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Application Tag Commands

92 Command Set

Examples

Here is an example request and response showing the use of Tag Singulation/Select

Functionality to inventory tags which meet a specific criteria:

This command will inventory all tags with an EPC value ending in 0x66, which requires

adding the appropriate Tag Singulation Fields

to the Basic Tag Inventory syntax

Note

The Select Options field of the Tag Singulation Fields in the request is specified

at the beginning of the command followed by the Search Flags, Timeout,

Access Password then the rest of the Tag Singulation Fields. This is different

than the typical format for Select fields. Also, this syntax always requires an

Access Password be specified. Since only Reserved Memory can be read

locked and Reserved Memory cannot be used for singulation the Access

Password must be 0x00000000

The response contains the number of tags found matching the Select criteria specified.

Use G

et Tag Buffer (29h) to access the tag EPCs and Tag Read Meta Data:

Tag Inventory With Embedded Operations

In addition to inventorying tags, Read Tag Multiple can be used to perform an operation

on each tag in a population of tags. Starting with the Tag Inventory with Select

syntax to

define the population of tags the operation is to be performed on, the Search Flag bit 3

(0x0004) can be set to indicate embedded commands are to be performed on the

inventoried commands. The required fields are as follows:

FF 0F 22 04 00 00 03 E8

SOH Length OpCode Options

(EPC Mem)

Search Flags Timeout

00 00 00 00 00 00 00 78 08 66

Access Password Select Address (bits) Select

Data

Length

(bits)

Select

Data

CRC

FF 04 22 00 00 04 00 00 02 B7 6E

SOH Length OpCode Status Options

(EPC Mem)

Search Flags Tag Found CRC

1 2 ... 87 88 89 90 91 92 93 94 95 96 97 ... 251 252

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