A scalable kit of electronic control units (ECUs) from Bosch Rexroth is designed to satisfy integrated tractor management requirements while increasing overall functionality. The kits include ECUs, application software, and a range of valves. The SRC6-10, SRC36-20, and SRC8-8 central ECUs can electronically reproduce the tractor’s required functions, including transmission management and open- or closed-loop-controlled power take-off. The SRC8-8 central ECU was developed for mid-performance tractors in which small scope I/O functions combine with high computer requirements. It features 16 power outputs and 49 signal inputs. The SRC6-10 operates with a 16-bit controller and facilitates complex vehicle integration. The SRC36-20, with 56 power outputs, is suitable for maximum integration of control functions.