The invention is concerned with a robot control system and a method of controlling a robot where the robot control system includes a human-machine interface; a real robot control environment including a real robot and a real robot controller controlling the real robot and a cloud-hosted robot control environment including a virtual robot controller, which is a replica of the real robot controller, where the human-machine interface is configured to transfer a robot change instruction from a user to the cloud-hosted robot control environment, the virtual robot controller is configured to validate the robot change instruction and the real robot controller is configured to apply the validated robot change instruction when controlling the real robot.