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Wind Vane
PCE-WV RS485 MODBUS
PCE-WV A 4-20mA
English
PCE-WV A 4-20mA (HEATED)
PCE-WV range of PCE Instruments
Wind Direction sensor designed for dierent industries and sector
PCE-WV detects the vane position by using
magnetic sensors avoiding wear and tear. It
generates a 4-20mA analogue output or RS485
MODBUS signal, depending on version. The heated
version generates 4-20mA output and works from -20
ºC. When the temperature is higher than +6º C, the
heater switches itself o automatically to reduce the
consumption.
Last change: 12 December 2019 v1.0 English
© PCE Instruments
High resistance to radio frequency interference
(RFI) and electromagnetic interference (EMI)
RS485 MODBUS signal or 4-20mA passive
analogue output
Stainless Steel bearings
Magnetic measuring principle, with no wear and
tear or dead zones
Made in Spain
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APPLICATIONS
PCE-WV series has been designed to be used in industrial
applications. Connected to devices such as dataloggers, PLCs,
analogue signal displays (see our reference PCE-DPD-U), it
measures the wind direction and/or activates predened alarm
values.
Application examples:
Irrigation control system, automation in greenhouses, solar
trackers, ropeways at ski resorts, cranes, wind turbines,
weather stations etc. All those applications that contribute to a
greater control and greater security. Besides, PCE-WV AH has
been designed for those applications that involve working with
sub-zero temperatures.
OPERATING
Survival speed: 200 km/h of wind speed
It gives a RS485 MODBUS signal or 4-20 mA analogue output
which depends on the wind speed. (see graphic)
The vane must be orientated north as shown in the orientation
section.
RS485 version gives the wind direction in degrees. It calculates
the average position in the last second. In static position it has
20 positions of 18º each one.
The heater works from -20ºC up to +6ºC. Above this
temperature, it switches itself o automatically to reduce the
consumption.
The wind vane must be xed on a vertical position.
DIMENSIONS
PCE-WV CABLE
134,97
Ø5,2
50
92 42 46,065
Ø
185
ORIENTATION VANE
To orientate the vane north, the vane edge must be orientated north as shown
in the picture.
Once the vane has been orientated north, the output signal will correspond to
the angles and directions in the table.
PCE-WV M12 UNDERSIDE
13
Ø18
5
,7
6
Ø
PCE-WV SERIES
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WIND DIRECTION - OUTPUT RATIO TABLE
Direction Angle Analogue
output
North
North-northeast
Northeast
East-northeast
East
East-southeast
Southeast
South-southeast
South
South-southwest
Southwest
West-southwest
West
West-northwest
Northwest
Northwest-North
Static wind
0.0 4mA 00 00
22.5 5mA 00 16
45.0 6mA 00 2D
67.5 7mA 00 43
90.0 8mA 00 5A
112.5 9mA 00 70
135.0 10mA 00 87
157.5 11mA 00 9D
180.0 12mA 00 B4
202.5 13mA 00 CA
225.0 14mA 00 E1
247.5 15mA 00 F7
270.0 16mA 01 0E
292.5 17mA 01 24
315.0 18mA 01 3B
337.5 19mA 01 51
If the wind speed is below 3km/h, the angle will be
uncertain
RS485 output
NOTES:
• There is no version with both outputs (analogue
and RS485).
• The output of the 1s AVERAGE versions when
the vane is moving is a continuous analog output
as result of the average of the last second. When
the vane is static, the output has 20 positions of
18º each one.
CONNECTION
PCE-WV A 4-20mA
PCE-WV AH 4-20mA
Vcc (12-30 Vdc)
Analog Input
(4-20mA)
RL
PLC ground
White wire
Wires colours referenced to the cable
supplied by PCE.
Cable not included in all versions.
PCE-WV RS485 MODBUS
White wire
NOTE:
Without termination resistor
Vcc (9-30 Vdc)
0 V
A
B
PCE-WV AH MALE M12 CONNECTOR
45º
12
PIN4
PIN2
PIN3
PIN5
Vcc (15...24 Vdc)
Analog Input (4-20mA)
5
3 4
PIN1 NC
PIN2 4-20mA output (+)
PIN3 4-20mA output (-)
PIN4 Heater (+)
PIN5 Heater (-)
© PCE Instruments
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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 direction in degrees 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-WV RS485 default adress is 243 <=> 0xF3. 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).
Example: If Addr =3
READING. METHOD 1
Read request of wind direction from master by Read Input Register (function 0x04):
03 04 00 00 00 01 30 28
Slave's answer (PCE-WV RS485 MODBUS RTU):
03 04 02 SH SL CRCH CRCL
SHSL is the wind direction value in degrees.
Slave's answer example for 90º (0x005A):
03 04 02 00 5A 40 CB
READING. METHOD 2
Read request of wind direction from master by Read Holding Register (función 0x03):
03 03 00 00 00 01 85 E8
Slave's answer (PCE-WV RS485 MODBUS RTU):
03 03 02 SH SL CRCH CRCL
SHSL is the wind direction value in degrees.
Slave's answer example for 90º (0x005A):
03 03 02 00 5A 41 BF
PCE-WV SERIES
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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-WV 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.
TECHNICAL FEATURES
PCE-WV A 4-20 mA Electrical features
Power supply 12…30 Vdc
Maximum current 20 mA
Output Analogue (4-20 mA)
Maximum loop impedance
PCE-WV RS485 MODBUS Electrical features
Power supply 9…30 Vdc
Maximum current 50 mA
Output RS485
Protocol MODBUS RTU
Termination resistor Not included
PCE-WV AH 4-20 mA Electrical features
Power supply 15…24 Vdc
Consumption with heater
tª >6ºC ( +-3ºC)
Average consumption with
heater
tª <6ºC ( +-3ºC)
Maximum current 1.2 A @ 15 V
Output Analogue (4-20 mA)
Maximum loop impedance
VCC — 8V
<
L
0.02 A
<0.5 W
<17 W
1.8 A @ 24 V
VCC — 9V
<
L
0.02 A
ΩR
ΩR
Measurements
Range 0-360º
Starting speed 3 km/h
Survival speed 200 km/h
Resolution All versions:
22.5º
1 second AVERAGE
versions:
Static position: 18º
Non-static position: 1º
Accuracy +/-3º
General Features
Material PA+FV / Aluminium
Bearings Stainless steel X65Cr13
Weight (with no cable) 170 g PCE-WV A 4-20mA
180 g PCE-WV RS485
200 g PCE-WV AH 4-20mA
Dimensions 129x190 mm
Storage temperature -35ºC +80ºC
Operating temperature (ice free) -20ºC +60ºC
EMC EN 61000-6-2:2001
EN 55022:2001, Class B
Protection IP65 (UNE 20324:1993)
© PCE Instruments
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REFERENCES AND VERSIONS
4-20mA References
No heated
PCE-WV A Wind Vane sensor 4-20mA output 20m cable
PCE-WV
Wind Vane sensor 4-20mA output 2,5m cable
A/2,5*
PCE-WV A/
M12*
Wind Vane sensor 4-20mA output M12
Underside
Heated
PCE-WV AH/
M12*
Wind Vane sensor 4-20mA output M12
Underside. Heated version.
RS485 MODBUS RTU version
PCE-WV
Wind Vane sensor RS485 Modbus output
RS485*
Displays
PCE-DPD-U Panel display 96x48 IP65 4-20mA output
Universal power input 220Vac 50Hz / 110Vac
60Hz / 24Vdc
Optional relay alarms
Accessories
PCE-WS/
MOUNT
Optional mounting kit for PCE-WS
anemometers & PCE-WV wind vanes
190
65
*Check availability and MOQ
Ø5
Ø27
7,5
50
22,5
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.
10
70
54
Ø8
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.
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