TwinCAT 3 Engineering (PLC programming environment) is free to install on any number of computers. To run the logic on a target system (your PC or a PLC), you can generate trial licenses: Open the License Manager : In your TwinCAT project, double-click tree in the Solution Explorer. Select Licenses : Go to the Manage Licenses
To use TwinCAT 3 features for free, follow these steps in the software: Open your project in (Visual Studio). In the Solution Explorer , go to SYSTEM > License . Click the Manage Licenses tab. Select the licenses you need (e.g., TC1200 for PLC). Click 7-Day Trial License... at the bottom. Enter the security code shown on the screen to activate. Caution on "Free Key" Downloads beckhoff key v2 4 free
You can generate a 7-day trial license for any TwinCAT 3 function directly within the XAE (Engineering Environment). TwinCAT 3 Engineering (PLC programming environment) is free