Kathrein ARU4 Series, User Manual

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99 of 122
ཹ
Mask data sets the data to be filtered
ེ
Get
reads the data of the filter selected at
཰
ཻ
Set sets the select filter
Tip
In Generation 3 readers, select filter data are permanently stored in the reader, e.g. if the select filter has
been activated, it is active after a reader restart.
14.8.5 Applying a Select Filter (Example)
You have the following results of the basic reading but you would like only the tags with the FC28 in the memory address
to take part in the inventory:
Fig. 61: Basic reading: select filter required
To do so, it is necessary to create a select filter. The advantage of this process is that the filtering takes place already at
the air interface level.
To create the select filter as shown in the figure below:
7
8
9
2
4 5
1
2
3
4
5
6
1. Select the filter you would like to save the filtering settings to under
Filter
(
཰
).
2. Select the target (
ཱ
). Make sure the target matches the session set in
ྂ
Fig. 57, p. 97
.
3. Select an action (
ི
). In the example, the action is set to 100 ; see also EPCglobal Gen 2 Specification .
4. Select the EPC memory bank (
ཱི
).
5. Activate the select filter (
ུ
).
6. Refer to the EPCglobal Gen 2 Specification to check from which bit pointer the filter will search for the value according to
which you would like to filter the tags ( FC28 in the example); see pp. 44–46 in the EPCglobal Gen 2 Specification V 2.0. 1. In
the example, FC28 is the third word in the EPC memory bank (bit pointer 0x00 is the CRC, bit pointer 0x10 is the PC,
bit pointer 0x20 is the first EPC word). Therefore, FC28 corresponds to the bit pointer 0x40.
7. Enter 40 at Bit pointer (
ཱུ
).
8. Enter the mask length at
ྲྀ
. In the example, FC28 is one word, therefore, the value is 16 .
9. Enter the value ( FC28 ) at
ཷ
.
10. Click Set (
ླྀ
.
11. Go to Expert settings 1 .
12. In Selection Parameters, set the value at target to B ; see also EPCglobal Gen 2 Specification .
13. Start the reading in the
Basic reading
tab: