Balluff BIS U-6127-081-1 4-06-ST36 Betriebsanleitung Seite 201

BIS U-6127-081-1_4-06-ST36
Processor unit
6
Application planning (continued)
Loop filter
The loop filter allows stabilization of the list of found data
carriers by combining several readings. This way,
incorrect readings can be corrected or the results of
several searches can be combined in one list.
The loop filter sets the following parameters:
– Minimum number of successful reads: How many
times a tag must be successfully detected or read in
succession for it to be reported as detected/read to
the controlling device.
Fig. 6-1 illustrates the mode of operation of the filter:
Fig. 6-1: Loop filter mode of operation
The parameters of the loop filter can be set for the current
connection as follows:
Parameters 007 protocol
Parameter
Parameter 100C
(value range
Minimum
number of 1...255 scans)
successful
reads
Parameter Parameter 100D
Number of (value range
non-reads 1...255 scans)
Parameter Parameter 100E
Waiting time (value range
0...1000 s)
Scan cycle time Parameter 100C
(Pause between (value range
2 scans), 1...255 =
Global parame- 10 ms...2.55 s)
ter
To read out the set parameters, the GetASyncFilter() method can be
1)
used.
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OPC UA
SetASyncFilter()
hex
– Method
1
SetASyncFilter()
hex
– Method
1
SetASyncFilter()
hex
– Method
1
Parameter
hex
100C (value
hex
range 1...255 =
10 ms...2.55 s)
via UHF Mana-
ger Asynchro-
nous Scan Loop
Time
– Number of non-reads: How many times a tag must
be searched for unsuccessfully in succession before
it is reported to the controlling device as no longer
present.
– Waiting time: The length of time that a tag, after
disappearing from the antenna reading field, is
ignored before a new detection of the tag can be
reported (provided that the condition Minimum
number of successful reads is met).
The parameters 0023 , 0024
hex
respective default values for new connections for both 007
and OPC UA. The defaults can also be set via the UHF
Manager.
The loop filter and asynchronous operation
currently only support data carrier detection
with EPC output.
Scanning with output of TID values in combina-
tion with the loop filter or in asynchronous
detection mode is currently not supported.
and 0029 define the
hex hex
english 25