User Manual

130 Visualizer PLUS System Manual
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also Section 2.7 Troubleshooting Reader Communications for trouble shooting tips for Readers.
 Tag positions not being graphically updated
Tags are dynamically added to the database whenever a Reader receives a message from an
―unknown‖ Tag. If the Tag is in the database, it will be listed in the List View Frame.
If the Tag is in the database but its position is not being updated, check the following:
o Has the system been calibrated?
o Does the Tag appear in the Presence Detect display? If so, the Tag position cannot be
determined – it must be ―seen‖ by at least three Readers to calculate a valid position. See
Section 5.2.2 View for information on how to show ―presence detected‖ Tags.
If the Tag does not appear in the database, check the following:
o Has the Data Input been set to the appropriate NIC card or logfile using the Menu Bar /
Setting / Data Input submenu item? See Figure 5-12 : Settings Menu.
o Is the communication between the PC and the Readers down?