User's Manual

UHF RFID Reader UR - SERIES User Manual v1.14
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NOTE:
The setting of this parameter will be preserved even reader power is down, i.e. reader will apply the
previous working mode setting on every restart.
Output format in real time inventory mode:
Once reader is set to real time inventory mode, reader will perform auto inventory according to
predefined configuration.
If a tag is inquired and the tag matches the predefined condition, reader will automatically upload
data in the following format:
Len
Adr
reCmd
Status
Data[]
CRC-16
0xXX
0xXX
0xee
0xXX
——
LSB
MSB
Status: the status of response, detail description is shown in the following table
Status
Description
0x00
Detected appropriate tag, reader will also report the detected tag data.
0x28
No appropriate tag detected within the heartbeat packet time interval, reader
will upload heartbeat packet.
(1) Response status is 0x00, parameters of Data[] are shown as below,
Data[]
Ant
Len
EPC/TID
RSSI
0xXX
0xXX
N bytes
0xXX
Parameters definition
Ant: indicates which antenna had inquired the tag. For example, 0x05 is 0101 in binary, this
indicates Antenna 3 and Antenna 1.
Len: 1 byte, the byte length of the EPC/TID.
EPC/TID: EPC number/TID data of tag, the length of data should identical with Len. The unit of
EPC C1 G2 data is word. Every tag EPC number or TID data is the most-significant word and the
most-significant byte in a word first.
RSSI: 1 byte, the reader signal strength at the time when the tag is inquired.
(2) Response status is 0x28, parameters of Data[] are shown as below
Data[]
PacketNo
AntStatus
TotalCount
4 bytes
8 bytes
4 bytes
Parameters definition
PacketNo: heartbeat serial number. 4 bytes, most-significant byte first.
Serial number will increase for ever heartbeat packet uploading operation. If heartbeat serial