CAJ | 학술논문

为了将单片机加入到SIEMENSS7—200系列PLC的PPI（点对点协议）通信网络中，就需要分析PPI通信协议格式。本文利用CommMonitor6．0（串口监视精灵）工具，监控PLC与PLC之间的通信，通过总结分析出其数据格式，然后编写相应的单片机C51程序，使PLC能够使用NetR／NetW（网络读写命令）与单片机进行数据交换。
위료장단편궤가입도SIEMENSS7—200계렬PLC적PPI（점대점협의）통신망락중，취수요분석PPI통신협의격식。본문이용CommMonitor6．0（천구감시정령）공구，감공PLC여PLC지간적통신，통과총결분석출기수거격식，연후편사상응적단편궤C51정서，사PLC능구사용NetR／NetW（망락독사명령）여단편궤진행수거교환。
In order to add single chip to the SIEMENS $7-200 series PLC PPI（point to point protocol） communication network, if needs to analyse the PPI communication protocol format. The paper uses CommMontior6.0 to monitor the communication between PLCs, analyzes the data formats, then writes the corresponding C51 program. It achieves the communication between single chip and PLC using NetR/NetW.