Developing embedded safety critical real-time systems and ensuring properties such as deterministic behaviour in a simple way for the application designers is a challenging task. A large number of commercial and academic real-time operating systems (RTOS) as well as model-based development environments based on synchronous languages are available. Automatic transformations from synchronous modelling languages to RTOS are important for streamlining development of real-time applications without compromising the guarantees of their safety. In this paper, we present an automatic transformation from the SCADE synchronous language into applications for the OASIS safety-oriented real-time execution platform, a multi-scale time-triggered approach. This transformation has been partially implemented and we illustrate it with an industrial case-study from the domain of medium voltage protection relays.