The C5-01 is a Motor Controller for stepper motors with open-loop control. It can be operated via clock-direction mode or through specification of the speed or position via the analogue input. In addition, it supports application programs that are directly executed in the motor controller. Programs created in the C++ based programming language NanoJ are executed in the motor controller as machine code. It is synchronized with the digital inputs and outputs via the real-time operating system in 1ms cycles and with the instructions received via the field bus. It is protected against over-temperature, overvoltage (ballast switching) and polarity reversal (fuse required in supply cable).