基于混合式网络结构的控制系统设计及应用

针对太钢原有原料场自动控制系统网络经常无规律性地发生中断故障的现象以及太钢不锈钢工程建设的需要,设计了基于施耐德Quantum系列PLC混合式网络结构的自动控制系统。介绍了该系统的组成,阐述了基于S908协议的同轴电缆网络和基于Modbus Plug协议的光纤网络的设计过程,开发了基于积分分离和斜率逻辑判断功能的智能PID预配料控制算法。现场运行结果表明,该系统运行稳定,自动化程度高,维护方便,解决了原系统网络无规律性地发生中断的问题,从而确保生产正常运行。该系统的成功应用,对同行业的生产进步将起到示范和推动作用。

Design and Application of Control System Based on Composite Network Architecture

To the irregular interrupt malfunction phenomena of the foregone automation system network of the raw material field and the needs of the stainless steel engineering of Taigang,the automatic control system is designed based on the composite network architecture of Schneider Quantum series PLC.The composition of the system is introduced,and the design processes of the coaxial-cable network based on S908 protocol and the optical fiber cable network based on Modbus Plug protocol are presented.The intelligent PID control algorithm for compounding material beforehand based on the function of integral separating and slope rate logic judgement is developed.The field running status shows that the system has features of stable running,high automation grade,convenient operation and little maintenance,and that the irregular interrupt malfunction of the foregone system network is solved.Therefore production is running in an orderly way.The system will promote demonstration and impulse function to production advancement of the same trade.