Lambrecht PRO-Modbus 14523 User manual

(14523/14524) PRO-Modbus Manual
Manual
Wind Sensors PRO-Modbus (14523/14524)
PRO-Modbus · Advantages at a glance
► wear-free, precise data acquisition
► high reliability and longevity
► cup rotor made of seawater-resistant aluminium
► for highest capacity
► simple installation for mast, fl ange and bore
► practical cable plug connection
Descriptions
 outstanding protection against electrostatic discharge for
operation in lightning-prone regions
 wide range of operating for all-year application in most
climatic zones due to integrated, regulated heating
 especially robust due to reinforced axis
 very high measuring range of 60 m/s
 low starting values of < 0.5 m/s
 high resolution of measuring values
 very low needs of maintenance
Standards
► EMC acc. to EN 61000-6-2, EN 61000-6-4,
EN 61000-4-2, -3, -4, -5, -6, -11,
Namur NE-21
► VDE 0100
► WMO No. 8
► VDI 3786 part 2
Content
1. Warranty
2. Initial operation
3. Maintenance
4. Principles of installation
5. Setting up the North Direction
for the wind direction sensor
6. Electrical connection
7. Heating
8. Wiring diagram
9. Dimensioned drawings
10. Modbus-protocol
10.1 Data encoding
10.2 Device-address
10.3 Standard confi guration - Default
10.4 Modbus command set
10.5 Measured value and parameter registers
10.6 Sensor parameters / Confi guration parameters
10.7 Mapping register for autoconfi guration
10.8 Autoconfi guration
10.8.1 Mapping register PRO-Modbus
11. Technical data
1

(14523/14524) PRO-Modbus Manual
Manual
Wind Sensors PRO-Modbus (14523/14524)
1. Warranty
Please note the loss of warranty and non-liability by unau-
thorised manipulation of the system. You need a written
permission of the LAMBRECHT meteo GmbH for changes
of system components. These activities must be operated
by a qualifi ed technician.
The warranty does not cover:
1. Mechanical damages caused by external impacts (e. g.
icefall, rockfall, vandalism).
2. Impacts or damages caused by over-voltages or elec-
tromagnetic fi elds which are beyond the standards and
specifi cations in the technical data.
3. Damages caused by improper handling, e. g. by wrong
tools, incorrect installation, incorrect electrical installation
(false polarity) etc.
4. Damages which are caused by using the device beyond
the specifi ed operation conditions.
2. Initial operation
The wind can be represented by a vector quantity. For a
complete description of the wind it is necessary to specify
its speed and direction. The two components are subject to
spatial and temporal variations; thus, strictly speaking, they
are valid only for the site where the measuring instrument is
put up. We therefore recommend to select the place of instal-
lation very carefully.
Selecting the place of installation
Generally, wind measuring instruments should not measure
the specifi c wind conditions of a limited area, but indicate the
typical wind conditions of a wider area. The values measured
at diff erent places must be comparable.
Thus, when installing the sensor you should make sure the
place of installation is not under the lee of great obstacles.
The distance between the obstacles and the sensor should
be 10 times the height of the obstacles (this corresponds to
the defi nition of an undisturbed terrain).
If an undisturbed terrain of this kind does not exist the sensor
must be put up at a height of at least 5 m above the obstacle
height.
If the sensor must be installed on a roof top the place of instal-
lation must be in the middle of the roof to avoid predominant
wind directions.
If you want to measure both wind direction and wind speed,
install the sensors at the same measuring point, if possible,
and make sure to avoid any mutual infl uence of the sensors.
A wind sensor pair easily meets this requirement since the
sensors are set up side by side. Their horizontal distance
should be approximately 1.5 m. The two sensors must be
staggered vertically so that the lower edge of the upper wind
speed sensor is 0.1 to 0.5 m above the upper edge of the lower
wind direction sensor.
Mounting of the cup rotor and the wind vane at the
sensor
The bores at the cup rotor and the wind vane are attached in
such a way that they can only be installed in a certain clear
position. All 3 screws must be used to fasten the cup rotor
resp. the wind vane. Thus the correct direction of rotation is
guaranteed. The necessary wrench is included in delivery.
3. Maintenance
The sensor design permits long periods of maintenance-free
operation.
We recommend a regular visual verifi cation and functional test
of the wind sensors as well as a sensor calibration of both
sensor types at intervals of 2 years.
With problems, which you cannot solve, do not hesitate to
contact our LAMBRECHT meteo service under:
Tel.: [phone]
Fax: [phone]
e-mail: [email protected]
1Halbrundschraube mit
Innensechskant
round head screw with
hexagon socket
M3x8 DIN7380
2Schalenstern / cup rotor
3Schalensternglocke / cup rotor
protective globe
4Skt-Stiftschlüssel / hex head
wrench
4
2
3
1
3
1
4
2
1Schraube mit Innensechskant
screw with hexagon socket
M3x12 DIN7380
2Windfahne / wind vane
3Windfahnenglocke / wind vane protective globe
4Skt-Stiftschlüssel / hex head wrench
2

(14523/14524) PRO-Modbus Manual
Manual
Wind Sensors PRO-Modbus (14523/14524)
4. Principles of installation
Because the installation take place in a danger-
ous height, the assembly personal must follow
the rules for prevention of accidents.
I. Traverse with slotted bores
(Id-no.: 32.14567.010000)
At the traverse at each end are bores with a slot and with
a Ø 30 mm.
1. Remove the nut from the sensor.
2. Put a sensor with assembled cable sidewise into the bore.
3. Attach the sensor with the fl at side of detached nut from
the lower side. Tighten with a suitable tool (wrench size
40), until a twisting safety of the sensor aligned to the north
is given.
II. Mounting into bores
Material thickness for installation of the sensor between the
nuts may be max. 10 mm.
1. Remove the thread nut from the sensor.
2. The sensor with cable-plug connection is led without cable
into the bore and fastened by the opposite side with the
loose nut as under I.3.
When you install the connecting cables make sure
not to excessively shorten the cable leading to the
connector in the lower part of the sensor casing so
that you can later maintain or dismounting the sen-
sor. Put further a cable loop as sensor protection
against water under the sensor.
Tip: Install the sensors on ground to the traverse
and align you the wind vane parallel to the traverse.
You go only then upward, in order to accordingly
align the sensors with traverse under assistance of
a partner on ground.
5. Setting up the North Direction
for the wind direction sensor
For wind direction measurements the north mark on the sen-
sor must be aligned with the geographical north direction.
You have to turn the marking exactly over the marking at the
sensor shaft. When you have aligned the marks, you may fi x
the wind vane with e.g. a piece of adhesive tape. When you
have fi xed the wind vane this way you can locate the refer-
ence point by aiming at it over the axis. Now you must turn the
sensor casing on the mounting tube until the tip of the wind
vane points to the reference point in the north.
To set up the sensor’s north orientation select a landmark
which is as far as possible up north with regard to the fi nal
position of the wind direction sensor.
The reference point can be selected using a topographical
map (1:25000). The exact position of the reference point is
determined using an amplitude compass that can be adjusted
horizontally on a stand.
Please make sure there is no magnetic deviation
of the compass.
When the north direction is set up for the wind direction sen-
sor, you can mounting it as under point "Principle of installa-
tion". Remove any adhesive tape.
If you cannot select a northern reference point owing to local
conditions, you can proceed analogously using a reference
point in the south. In this case, however, you have to make
sure the north mark on the sensor does not point to the refer-
ence point but in the opposite direction.
6. Electrical connection
Sensors PRO-Modbus are connected to a data measuring
system via the open cable end. The sensors have a cable-plug
connection to the cable.
The connecting cable is suitably led along the mast between
the data evaluation device (indicating instrument or data ac-
quisition system) and the sensor. The cable must be fastened
using appropriate cable ties (their length depends on the mast
diameter).
Lead the cable in a wide curve from the mast to the
bottom of the casing so that you can later easily
dismount the cable.
Please note that the cable on the data processing side is pro-
tected against moisture, e.g. by using suitable cable glands.
If the mast is prepared accordingly, the connection cable can
also be laid completely in the pipe sections of a mast.
To reduce the risk of inductive interference the
sensor must be properly grounded (screening
on both sides).
7. Heating
The sensor disposes of an electronically controlled
18 W- heating within the sensor head. The heating is supplied
together with the sensor electronics. (On request a separate
supply of the sensor electronics and the heating by a fi xed
cable is possible.)
Under most climatological condi-
tions the heating prevents blocking
of the moving sensor parts (see
illustration). The cup rotor or the
wind vane are not heated. In case
of icing or formation of ice at the
moving sensor element the func-
tion is restricted for the period of
icing.
H
3

(14523/14524) PRO-Modbus Manual
Manual
Wind Sensors PRO-Modbus (14523/14524)
8. Wiring diagram
4

(14523/14524) PRO-Modbus Manual
Manual
Wind Sensors PRO-Modbus (14523/14524)
9. Dimensional drawings
Accessory (optional):
Mast adapter
Id-No. 32.14567.008000
5
15
P 51
69 P
M27x1.5

(14523/14524) PRO-Modbus Manual
Manual
Wind Sensors PRO-Modbus (14523/14524)
10. Modbus-protocol
The Lambrecht meteo Modbus sensors and the met[LOG] follow the specifi cation of the Modbus organization: "MODBUS
APPLICATION PROTOCOL SPECIFICATION V1.1b3". (See www.modbus.org).
10.1 Data encoding
MODBUS uses the "big-endian" format for addresses and data. This means that if a value is transmit-ted with a number
format that is larger than a single byte, the "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.
Example Big-Endian:
Register size value
16 - bits 0x1234 is transmitted in the order: 0x12 0x34.
Example Big-Endian (32 bit or 64 bit):
Register size value
32 - bits 0x12345678 is transmitted in the order: 0x12 0x34 0x56 0x78.
10.2 Device-address
The addresses 1...247 are permitted for Modbus.
10.3 Standard confi guration - Default
Baud rate: 19200 Baud
Address: Each sensor type (or family) has its own default address.
Default addresses of the LAMBRECHT sensors:
Address Sensor
1 Wind speed
2 Wind direction
3 Precipitation rain[e]
4 THP
5 EOLOS IND
6 com[b]
7 PREOS
8 ARCO
9 u[sonic]
10 Pyranometer 2nd Class
11 Secondary standard Pyranometer
12 PT100 to Modbus converter (temperature)
Byte frame according to MODBUS standard for RTU mode:
8E1 (1 start bit, 8 data bits, 1 parity bit (even parity), 1 stop bit)
10.4 Modbus command set
The LAMBRECHT Modbus sensors support the following commands:
• Read Input Register" command: 0x04 (measured data)
• Write Multiple Register" command: 0x10 (write sensor data)
6

(14523/14524) PRO-Modbus Manual
Manual
Wind Sensors PRO-Modbus (14523/14524)
10.5 Measured value and parameter registers
The register range 30001 to 35000 of the LAMBRECHT sensors is intended for measured values.
Register for the wind speed sensor 00.14524.101030
Register
address
Parameter name Unit Factor Description
30001 Wind speed instantaneous value m/s 10 1 decimal place INT
30002 Wind speed average value since last
retrieval
m/s 10 1 decimal place INT
30003 Wind speed maximum value m/s 10 1 decimal place INT
30004 Wind speed minimum value m/s 10 1 decimal place INT
Note: The values from the registers with the maximum values and minimum values are automatically reset as soon as the
register with the average values has been read out.
Register for the wind direction sensor 00.14523.131030
Register
address
Parameter name Unit Factor Description
30201 Wind direction instantaneous value ° 10 1 decimal place INT
30202 Wind direction average value since
last retrieval
° 10 1 decimal place INT
30203 Wind direction maximum value ° 10 1 decimal place INT
30204 Wind direction minimum value ° 10 1 decimal place INT
Note: The values from the registers with the maximum values and minimum values are automatically reset as soon as the
register with the average values has been read out.
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)..
The LAMBRECHT sensors give 0xD8F1= 9999(16bit) as error code or invalid value.
10.6 Sensor parameters / Confi guration parameters
Register address 40001 to 46000 contains the confi guration parameter of the sensor.
Register
address
Parameter name Unit Divisor Description
40001 Modbus device address 1 The addresses 1...247 are allowed.
40200 Baud rate 0,01 96=9600
192=19200
384=38400
46000 Number of mapping registers 1 Contains the number of occupied map-
ping registers for the autoconfi guration
INT
7

(14523/14524) PRO-Modbus Manual
Manual
Wind Sensors PRO-Modbus (14523/14524)
10.7 Mapping register for autoconfi guration
Registers address 46001-49000 containing for each sensor the available registers with measured values and sensor data
from the range 30001-35000.
The registers 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.
For example, in the PRO-Modbus wind speed sensor, registers 46001 to 46004 contain valid addresses. The holding register
46000 contains the number of registers 4. All 4 registers must be read out in the block with the instruction 0x04. Too many
registers or too few lead to an error message.
10.8 Autoconfi guration
The Modbus sensors from LAMBRECHT meteo off er the possibility of auto-confi guration. This is supported e.g. by the data
logger met[LOG].
For the autoconfi guration, the register addresses of the measured values and sensor data available in the register range
30001 to 35000 are listed as consecutive values in the LAMBRECHT sensors in register range 46001 to 49000. Registers
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.
For example, register 30401 always contains the current value of the air temperature. If this register address is not included
in the list in register range 46001 to 49000, the connected Modbus sensor does not supply an air temperature.
If the autoconfi guration is started with the data logger met[LOG], it queries the available mapping registers on each COM
interface in the device address range 1...25. For this purpose, the number of mapping registers is read from register 46000
and the register range from 46001 is read out as a block.
The following table contains the assignment of the confi guration to the individual (possible) instantaneous value registers of
the sensors. Some sensors deliver registers with mean, minimum and maximum values or additional values beyond this speci-
fi cation. Unknown register addresses (or registers that are not required) must therefore be ignored during autoconfi guration.
Register
address
Parameter name Unit Factor Description Data
type
Func-
tion
code
Storage-
type
>16 bit
30001 Wind speed instanta-
neous value
m/s 10 1 decimal place INT 0x04 Big-Endian
WORD
30201 Wind direction instan-
taneous value
° 10 1 decimal place INT 0x04 Big-Endian
WORD
30401 Air temperature in-
stantaneous valuet
°C 10 1 decimal place INT 0x04 Big-Endian
WORD
30601 Humidity instantane-
ous value
% r.F. 10 1 decimal place INT 0x04 Big-Endian
WORD
30701 Dew point instantane-
ous value
°C 10 1 decimal place INT 0x04 Big-Endian
WORD
30801 Air pressure instanta-
neous value
hPa 10 1 decimal place INT 0x04 Big-Endian
WORD
31001 Precipitation amount
total
mm 10 1 decimal place INT 0x04 Big-Endian
WORD
31101 Precipitation amount
total (High-WORD)
mm 1000 3 decimal places
Registers 31101 + 31102 can
only be read out together. (func-
tion code 0x04)
uLONG 0x04 Big-Endian
WORD
31102 Precipitation amount
total (Low-WORD)
0x04 Big-Endian
WORD
31201 Precipitation intensity
1-minute (sliding)
mm/
min
1000 = average (1-min.)
3 decimal places
Time base = 1 min.
Meas. rate = 6x per min.
INT 0x04 Big-Endian
WORD
31401 Global radiation in-
stantaneous value
W/m² 10 1 decimal place INT 0x04 Big-Endian
WORD
8

(14523/14524) PRO-Modbus Manual
Manual
Wind Sensors PRO-Modbus (14523/14524)
31501 Global radiation
instantaneous values
(High-WORD)
(temperature compen-
sated)
W/m² 100 2 decimal places
Registers 31501 + 31502 can
only be read out together
(function code 0x04)
LONG 0x04 Big-Endian
WORD
31502 Global radiation
instantaneous values
(Low-WORD)
(temperature compen-
sated)
0x04 Big-Endian
WORD
31591 Global radiation
instantaneous values
(High-WORD)
(uncompensated)
W/m² 100 2 decimal places
Registers 31591 + 31592 can
only be read out together
(function code 0x04)
LONG 0x04 Big-Endian
WORD
31592 Global radiation
instantaneous values
(Low-WORD)
(uncompensated)
0x04 Big-Endian
WORD
10.8.1 Mapping register PRO-Modbus
Register
address
Register value Unit Factor Description
46001 30001 Register address 1 Wind speed instantaneous value INT
46002 30002 Register address 1 Wind speed average value since last retrieval INT
46003 30003 Register address 1 Wind speed maximum value INT
46004 30004 Register address 1 Wind speed minimum value INT
46005 30201 Register address 1 Wind direction instantaneous value INT
46006 30202 Register address 1 Wind direction average value since last retrieval INT
46007 30203 Register address 1 Wind direction maximum value INT
46008 30204 Register address 1 Wind direction minimum value INT
9

(14523/14524) PRO-Modbus Manual
Manual
Wind Sensors PRO-Modbus (14523/14524)
Accessories: (please order separately)
(14565 U17) Traverse Id-No. 32.14565.017000 *)
(14567 U10) Traverse Id-No. 32.14567.010000
(14565 U19) Lightning rod Id-No. 32.14565.019000
Diff erent masts are project-related off ered.
*) Only with 50 mm adapter Id-No. 32.14567.008000
11. Technical data
Measuring principle: Hall Sensor Array, non-contact
Range of application: temperatures -40...+70 °C heated* · wind speed max. gusts 100 m/s · humidity 0...100 % r.h.
Heating: 18 W heating • electronically controlled • The heating within the sensor head prevents blocking
of the moving parts under most climatological conditions.
Supply voltage: 24 VDC (6...32 VDC)
Current consumption: max. 800 mA at 24 VDC and max. heating • 13 mA at 24 VDC and inactive heating
(Note: The heating can be deactivated via software tool. This allows the current consumption
to be reduced to 8.5 mA at 24 VDC.)
Housing: seawater-resistant aluminium · IP 65 in upright position · M12 cable-plug connection · stainless
steel nut and lock washer
Dimensions: see dimensioned drawings
Included in delivery: 1 sensor (without cable)
Connectable to: Lambrecht meteo data loggers · power supply units · user specifi c evaluation systems (not
included in delivery)
Parameters Wind direction (14523) Wind speed (14524)
Id-No. 00.14523.131030 00.14524.101030
Measuring elements: wind vane • 3-armed cup •
aluminium · special surface aluminium · special surface
Measuring ranges: 0...360° 0.5...75 m/s
Accuracy: ± 2° ± 0,3 m/s  10 m/s; ± 0,5 m/s...60 m/s
Resolution: < 1° < 0.1 m/s
Starting value: < 0.5 m/s < 0.5 m/s
Interface: RS 485 RS 485
Protocol: Modbus RTU Modbus RTU
Measuring rate: 4 Hz 4 Hz
Weight: 0.4 kg 0.35 kg
Measured values: current value · average value · max. value of the average value · min. value of the average value
*) [Remark: In case of icing and formation of ice at the movable sensor measur-
ing element the function is restricted for the period of icing. For installation sites
with high risk of icing LAMBRECHT provides for specially heated sensors.]
Technical data - Cable
Id-No.: 32.14567.060010
Structure: 4-pole · shielded
Flame resistance: acc. to UL Style 20549
Length: 15 m
Dimensioned drawing - Cable
Subject to change without notice.
10
LAMBRECHT meteo GmbH Tel [phone]
Friedländer Weg 65-67 Fax [phone]
37085 Göttingen E-Mail [email protected]
Germany Internet www.lambrecht.net
PRO-Modbus_b-de.indd 23.19