Configuration of drive-related I/Os (without symbolic assignment)
A.2 Local and global measuring inputs
SIMOTION D4x5-2
374 Commissioning and Hardware Installation Manual, 02/2012
A.2 Local and global measuring inputs
Local and global measuring inputs
Depending on the used hardware platform, the following local and global measuring inputs
are available for the measuring tasks:
● Local measuring inputs are axis-related and implemented in the SINAMICS drive. The
actual position value is measured.
● Global measuring inputs can be freely assigned to the axes and add an internal time
stamp to the measurement result for more precise determination of the axis positions.
The term "central measuring input" is also used within the context of drives.
Table A- 1 Comparison of local and global measuring inputs
Local measuring input Global measuring input
Hardware supported D410, D410-2, D4x5, D4x5-2 (terminal
X122/X132), CX32, CX32-2, CU310,
CU310-2, CU320, CU320-2
TM15, TM17 High Feature, D410,
D410-2, D4x5, D4x5-2 (terminal X122,
X132, X142), CX32, CX32-2, CU310,
CU310-2, CU320, CU320-2
Measurement procedure With a signal edge at the relevant input,
the current actual values of an encoder
connected to a control unit are
measured with positioning accuracy to
determine lengths and distances.
With a signal edge at the relevant input,
the current actual values of one or
more encoders are measured using
time stamp functionality with positioning
accuracy in order to provide information
for determining lengths and distances
(possible with any encoders included in
the project).
Configuration of the measuring input
TO in SIMOTION SCOUT
The assignment of inputs is always
permanent depending on the hardware
of the Control Unit and is performed
during the configuration of the TO
measuringInput using the measuring
input number.
The assignment of inputs is not fixed
depending on the hardware and is
performed during the configuration of
the TO measuringInput by means of
symbolic assignment or the hardware
address.
Measuring input TO setting: Single
measurement
(Measurement jobs must be issued
individually for each measurement.
Several interpolation cycle clocks lie
between two measurements.)
Yes Yes