User's Manual

Product Manual - RFID Reader UF70 Certum 152
Chapter 7
Operation
Parameter 173
(0xAD)
Tag Comm Transmit Get EPCs Pre Select
This parameter only affects the commands M, URM, URB, UAA and UAM. All other
commands behave as if the parameter was zero.
Parameter is zero:
1. The first antenna is chosen from the multiplex list.
2. All transponders within receiving range are reset by a Select.
3. An inventory is conducted until no further transponders can be found.
4. If the multiplex list contains additional antennas, the steps are repeated for
each of these antennas.
5. The command is finished and the result is transferred to the upper level.
Parameter is non-zero:
1. The first antenna is chosen from the multiplex list.
2. All transponders within receiving range are reset by a Select.
3. If the multiplex list contains additional antennas, this step is repeated for each
of these antennas.
4. The first antenna of this list is chosen again and an inventory is conducted until
no further transponders can be found.
5. This step is repeated for each antenna of the multiplex list.
6. The command is finished and the result is transferred to the upper level.
This parameter reduces the time for a comprehensive detection of a group of
transponders if this group is within receiving range of the antenna, and it is not
important which antenna detects which transponder. If during this process a
transponder is detected by an antenna, this transponder will not be processed by
the subsequent antennas.
Value range: 0; 255
Default: 0x00