摘要
在分析火电厂输煤程控系统工艺流程和控制需求的基础上,针对输煤系统的特点给出了以S7-300 PLC为系统主站、S7-200 PLC为远程从站,并利用MCGS组态软件在上位机进行实时监测的控制方案。主要由卸煤、堆煤、上煤和配煤部分组成的输煤控制系统,利用上位机组态软件和下位机PLC实现了对整个输煤程控系统运行状况的监控。
Based on analyzing both process and requirements of the programmed control system tor coal conve- ying in the thermal power plant,the scheme of having S7-300 PLC adopted as the system master, S7-200 PLC taken as the system＇ s remote slave station and the MCGS configuration software employed tor the host computer to implement real-time monitoring was proposed. The programmed control system tor the coal conveying which composed of the coal-unloading, coal-ieeding and coal-blending components can monitor the operation of coal conveying system through making use of PC configuration software and lower machine PLC.
作者
樊逸飞
苗荣霞
FAN Yi-fei;MIAO Rong-xia(College of Electronic Information Engineering,Xi＇ an Technological Universit)
出处
《化工自动化及仪表》
CAS
2018年第6期429-433,482,共6页
Control and Instruments in Chemical Industry
关键词
输煤程控
PLC
PROFIBUS-DP
MCGS组态
卸煤
堆煤
上煤
配煤
I/O配制
programmed control system tor coal conveying,PLC,Profibus-DP,MCGS configuration,coal unloading
coal piling
coal supply
coal blending
I/O allocation
