3. 通讯网络速度快,距离远,可靠性高; 4. 界面直观友好,操作简便,功能齐全。人机界面不仅具有形象逼真的动态画面和全中文显示,还具有实时报警监视、安全确认机制和数据记录功能; 5. 减少布线成本,由于采用远距离通讯网络,使布线更加方便,并大大减少电缆用量; 6. 维护方便,运行费用低。系统扩展方便,可随时增加节点,并可通过网络由中控室在线修 改程序。控制器和网络可靠性高,维护工作量小; 7. 总结各矿胶带运输系统的经验教训,特别采取了增加设备可靠性的措施,如选用先进可靠的控制器和网络产品。 Use Of PLC In Central Control System for Belt Conveyor of Coal Mine ABSTRACT This paper introduces a central control system for belt conveyor of coal mine. It includes PLC stations and main PLC station, which connected through CC-LINK network. It controls equipments of conveyor system on CRT, and gets good effect of higher productivity, less operators and higher security. KEY WORDS PLC, central control system, belt conveyor |