19/09/18
Page 42 of 67
ASR650 Operational Manual
4.6.8
Processing Priority
The ‘
Processing Priority
’ decides whether tag reading or communication should be handled with
a higher priority. The default value is
‘
Reading
’. In case a command is sent to the reader, the
reading slot will be finished first. The request is being processed at the end of the next HDX
period. When ‘
Communication
’ is selected, reading is aborted immediately and the request will
be processed right away.
Select the desired processing priority and
press ‘
set
’. The currently configured setting
can be requested via the ‘
get
’ button or via
‘
Read all
’.
Having the priority set to ‘
Communication
’ and sending requests to the
reader too often and too fast leads to a reduced reading speed because each
request can result in the abortion of the current reading cycle.
4.6.9
Zero Tag Output
This section contains the settings that deal with tag outputs from the reader when no tag has been
read successfully.
By setting the checkbox ‘
ON
’ the reader is configured to always sending ‘empty
tags’ repeatedly about every 50 milliseconds. This allows the host to ensure that the com-
munication is still running okay. When ‘
HDX-Header
’ is set, the reader will send an ‘empty ID’ in
case it detected a header at the beginning of the HDX telegram but it could not decode a valid
number. This can happen in case of data collision when two or more HDX tags are present at the
same time.
Enable the desired setting and press ‘
set
’ in
order to send configuration to the reader.
Via the ‘
get
’ button or via ‘
Read all
’ the
currently configured settings can be
requested.