Mastering Forge #4: Harmonizing Data

Welcome to the fourth tutorial on our series Mastering Forge.

As a quick recap, in our previous article, Mastering Forge #3, we provided a step-by-step guide on configuring the security settings of Forge’s OPC UA server and establishing a secure connection with an OPC UA client.

In this article, we will explore Forge’s capabilities in data harmonization, focusing on OPC UA information models and data mapping.

To follow along with this tutorial, you need to have a valid NodeSet file. For example, you can download one from the OPC Foundation’s online references. In this example, we are going to use the CommercialKitchenEuipment Node Set.

Also, if you prefer your tutorials in video format instead, you can watch our video about mapping your data with Forge on YouTube.

During this tutorial, we’ll be using the following products:

Import NodeSet

1. Navigate to OPC UA Server > Namespaces and press Import NodeSet.

Screenshot of Forge’s OPC UA Server tab with arrows pointing to “Namespaces” subtab and “Import NodeSet” button.

3. Select the NodeSet2 file, which is .xml type.
4. Select Types and instances and press Load file.

A screenshot of Forge’s “Import NodeSet” view with arrows pointing where to click.

Create Instances

1. Navigate to Forge’s Address Space (OPC UA Server > Address Space).

2. Right-click on the Objects and select + Add Node.

Screenshot of Forge’s OPC UA Server tab with an arrow pointing to “Add Node”.

3. Create a FolderType instance by selecting FolderType from the Model Type dropdown list. Give a name for the instance. Press Save to create the instance.

A screenshot of “New Node” with arrows pointing to “Model type” under Type Definition and “Name” under Node Identity.

4. Select the created Folder from the Address Space and click + Add Node.

5. Select the Model type URI filter to be to filter the Model Type list.

6. Select CoffeeMachineDeviceType for the Model type. Give a name for the instance and press Save to create the instance.

Screenshot of “New Node” with arrows pointing to the settings to select.

7. A full model will be created, and it can be browsed in Forge’s Address Space.

Screenshot of Forge’s Address Space.

Map Data

1. Select node MyKitchen/MyCoffee/Parameters/BoilerPressureSteam and press Mapping.

Screenshot of Address Space with arrows pointing to node “BoilerPressureSteam” and “Mapping” buttons.

2. Select the Value attribute and Map to Node.

Screenshot of “Mappings” with an arrow pointing to “Map to Node”.

3. This will open a view with two columns. The left side shows the node which will have the information from the node that will be selected on the right side. This way, the BoilerPressureSteam variable will receive values from the node on the right side.

4. Browse to the Simulation Server address space and select a node with the same DataType.

Forge’s Address Space with arrows pointing to node “Sinusoid” and button “Map and Close”.

5. Open Prosys OPC UA Browser and verify that you can see the mapped variable value.

Screenshot of Browser’s Data View with an arrow pointing to the changing value.

6. Optionally, you can set static values for variables and enrich the model even further. 

Screenshot of Forge's mapping feature.

7. From Advanced Mappings, you can also define an offset or scale the mapped value. You can even select one element from an array or one bit from a byte. 

Screenshot of Forge's Advanced Mappings.

Next Steps

This wraps up the fourth article of Mastering Forge. Now that the core features are covered, we can move on to other features that Forge offers. Here’s a recap of what we did in this article:

  1. We imported NodeSets to Forge’s namespace and created instances to the address space from them.
  2. Mapped data from one variable to another.
  3. Verified that the data was mapped correctly using Prosys OPC UA Browser.

Get ready for our next exciting topic! In the upcoming article, we will delve into how to publish data with UNS structure to an MQTT broker running on Amazon Web Services (AWS) using Forge.

If you want to learn more about Forge and its capabilities, you can request a detailed introduction by emailing or using our contact form. We’d be delighted to provide tailored information about Forge that aligns with your interests and requirements.

A headshot of Iivo Yrjölä

Iivo Yrjölä

Customer Integration & Support, Prosys OPC


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