PLC的出现淘汰了传统的继电器顺序控制器,使自动控制技术跃上新台阶。80年代出现的用微机和复杂电路连接起来的“人机界面”,虽然增加了透明度,但必须使用一台微机和大量硬件,操作不便,编程困难,一般操作人员难以掌握。 90年代中期,台湾和可公司推出Easy View触控屏幕PLC图形监控器,圆满地解决了这个问题。它增加了PLC的透明度,使自动化系统更趋完善,效率更高,质量更好。 PLC监控器有三大功能: (1)能实时监视PLC各接点和寄存器的状态,在屏幕上能形象地看到各控制点的状态和运行中的具 The emergence of PLC eliminated the traditional relay sequence controller, so that automatic control technology to a new level. The “man-machine interface” connected by a microcomputer and a complicated circuit appearing in the 1980s, while increasing the transparency, must use a microcomputer and a large amount of hardware. The operation is inconvenient, the programming is difficult, and the general operator is hard to grasp. The mid 90’s, Taiwan and the company introduced Easy View touch screen PLC graphics monitor, a successful solution to this problem. It increases the transparency of the PLC, making the automation system more sophisticated, more efficient and of better quality. PLC monitor has three major functions: (1) PLC contacts and registers can be real-time monitoring of the state on the screen to see the status of each control point and the operation of a