V2020.1.56.3_ DC Motor.


The DCMotor is a component to simulate an accelerated rotational motion on an axis. It consists of two components; Physical and Logic. Both are needed to control the motor through a logic adapter (connecting the DCMotor to an external controller through a https://unit040.atlassian.net/wiki/spaces/PUD/pages/280987237 ). Adding a Control Panel gives you the option to control the motor from the Unity scene.

A succesfully created DCMotor shows up with this gizmo

Where to find

The DC Motor can be found under

Standard Components > Motors > DC Motor > Physical Component / Logic Component


It will automatically be attached to a selected GameObject or otherwise it will create a new GameObject to attach to.
A https://unit040.atlassian.net/wiki/spaces/PUD/pages/281673729 will be created automatically as part of the component.

Selecting the newly created GameObject shows you the following menu in the Inspector.

Please note: this is an example of a GameObject with the Physical DCMotor component

Feature Layout - Physical Component

Live Data


Live Data


Target Velocity (deg/s)

Displays value of target velocity in degrees per second

Velocity (deg/s)

Displays current velocity in degrees per second





Wheel Joint

Sets the Wheel Joint the DCMotor will control

Maximum Velocity (deg/s)

Sets the maximum allowed velocity of the DCMotor in degrees per second

Angular Acceleration (deg/s2)

Sets the maximum allowed acceleration in degrees per second squared

Control Panel


Control Panel


Generate Control Panel for DCMotor

Create a Control Panel for this component

How to use - Physical Component

  1. Add a DC Motor Component to a GameObject, in this case a simple cube


  2. Add a Kinematics Controller, this can be found under Mechanics > Add Kinematics > Kinematics Controller. Make sure the Kinematic Controller is visible in the hierarchy and not connected to the Cube


  3. Make sure the Cube is parented under the Kinematic Controller in the Hierarchy


  4. Add a Control Panel


  5. Set the Preferred Velocity


  6. Press Play to see the rotation of the cube, controlled by the DC Motor

Feature Layout - Logic Component





DC Motor

Selects a DCMotor component you wish to connect to the PLC

In the PLC I/O panel you can see the latest input and output values from the PLC.

PLC Settings and Debugging are general Logic Component settings. Look at the Logic Component Documentation for more details.

How to use - Logic Component

Look at the https://unit040.atlassian.net/wiki/spaces/PUD/pages/280988469 for an example of how to connect a Motor Component to an external PLC.