Development of Profibus-PA fieldbus interface module
Fang Zhen-yu · Electronic Instrumentation Customers · 2007
Combined with Profibus-PA domestic designing actuality and the contrast between protocol chip DPC31 and SPC4,the realization adopting protocol chip DPC31 and SIM1 is proposed. In the software designing of PA slave, the paper analyzes the work mechanism of PA master and slave, and the process of data exchanging.