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Data transmission between RF290R and host
3.2 ISO 15693 host commands
3.2
ISO 15693 host commands
The ISO 15693 host commands are a method of transferring data between the host and
transponders using the reader. To allow this, the transponders must be in the antenna field
of the reader.
Note
If you write data to a transponder, you need to make sure that the transponder remains in
the antenna field of the reader during the entire write procedure. If the transponder leaves
the antenna field of the reader during the write access, this results in loss of data. In this
case, an error message to this effect is displayed.
The reader distinguishes three modes:
Addressed mode
Before data can be read or written in the addressed mode, the UID of the transponder must
be known. You can obtain the UID by sending the command "[0x01] Inventory". If there is a
transponder in the antenna field of the reader at this moment, it replies with its UID. For all
subsequent read and write commands the transponder must be addressed with the correct
UID.
The following graphics show the necessary steps for communication with a transponder in
the addressed mode.
Figure 3-2
12
Sequence when calling up the UID in the addressed mode
Configuration Manual, 09/2014, C79000-G8976-C377-01
RF290R
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