In traditional automation systems, the tasks are clearly distributed. A programmable logic controller (PLC) links inputs and outputs, and the CNC coordinates the motion of the axes. Today, parts of the drive control are performed by either corresponding PLC functions or special positioning mpdules, or they are delegated to a lower level within the position controller itself as in the case of servo amplifiers. With the advent of local intelligent power electronics, the entire control circuit and the integral profile generator are often embedded in the drive. Units such as these are now only parameterized by the higher-level control system, and usually receive their jobs via a field bus.
In contrast, other systems feature central control systems that assume the power control of the individual drives. In these cases, it is essential to have a fast bus connection between the power and monitoring sections and the control system, which is connected to a high-performance computer.

The strength of a motion control system stands and falls with the performance, flexibility, and scope of functions offered. In particular, the convenient, simplified handling of the software blocks that control the drive technology is a key advantage. Sophisticated, specialized motions, whose direct programming would be highly intricate in the DIN language of CNC, can be easily realized by using function blocks. In such cases, operator control is simplified and more understandable, especially if the necessary communication between function blocks takes place in the background, without involving the user.