Encompass 4 Reader System Guide
6-10
where
<som> Start-of-message (ASCII # character)
<seq> Echo of sequence number received in host command message
<resp> Response string. The Encompass 4 Reader returns Done,
Error, or another ASCII string depending on the host
transmission. This string can be up to 72 characters long.
<crc> CRC value for the message
<eom> End-of-message character (ASCII CR and LF)
Sample Messages
This section contains examples of typical messages transmitted between the Encom-
pass 4 Reader and the host computer.
Reader Transmissions
Basic protocol reader transmission
#KING 1302<eom>
Host response
No host response for non-ECP
ECP reader transmission
#4KING 1302 <crc><eom>
where
# Start-of-message character
4 Message sequence number
KING 1302 Message data: Tag ID is shown.
Other sample message data could be as follows:
IOST C0 O2 I0 D24 (display I/O status)
Error06 (frequency not set)
<crc> CRC value for the message
<eom> End-of-message character
Host response
#4@<crc><eom>
where
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