| 張明 周大鵬 王禮平 中南民族大學(xué)電子信息工程學(xué)院（430074） 摘要：論述了利用PLC 的串口通信技術(shù)，實(shí)現(xiàn)上位機(jī)對(duì)溴化鋰制冷機(jī)組的遠(yuǎn)程實(shí)時(shí)監(jiān)控。文中還對(duì)OMRON公司的C200H型PLC的通信協(xié)議進(jìn)行了分析，并介紹了基于VC++的上位機(jī)通信程序設(shè)計(jì)思想。
關(guān)鍵字：PLC，上位機(jī)，溴化鋰制冷機(jī)組，串口通信 Abstract： This paper presents the realization of a successful remote supervisory on a BrLi chiller, by means of RS-232 between PLC and Computer. The communication agreement of the style C200H of OMRON was analysed, and the method of VC++ program design is also introduced.
Keywords：PLC, supervisory computer, BrLi chiller, serial communication |
