I have received a set of DLL files from a vendor for communication with a device. How can I use it?

Drag and drop one of the Automation Script function blocks (VB or C# .Net) function blocks to a module.
Double click on the function block to see the Editing dialog.
Select the reference tab at the top of the dialog box.
You can add a reference to the DLLs that you have received.
While the DLL files can be saved anywhere on the hard drive, we strongly recommend that you save the DLL files under
“C:\Sinolta projects\<>projectname>\\Cofigruation\Online\Autoamtion\DLL” folder.
Saving the DLL files in the above folder will include them in the Archived file, so you will always have a copy of the DLL with your project when arching and restoring.