Siemens SIMATIC Ident Operating Manual page 40

Operating the software
5.3 The tabs of the RF640R/RF670R readers
Display of the RSSI values
The RSSI values of the transponders are shown in three representations:
● RSSI value according to transponders (a)
● Current RSSI value (b, c)
Note
RSSI display when changing data sources
If the data source is changed in other tabs when recording RSSI values, the display of the
previously measured RSSI values of the previous data source is retained on screen. The
RSSI values of the other data source are added.
This behavior can be avoided using "Clear View".
40
The bar diagram shows the RSSI values of the identified transponders in chronological
order. The Y axis shows the RSSI values of the transponder that were read. The X axis
shows the read access to the various transponders. With each read access, the RSSI
values of all identified transponders are represented as a bar.
The transponders are assigned the same colors as in the table above. If a transponder is
selected in the table, the transponder in the bar diagram also changes to the selection
color.
If no transponder is identified during the read, a bar with the RSSI value "0" (no bar) is
displayed.
With this representation, you can recognize quickly and simply when a transponder is not
read with every access.
The last measured RSSI value is shown in a further bar. With the aid of this view, you can
quickly find the ideal alignment for the highest RSSI value by varying the antenna
position.
The current RSSI value of the selected transponder is also displayed as a numeric value.
Operating Manual, 09/2012, C79000-G8976-C292-01
SIMATIC RF-DIAG