User's Manual

UHF RFID Reader UR - SERIES User Manual v1.14
58
Command frame:
Len
Adr
Cmd
Data[]
CRC-16
MaxFre
MinFre
0x06
0xXX
0x22
0xXX
0xXX
LSB
MSB
Parameters definition
MaxFre: 1 byte.
bit7 ~ bit6: frequency band configuration;
bit5 ~ bit0: maximum frequency point.
MinFre: 1 byte.
bit7 ~ bit6: frequency band configuration;
bit5 ~ bit0: minimum frequency point.
NOTE:
Maximum frequency point must be larger or equal the minimum frequency point. Reader will return
a parameter error status in the response frame if other value is delivered in this field.
Frequency band configuration table
MaxFre(bit7)
MaxFre(bit6)
MinFre(bit7)
MinFre(bit6)
FreqBand
0
0
0
0
Reserved
0
0
0
1
Chinese band2
0
0
1
0
US band
0
0
1
1
Korean band
0
1
0
0
EU band
0
1
0
1
Reserved
0
1
1
0
Ukraine band
0
1
1
1
Peru band
1
0
0
0
Chinese band1
1
0
0
1
EU3 band
1
0
1
0
Taiwan band
1
1
0
0
US band3
…
…
…
…
…
1
1
1
1
Reserved
Response frame:
Len
Adr
reCmd
Status
Data[]
CRC-16
0x05
0xXX
0x22
0x00
——
LSB
MSB
Formulae for different frequency bands:
Chinese band2: Fs = 920.125 + N * 0.25 (MHz) where N ∈ [0, 19].
US band: Fs = 902.75 + N * 0.5 (MHz) where N ∈ [0,49].
Korean band: Fs = 917.1 + N * 0.2 (MHz) where N ∈ [0, 31].
EU band: Fs = 865.1 + N*0.2(MHz) where N ∈ [0, 14].