General NotesThe Renke RS-FSJT-N01 Wind speed anemometer is sold in four versions:RS485 digital ModBUS output0-5V analog voltage output0-10V analog voltage output4-20mA analog current outputParameters:Measurement range: 0~30m/s, resolution 0.1m/s, accuracy ± 0.3m/sStarting wind speed: 0.5m/sDC power supply: 10~30V DCConfiguration presented here is for the RS485 digital ModBUS version.
WiringThe cable coming out through the bottom of the unit has the folling pinout:Brown: positive power supplyBlack: negative power supply and GNDGreen: RS485-ABlue: RS485-BModBUS ParametersWire up a an RS485 transceiver to an ESP32 to interface with the device using ESPHome’s Modbus Component.
Connection parameters:Baud Rate: 4800 (default), supports 2400 and 9600Data bit length: 8Parity check: None ZTS-3000 Wind Speed Sensor RS485 4-20mA Outdoor Stop bit: 1Device address: 1 ZTS-3000-FSJT-120 ANEMOMETRE A TROIS TASSES ALUMINIUM SONBEST SOTIE 4-20MA en Tunisie | SELI Register address for speed value: 0Register data type: U_WORD, multiplied by 10Basic ConfigurationSlow winds blow in small bursts, so it’s recommended to average measurements to have a better overview of the wind condition. That’s why we’re reading out the measurement every second, and apply a filter to the sensor, taking the maximum blow speed of 5 measurements, averaging them every minute:uart:rx_pin: GPIOXXtx_pin: GPIOXXbaud_rate: 4800modbus:id: modbus1modbus_controller:– id: wind_speed_meteraddress: 1modbus_id: modbus1setup_priority: -10command_throttle: 200msupdate_interval: 1ssensor:– platform: modbus_controllermodbus_controller_id: wind_speed_metername: “Wind speed”device_class: wind_speedregister_type: readaddress: 0 ZKTEco TS3000 - Tripod Turnstile Gate | MySolutions unit_of_measurement: “m/s”value_type: U_WORDaccuracy_decimals: 1filters:– multiply: 0.1– max:window_size: 5send_every: 5– exponential_moving_average:alpha: 0.1send_every: 12Advanced settingsNote that the sensor is by default set to ModBUS address 1, so out of the box it’s not possible to connect it together with another one (like a RS-FXJT-N01 wind direction sensor) to the same ESP UART.
The device modbus address is stored in register 2000. To change it, you can use the following temporary ESPHome configuration:sensor:– platform: modbus_controllermodbus_controller_id: wind_speed_metername: “Device current address”register_type: readaddress: 2000value_type: U_WORDnumber:– platform: modbus_controllermodbus_controller_id: wind_speed_metername: “Device new address”address: 2000register_type: holdingvalue_type: U_WORDmode: boxThe new entered value will be sent to the device immediately, causing it to become offline. You need to change the address value in the corresponding modbus_controller entry to the value you just used.
Alternatively, the manufacturer offers a helper application for Windows, called 485 Parameter Configuration Tool. The sensor can be connected to the PC with a USB-to-RS485 adapter, and the configuration tool makes it easily possible to change the device address to something else (just type it in the Addr box and press Setup button).
Have sameone this Aliexpress 30 m/s rs485 anemometer? What are the registers? Nothing in a box What is the yaml for conversion m/s to km/h After that it becomes possible to simply connect the sensors in parrallel on the same cable, to a single RS485-TTL transceiver attached to a single UART on the ESP.
The device baud rate is configured in register 2001 using an ID:Baud rateID240004800196002 MT3000 Standard Set 120 A Portable Test Meters, Meter Testing - ZERA GmbH 192003 ZTS-3000-FSJT-N01 ANEMOMETRE A TROIS TASSES SONBEST SOTIE RS 485 2532 en Tunisie | SELI 2840045760051152006 The ZTS-3000-FSJT-N01 anemometer sensor was tested with Modbus Poll before deployment. #Hedsidi - YouTube To change it, you can use the following temporary ESPHome configuration:sensor:– platform: modbus_controllermodbus_controller_id: wind_speed_meter ZTS-3000-FSJT-V05 ANEMOMETRE A TROIS TASSES ALUMINIUM SONBEST SOTIE 0-5V en Tunisie | SELI name: “Device current baud ID”register_type: readaddress: 2001value_type: U_WORDnumber: TestEquity: Tektronix FCA3120 Frequency Timer/Counter/Analyzer, 20 GHz, 50 ps, 12 Digit, 1 mV, FCA3100 Series – platform: modbus_controllermodbus_controller_id: wind_speed_metername: “Device new baud ID”address: 2001register_type: holdingvalue_type: U_WORDmode: boxThe new entered value will be sent to the device immediately, causing it to become offline. You need to change the baud_rate value in the corresponding uart entry to the value you just entered.
To avoid accidental address changes, it’s recommended to comment out the above sections, then reflash node with the new settings. Only have one device connected at the time working with these settings.