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Anemometer
English
PCE-WS RS485 MODBUS
PCE-WS range of PCE Instruments
Wind Speed sensor designed for dierent industries and sector
PCE-WS RS485 is a digital output
anemometer, with RS485 Modbus
communication.
Last change: 07 November 2019 v1.0 English
© PCE Instruments
Industrial design for extreme environments
RS485 MODBUS digital output
Stainless Steel bearings
Measurement range up to 180 km/h
Made in Spain
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APPLICATIONS
PCE-WS RS485 Modbus has been designed to be used in industrial applications: cranes, solar panels, wind turbines, weather stations,
greenhouses, irrigation systems...
It is usually connected to process displays, PLC’s or dataloggers to display the wind speed and/or set alarms to predened values or to
obtain records during predened periods of time.
OPERATING
Up to 180 km/h of wind speed.
Output is a RS485 MODBUS RTU.
The wind sensor must be xed on a vertical position.
CONNECTION
Unit is provided with a 4x0.65mm cable with 25 meters lenght.
Wire colors:
VCC: blue
GND: white
A: orange
B: yellow
Termination resistor included (120 Ω)
For no termination resistor version, please, contact us.
DIMENSIONS
50
139
131
91
10
Ø122,73
,2
5
Ø
PROTOCOL
Data format:
1 start bit, 8 data bits and 1 stop bit. 19200 baudios. Even parity. (For other options, please, contact us)
Protocol type:
MODBUS RTU
Addr 04 00 00 00 01 CRCH CRCL
The wind speed in km/h is stored in 2 registers: @30001 y @40001. The user can read this value by using any of the 2 available
functions (Read Input Register and Read Holding Register).
The PCE-WS RS485 default adress is 244 <=> 0xF4. This value is stored in Holding Register @40002 and can be edited by the user.
The user can congure any adress in the range 1 (0x01) to 255 (0xFF).
PCE-WS RS485 Modbus
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Example: If Addr =3
READING. METHOD 1
Read request of wind speed from master by Read Input Register (function 0x04):
03 04 00 00 00 01 30 28
Slave's answer (PCE-WS RS485 MODBUS RTU):
03 04 02 SH SL CRCH CRCL
SHSL is the wind speed value in km/h.
Slave's answer example for 100km/h (0x0064):
03 04 02 00 64 C1 1B
READING. METHOD 2
Read request of wind speed from master by Read Holding Register (función 0x03):
03 03 00 00 00 01 85 E8
Slave's answer (PCE-WS RS485 MODBUS RTU):
03 03 02 SH SL CRCH CRCL
SHSL is the wind speed value in km/h.
Slave's answer example for 100km/h (0x0064):
03 03 02 00 64 C0 6F
WRITING
Write request of Address by Write Single Register (función 0x06):
03 06 00 01 00 NEW_ADDR CRCH CRCL
Note: The unit adress (Addr) is stored in the Holding Register @40002
Slave's answer (PCE-WS RS485 MODBUS RTU):
03 06 00 01 00 NEW_ADDR CRCH CRCL
NEW_ADDR is the new unit address. It must be in the range from 1 (0x01) to 255 (0xFF).
Example for NEW-ADDR 0x02:
Write request:
03 06 00 01 00 02 58 29
Slave's answer:
03 06 00 01 00 02 58 29
NOTE: the slave's address changes its value inmediately after the answer message.
© PCE Instruments
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TECHNICAL SPECIFICATIONS
REFERENCES AND ACCESSORIES
Electrical features
Power supply 9-30 Vdc
Maximum current 100 mA
Output RS485
Output maximum current 100 mA
Measurements
Range 3-180 km/h
Starting speed 8 km/h
Survival speed 200 km/h
Accuracy 1km/h (3-15 km/h)
3% (15-180Km/h)
General features
Material PA + FV
Bearings Stainless steel X65Cr13
2
Type of connection 4x0.65mm
Lenght: 25 m
Weight (without cable) 160 g
Dimensions 125x139 mm
Storage temperature -35ºC +80ºC
Working temperature
-20ºC +70ºC
without ice
EMC EN 61000-6-2:2001
EN 55022:2001, Class B
Protection IP65 (UNE 20324:1993)
References
PCE-WS RS485 PCE-WS RS485 Modbus 25m cable
9-30Vdc power
Accessories
PCE-WS/
MOUNT
65
Optional mounting kit for PCE-WS
anemometers & PCE-WV wind vanes
190
Ø5
22,5
10
Ø27
7,5
50
25
Ø7
54
Disposal
For the disposal of batteries in the EU, the 2006/66/EC directive of the European Parliament applies. Due to the contained pollutants,
batteries must not be disposed of as household waste. They must be given to collection points designed for that purpose.
In order to comply with the EU directive 2012/19/EU devices must be properly disposed of in accordance with this regulation, we give
them to a recycling company which disposes of the devices in line with law. For countries outside the EU, batteries and devices should
be disposed of in accordance with your local waste regulations. If you have any questions, please contact PCE Instruments.
Contact information for each country and user manuals in various
languages can be found on our website: www.pce-instruments.com
All dimensions and sizes are approximate. Specications and prices are subject to change without notice.
70
54
Ø8
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