User Manual

108 Visualizer PLUS System Manual
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These statistics are computed using the last number of Tag packets (Received Packets) received from
the selected Tag.
o Reader – Name of Reader for which the statistics apply
o IP Address/ID – MAC address of the Reader
o Status – Operational status of the Reader—COMMS DOWN or operational. A Reader is
marked as COMMS DOWN if a packet has not been received within a given timeout. The
timeout is set using the Menu Bar / Settings / Timeouts… submenu item. Figure 5-13:
Timeouts Dialog
o Last Seq # – Sequence number of the last packet received from the specified Tag
o RSSI – Received Signal Strength Indicator (RSSI) for the last packet received from the
specified Tag
o Preamble Cnt – Status indicator for the last received packet is for diagnostics use only
o Received Packets – Number of packets received from the specified Tag
o Dropped Packets – Number of packets that were not received, or received with errors by
the Reader. The value is determined using the sequence number of the packet.
o RX % – Percentage of packets received by the Reader calculated as
Received Packets / Total Packets Transmitted
 Position Stats – display the Position Statistics dialog. You can use this dialog to view statistical
data about the Tag position, including the average x, y, z location, standard deviation, and
maximum deviation. Note the statistics can be sorted by clicking the column header on which to
sort. The data can be sorted by Tag Name, Serial Num, or Num Positions.
Position statistics are only valid for a stationary Tag in a non-changing environment. Position statistics are
evaluated from a buffer of the most recent 1024 position results, or the value in the Num Positions column,
whichever is less.
Figure 5-10: Position Statistics Dialog