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提升机是矿山重要设备,为满足其高可靠性、高安全性要求,应建立以网络为连接纽带的多PLC冗余控制系统,用于完成提升机行程控制、逻辑操作和故障保护、液压制动控制以及装卸载自动控制等。以西门子S7-300 PLC为基础,构建了经济高效的MPI网络,实现了多个PLC站点之间全局数据传输,有效节约了硬件接线,减少了系统维护量,提高了矿井提升系统的稳定性和运行效率。
Elevator is an important mine equipment, in order to meet the requirements of its high reliability and high safety, it is necessary to establish a multi-PLC redundant control system with network as a link to complete the lift stroke control, logic operation and fault protection, hydraulic Motion control and loading and unloading automatic control. Based on SIEMENS S7-300 PLC, a cost-effective MPI network is constructed to realize the global data transmission among multiple PLC stations, effectively saving the hardware wiring, reducing the system maintenance, and improving the stability of the mine hoisting system. operating efficiency.