摘要
论述在PLC系统中 ,人机界面的多位数字设定值 ,如何实时读入到计算机数据区。介绍在PLC程序支持下 ,用多组拨码开关并联输入来实现这一目的。介绍读入单元的硬件及软件设计思路 ,并列举设计实例及应用。
This paper introduces how to set the multichannel data of human machine interface and get the real time data from computer. The particular requivement can be achieved by using the parallel input of multichannel thumbwheels under the support of PLC program.Moveover the thinking of the design and a applicable example are given.
出处
《电工技术杂志》
2001年第9期22-24,共3页
Electrotechnical Journal
