A scheduler for SCADA-based multi-source fusion systems

•Multi-way rendez vouses help implement multi-source information source systems.•Schedulers must give rendez-vouses fair opportunities to be executed.•Designing a scheduler for SCADA systems that run on low-end hardware is challenging.•We present such a scheduler and prove that it is correct, complete, and efficient.•We have put our scheduler to practice in a solar power plant.