Modbus gateway for Wind-solar-UV monitoring

The KTL-249 Modbus weather monitoring interface can monitor UV, solar radiation, wind speed and direction, and temperature. It can monitor UV sensors, pyranometers, and anemometers designed for the Davis Instruments Vantage Pro2 station, without requiring a complete weather station.   In addition, additional inputs are included to monitor signals with 0-20 mA output or battery voltage up to 30 VDC, as well as Maxim/Dallas DS18S20 1-wire temperature sensors. This model has a built-in backlit LCD display.   Settings are defined using the Modbus protocol (see operating instructions).  

Advantages 

• Compatible with sensors with 0-20 mA / 4-20 mA output and the Maxim/Dallas DS18S20 1-wire temperature sensor
• Compatible with Davis Instruments 6450 pyranometer, 7911 anemometer, 6490 UV sensor
• Readings stored in Modbus Maintenance Registers (MR)
• Communication via RS232 and RS485 port connection
• Backlit LCD display

Technical specifications

Monitoring

• Measurement types: Solar radiation, Ultraviolet radiation (UV), Wind speed, Wind direction, Temperature
• Measurement units: User defined: mph, km/h, knots, m/s, degrees, degrees Celsius, W/m2, UV Index
• Associated holding registers: 1-7

Communications

• Connection types: RS232, RS485
• Baud Rate: User defined: 1200, 2400, 4800, 9600, 19200, 38400, 57600
• Modbus address: 0-247
• Associated Holding Registers: Address: 18, Baud Rate: 19, Parity: 20

LCD display

• Display cycle: Solar radiation, Ultraviolet radiation, Wind speed, Wind direction, Temperature
• Backlight duration: User defined: 0-255 seconds
• Cycle Time: User defined: 0-255 seconds
• Associated Hold Registers: 8-9