如何扩展可编程控制器的输入输出量

• 作 者: 苏源光
• 机 构: 佛山市商业机械厂,
• 出 处: 建筑机械化
• 发表日期: 1989年07期
• 关键词: 可编程控制器 输入输出 工业控制器 运行试验 梯形图 日本三菱 控制集 输出点 行译码 信号输入

可编程控制器(以下简称PC)是介于微机和继电器之间的一种新型的工业控制器,具有体积小、可靠性高,抗干扰能力强等优点,所以很多地方都用上了它。我厂去年开始用PC机来控制集选客梯,经过一年的运行试验,性能稳定,效果令人满意。但是由于PC机的输入输出接点是有限的,特别是大楼的层数越多,这个矛盾越突出,输入输出点就越不够用。以日本三菱生产的PC F_1-60型号为例,主机只能带五个扩展。如果每一个扩展都是20点,那么连主机

Programmable controller (hereinafter referred to as PC) is between the microcomputer and the relay between a new type of industrial controller, has the advantages of small size, high reliability, anti-interference ability, so it is used in many places. Last year, I started using PC machines to control the election passenger ladder, after a year of running tests, stable performance, the effect is satisfactory. However, due to the PC input and output contacts are limited, especially the number of floors of the building, the more prominent the contradiction between the more the input and output points less. Take the PC F_1-60 model manufactured by Japan’s Mitsubishi for example, the host can only take five extensions. If each extension is 20 points, then even the host