張明 周大鵬 王禮平 中南民族大學電子信息工程學院(430074) 摘要:論述了利用PLC 的串口通信技術,實現上位機對溴化鋰制冷機組的遠程實時監控。文中還對OMRON公司的C200H型PLC的通信協議進行了分析,并介紹了基于VC++的上位機通信程序設計思想。 關鍵字:PLC,上位機,溴化鋰制冷機組,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 |