Information On - IDENTEC SOLUTIONS i-B350 S Installation And Operation Manual


Push Button | User Data => max. 43 Bytes of user data
 Push Button | User Data | Marker => max. 32 Bytes of user data
2.5 Information on Burst Settings
The parameter ―Time between Bursts (Marker)‖ is not simply a delay time. It is in fact a timeslot. In this
timeslot the tag chooses a random moment to do a single burst. This avoids that bursts collide with other
tags, that are simultaneously triggered by the same marker loop. These timeslots are repeated until all bursts
are sent.
With very few tags the factory setting of 40 ms is sufficient. In case there is the possibility that dozens of tags
are triggered to burst at once, this value can be increased. This brings the tradeoff of a longer overall time
until all bursts are sent. E.g. with a slot width (Time between Bursts) of 700 ms and 8 bursts, the amount of
time for all bursts is 5.6 seconds.
Example
This example shows 3 tags (A, B, C) that are simultaneously triggered by a marker loop (LF marker) and are
configured to burst 3 times. The timeslot (Time between Bursts) is set to the default of 40 ms.
The last row shows how the random use of the timeslot avoids collision between the tags.
VISIBILITY DELIVERED. PAGE 13 OF 15