Schneider Unity & TSX57304

Good Morning All,
Swimming around in the "deep end" again (formerly know as the frying pan). I have a copy of Unity Pro M version 6.0 and I need to communicate to a Schneider PLC TSX57304. I can find the PLC in the Help but I cannot connect to it when I try to I get the following error message.
"The required CPU reference <TSX P507 304M 02.00>is missing"

Can anyone she dsome light as to what I have to do to be able to download a program to this PLC ?

Turns out the "M" in Unity M was a big hint apperently Unity Software has various versions available depending on the "size" of plc's that you want to work with the "M" version goes up to series 2 plc's. I'm guessing that TSX57 304 requires Unity L or XL

You're correct, to program the Premium series (the "P" in P57!), you need Unity Pro L.

version 6.0 is the current version I believe.

It's pretty pricy, I think it was around the $5k mark when we got a copy last year.

What are you building? the Premium series is a pretty grunty beast.