I downloaded VTScada to try out with a Delta PLC, Delta is what we primarily use. According to a PDF on Delta's website there should be the ability to add a Delta Driver in the Tag Browser. The Delta driver isn't listed as one I can add. Here are the instructions I found on Delta's website. Anyone figured this out?
https://filecenter.deltaww.com/Products/download/06/060711/Manual/DELTA_IA_OMS_VTScada%20Delta%20Driver%20Connect%20Quick%20Start_EN_20210625.pdf

Thanks for sharing this with us. You may have to wait until VTScada 12.1 is released to find this built into the product. The good news is that 12.1 will release very soon. When it is available, just download the software again ( You can use: https://www.vtscada.com/download-vtscada/ ) and install it over your existing installation. Any work you have done to do will be automatically upgraded to 12.1, and any new drivers and features will be available in your existing applications.