精准出铝控制无线调试系统设计与实现

Precise Control of Aluminum Wireless Debugging System Design and Implementation

精准出铝作业控制系统中控制器控制参数的现场调试是一项复杂耗时的工作,需要根据现场的情况反复修改控制参数以达到精准控制的效果;为了简化调试过程,缩短调试周期,针对控制系统使用的S7-200PLC控制器,基于无线通信技术和Moudbus通信协议,设计了一种无线调试系统,通过对称重上下限、出铝计重偏离判断、关风上下限、异常关风补偿量等PLC参数进行动态调整,实现了对系统控制部分的调试及维护;实际现场测试,结果表明该调试系统具有良好的可靠性和实用性,在保证出铝的精准控制的同时有效降低了系统功耗。

The process of optimizing parameters on controller depends on effective communication mode on precision aluminum operations control system. The parameters of controller need to be modified by many times. In order to symplify the debugging process, shorten debugging period, this paper designs an wireless system which has graphical interface to control and maintenance the operating system. This system is geared to the need of S7-200PLC which is used in the system, and Modbus protocol in the wireless way. Through the PLC parameters like the upper and lower limit of weigh, the judgment of produced aluminum weight calculation deviation, the upper and lower limit of closing wind and abnormal closing wind compensation dosage to make status adjustment, realize the debugging and maintenance to the system control part. As the result of spot test shows, this handled equipment has good reliability and practicality. It reduce the power consumption of the system effectively while the precise control of aluminum.