Using the PIL-Box with the Portable Plus

[Michael Fehlhammer]

(06-05-2014 08:19 PM)J-F Garnier Wrote:  Good news for owners of the HP Portable Plus: the PIL-Box and the ILPer software are working great with this machine, and it is possible to access a disc image file on PC using the drive C: on Portable side.
This is a convenient way to exchange programs between Portable Plus users.

Really good news, but I am confused; how can that work?
Jean-Francois, can you please explain the communication in more detail?

Background of my confusion:
ILPer implements the Filbert-protocol which is used by HP 41C, 71b and 75C to address the cassette drive and the 9114 floppy drive. Whereas the PP uses the SS80 protocol to access the floppy drive ( 9114 understands both protocols ). So ILPer should not work with the PP, or is there a SS80 - version of ILPer?