Acquiring PLC Data Based on OPC Techniques and Ethernet

Abstract

For the purpose to analyze the way to acquire PLC Data based on OPC Techniques and Ethernet, the PLC communication techniques and the OPC techniques based on Ethernet are introduced at first. And then the system framework for PLC data acquisition based on the OPC server is established. Finally, the structure of the data acquisition system about NC machine and the way to acquire PLC data from NC machine are introduced.