EDWartens is the global training division of Wartens, delivering world-class education in Physical AI (PLC, SCADA, Robotics, HMI, VFD, DCS, IIoT) and Digital AI (Machine Learning, Deep Learning, Computer Vision, GenAI, LLMs) across India, UK, UAE, and USA. Over 30,000 engineers have been trained with a 95% placement rate.

Where are EDWartens training centers located?

EDWartens has training centers in Bangalore (India), Milton Keynes (UK), Dover, Delaware (USA), and Abu Dhabi (UAE). The global headquarters is at 8 Lyon Road, Milton Keynes, MK1 1EX, United Kingdom.

What PLC training courses does EDWartens offer?

EDWartens offers comprehensive PLC training covering Siemens (S7-1200, S7-1500, TIA Portal), Allen Bradley (Studio 5000, ControlLogix, CompactLogix), Mitsubishi, Delta, and Omron PLCs. Courses include ladder logic, structured text, function block diagrams, and real hardware labs.

What is Physical AI and Digital AI?

Physical AI refers to automation technologies like PLC, SCADA, HMI, Robotics, VFD, DCS, and IIoT, the systems that control physical machines and manufacturing. Digital AI refers to artificial intelligence technologies like Machine Learning, Deep Learning, Computer Vision, GenAI, and LLMs, the intelligence layer. EDWartens trains engineers in both.

Does EDWartens provide placement assistance?

Yes. EDWartens has a 95% placement rate. The Wartens ecosystem includes Oscabe (AI recruitment platform) and 3BOX AI (AI careers platform) which actively place trained engineers in automation and AI roles globally.

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Physical AI

22 January 2026

9 min read

Modbus Communication Protocol: Complete Tutorial for PLC and SCADA Engineers

Master Modbus RTU and Modbus TCP/IP, register types, function codes, addressing, and practical implementation with PLCs.

ModbusModbus TCPModbus RTUcommunication protocolPLC communication

Modbus is the most widely used communication protocol in industrial automation. Despite being developed in 1979, it remains essential due to its simplicity and reliability.

Modbus Variants

-Modbus RTU, Serial communication (RS-485)
-Modbus TCP/IP, Ethernet-based communication
-Modbus ASCII, Serial with ASCII encoding (rarely used)

EDWartens PLC training includes comprehensive coverage of Modbus and other industrial protocols including PROFINET, EtherNet/IP, and OPC UA.

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EDWartens offers world-class Physical AI training across 4 countries.

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Modbus Communication Protocol: Complete Tutorial for PLC and SCADA Engineers

Modbus Variants

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