UIC Bezel5 Programmer’s Manual
Page.29/166
UDN PM098 Rev. 1.0
Copyright © 2013, Uniform Industrial Corp. All Rights Reserved
Example of Protocol 2, RS232 Interface
Host Command
Reader Response
Comment
<01><00><00><01>P<50h>
Ready to read
<01><00><00><01>^<5Eh>
Reader ACK
Example of Protocol 2, USB Interface
Host Command
Reader Response
Comment
<C2><00><06><01><00><00><01>P<50h>
Ready to read
<C2><00><06><01><00><00><01>^<5Eh>
Reader ACK
The <ADDRESS> field is for a multi-reader system. This function is not currently supported. The
recommended value for this field is NULL (00Hex) but any value will work.
For Protocols 2, if the reader detects an error in an incoming transmission, it will respond with a
“Communications Error” message. If the host detects a transmission error, it may request a
retransmission.
Protocol 0 is the simplest protocol without adding the redundant data. In order to handle the
properly communication, it enforces a 100mSec timeout between characters. In brief, the reader
expects the incoming command is ready after 100 ms timeout.
For the applications with the short latency requirement, please choose Protocol 2. The reader
processes the incoming command right after received a complete packet.
If the application requests to exchange the binary data, Protocol 2 is recommended.
