Nice new website TW!
I love the layout! Very sleek...I like the random products bar...very eye-catching, clean and functional!
To the OP: If your PV300 micro is the only device on the DH485 network, it can be converted to a DF1 version, which will eliminate compatibility issues with wondoze SP3. You must choose a firmware and use a special utility to install it in the PV300 Micro, effectively changing it to the other part number PV300. If you are interested in the details, post again and I can provide the full procedure when I am back at work.
Or you can Download it to the Dumpster when it dies again, and spend less money on a Kadet (red lion controls) with the nearest larger panel cut-out. It will do DH485 and DF1 with a simple program change and update, and has two serial ports so that you can stay connected to both devices without having to swap cables.