Power control device for PV installations via OSD using SUNSPEC protocol

WiFi Integrator is a device designed for the integration and control of photovoltaic micro-installations, allowing remote control of active power generation and monitoring of inverter operation, including those not supporting the SUNSPEC protocol. The device communicates via two RS-485 ports and wirelessly via WiFi, with control executed through three potential-free relay outputs.

The manufacturer of the device is Elfabric sp. z o.o. The delivery includes the SUNintegrator module, a complete set of plugs, and a 5V DC DIN rail power supply. The device works with the PVmonitor.pl portal, enabling remote monitoring of micro-installations.

Electrical and Communication Parameters

• Serial transmission: two built-in RS-485 communication ports
• Supported SUNSPEC protocol models: 100, 103 (W, W_SF), 123 (Conn)
• Wireless transmission: WiFi 802.11 b/g/n
• Supported protocols: SUNSPEC, Modbus-RTU, Modbus-TCP, HTTP and others (e.g. FoxEss)
• Direct reading capability: data from dozens of types of inverters and meters
• Communication ports: 1x RS-485 (port A, SUNSPEC communication, operates in Modbus-RTU slave mode), 1x RS-485 (port B, monitoring and data reading, operates in Modbus-RTU master mode)
• Control outputs: 3 potential-free relay outputs for controlling inverter operation
• Power supply: 5 V DC, 1 A
• Maximum power consumption: 5 W

Mechanical and Environmental Parameters

• Mounting: on DIN TH35 rail, occupies 3 TE modules
• Dimensions: length (including plugs) 112 mm, width 52.5 mm, height 65 mm
• Enclosure material: ABS V0
• Operating temperature range: from -25°C to +55°C
• Humidity: relative < 90% without condensation
• Protection degree: IP20