基于Modbus-RTU的花卉育种温室灌溉控制系统设计  

Design of irrigation control system for flower greenhouse based on Modbus-RTU

作　　者：盛强[1] SHENG Qiang(Huzhou Vocational&Technical College,Huzhou 313000,Zhejiang,China)

机构地区：[1]湖州职业技术学院,浙江湖州313000

出　　处：《湖北农业科学》2020年第12期164-166,170,共4页Hubei Agricultural Sciences

基　　金：湖州市科技特派员项目(2017KT21)。

摘　　要：针对花卉对按需灌溉和生长环境的需求及PLC模拟量输入、输出模块数量有限等缺点,设计了基于西门子S7-200 SMART系列PLC为核心的灌溉控制系统。该控制系统利用Modbus-RTU通信,采用轮询的方式采集变频器、土壤温湿度、空气温湿度、光照度及土壤电导率等参数,控制变频器运行频率实现对花卉的按需灌溉,并利用工业以太网把相关参数上传至MCGS触摸屏进行精细化管理。Aiming at the demand of flowers for on-demand irrigation and growth environment and the limited number of analog input and output modules of PLCs,design an irrigation control system based on Siemens S7-200 SMART series PLC.The control system uses Modbus-RTU communication,collects environmental parameters such as inverter,soil and air temperatures and humidities,illumination and soil conductivity,and control the frequency of inverter to realize on-demand irrigation of flowers,and uploads related parameters to MCGS touch screen by industrial Ethernet for fine management.

关 键 词：Modbus-RTU 灌溉 PLC 温湿度 光照度 电导率 

分 类 号：F301[经济管理—产业经济]