英语翻译
On automation system one can find three basic components mentioned before,plus a logic circuit that controls the system.An adequate technique is needed to project the logic circuit and integrate all the necessary components to execute the sequence of movements properly.For a simple direct sequence of movement an intuitive method can be used [1,5],but for indirect or more complex sequences the intuition can generate a very complicated circuit and signal mistakes.It is necessary to use another method that can save time of the project,make a clean circuit,can eliminate occasional signal overlapping and redundant circuits.The presented method is called step-by-step or algorithmic [1,5],it is valid for pneumatic and electro-pneumatic systems and it was used as a base in this work.The method consists of designing the systems based on standard circuits made for each change on the state of the actuators,these changes are called steps.