Hi,

I was creating a Python interface for DI-2008 and had some edge cases that confused me.

When I create duplicate channels on the interface, meaning 2 'slist' commands with the same 16-bit configuration, I get 'stop 01\r\x00stop 01\r\x00' as a response for sending the command 'start'. 

First of all, the documentation does not say that the 'start' command can return a error message, and what kind of message it is. Is this the error message for any other wrong command or just for wrong scan list information.  Why is a string of two 'stop 01' instead of just one?