Hi Charlie,
I don't have an IC-7200 but can offer some help. The Address for the 7200 is 76h, as for baud rate, any should work as long as both LOGic and the Rig are set the same, maybe try 19,200 for starters. In LOGic try the #40 Driver as its a basic driver and should get you going. There are other LOGic drivers that support features like Split, Filter control and Dual Watch that may work, look at #47, #51, and maybe #56. Start with #40, if it doesn't work try a different stop bit, 1 or 2. Let us know if it works or not.
Good Luck !!
73 de Brad, N8GLS