Software Technology Links Motion Control to PC-based System

摘要

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 modules, 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.