Product Description
The KTA-382 is the latest generation Modbus Weather Station Gateway, designed to connect Davis Vantage Pro2 and Vantage Vue weather stations directly into industrial control systems. Whether you’re running a PLC, RTU, or SCADA platform, this gateway makes it simple to integrate real-time weather data into your operations. Key Features:
- Dual Modbus RTU ports (RS485/232) plus Ethernet & Wi-Fi Modbus TCP/IP support
- Connects with up to 5 simultaneous Modbus TCP masters and 2 RTU masters
- Compatible with all popular Davis systems, including Vantage Pro2, Pro2 Plus, Fan-Aspirated, and Vantage Vue
- Provides over 120 weather data registers including wind, temperature, humidity, rainfall, solar, UV, soil moisture, and leaf wetness
- Built-in cloud upload (Weather Underground by default; custom cloud services available)
- Easy configuration via web interface or desktop application
What’s New vs. KTA-282:
- Additional serial RTU port for simultaneous polling
- Full support for LOOP1, LOOP2 and HILOWS commands
- Wi-Fi and Ethernet TCP polling at the same time
- Ability to configure a weather station directly via the gateway
- Logging and PoE variants available
Typical Applications:
- Agriculture & Horticulture – optimise irrigation and frost protection using soil, leaf, and weather data.
- Construction & Site Safety – trigger automated wind-speed or rain alarms for crane and worksite safety.
- Remote Property Owners – monitor weather at second homes or lodges.
- Weather Enthusiasts & Hobbyists – expand Davis stations into advanced monitoring and automation projects.
Device Compatibility
- Vantage Vue and Pro2 older non-touchscreen consoles
- Weather Envoy (wired & wireless)
Interfaces & Protocols
- 2 × Modbus RTU (RS-232 / RS-485) ports
- Modbus TCP/IP over Ethernet
- Modbus TCP/IP over Wi-Fi
- Supports up to 5 TCP masters and 2 RTU masters simultaneously
Configuration & Control
- Setup via web interface or PC desktop application
- Direct weather station configuration through gateway
- Unit conversion: metric/imperial for wind, rain, temperature, pressure
- Factory reset function
Data & Registers
- Over 120 weather data registers supported
- LOOP1, LOOP2 and Hi/Low (HILOWS) command support
- Weather variables: wind speed/direction, temperature, humidity, rainfall, barometer, solar radiation, UV, soil moisture, leaf wetness, evapotranspiration, sunrise/sunset times, forecast icons, etc.
Connectivity
- Ethernet: Static/DHCP configurable
- Wi-Fi: Access Point mode (KTA382_xxxx), configurable via web
- USB-C for power/configuration
- DE-9 connector for Davis WeatherLink cable
Power Requirements
- 9–36 VDC input via VIN/GND
- USB-C power option
Additional Features
- Built-in cloud upload (Weather Underground by default; custom firmware available for other services)
- Digital I/O (open-collector outputs, alarm triggers configurable by register thresholds)
- LED indicators for port communication, station connection, and status
