6K Software - Reading Analogue Inputs with the COM6SRVR

Does ANIEN affect which Analog Inputs are sampled through the Com6srvr Fast Status?

No.

The Com6srvr Fast Status reflects the state of the first two analog inputs on the Serial I/O. Setting 1ANIEN.1=0 (effectively disabling the analog input) merely forces the Com6srvr to read zero. Similarly setting 1ANIEN.1=1 will force the Com6srvr to read an analog input with a one volt input level.