Description of the Software Modules and Parameters
Parameter manual b maXX BM5800
Document No.: 5.16029.03
251
of 814
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3.4.14 PT
1
Filters
Per axis two instances of freely programmable PT
1
filters exist, whose outputs can be
used further on, for example as an input for a PID controller, for analog outputs, as display
filter or within the SoftDrivePLC.
At a double axis there are 4 PT
1
filter independently of one another - every axis was as-
signed to accordantly two instances (instance 0 and instance 1).
Every PT
1
filter instance whose instance number (with i = 0 or 1) is indicated in the pa-
rameter ID in the second last position, is available of the following parameters:
3.4.14.1 Temporal features of the filters
Both of the instances of the PT
1
filters of every axis are calculated permanently in the RT1
cycle alternating every 2 ms. The cycle time in which every filter is calculated, is therefore
not settable.
3.4.14.2 Parameter overview
Parameter ID Name Remark
P182.1.i.0 Mode Activate / deactivate filter
P182.2.i.0 Source parameter ID Filter input
P182.3.i.0 Time constant PT
1
filter Time constant T, Data type float.
Unit 1 s with three decimal places
P182.4.i.0 PT
1
filter output Smoothed output value
Number Name Type Min Max Default Value Unit Factor
Read only
Storage
DS Support
Cyclic Write
Axis-independent
182.1 Mode WORD 0 0xFFFF 0 1:1 X O
182.2 Source parameter id UDINT 0 4294967295 0 1:1 X
182.3 Time constant PT1 filter FLOAT 0 32.767 2 s 1:1 X O
182.4 PT1 filter output FLOAT -3.4028234e38 3.4028234e38 0 1:1 X
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