ThingMagic M5e-Compact User Manual
Page 93
Application Tag Commands
Command Set
93
Read Tag Multiple Embedded Command Fields
Field
Value
Description
Select Options
[1 byte]
The Options value of the
Search Flags
[2 bytes]
Bit 3 of the
Read Tag Multiple Search Flags
must be set indicating this request contains
embedded command(s).
Timeout
[2 bytes]
Indicates how long the command should spend searching AND performing the embed-
ded command. It may be desirable to specify a longer timeout if a large number of tags
are likely to get the embedded command executed on them.
Access Password
[4 bytes]
The Access Password of the tags expected to be inventoried for the embedded com-
mand, if they are locked. If the tags are not locked specify 0x00000000.
Note:
If operating on locked tags, only tags which meet the Select criteria and
matching passwords will get a successful execution of the embedded command.
Note:
If Select Options=0x00 this field should be omitted.
The remaining, fields depending on the value of Select Options.
Embedded
Command Count
[1 byte]
The number of embedded commands to follow. [Only one allowed]
Embedded
Command Length
[1 byte]
Length of embedded commands. Follows standard Length value calculation: number of
bytes after OpCode.
Embedded
Command OpCode
[1 byte]
The OpCode of the embedded command. Currently supports:
When embedding Read Tag Data the complete set of data requested is returned for the
first tag that responds with the command response, but up to the first 32 bytes of data
requested is returned for every tag that responds and is stored in the tag buffer with the
other metadata. See
Example with Embedded Read Tag Data
below for details.
The fields and values required
by the embedded command.
The embedded commands do not support Tag Singulation as it is already performed
during the inventory operation. The Options field for the embedded command must be
0x00
.
Note:
The Timeout field for embedded commands must be 0x0000.