User's Manual

S21 RFID System - Final Test
Configuration and Operation 5-19
@r HTL<Enter>
The Reader should respond with the value for this parameter. For example, HTL=95.
d) If the HNL level measured in Step b) is lower than -95dBm, set the Reader’s Carrier Threshold
level again, by typing:
@r S<Enter>
or
@r :CONFIG:THRESHOLD<Enter>
The Carrier Threshold level setting is correct if the new HNL level displayed is smaller than or
equal to the level displayed in Step c. If not, check for unwanted transmission on the UHF
channel. You should also refer to Chapter 4, Setup Guidelines in the RFID System S21
Technical Guide.
3. Verify that an Exciter that is controlled by a Reader communicates with the Main PC:
a) Delete all Tag records from the Reader’s buffer, by typing:
@r :DATA:PURGE<Enter>
b) Confirm that the Reader’s buffer is empty, by typing:
@r D<Enter>
or
@r :DATA:REPORT<Enter>
The Reader must report a Null value.
Note For an IPC application, the data structure conforms to the ANS.1 standard. If the Reader’s buffer is
empty, the Reader sends a Null value of $0500. In ASCII format, the Null value is {}.
c) Switch on the LF field, by typing:
@r B<Enter>
d) Send a Test Exciter command, by typing:
@r :TEST:EXCITER k<Enter>
where r is the Reader’s address and k is the Exciter’s address. The correct Exciter’s response is
00.
e) Check the received messages, by typing:
@r D<Enter>
or
@r :DATA:REPORT<Enter>