Description of the Software Modules and Parameters
Parameter manual
b maXX
BM3000
Document no.: 5.12001.07
427
4
If a negative virtual master axis speed
is selected, the cam is processed re-
versely.
Example for the calculation time of processing with a virtual master axis:
Count supporting points
= 512
Virtual master axis speed
= 216
Fieldbus task cycle time
= 1 ms
In order to obtain the required speed, in order to process the cam in 0.4 sec,
the following is required:
4.6.5.3 Parameter-controlled processing
With parameter-controlled processing, the table index is specified by an input parameter
and is adjusted by an accordant parameterization.
Index calculation is made as follows:
m
Input parameters - type "Float":
m
Input parameters - type "Integer":
n
Processing is executed once, only (
bit 5 = 0):
n
Processing is executed cyclical (
bit 5 = 0):
In order to process the AND operation in bit mode, the supporting point count
must comply with a power of 2 (for example 256 or 512).
Processing time
512 256
216
---------------------- 1 ms
0.60 s
=
=
Virtual master axis speed
Count_Supporting points 256
Cycle time of field bus task
Processing time
------------------------------------------------------------------
=
Virtual master axis speed
512 256
1 ms
400 ms
-----------------
328
=
=
Index
Parameter value
Base value (P159.14)
–
=
Index
Parameter value
Base value (P159.14)
–
>> Shift factor (P159.15)
=
Mask
0xFFFFFFFF >> 32
log
2
(Count_Supporting points
–
=
Index
Parameter value
Base value (P159.14)
–
>> Shift factor
& Mask
=
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