Implementation of event-driven fast fourier transform based on IEC 61499

IEC 61499 is a new standard for a distributed system at process industry based on event-driven architecture. Even though the adoption is already wide, implementation on signal processing still just a few indeed could not exist e.g. Fast Fourier Transform (FFT). In this work, FFT is developed based on event-driven architecture. It is implemented the radix-2 FFT and split-radix FFT on IEC 61499 application software, i.e. 4DIAC. As an evaluation of the implementation, an execution time is presented as a measure of performance. The evaluation shows that event-driven based on split-radix FFT show better performance than radix-2 FFT. At length 512 points, split-radix FFT shows fast execution time with a mean value of 6.8 ms. It also has homogeneous execution time with a standard deviation of 2.1 ms and a maximum value of 12 ms.