介绍了一套以 PLC 为核心,以变频电机为执行元件,以触摸屏为人机界面的液体袋装包装机控制系统的设计方案。 该系统通过 RS-485 通信实现驱动单元的远程控制,提高了系统的集成度与可靠性;确保了包装定位以及灌装物料的精确,实现了袋长和袋速的实时检测,现场使用中稳定可靠。

A set of liquid bag packaging control system design scheme was introduced, in which PLC was applied as the control core, frequency conversion motor for the implementation of components, and programmable operation display as HMI. RS-485 communication was used to achieve remote control to drive unit, which improved the system integration and reliability. The system guarantees the bag transporting location and liquid filling accurately. It realizes real time detection of length and speed. It can be stably and reliably used in field