SIMPLE SERIAL INTERFACE
69
Parameter Data Format Table
Parameter Number
Data Format
0 through 0xEF
<param_num> <value>
0xF0, 0xF1, 0xF2
<extended parameter code> <param_num
offset> <value>
Host Requirements
Note:
Due to the processing time of interpreting and storing parameters contained in
the message, the reader may not be able to send an ACK within the programmable
Serial Response timeout. This is not an error; to compensate, increase the timeout.
The host transmits this message to change the reader’s parameters. Be sure the
Change Type bit in the Status byte is set as desired. The beep code must be set to
0xFF.
Reader Requirements
When the reader receives a PARAM_SEND, it interprets and stores the parameters,
then ACKs the command (if ACK/NACK Handshaking is enabled). These parameters
are stored permanently only if the Change Type (bit 3 of the Status byte) is set to 1. If
bit 3 is set to 0 the changes are temporary, and are lost when the reader is powered
down.
Summary of Contents for Dragon D151
Page 6: ...vi ...