Case study of a winery with a labelling line and a wine cellar controlled by four Arduino based M-Duino PLCs on one network: a master and three slaves that talk over LoRa, Ethernet, RS-485, Bluetooth and I2C. Relays switch the belts and the cellar climate, the labelling machine is read over RS-485, the laser engraver is reached over Bluetooth, and a Panel PC shows the whole process.

The PDF covers the challenge, the three loops (the network, the line, the cellar), the system architecture with the signal list and the hardware used. Interactive version: winery labelling and storage PLC network case study online.