Siemens SIMOTION Function Manual page 162

Measuring Input TO - Part III
5.3 Configuring the Measuring Input technology object
You can set the following parameters:
Table 5-7 Measuring input defaults
Field/Button
Edge
(measurement once)
Start of measuring
range/
End of measuring range
(measurement once)
(See also Chapter
Measuring range)
Measuring range
(measurement once)
(See also Chapter
Measuring range)
Cyclic measuring edge
(Page 141)
See also
Measuring range (Page 148)
162
Meaning/information
Under Edge you select the signal edge that starts the measurement when present at the measuring
input and measures the actual position of the axis.
The drive must be capable of evaluating the signal edge (rising, falling, or both edges) selected
by SIMOTION at the measuring input.
Rising edge (low to high)
The actual position is recorded with the rising edge of the measuring input.
Falling edge (high to low)
The actual position is recorded with the falling edge of the measuring input.
Measure at both edges
The actual position is recorded using both the rising and falling edge of the measuring input.
Measure at both edges, starting with a rising edge (low to high)
The actual position is recorded using both the rising and falling edge of the measuring input, and
measurement is begun at the first rising edge.
Measure at both edges, starting with a falling edge (high to low)
The actual position is recorded using both the rising and falling edge of the measuring input, and
measurement is begun at the first falling edge.
Enter the start and end of the measuring range here.
If the start of the measuring range is greater than the end of the measuring range for modulo axes,
the measuring range extends from the initial value through the modulo transition to the end value.
For non-modulo axes the initial and end values are swapped in this case.
Under Measuring range you can choose whether or not to apply the defined measuring range.
Measuring without specified range
The measuring input records the measured values in the entire traversing range.
Measuring in specified range
The measuring input only records the measured values within the measuring range defined by the
start and end points.
The edges to be detected in cyclic measuring are selected here. Up to two edges can be acquired
cyclically per measuring input processing cycle (IPO interpolation cycle, IPO_2 interpolation cycle,
or servo cycle clock). Cyclic measuring is only possible with certain hardware (see Hardware for
measuring inputs (Page 132)).
All edges
Both rising and falling edges are measured.
Rising edges only
Only rising edges are measured.
Falling edges only
Only falling edges are measured.
Output Cams and Measuring Inputs
Function Manual, 04/2014