Command Description
$AASi6 Read Digital Input OR Read Back Digital Output
@AASi Read Digital Input OR Read Back Digital Output
@AASiDDDDDDDD Set 32 bits Digital Output 
@AASiSCjjD Set  Single Channel Output
~AASi4P Reads Power On Value
~AASi4PS Reads Enable/Disable Status Of Power On Value
~AASi5P Enables Power On Value
~AASi5PC Disables Power On Value