Hi Andrew,
as far as I know, you can't access the values of anything else than the stuff you have mentioned (clock, markers, etc. ...) using the DLL.
In your case you must link the output of A01 to an MD and let your program read the value out from there.
Make sure to chose an MD that is not being used by other parts of your program:
For example, if you are using M1 somewhere else, MD1 should not be used, because M1 is the first bit of MD1.
There is a table with the memory layout somwhere in the documentation. Hard to find thou...
Good luck!
Regards,
Peter