ThingMagic M5e-Compact - Manual (Page 92)

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
Get 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
D
E
C0
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