Siemens SIMATIC S7-1500T - 3 Axis Technology Object; Speed Axis (To_Speedaxis); General Information

3 "Axis” Technology Object
3.1 Speed axis (TO_SpeedAxis)
TOs of S7-1500(T)
Entry ID: 109743134, V1.0, 05/2017
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 Siemens AG 2017 All rights reserved
3 "Axis” Technology Object
3.1 Speed axis (TO_SpeedAxis)
3.1.1 General information
The speed axis represents the simplest technology object to control an axis from
SIMATIC.
Figure 3-1 Speed axis (TO_SpeedAxis)
The technology object takes on the easy and PLCopen-compliant transfer of the
desired speed setpoint to the drive, in which the actual speed control of the axis or
the motor takes place. The control loop is solely responsible for maintaining the
requested speed of the axis or the motor, this is why no information on the current
position of the axis is provided by this technology object.
This is the reason why the speed axis is the also the technology object with the
smallest resource consumption in the SIMATIC controller.
The following motion control instructions can be used together with the speed axis:
 "MC_Power”
Switching on of the axis.
 "MC_Reset”
Acknowledging the pending error and warning messages on the axis.
 "MC_Halt"
Stopping the axis.
 "MC_MoveVelocity”
Moving the axis at a preset speed.
 "MC_MoveJog”
Manual moving of the axis in jog mode.
 "MC_TorqueLimiting”
Enabling a force or torque limitation on the axis.