Siemens SIMOTION Function Manual page 137

measuring input (hereinafter referred to only as measuring input) is configured on a HW input.
Additional Measuring Input TOs can be configured as monitoring measuring inputs and
interconnected with the Measuring Input TO. The monitoring Measuring Input TOs "listen in"
on the measurement event of the Measuring Input TO.
The monitoring Measuring Input TOs can also be assigned to other axes / external encoders.
With this functionality, one measuring input can have a functional effect on several axes /
external encoders.
The "listening in" property on the Measuring Input TO is set with the configuration data
element inputAccess:=TO_INTERFACE.
Note
An event can only be measured on more than one axis/external encoder at the same time if
the measuring input TO is configured as a global measuring input (see Hardware for
measuring inputs (Page 132)). Only these inputs have the necessary time stamp functionality.
Procedure
One measuring input is interconnected with one measuring input, as usual. This measuring
input is the original measuring input. The measuring process is activated and the measurement
events are measured on this measuring input. The monitoring measuring inputs are connected
internally to the measuring input via an interconnection interface, and the measurement events
are communicated simultaneously.
The activation and deactivation of the measurement, as well as the configuration of a
measuring range can only take place on the measuring input. Activation and deactivation
commands issued on the monitoring measuring input are not executed and are returned with
errors. Technology alarm 40011 is issued.
Functionality
● Activation and deactivation of the measuring process on the measuring input only. These
● Measuring range and edge selection are only available on the measuring input.
● The monitoring measuring input must be configured correctly at the time of the
● A monitoring measuring input does not have its own measuring input and cannot perform
● The processing cycle clocks of the measuring input and the monitoring measuring input do
The following must be considered when interconnecting more than one measuring input:
● The measuring input and the monitoring measuring input are interconnected with one axis
● A measuring input can be interconnected with more than one monitoring measuring input
● A measuring input has no interconnection on the input side.
Output Cams and Measuring Inputs
Function Manual, 04/2014
commands are not active on the monitoring measuring input.
measurement (measuring input cycle clock, system number).
any measurements of its own.
not have to have the same setting. However, accuracy is lost if the measuring input TO is
assigned to the IPO and the monitoring TO measuring input is assigned to IPO_2, and IPO
and IPO_2 are configured differently.
TO or external encoder.
on the output side.
5.2 Fundamentals of Measuring Input technology object
Measuring Input TO - Part III
137