Welcome. Sorry for the lack of help, but I googled around for a while. The only link that was even partially relevant was (http://mastermidi.weebly.com/
). You might want to contact them and see if they can help you out with either some advice or a PDF document for your setup.
I personally have never heard of a Master Saturn MIDI. They might be working under another name. I hope someone can help you more than I have.