Shelly PRO Modbus Add-on RS485
An RS485 communication add-on for Shelly PRO devices, designed for integration with building and energy management systems.
Direct attachment enables data exchange with external controllers and platforms.
Direct attachment enables data exchange with external controllers and platforms.
This is an expansion add-on and not a standalone device. It requires a compatible Shelly PRO device to operate: Shelly PRO EM-50, Shelly PRO 3EM 120 A, Shelly PRO 3EM-400, Shelly PRO 1, or Shelly PRO 2.
Key Features
Standard Modbus integration with BMS, EMS, SCADA, and PLC systems
Direct plug-in to compatible Shelly PRO devices via expansion port
RS485 wired communication for stable long-distance connectivity and multi-device networks (up to 32 nodes)
Modbus Client mode for reading data from meters, inverters, HVAC, and external controllers without custom gateways
Modbus Server mode for sharing device data and status with BMS, EMS, SCADA, and monitoring platforms
Half-duplex operation for reliable data exchange at speeds up to 10 Mbps over distances of up to 50 m outdoors (depending on local conditions)
Low power consumption under 1 W, powered via 3.3V or 12V from the host device
Wide environmental range, operating from -20°C to 40°C with 30 - 70% humidity, up to 2000 m altitude
App-based configuration via Shelly Smart Control for quick setup and management
Hybrid wired and wireless ecosystem combining RS485 infrastructure with Shelly cloud and APIs
DIN-rail-ready design for secure installation inside electrical panels
Standard Modbus integration with BMS, EMS, SCADA, and PLC systems
Direct plug-in to compatible Shelly PRO devices via expansion port
RS485 wired communication for stable long-distance connectivity and multi-device networks (up to 32 nodes)
Modbus Client mode for reading data from meters, inverters, HVAC, and external controllers without custom gateways
Modbus Server mode for sharing device data and status with BMS, EMS, SCADA, and monitoring platforms
Half-duplex operation for reliable data exchange at speeds up to 10 Mbps over distances of up to 50 m outdoors (depending on local conditions)
Low power consumption under 1 W, powered via 3.3V or 12V from the host device
Wide environmental range, operating from -20°C to 40°C with 30 - 70% humidity, up to 2000 m altitude
App-based configuration via Shelly Smart Control for quick setup and management
Hybrid wired and wireless ecosystem combining RS485 infrastructure with Shelly cloud and APIs
DIN-rail-ready design for secure installation inside electrical panels