In order to reduce industrial control costs and improve the flexibility of data communication and human-machine interaction interface development for Rockwell series PLC,a method based on Python for Pylogix driver program to communicate with Rockwell series PLC via Ethernet is proposed.By conducting various data types of read and write tests on Rockwell series 1756-L71,it is possible to read and write labels inside the PLC without the need for Rockwell series industrial control software,achieving the purpose of remote communication and control,reduce system development costs,improve the flexibility of development systems and equipment performance,in order to meet the current demand for device computing capabilities in the development of automation.
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