PROFIBUS Communication Based on SIEMENS EM277
Shao Qi-feng · Journal of Zhongyuan University of Technology · 2008
This paper discusses PROFIBUS communication technology based on SIEMENS EM277 regarding the ways of industry communication between SIEMENS S7-200 and S7-300,introduces the STEP7 connection configuration,analyzes a real communication program,presents a high cost performance way of industry communication.