RobotStudio can be downloaded from abb.com and be installed on any PC. Use of basic functionality (online) is free. Use of premium functionality (offline) requires a subscription. Please contact your local ABB sales office for pricing information and to sign up. You can try the premium functionality for free for a 30 day period.
Use of the ArcWelding PowerPac requires a separate subscription. You can try it out free for 30 days.
RobotStudio (including AWPP) is free to qualifying schools. The latest version is 5.12. Have your school contact ABB to upgrade.