ESP8266 – 01 Slave Modbus TCP IP (Ethernet) for industrial applications
Introduction to Modbus TCP IP
Modbus TCP IP protocol based communication architectures (TCP / IP) client / server designed for Ethernet communication Industrial controllers PLCs.
Advantages over other Industrial Protocols
1. It is public.
2. Its implementation is easy and requires little development.
3. Manages data blocks without supposing restrictions.
More Information Modbus .. Wikipedia.
I have made the search for examples or functional applications Module ESP8266 – 01
in the industrial field, After testing with PLC controllers via serial Modbus RTU,
Perform module implementation ESP8266 as IP and TCP slave Arduino with SCADA Industrial .
1 1 ESP8266
2 1 Converter FTDI Serial USB
3 1 Regulator de 5 a 3.3v for supply ESP8266