Local And Global Measuring Inputs - Siemens SIMOTION D410-2DP/PN Installation Manual

Configuring drive-related I/Os (without symbolic assignment)
A.2 Local and global measuring inputs
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
measurement records the actual position value.
● 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
Hardware supported
Measurement procedure
Configuration of the TO measur‐
ingInput in SIMOTION SCOUT
Measuring input TO setting:
Single measurement
1)
Measuring input TO setting:
Cyclic measurement
2)
Use of multiple measuring input
TOs on one axis/encoder. They
can be active concurrently
Listening TO measuringInput
318
Local measuring input
D410, D410-2, D4x5, D4x5‑2 (terminal
X122/X132), CX32, CX32‑2, CU310,
CU310-2, CU320, CU320‑2
With a signal edge at the relevant input, the
current actual values of an encoder con‐
nected to a control unit are measured with
positioning accuracy to determine lengths
and distances.
The assignment of inputs is always perma‐
nent depending on the hardware of the
control unit and is performed during the
configuration of the TO measuringInput us‐
ing the measuring input number.
yes
no
no
no
Global measuring input
TM15, TM17 High Feature, D410, D410‑2,
D4x5, D4x5‑2 (terminal X122, X132, X142),
CX32, CX32‑2, CU310, CU310-2, CU320,
CU320‑2
With a signal edge at the relevant input, the
current actual values of one or more encod‐
ers are measured using time stamp function‐
ality with positioning accuracy in order to
provide information for determining lengths
and distances (possible with any encoders
included in the project).
The assignment of inputs is not fixed de‐
pending on the hardware and is performed
during the configuration of the TO measur‐
ingInput by means of symbolic assignment
or the hardware address.
yes
Yes
D410, D410-2, D4x5, D4x5‑2 (terminal
X122, X132), CX32, CX32‑2, CU310,
CU310-2, CU320, CU320‑2:
The minimum interval between 2 measure‐
ments is 3 servo cycle clocks (max. 2 edges
per measurement).
D4x5‑2 (terminal X142), TM17 High Feature:
The minimum interval between 2 measure‐
ments is 1 servo cycle (max. 2 edges per
measurement).
TM15:
No cyclic measurement available
yes
yes
Commissioning and Hardware Installation Manual, 01/2015
SIMOTION D410-2