125MN挤压机操纵系统网络控制的实现  

Realization of network control on 125MN extruder control system

作　　者：谭建平[1] 汪顺民[1] 周俊峰[1] 

机构地区：[1]中南大学机电工程学院,湖南长沙410083

出　　处：《锻压技术》2008年第6期103-106,共4页Forging & Stamping Technology

摘　　要：125 MN挤压机原有系统控制方式落后、自动化程度低、响应速度慢、可靠性低。将原有控制系统结构改造成基于PROFIBUS-DP的现场总线控制系统。根据控制系统规模,PROFIBUS-DP网络采用单主站系统、主站-从站结构。DP从站的配置有分布式I/O和智能DP从站两种实现方式,综合考虑成本和实际功能需求,选用智能DP从站方式。通过在PLC和WinCC中编程,实现了网络通信的状态监控。实践表明,在满足通信实时快速性的同时,所配置的控制网络经济、稳定、可靠。The original system of a 125 MN extruder was of backward control mode, low automation level, slow response speed and low reliability. The original control system structure was changed into fieldbus control system （FCS） based on PROFIBUS-DP. According to control system scale, single master station system and master station-slave station structure were applied in PROFIBUS-DP network. Configuration of DP slave station had two realization modes： distribute I/O and intelligent DP. Synthetically considering cost and practical function demands, intelligent DP slave station mode was chosen. State monitor of network communication was realized through programming on PLC and WinCC. Practice indicates that the control network configured is stable, reliable and economical, which can meet the request of reabtime communication.

关 键 词：挤压机 控制网络 PROFIBUS-DP网络通信诊断 

分 类 号：TG375[金属学及工艺—金属压力加工]