Preparation :

Once connected in the OPC IoT interface, for a typical OPC DA extraction, you need to use :

• One timestamp node,
• One OPC DA node,
• One debug node,
• One b3csv node.

Optional : you can use mapping node if you want rename OPC tags.

Timestamp node :

To access the configuration part of each node, you need to double-click on this node.
You will see this screen :

For this part, you need to change Repeat : here, it set a one-minute extraction (standard Braincube for process data).
Option Inject one after X second, then permits to execute each time you save your modifications (by clicking one Deploy button).

DA node :

Open the configuration part of this connector (double-click on the node) :

First, you need to create a new OPC DA connection (new endpoint) by clicking on the little pencil at the right of Add new opc endpoint.
You will see this tab :

On the right of your screen, you have the node help of the concerning node and part, OPC DA connection in this case :

When this Connection tab is filled, switch to the Variable tab.

Here, you can add a list of variables (txt file with one variable per line) or if your OPC DA server does not have lot of variables, you can use Get available tags to see what data you can extract.
You can add just one variable by clicking on Add button below Variable list to extract

CSV node :

Open the configuration part of this connector (double-click on the node) :

You just need to fill full path with the name of the file in Filename place.
Then, everything is set to have a one-minute extraction.

The one-min extraction is set, each minute you will see in the directory you choose the .csv file with the correct data.

Every time you modify something, do not forget to click the Deploy button at top right of the screen to save the modification.