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User Manual 

 

Precipitation Sensor rain[e]H3 with Ethernet  

Id-No. 00.15184.540 020

rain[e]H3

 Precipitation Sensor 

Manual

11 

Modbus Protocol

The Lambrecht meteo Modbus sensors and the met[LOG] follow the specification of the Modbus organization: 

“MODBUS APPLICATION PROTOCOL SPECIFICATION V1.1b3” (see www.modbus.org).

11.1 

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 significant byte“ is sent first. For values that go beyond one 

register (e.g. 32 bit) this is not clearly specified 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.

To obtain the real measuring value, divide the received register value by the divisor. 

Values of  -9999 (16 bit value) or -9999999 (32 bit value) indicate an internal sensor error.

11.2 

Device Address

The addresses 1...247 are permitted for Modbus.

11.3 

Standard Configuration - 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 · u[sonic]WS6
6 com[b]
7 PREOS
8 ARCO
9 u[sonic]

10 Pyranometer 2nd Class

11  Secondary standard Pyranometer

12 PT100 to Modbus converter (temperature)
13 u[sonic]WS7

Byte frame according to MODBUS standard for RTU mode: 
8E1 (1 start bit, 8 data bits, 1 parity bit (even parity), 1 stop bit)

39

Содержание rain[e]H3

Страница 1: ...measurement Its outstanding resolution and accuracy are acknowledged worldwide Latest weighing technology overflow proof High resolution of 0 001 mm amount and 0 001 mm h intensity Measurement of pre...

Страница 2: ...ith Lantronix Device Installer p 21 10 In and Outputs p 27 10 1 SDI 12 Interface p 27 10 2 RS485 Interface p 34 10 2 1 SDI 12 Protocol p 34 10 2 2 WL ASCII Protocol p 34 10 2 3 Talker Protocol p 36 10...

Страница 3: ...n and Troubleshooting p 47 14 1 Cleaning p 48 14 2 Troubleshooting p 49 14 3 Error Codes p 50 15 Repair p 52 15 1 Repairs on Site p 52 15 2 Repairs in the Workshop p 54 15 3 Functional Test p 56 16 Ma...

Страница 4: ...on site 5 Use the system within the specified operating condition Eliminate influences which might impair the safety 6 Prevent the ingress of unwanted liquids into the devices 7 Funnel heating and dra...

Страница 5: ...nual 4 Dimensional Drawing and Product Drawing Ring heating Funnel Drop former Collecting system Funnel heating Weighing cell Temperature sensor below Temperature sensor above Measuring electronic Mas...

Страница 6: ...is smaller than 30 s the rain e H3 will use the intensity within the last minute value Amount since last retrieval The difference in the amount of precipitation between the current and the last retri...

Страница 7: ...age power lines and cell towers is not necessary Accuracy of the housing alignment The housing can be aligned with an integrated spirit level at 0 7 blister within the edge of the ring marking This ac...

Страница 8: ...casing in the open direction anti clockwise Lift the casing with caution Mind the heater s terminal plug The measuring edge of the upper part of the housing is quite sharp There is a risk of cuts It i...

Страница 9: ...r Manual Unpack the collecting vessel Insert the collecting vessel Insert collecting vessel against the bearing spring with the site of the magnet facing towards the reed contact Insert the other axis...

Страница 10: ...part of the housing is quite sharp There is a risk of cuts It is therefore recommended that on the measuring edge not be pressed on and or that gloves are worn Inserting of the dirt trap spiral Inser...

Страница 11: ...data acquisition system depends on the interfaces being used The values for RS485 and Ethernet are obtained from the respective definitions of these standards RS485 1000 m Ethernet 100 MBit 100 m CAT...

Страница 12: ...ON OFF SDI 12 protocol activated on SDI 12 Interface 1200 Bd Analogue output OFF Heating activated 7 7 Connections Connection power supply RS485 Via the A coded 8 pole M12 plug the power supply and ou...

Страница 13: ...User Manual Precipitation Sensor rain e H3 with Ethernet Id No 00 15184 540 020 rain e H3 Precipitation Sensor Manual Connecting diagram Pin assignment 13...

Страница 14: ...ain e H3 it has to be connected via the USB service interface in the device interior to a PC with installed rain e H3 Commander It is recommended that the power plug and the sensor connector are unplu...

Страница 15: ...vailable options and ranges Pulse output non isolated isolated Operating type Impulse Closing time 10 500 ms in 5 ms steps Resolution 0 01 1 mm in 0 01 mm steps Rain YES NO Rain event pulse output 1 p...

Страница 16: ...ess 0 9 A Z a z 8 1 Firmware Update If firmware updates are necessary e g for new functions or because the signal output requirements have changed please download these via our homepage www lambrecht...

Страница 17: ...calibration Avoid vibrations during the calibration of the rain e H3 as this could lengthen the process or in extreme cases even hinder it Follow the instructions of the programme For the calibration...

Страница 18: ...bration please take the test weight calibration ball and put it back in the packaging Check the correct position of the blank jacket before putting on the round blank 8 2 2 Call of Status and Error Me...

Страница 19: ...ity is available and the heating current measured internally falls below the threshold of 5 1 A Lower temperature sensor error This error occurs when the lower temperature sensor for heater monitoring...

Страница 20: ...variance of the measuring values Additionally the calibration factor is given To adjust the load cell at first the COM interface where the rain e H3 is connected has to be chosen in the menu After th...

Страница 21: ...www lantronix com products deviceinstaller Status April 2017 The Lantronix DeviceInstaller is a Windows based GUI application With this application the device can be found in the network and the Ether...

Страница 22: ...recipitation Sensor Manual Select the tab Web Configuration Use the green arrow to establish the connection and then confirm the login window with OK Now the web interface appears Click Network on the...

Страница 23: ...0 020 rain e H3 Precipitation Sensor Manual Now click on Server in the menu on the left The port can be set under HTTP Server Port Now open the Channel 2 Connection menu item There you can set the por...

Страница 24: ...ttings have already been configured at the factory Settings for Terminal The following describes how data can be displayed on a terminal First install the Lantronix Com Port Redirector The Lantronix C...

Страница 25: ...H3 with Ethernet Id No 00 15184 540 020 rain e H3 Precipitation Sensor Manual The available devices are given in the Device List Use the button Add Remove to add and or remove COM Ports Confirm by cl...

Страница 26: ...e button The COM port can now be used by any terminal for data output input Configuration of the rain e H3 via the web interface of the Ethernet interface It is possible to configure the rain e H3 via...

Страница 27: ...CR LF aD0 aD1 Send Data Puffer 0 Send Data Puffer 1 a values CR LF a values CRC CR LF resp with CRC checksum aM1 Generate Variance atttn CR LF aM2 Generate Heating Data atttn CR LF aM3 Start Intensity...

Страница 28: ...swer a a CR LF a Sensor address a Sensor address End of command CR LF End of answer Example Command Answer 0 0 CR LF 1 1 CR LF Send Identification aI The command aI is used to ask the sensor for its m...

Страница 29: ...e sensor process the returning string and provide the available measured data In contrast to standard sensors described in the SDI 12 documentation the rain e measures continuously Thus the measured v...

Страница 30: ...ame bus The command aC requests that the sensor process the returned string and to provide the available measured data In contrast to standard sensors described in the SDI 12 documentation the rain e...

Страница 31: ...e requested from the sensor with aD0 and aD1 The sensor uses the respective arithmetic sign or to separate the values If the data was requested with a CC or MC command it will be returned with the CRC...

Страница 32: ...of answer Additional Measurements With the following commands additional information can be generated by the rain e H3 and requested with aD0 The additional measurement commands aMn and aMCn have the...

Страница 33: ...aV can be used to do a system analysis and generate an error string The command aV has the same format as the command aM see above The rain e answers to the command aV with a0039 Syntax Command Answer...

Страница 34: ...he WL ASCII protocol it can only be used with a single rain e H3 and not in a bus The baud rate is 19200 Bd and has the byte frame format 8N1 8 data bits no parity bit no parity 1 stop bit Start Measu...

Страница 35: ...version software version and serial number of the load cell Syntax Command Answer STX i CR LF No P S Serial CR LF STX Start of command No Serial No of the device e Command Return Error String P Board...

Страница 36: ...CR LF End of answer Example Command Answer STX a CR LF 0 059 0 073 0 031 CR LF 10 2 3 Talker Protocol The Talker protocol is the third available mode of the RS485 interface It sends an ASCII string i...

Страница 37: ...Start running F inner temperature above in C G inner temperature below in C H status of heating 1 ON 0 OFF I error code J Talker interval in seconds K outside temperature in C no measured value delim...

Страница 38: ...lly binary number In binary representation the digits correspond to the following error messages Bit position Status message 0 error maximum heating temperature threshold exceeded 1 1 error heating 2...

Страница 39: ...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 To obtain the real...

Страница 40: ...of sensor 1 1 Read only LONG 34921 Status of heater 1 1 Read only INT 34922 Internal temperature C 10 1 Read only INT 34931 Total heating power in 1 1 Read only INT The registers addresses 30001 to 3...

Страница 41: ...emark Access type 40050 Device identification number 15 characters 8 2 characters in each register The returned data are in form of a 16 byte null terminated string Read only 40100 Serial number 11 ch...

Страница 42: ...10 9C 41 00 01 02 00 01 2D E8 03 10 9C 41 00 01 7E 6F LEN 9 Transmission Query Source Master Dest Slave 3 Function Write Multiple Register 16 Func Desk Address 40001 Quantity 1 Byte count 2 Register v...

Страница 43: ...alled in polling mode with different commands or sent with a configurable output interval in talker mode automatically from rain e In this protocol the sensor can be called every 10 s We suggest inter...

Страница 44: ...ear M month D day B time in format hh mm ss h hour m minute s second C precipitation intensity in mm h D total amount since system start in mm accumulated precipitation E measurement Start Stop 1 Stop...

Страница 45: ...e in C no measured value range of values 55 00 125 00 delimiter checksum CS checksum see chapter Checksum The returned error code is a decimal representation of an originally binary number In binary r...

Страница 46: ...he checksum Example STX 1234567890 C7 CR LF STX 1234567890 ist C7 13 7 Pulse Output Each pulse corresponds to a predefined amount of measured precipitation The resolution factor range is 0 01 200 mm p...

Страница 47: ...bird population pollen leaf fall According to chapter 6 of the VDI Guidelines Environmental meteorology Meteorological measurements Precipitation VDI 3786 Part 7 December 2010 we recommend monthly ch...

Страница 48: ...upper part of the housing ensure that the housing edge of the collecting surface is not damaged After cleaning reinsert the plug connector to the upper heating on the heating board Close the housing a...

Страница 49: ...o the axle bearing To do so slide the axle pin of the collecting vessel into the bearing spring with the magnetic side in the direction of reed contact and insert the other axle pin into the other bea...

Страница 50: ...efect is present Troubleshoot The weighing unit main board with load cell and collecting vessel must be replaced 14 3 Error Codes rain e H3 knows the following errors Error the maximum heating tempera...

Страница 51: ...element is defective you can also set in the laboratory the maximum heating temperature and the target temperatures above and below to 10 C above the ambient temperature and feel which heating does no...

Страница 52: ...erature sensor must be replaced After troubleshooting please restart the rain e H3 14 3 7 Error Quality of Supply Voltage The error is raised if the quality of the voltage supply fluctuates strongly P...

Страница 53: ...ll object e g wooden stick and remove it with the other hand Insert the cleaned or a new protective grid on the side of the weighing unit into the provided gaps Avoid contact with the weighing unit wh...

Страница 54: ...13 mm jaw ring or socket wrench Remove the 3 old hexagon socket screws M8x20 Id No 35 09331 540300 and replace with new ones Open the housing as described Level the device by means of the spirit leve...

Страница 55: ...bracket on the two mounting holes Wet the screw threads of the new mounting screws with a drop of Loctite 274 and insert the mounting bolts into the holes provided Tighten the mounting bolts with a to...

Страница 56: ...slotted screwdriver blade width 2 mm All M12 connectors used are inserted from the front and have an M16 mounting thread The mounting plugs are delivered with straight cut off wire and must be stripp...

Страница 57: ...H3 Commander Commander 00 15180 400 000 Stainless steel mast for concrete foundation 00 15180 800 050 Stainless steel mast for concrete foundation with base plate Stainless steel mast for concrete fou...

Страница 58: ...LO OG G O OU UT T C CU UR RR RE EN NT T P PU UL LS SE E O OU UT T I IS SO O P PU UL LS SE E O OU UT T I IS SO O w ws s w wh ht t b br r b br rn n g gn n g gr rn n g ge e y ye el l g gr r g gr ry y r r...

Страница 59: ...Ethernet Supply voltage 9 8 32 V DC Heating data electronically controlled ring funnel and drain line heating Target temperature 2 C funnel surface temperature Accuracy 1 C Heating power 70 W funnel...

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