Hi Subs,
I'm not an Raspberry PI expert but you can use Proview as scada station to display yours I/O.
If you want begin to learn Proview (basic features), I guest you to visit the youtube channel dedicated for the beginners:
www.youtube.com/channel/UCIKkyi-IajL5NfxvSY59hbw
My idea...
If your datalogger is Modbus compliance, you can install Proview on RPI (as process station connected thru Modbus tcp/ip with the datalogger)
Use a 2nd Proview station (operator station) connected with RPI to display I/O.
/Ben