User's Manual

UHF RFID Reader UR - SERIES User Manual v1.14
37
1 – enabled.
All other values are reserved.
Pwd: 4 bytes, it is the 4 bytes access password of a tag. From left to right, the first two bytes are the
high bytes of access password, and the last two bytes are the low bytes. The most-significant bit of a
tag 32-bit access password is the most-significant bit in the 1st byte of Pwd (from left to right).
Likewise, the least-significant bit of a tag 32-bit access password is the least-significant bit in the
4th (last) byte of Pwd. Access password must be properly provided in the command.
MaskMem: 1 byte, mask area indication.
0x01 – EPC memory;
0x02 – TID memory;
0x03 – User memory.
All other values are reserved, reader will return a parameter error status in the response frame if
other value is delivered in this field.
MaskAdr: 2 bytes, entry bit address of the mask, the valid range of MaskAdr is 0 ~ 16383.
MaskLen: 1 byte, bit length of mask (unit: bits).
MaskData: mask data. The length of MaskData equals to MaskLen/8. If MaskLen is not a multiple
of 8 integer, the length of MaskData is equal to the int[MaskLen/8]+1. Non-specified lower
significant figures should be filled up with 0.
NOTE:
When MaskMem, MaskAdr, MaskLen and MaskData are not provided, full EPC number will be
used as mask pattern in inventory.
Response frame:
Len
Adr
reCmd
Status
Data[]
CRC-16
0x05
0xXX
0x12
0x00
——
LSB
MSB
8.2.18 Extended data reading with assigned mask
The function of this command is to read data from reserved memory, EPC memory, TID memory,
user memory of tag. Read operation starts from a defined address, and the unit of data is word.
Command frame:
Len
Adr
Cmd
Data[]
CRC-16
0xXX
0xXX
0x15
——
LSB
MSB
Parameters of Data[]:
Data[]
ENum
EPC
Mem
WordPtr
Num
Pwd
MaskMem
MaskAdr
MaskLen
MaskData