INfinity 510 Protocol Reference Guide - Sirit

Chapter 4 - Reader Behavior
Read Tags
There are several functions which can be used to read various portions of a
tag’s set of information:
tag.read_id() – obtains the EPC or tag ID from the first tag
observed. The only argument to this function is the optional antenna
parameter.
For the following functions, you can use the optional tag_id parameter to
specify a specific tag to read (using the tag ID read with tag.read_id()).
If the tag_id parameter is not specified, then the first observed tag is
read.
tag.read_tid()– reads the TID memory of a tag. If the memory is
locked, the pwd argument can be used to specify the password.
tag.read_user_data()– reads the User Data memory of a tag. If
the memory is locked, the pwd argument can be used to specify the
password.
tag.read_access_pwd()– reads the tag’s access password. If the
memory is locked, the pwd argument can be used to specify the
password.
tag.read_kill_pwd()– reads the tag’s kill password. If the
memory is locked, the pwd argument can be used to specify the
password.
The tag.read() function can be used in addition to or in place of the
above tag.read_* commands. This function uses the report argument
to specify which fields to read. This function provides an alternative method
for reading multiple tag fields with one function.
In the following example, the tag ID, TID, and kill password are read from
the tag using individual tag.read_* functions. Next, the same
information is obtained with a single tag.read function.
> tag.read_id()
ok tag_id=0x3000214160C00400000A5937
> tag.read_tid(tag_id=0x3000214160C00400000A5937,
antenna=1)
ok tid=0xE2001040
>
tag.read_kill_pwd(tag_id=0x3000214160C00400000A5937)
ok kill_pwd=0x00000000
> tag.read(report=tag_id tid kill_pwd)
ok tag_id=0x3000214160C00400000A5937,
kill_pwd=0x00000000,tid=0xE2001040
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