TSXP57103M 可编程控制器是计算机技术与自动化控制技术相结合而开发的一种适用工业环境的新型通用自动控制装置,是作为传统继电器的替换产品而出现的。随着微电子技术和计算机技术的迅猛发展,可编程控制器更多地具有了计算机的功能,不仅能实现逻辑控制,还具有了数据处理、通信、网络等功能。由于它可通过软件来改变控制过程,而且具有体积小、组装维护方便、编程简单、可靠性高、抗干扰能力强等特点,已广泛应用于工业控制的各个领域,大大推进了机电一体化的进程。
电梯是高层建筑不可缺少的运输工具,用于垂直运送乘客和货物,传统的电梯控制系统主要采用继电器--接触器进行控制,其缺点是触点多,故障率高、可靠性差、维修工作量大等,而采用 PLC组成的控制系统可以很好地解决上述问题,使电梯运行更加方便、舒适。目前在电梯行业已得到广泛应用。在层数和控制功能较少的场合,采用PLC控制较为有利。
1、可编程控制器(PLC)
可编程逻辑控制器是一种小型可操作逻辑运算、顺序控制、计数、定时等程序,通过数字或模拟量输入、输出控制各种预期要实现的过程或结果的装置。可编程控制器(PLC)是继电器和计算机控制的结合体,是有效地把自动化技术、计算机技术和通信技术融为一体的新型工业自动化控制装置,目前广泛应用于各种场合中的检测、监控和控制的自动化过程中,也可以用于各种大型控制复杂的机电一体化设备中,包括自动扶梯、电梯、机床、民用设施以及环境保护设施等。
TSXP57103M
TSXP57103M
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