Principle Of Operation; Technology Objects (Tos) - Basics; Interaction Of Motion Control Instructions And Technology Objects; Motion Control Instructions - Siemens SINAMICS G120 Application Description

3 Principle of Operation

3.1 Technology objects (TOs) – basics
3 Principle of Operation
3.1 Technology objects (TOs) – basics
The motion control functions of the SIMATIC S7-1500 CPUs are based on the Axis
technology object.
From a programmer's point of view, the Axis technology object represents the
SINAMICS drive, i.e. the converter, motor and, where necessary, position encoder.
The position encoder is necessary only for positioning axes.
The SIMATIC S7-1500 supports speed axes and positioning axes:
•
Speed axes allow you to specify the speed at which the axis is to rotate.
•
A positioning axis supports all functions of a speed axis and additionally offers
the option of approaching position values.
3.2 Interaction of motion control instructions and
technology objects
3.2.1

Motion control instructions

A motion control instruction sends a job to the technology object, which then
executes the job. Such a command can, for example, be an axis enable, moving at
a constant velocity or positioning
A technology object can be accessed by multiple motion control instructions.
Aside from the job status display on the motion control instructions, the Axis
technology object also saves general information such as the current velocity and
2
position
Figure 3-1 Data exchange between a TO and multiple motion control instructions
3
Only positioning axes
SINAMICS G120 as a Speed Axis on the S7-1500
V1.0a, Entry ID: 78788716
in a technology DB.
3
.
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