【摘要】 为提高焦化备煤控制的自动化水平,设计了一套IPC+PLC模式的备煤自动控制系统。系统主要采用现场总线技术、PLC控制和组态技术。下位PLC在step编程环境下实现设备联锁、料线互锁的交叉复杂过程控制及故障处理,上位工控机应用组态编程为用户提供友好人机界面。与传统继电器组成的控制系统相比,本系统操作简单、维护方便,且能适应恶劣的工作环境。实践运行表明,系统性能稳定,生产效率高,具有良好经济效益。更多还原

【Abstract】 An standby-coal automatic control system is designed by adopting field-bus technique, PLC and configuration technique to improve the automatic level of standby-coal process. The cross complex process control and fault processing are implanted by PLC, and configuration program provides friendly interface to user. Compared with traditional relay control system, this system has advan-tages of simplified operation, convenient maintenance and good adaptability. Practical production shows that this system has the char-acteristic of steady performance, high efficiency and economical benefit.更多还原