Since no one has this unit and wants to reply, go here.
[Link: files.remotecentral.com]Download the Excel spreadsheet and open the 'Codes' tab.
On the Codes tab, you will find 512 rows containing all Function Codes 0-255 for devices 7A and 7E (256 codes per device).
It will require copy/paste into a MyDatabase component. You can reference the first sheet in the workbook to see which codes are expected to be what and for the ones that are well-known, you can exclude trying those.
Through trial and error, you should be able to find the discrete inputs you need.
Lyndel