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AMT58x-PN ProfiNET®
Measuring units / Revolution
It is used to program a user specific resolution per each revolution
(singleturn resolution). Allowed values are equal to or lower than the
hardware counts per revolution (physical singleturn resolution). We
suggest setting values that are a power of 2 (1, 2, 4, ... 2048, 4096,
...). See the parameter
Scaling function control
below.
Default = hardware counts per revolution (min. = 1, max. = hardware
counts per revolution)
NOTE
There is no functionality of this parameter if the
Scaling function
control
parameter is disabled.
EXAMPLE
The HS58 PT Profinet singleturn encoder has a singleturn resolution
of 18 bits (262144 cpr); the permissible value for the
Measuring
0
18
18
units / Revolution
will be between 2
and 2
(2
= 262144).
NOTE
When you change the value next to this parameter, then you are
required to enter a new preset.
Total measuring range
This parameter sets the number of distinguishable steps over the
total measuring range. Allowed values are equal to or lower than the
total hardware resolution value (physical multiturn resolution).
We recommend the Number of revolutions to be set to a power of 2.
The set Number of revolutions results from the following calculation:
Total measuring range
Number of revolutions =
Measuring units /
Revolution
Setting the Number of revolutions to a value which is a power of 2
is meant to avoid problems when using the device in endless
operations requiring the physical zero to be overstepped. If you set
the Number of revolutions which is not a power of 2, a so-called
"Red Zone" is generated before the physical zero.
For more detailed information refer to the section 9.5 "Red Zone" on
page 71).
Default = total hardware resolution (min. = 2, max. = total hardware
resolution)
NOTE
63
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