The only functions you would need for the VS pump on a daily basis is on/off and perhaps change of speeds although many people simply operate their VS pumps 24/7 and never change speeds. However, if you have solar or perhaps a heater, you might want to have the ability to change speeds dynamically when heat is called for but you probably don't have that now anyway. The Intellicomm add-on can be used to interface with dry contact relays in the ProLogic board but the combined costs might make the cheaper Pentair controllers more cost effective.
It adds WiFi connectivity, local LAN only, not internet connectivity. In other words, you can control the pool when at home but nowhere else. The app simply emulates the key presses from the local display unit in a Windows or Android application.
I had a wireless remote fail and instead of replacing it for $800+, I bought the WiFI/RS485 unit for less than $25 and wrote the app. It is more convenient than the wireless remote too although other family members/visitors will need to install and configure the app to control the pool.
It looks like this:
View attachment 544948