TransCore 05531 User Manual
Encompass 4/4800 Multiprotocol Reader System Guide
6-10
where
#
Start-of-message character
4
Message sequence number
@
ACK
(acknowledgment character)
(? returned for a negative acknowledgment)
<crc>
CRC value for the message
<eom>
End-of-message character
Host Command Transmissions
Basic protocol host transmission
#64202<eom>
Reader response
#Done<eom> or #Error<eom>
#Error<eom>
is returned if the host transmission is not a legal command with legal
data.
ECP host transmission
#764202<crc><eom>
where
#
Start-of-message character
7
Message sequence number
64202
Select RF Operating Frequency
command where
642NN is the command and NN is a hexadecimal value from 00
to 34. In this example, 02 sets the RF frequency to 903 MHz.
to 34. In this example, 02 sets the RF frequency to 903 MHz.
<crc>
CRC
value for the message
<eom>
End-of-message character
Done
Command has been invoked by the Encompass 4/4800
Multiprotocol Reader
Multiprotocol Reader
Reader response
#7Done<crc><eom> or #7Error<eom>
For some commands, the Encompass 4/4800 Multiprotocol Reader responds with
data that relates to the command, such as T0F 0, to indicate Wiegand mode enabled
for a 532 Display Wiegand Mode Status command.
data that relates to the command, such as T0F 0, to indicate Wiegand mode enabled
for a 532 Display Wiegand Mode Status command.