User's Manual

OPERATION 5
95
HF5x Transponder Reader (SECS1-Protocol), Release 1.4
The secondary message fails and the reader sends the S9F9
message
Reader to Host: S1F1
In: ENQ ( 05 )
Out: EOT ( 04 )
In: Length Byte ( 0A )
In: Header 80 00 81 01 80 01 00 01 00 25
In: Checksum ( 01 A9 )
Out: ACK ( 06 )
Host to Reader: S9F9
In: ENQ ( 05 )
Out: EOT ( 04 )
In: Length Byte ( 16 )
In: Header 80 00 09 09 80 01 00 01 00 26
In: Data 21 0A 80 00 81 01 80 01 00 01 00 23
 The stored header
In: Checksum ( 03 0C )
Out: ACK ( 06 )
After sending the S1F1 message, the reader waits for an answer from
the host.
If the secondary message does not appear, a transaction timeout occurs
and the reader sends the S9F9 message.