Setup Guide

"T" – Initiate INVENTORY
T<n> sub-commands perform the same inventory action as the odd-numbered sub-
commands that precede them, except more information is provided in the tag report besides
just “Tag=<epc>”:
TAG=<epc> <freq> <slot> <Imag> <Qmag> <I/Qdecoded> <timestamp>
In all of the T<n> commands, sending the command alone causes the command to execute
repeatedly, until a character is received over the interface port. If the T<n> command is
followed by an optional one-byte <LOOPCOUNT> parameter, the command executes in a
loop the number of times specified by <LOOPCOUNT>. Note that providing a
<LOOPCOUNT> value of 0xFF is the same as providing no value - a continuous loop occurs
until a character is received on the interface port.
Sub
Command
Description Special
Features
T1
T1[<LOOPCOUNT>]
Sends a QUERY/QUERYREP/ACK sequence.
Number of QUERYREPs is determined by the global Q value.
No SELECT is sent, so no masking occurs, even with masks active.
No SELECT
No XDATA
T2
T2[<LOOPCOUNT>]
Same as T1, but each tag reports the RF frequency it was acquired on.
No SELECT is sent, so no masking occurs, even with masks active.
No XDATA processing occurs, even with XDATA DESCRIPTORs active.
No SELECT
No XDATA
T3
T3[<LOOPCOUNT>]
Sends a SELECT/QUERY/QUERYREP/ACK sequence.
Number of QUERYREPs is determined by the global Q value.
No XDATA processing occurs, even with XDATA DESCRIPTORs active.
No XDATA
T4
T4[<LOOPCOUNT>]
Same as T3, but each tag reports the RF frequency it was acquired on.
No XDATA processing occurs, even with XDATA DESCRIPTORs active.
No XDATA
T5
T5[<LOOPCOUNT>]
Same as T3, but XDATA processing occurs for each tag found.
This adds REQRN/READ and/or WRITE commands.
-
T6
T6[<LOOPCOUNT>]
Same as T5, but each tag reports the RF frequency it was acquired on.
-
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