Randomly found the question, but I work as a Automation Engineer / C&I / Integrator

What you are looking for is Ignition SCADA. Specifically the perspective module. It is the best in the market in my opinion, has unlimited tags, great training videos and runs on almost anything. It also comes with the drivers needed to connect to most of the popular brands’ PLCs.

I have seen this implemented at wastewater and water treatment plants

However a SCADA will be pricey, if it’s a small plant rather consider an HMI, there are options available from Ignition’s side, but it’ll depend on how much it is worth to you