Lambrecht ARCO-Modbus Manual
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Lambrecht ARCO-Modbus Manual

Combined wind sensor
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Combined Wind Sensor ARCO-Modbus
ARCO-Modbus · Features and Advantages
▪
Compact and extremely robust wind sensor for measuring
wind direction and wind speed
▪
Friction-free measurement value acquisition through non-
contact measuring principle
▪
Highest reliability by means of precision ball bearings and
high quality measuring elements
▪
Seawater resistant surface fi nishes for high durability
▪
Low starting value of 0.3 m/s
▪
Very large measuring range from 0.3 to 75 m/s
▪
Quick and easy installation by pipe mounting and M12 plug
connector
(14581) ARCO-Modbus
▪
Integrated, regulated heater for optimal heating of the
sensor heads
▪
Thermal separation between sensor heads and the hous-
ing
▪
Changeable wind vane and three-armed cup anemom-
eter
▪
Sensor head with integrated obstacles prevents infi ltra-
tion of water
▪
Digital output (RS 485 - Modbus RTU)
▪
The compact design of the sensor reduces the eff ort with
regard to components and their mounting times upon
comparison with single instruments
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  • Page 1 Manual Combined Wind Sensor ARCO-Modbus ARCO-Modbus · Features and Advantages ▪ Compact and extremely robust wind sensor for measuring ▪ Integrated, regulated heater for optimal heating of the wind direction and wind speed sensor heads ▪ Friction-free measurement value acquisition through non- ▪...

  • Page 2: Installation Conditions

    All work can be carried out with standard tools available in a regular workshop. Due to their shock and vibration proof construction the sensors ARCO-Modbus are particularly qualifi ed for use under severe Unpacking the sensor environmental conditions. The housing and the measuring elements are made of seawater resistant aluminium alloys.
  • Page 3 Manual Combined Wind Sensor ARCO-Modbus Mounting the cup rotor on to the wind 2.8.1 Alignment of wind vane speed sensor For wind direction measurements the north mark on the sen- The bores at the cup rotor are provided in such a way that the sor must be aligned with the geographical north direction.

  • Page 4: Maintenance

    In case you should be faced with any specifi c problems, which The external connection is carried out via a central connec- you are unable to solve, please contact the LAMBRECHT tor which is located in the housing base. For further details meteo service: about the electrical connection please see section "Electrical...
  • Page 5 Manual Combined Wind Sensor ARCO-Modbus Dimensional drawing ARCO-Modbus (14581) ARCO-Modbus Manual...
  • Page 6 Manual Combined Wind Sensor ARCO-Modbus Electrical connection ARCO-Modbus (14581) ARCO-Modbus Manual...

  • Page 7: Modbus Protocol

    "most signifi cant byte" is sent fi rst. For values that go beyond one register (e.g. 32 bit) this is not clearly specifi ed for the Modbus. In these cases (32 bit or 64 bit) the LAMBRECHT Modbus sensors follow the big-endian number format.
  • Page 8 The registers addresses 30001 to 35000 apply to all LAMBRECHT meteo Modbus sensors, but are only available or valid if the respective sensor supports the corresponding values (e.g. a pure temperature sensor does not provide any wind speed)..

  • Page 9: Auto Configuration

    46001 to 49000 can only be read out as a block! The length of the block or the number of available mapping registers is in holding register 46000. Since the addresses from the range 30001 to 35000 apply to all LAMBRECHT sensors, an address from this range is also representative of a measured value type.
  • Page 10 Manual Combined Wind Sensor ARCO-Modbus 31591 Global radiation W/m² 2 decimal places LONG 0x04 Big-Endian instantaneous values WORD Registers 31591 + 31592 can (High-WORD) only be read out together (uncompensated) (function code 0x04) 31592 Global radiation 0x04 Big-Endian instantaneous values...
  • Page 11 Measuring range: 0.3...75 m/s non-liability. Changes to system components require express written permission from LAMBRECHT meteo Accuracy: ± 2 % FS at 0.3...50 m/s GmbH. These activities must be performed by a qualifi ed Resolution: <...

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