Configuration manual Reader
20
Modifications, misprints and errors excepted.
English
2.
Description of the configuration parameters
During antenna-dependent operation the antenna information is used in this process, as well as the EPC.
That means that a tag which was detected by multiple antennas also generates multiple records in the reader.
Each record then contains the same EPC but a different antenna port number. During antenna-independent
operation the antenna information is irrelevant. A tag which was detected by multiple antennas generates only a
single record in the reader.
2.6.3.
“ASyncAdditionalRSSIDataDeliveryDelta”
Characteristics:
available from firmware:
v2.00.00
Data type:
Byte (8-bit)
Unit:
–
Value range:
0-255
Description:
This configuration parameter influences the behaviour of all asynchronous protocol commands (“ASync...”) except
for “ASyncGetRawEPCs”.
During asynchronous commands, when a tag comes within range of an antenna, a “coming” message is generated
and sent to the higher level. When the tag leaves the antenna field, a “going” message is generated. In various
application scenarios it is of interest to view how the field strength (RSSI value) of a tag behaves in the time
between the “coming” message and the “going” message. This allows amongst other things conclusions to be drawn
regarding the movement of a tag within the antenna field.
This configuration parameter specifies how much the change in strength of the RSSI value of a tag must
be in order to generate a “TagDataChanged” message which is then sent to the higher level. At a value of 255,
no “TagDataChanged” messages are generated.
Note
In order that the RSSI value is also included in the “TagDataChanged” message, the configuration parameter
“ExtendedResultFlag” should also be set.
2.6.4.
“UseMillisecondsAsTimestamp”
Characteristics:
available from firmware:
v2.00.00
Data type:
Bool (8-bit)
Unit:
–
Value range:
0; 255
Description:
After an inventory, a time stamp with the time of detection of the tag can also be sent to the higher level as part
of the tag information (see “ExtendedResultFlag”). This configuration parameter specifies whether the time
stamp should be the UTC time in seconds since the 01.01.1970 0:00, or the milliseconds elapsed since the
the reader was started. If this configuration parameter is activated, the milliseconds since the start of the reader
will be sent as the time stamp.
