the remote service you wish to modify with the Select button to the right of the Network Node list.


  3. Click on the Add Tag button located at the top of the Tag browser on the left portion of the screen.


  4. A dialog box will appear. Enter a name for your new tag and click ok.

  5. A configuration screen will appear for your new tag. Select OPC in the Data Source dropdown box.


  6. Use the Browse button to the right of the OPC Item to browse OPC Servers for the desired OPC Item.


  7. Select Local, the desired OPC Server, branch within the OPC Server, and OPC Item and click OK.


  8. Specify the desired OPC Update Rate for the Tag.

  9. Click Apply Changes at the bottom right of the window.

To add Tags with One Click OPC:

  1. In the OAS Configure Application, select Configure >> Tags from the top menu.


  2. Select localhost or the remote service you wish to modify with the Select button to the right of the Network Node list.


  3. To begin the One Click OPC process select the Group you would like to import to in the Tag configuration. If you want to import to the Root Level, select the Tags Group at the top of the tree. Then select the One Click Import button on the top menu bar.


  4. Click on the Import OPC DA 2.XX or 3.0 Items Button in the pop up window.


  5. Use the One Click OPC Wizard to browse for a branch as a starting position within an OPC Server or just select the OPC Server name itself to add all items from the selected OPC Server. For the best networking design select OPC Servers from Local even if you are configuring a remote OAS Service.


  6. Select to enable the options to Get Data Type from OPC Server and optionally the Descriptions. Additionally if you want to specify to Trend all of the points select Trend Points.

  7. Click Add Tags and it will automatically add all of the OPC Items from the OPC Server Branch you have selected and all of the sub Branches beneath it.

  8. Select the Save button on the toolbar at the top.

For more detailed instructions on Configuring OPC Server Tags, visit our Getting Started OPC tutorial or the One Click OPC tutorial or watch the video tutorial below:


Step 4. Configure the Target Tab of the Source Tags

  1. Select one of your source tags.

  2. Select it’s Target tab.


  3. Enable Write to Target

  4. Select the Target Type (Tag, OPC, Azure IoT, Azure IoT Edge, or MQTT) from the dropdown.

  5. Select the destination for the value to be sent. If Tag is selected then select Browse and select the desired tag from the localhost system or optionally a remote system for transfer over a network.



    Local: TagName.Value

    Remote: \\192.168.0.1\TagName.Value

    If OPC Item is selected select browse and select the OPC Server and Item



    If Azure IoT is selected then select the Driver Interface.



    If MQTT is selected then select the Driver Interface and Topic.




  6. Enter the desired float value Deadband field. Enter 0 for no deadband.

  7. If you want to specify a desired update frequency for the target check Write Continuously and enter the desired frequency. If Write Contentiously is unchecked the the target will be updated every time the source tag changes.

  8. Click the Apply Changes button to save your changes.

  9. Repeat this step for each tag that you want to transfer data from. This can also be done in bulk with CSV Import/Export or programatically.

For more detailed instructions on Configuring Data Route functionality, visit our Getting Started – Data Route tutorial or watch the videos below:

Multiple Tag Transfer

Tag to Tag Transfer

IoT Publish