Visual studio 2017 is used as environment for the development for both HMI/scada and the Aduino sketches. You can download the software for free.
Download link: https://www.visualstudio.com/downloads/
It is not necassery to install the complete package. For the AFSM just VBA, C/C++ and the software for form applicaties is enough.
Follow the download instructions on the microsoft site.