To connect a barcode scanner to the SET software, open the "Data services" panel.
Double click on the title bar or click on the window icon to change the view of the panel to full screen.
Now click on "Serial interface (Barcode Scanner only) to open the settings.
Select the correct COM port from the drop down menu. In case multiple COM ports show up, disconnect the scanner to identify which one is missing - that one is the barcode scanner.
Change the baudrate to 9600, the other settings can stay in default mode.
Once all settings are done, click on "Open port".
Go to "QRCode Reader" and open "QRCode Reader from Barcode Scanner".
Keep this window always open while using the barcode scanner. Select the desired default action from the drop down menu.
Whenever a QR Code is scanned, the system will run the selected default option. The different application options are discussed in the corresponding articles.
If you are facing any issues with the barcode scanner eventhough all settings are correct, the most succesfull way is to close and open the port again. If that doesn't help disconnect and reconnect the USB port or use a different USB port. Open the COM port afterwards again in the software.