嵌入式PLC软硬件设计技术研究

Research on Design Technology of Embedded PLC Hardware and Software

近年来,可编程控制器在工业控制领域的应用越来越广泛,但与此同时,传统可编程控制器的一些缺点和不足也愈加明显,例如对新设备兼容性差,无法实现高速计算以及通讯薄弱等。因此,需要一种新技术来满足工业控制领域新的需求,一种被称作软PLC的技术进入人们的视线,由于它采用软件在传统PC设备上模拟PLC,无法像传统PLC设备一样长久稳定、高效地运行。嵌入式PLC结合了传统PLC和软PLC的优势,在提升了PLC的运算能力的同时,极大地发挥了梯形图和开源结构的优势,形成了控制领域的一种通用平台结构。

At present, the PLC has been widely used in the industry area. But the disadvantage of this controller appears along withthe development of the industry equipment. Such as worse compatibility cooperate with the new equipment, poor satisfaction of thehigh calculation and weak communication and so on. Thus, there need new technology to satisfy the increasing industry require-ments. The soft PLC comes into the world from on kind of condition. The function of PLC is imitated through software on the PCplatform. But the soft PLC has shortage also. The sturdiness and instantaneity is worse than the traditional PLC. Therefore, the em-bedded PLC combines the advantages of traditional PLC and soft PLC, increase the computing power, express the advantages ofladder diagram and open construction to bring a universal platform to the controlled members.