Issues sending and receiving data

[amgen]

your sending capture looks good. Handling the receive, the debug in may or may not filter how you want... play with that some because if receiving HEX, that is 2 bytes to make into 1 byte value of DAT etc... ???? ... can also dictate (if it is not the default) 2 digits for the hex... HEX2
maybe.... DEBUGIN 1000,timeoutlabel,[WAIT("AF"),$DAT1,$DAT2,$DAT3].... or DEBUGIN 1000,timeoutlabel,[WAIT(HEX2 AF),$DAT1,$DAT2,$DAT3].... or DEBUGIN 1000,timeoutlabel,[WAIT(HEX2 "AF"),$DAT1,$DAT2,$DAT3]
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. Thought of 1 more thing.... add a temporary serout or debug and send to your capture or ser terminal 1 received character at a time to easily see what you are receiving