User's Manual

Product Manual - RFID Reader UF70 Certum 154
Chapter 7
Operation
Parameter 177
(0xB1)
Tag Comm Disable Receiving NXP Read Protected Tags
A transponder protected with "ReadProtect" of NXP does not transmit an EPC and
a valid checksum during an inventory. The data content of EPC and checksum is
zero. For the reader to be able to detect these transponders, it lets pass
transponders with EPC and checksum zero. These transponders are no longer
protected by a valid checksum. In order to avoid the reader detecting
transponders that are not present, this parameter should be activated. With this,
the reception of "ReadProtect" protected transponders is prevented.
Value range: 0; 255
Default: 0x00
Parameter 178
(0xB2)
Host Comm A Sync Additional RSSI Data Delivery Delta
This parameter influences the behavior of all asynchronous commands (activate
polling UAN command) except the UAA command. At asynchronous commands
(activate polling) an "incoming" message is generated and transferred to the
upper level if a transponder enters the antenna range. If a transponder leaves the
antenna range, an "outgoing" message is generated. In order to be able to follow
the movements of a transponder within the antenna range, the field intensity
(RSSI value) of a transponder between "incoming" and "outgoing" messages has
to be observed. This parameter indicates how the field intensity of a transponder
needs to change for a "TransponderDataChanged" message to be generated and
be transferred to the upper level. No messages are generated at an RSSI value of
255.
Value range: 0 - 255
Default: 0xFF
IMPORTANT
The Parameter Extended Resultflag (see  Parameter 118 (0x76)) has to be set
in a way that the RSSI value is part of the "TransponderDataChanged" message.