User's Guide

USER GUIDE: UBS-200L LF DESKTOP READER
April 4, 2019
Unified Information Devices | Chapter 3 – Operating and Configuring the UBS-200L
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Continuous ID Read Mode “MD 0”, “MD 2”
It may be desirable read the ID from multiple transponders in succession. Entering “MD 0” puts the
UBS-200L into “Continuous Read” mode. In this mode, the UBS-200L enters a new read cycle at the
completion of the previous one. If no transponder is read during a read cycle, “XXXXXXXX” is returned,
and a new read cycle begins. If a transponder is read, the transponder ID is returned, and a new read
cycle begins.
Figure 10. Continuous ID Read Mode.
Command “MD 2” returns the UBS-200L to “Standby” mode.
Information:
In “Continuous Read” mode, a new read cycle begins immediately
once a transponder is read and its ID returned. As such, a
transponder remaining in the UBS-200L’s field will cause the ID to
be returned several times in succession, until the transponder
leaves the read field. This behavior can be prevented by using the
CID command.
Information:
If the “CN” parameter is set to 1 and no transponder is presented,
the “XXXXXXXX” indicator will be suppressed, and NOTHING will
be returned to the host.