Automated Meter System (AMS) Libraries for Gas Calculation

Hello Stefan,

How can we access Automated Meter System (AMS) Libraries in ABB 800xA. As it is given that these are supported in AC800M/C controllers as per below link

https://library.e.abb.com/public/ebd7...

I have PM865 controllers and ABB 800xA v5.1 software. If these are not standard libraries. Do we have to buy them or any other info you can give regarding this. Actually our customer wants to do AGA 3 Gas Orifice calculations with ABB 800xA. Is that possible in our system?