User Guide

Table Of Contents
Gen2 Tag Commands
108
updating the Option field to set the appropriate flag for the tag singulation based on EPC
value
The response contains the requested metadata and the tag EPC matching the requested
tag EPC:
Read Tag Multiple (22h)
The Read Tag Multiple command supports several different levels of functionality. In
addition to performing a Basic Search Operation for all tags in the field it can also perform
advanced searching and perform operations on the tags found. The different syntax for
Read Tag Multiple are defined as follows:
Basic Tag Inventory - Searches for and returns all tags in the field.
Tag Inventory with Select - Searches for and returns all tags in the field meeting Select
criteria as defined by Tag Singulation Fields
specified.
Tag Inventory With Embedded Operations - Allows for operations (Write Tag Data, Lock
Tag, Kill Tag, Read Tag Data) to be performed on each tag inventoried.
FF 12 21 01 E8 11 00 14
SOH Length OpCode Timeout Options Metadata Flags
60 11 11 22 22 33 33 44 44 55 55 66 66
9F
C
E
Select
Data
Length
Select Data (EPC) CRC
FF 16 21 00 00 11 00 14
SOH Length OpCode Status Options Metadata
Flags
22 0F C8 CD B7 11 11 22 22 33 33 44 44 55 55 66 66 18 35
Ant
ID
Timestamp Tag EPC Tag CRC
FE 7D
CRC