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Application Tag Commands
118 Command Set
Here is an example response to the example request specified above. The response
contains two tags as specified in the Tag Count field each with its EPC info and requested
tag read metadata: Read Count, AntennaID and Timestamp:
Tag Data Length
1
2 byte Length, in bits, of the tag data read for
this tag. This value indicates how many
bytes (ceiling[bits/8]), up to 32, will fol-
low.
Example: if the value is 0x1D (29) then 4
bytes will follow:
29/4 = 3.625 -- ceiling(3.625) = 4.
Ta g Data
1
N bytes Number of bytes of tag data as specified
in Tag Data Length
EPC Length 2 bytes Number of bits in EPC including PC and
CRC bits
PC Word 2 bytes Tag EPC Protocol Control bits
EPC ID N bytes Tag EPC.
Tag CRC 2 bytes Tag EPC CRC
Repeat fields starting at Read Count for remaining tags in message as defined by
Tag Count
CRC 2 bytes Message CRC
1 - Conditionally returned depending on the Metadata Fields specified in the request.
FF 34 29 00 00 00 15 00
02
SO
H
Length OpCod
e
Status Metadata
Flags
Read
Options
Tag
Count
22 11 02 50 CE F6 00 80 31 C1 11 11 22 22 33 33 44 44 55 55 66 66 FB 15
Read
Count
Ant
ID
Timestamp EPC
Length
PC W o rd Ta g E P C Tag C R C
OE 11 04 1D 3D 3C 00 80 30 00 05 00 00 00 00 00 00 00 00 00 23 54 4A C8
Read
Count
Ant
ID
Timestamp EPC
Length
PC W o rd Ta g E P C Tag C R C
Field Length Value
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