Art. No. DS 4092 TS
Figure 26: Rotation angle and step widths in segments during a fast rotary knob operation
T
Parameter "Time for standstill after each movement"
<T slow operation: Step width according to ETS parameter
>T fast operation: Step width dependent on rotation angle
The rotary knob distinguishes between slow and fast control operations by counting the number
of notches within a time period (T). The time period is defined directly by the parameter "Time
for standstill after each movement" and retriggered for each new movement. If the device
counts three notches within the time period, it evaluates the control operation as fast and
switches over from the fixed step width according to ETS parameter to the step width dependent
on rotation angle. Otherwise, it is a long control operation that is retriggered and executed with
each new notch.
During a value adjustment up to the limits of the adjustable range, the limiting values ("0" or
"255") are always transmitted (figure 27). If, during the value adjustment, the device detects that
the effective step width will exceed the limits with the next telegram, the device adapts the step
width once in such a way that the corresponding limit value is transmitted together with the last
telegram (here "247" -> "252" -> "255"). After reaching the limiting values, the value in the
communication object of the feedback is always adjusted based on the effective step width
(here "255" -> "250" -> "245") during a new adjustment in the other adjustment direction. An
adjustment to the original starting does of a previous operation (here "247") not take place
automatically here.
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Software "Rotary sensor with extensions 10FE1x"
Functional description
