User's Manual

General Guidelines
7-2 Troubleshooting
The following table describes several possible failures for the 95 Series RFID System, and the
troubleshooting steps to correct them.
Problem Symptom Probable Cause Solution
No communication with
a Reader.
Reader does not
respond to any
command.
1. Reader has an incorrect
address.
2. Faulty communication line
between the Reader and
PC.
1. Check whether the Reader responds to
commands using different addresses, by
typing the following:
@1 IVN<Enter>,
@2 IVN<Enter>, @3 IVN<Enter>. When
a correct address is sent, the Reader will
respond with its version number.
2. If, by using a specific address, you are
able to communicate with Reader, use this
address or change the address to another
value.
3. If after checking all possible addresses (up
to 31), you still cannot communicate with
the Reader, check Probable Cause 2.
1. Open the Reader’s enclosure and connect
the PC directly to the Reader using the
RS-232 communication line. See
Connecting the RS232 Communication
Line on page 2-2.
2. Switch off the Reader’s power supply for
at least 5 seconds, then perform the steps
in the Reader’s Power-up Sequence on
page 5-3.
3. If the Reader performs the power-on test
successfully, press the RESET button
once. Check whether the DATA LED
starts flashing at the rate of 2 Hz.
4. Press the RESET button again. Check
whether the DATA LED stops flashing.
5. Check whether the Reader is responding
to local commands by typing:
@r IVN,
and pressing <Enter>, where r is the
Reader’s address. The Reader must
respond with its version number.