OBID
i-scan
®
UHF
Manual
ID ISC.LRU3000/3500
FEIG ELECTRONIC GmbH
Page 14 of 193
H90202-7e-ID-B.docx
5.2. Configuration Commands and Control Commands
The Host Commands provide the exchange of data between a host and Transponders via the
Reader as long as the Transponder remains in the detection range of the Reader.
NOTE:
During the writing of data on a Transponder, it must be ensured that the Transponder is
located within the detection range of the Reader during the entire process. If the Trans-
ponder is removed from detection range of the Reader during a writing process, this will
cause a loss of data.
The Reader to Transponder addressing mode:
Addressed mode:
Before reading or writing data in addressed mode, the UID of the Transponder has to be known.
This is executed by sending the protocol 10.1.1. [0x01] Inventory
If a Transponder is located with-
in the detection range of the Reader at that time, it answers with its UID. For all following read- /
write orders the Transponder must be addressed with its correct UID. The following chart will show
the necessary steps for the communication with a Transponder in addressed mode:
Host (Terminal / PC / ....)
Reader
Inventory
to get the UID
→
Transponder in antenna field?
Yes
No
←
status /
number of Trans-
ponders / UID
status =
no Transponder
←
read data from Transponder with UID
→
Transponder with
correct UID in antenna field?
Yes
No
←
status /
Transponder read
data
status =
no Transponder
in Reader field
←
write data to Transponder with UID
→
Transponder with
correct UID in antenna field?
Yes
No
←
OK status
status =
no Transponder
in Reader field
←
