摘要
PLC是工业上广泛使用的控制单元,具有编程简单、功能强大、运行可靠等优点。而触摸屏是工业上常用的人机界面,具有界面直观、操作方便、工作稳定等特点,能较好地实现人机交付的功能。主要探讨了一种基于PLC的自动控制系统,用于对脉冲电场的自动控制。首先,描述了设备的工作过程,根据工作过程对设备的控制系统进行了详细的功能规划。然后,结合系统要实现的功能设计了系统的硬件结构,选择PLC作为系统的控制核心,同时选择触摸屏与PLC配合,实现良好的人机交付。最后,设计了触摸屏的操作界面和PLC的控制程序。整个系统结构简单,工作可靠,调整方便,能较好地满足使用要求。
PLC is a control unit which is widely used in industry with the characteristics of simple programming,powerful controlling function and reliable running.While touching screen is a human machine interface applied commonly in industry with characteristics of visualized interface,simple operation and high working stability so that man-machine delivery is achieved.An automatic control system based on PLC for pulse electric field was discussed.At first,the machine working process was stated and the function plan was made for this controlling system based on the process.Then the hardware was designed based on the controlling function with PLC being used as the controlling kernel.Moreover,the touching screen was used to realize the good information exchange between the machine and human.At the end,the operation interface of touching screen and the control procedure of PLC were designed.The whole system is simple in structure,high in working stability and convenient in adjustment that can meet the operating requirement well.
出处
《机械设计与制造》
北大核心
2012年第4期127-129,共3页
Machinery Design & Manufacture
