Nothing special. The PV will have to support DH+ comm.
What is the cat. no. of your PV?
Proper termination resistors on both ends of network
At 56kb = 150 ohms
At 230kb = 82 ohms
At least 10 ft of cable ( use AB spec. cable)
I mean today is more common make first HMI connection with new plc generations and HMI devices. DH+ was very popular in the second middle of the 80's and in the 90's with PLC 5, now I have a 4 weeks delivery time for a PV550 with DH+ port.