Modbus is a communication protocol used in industrial automation systems to enable data exchange between devices like PLCs, sensors, meters, and controllers.
- Open, simple, and widely adopted protocol
- Supports serial (RTU, ASCII) and Ethernet (TCP/IP) communication
- Master-slave (client-server) architecture
- Used for real-time monitoring and control
- Compatible with SCADA, HMI, and various industrial equipment
- Allows reading/writing of coils, registers, and input values
