Hi,
[quote user="Sign Bit"]Does "4" include both Commands (AP -> NP) and Events (NP -> AP)?[/quote]
No I think it's 4 commands as in one way.
[quote user="Sign Bit"]After I send a first Command, may I send a second one, or do I need to wait for the "Complete" Event in response to the fist one?[/quote]
You should wait for the corresponding event (just to be sure).
Best Regards