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Appendices

Modbus® RTU slave application protocol

Introduction
This document describes the Modbus® RTU slave application protocol of RaZON

+

. The purpose of the protocol is to make instrument 

measurements, status and identification available for logging using the Modbus® protocol.

The protocol does not allow configuring the instrument or interface. Configuration must be done using the instrument’s user interface.

The detailed status flags and/or errors of the underlying hardware (motors, processor board, radiometers etc.) is reduced to simple 
‘ok’, ‘warning’ and ‘error’ indicators.

Supported commands
The Modbus® RTU slave application protocol supports the following Modbus® function codes:
• 01 (0x01) Read Coils
• 02 (0x02) Read Discrete Inputs
• 03 (0x03) Read Holding Registers
• 04 (0x04) Read Input Registers

Formatting

Endianness
Modbus® itself uses big-endian representation for addresses and values. When in this protocol registers are composed of multiple 
registers, such as a 32-bit floating point number or a 32-bit date value, they are represented in big-endian format too. The most 
significant 16-bit word is sent first.

Floating point numbers
Modbus® does not specify a floating point data type. However, they are being used in this protocol. Floating point numbers are 
formatted according IEEE-754.

Strings
Modbus® does not specify a string data type. However, strings are being used in this protocol. Each 16-bit register holds 2 characters. 
The first character is sent first. Unused (trailing) characters must be set to the NULL character.

Содержание RaZON+

Страница 1: ...RaZON Solar Monitoring System Instruction Manual ...

Страница 2: ...2 ...

Страница 3: ...d only if the product has been installed and used according to the instructions supplied by Kipp Zonen Kipp Zonen shall in no event be liable for incidental or consequential damages including without limitation lost profits loss of income loss of business opportunities loss of use and other related exposures however incurred arising from the incorrect use of the product Modifications made by the u...

Страница 4: ...4 ...

Страница 5: ...t P O Box 507 2600 AM Delft The Netherlands declares under our sole responsibility that the product RaZON Solar Monitoring System to which this declaration relates is in conformity with European Harmonised Standards as published in the Official Journal of the EC based on the following standard following the provisions EMC directive 2004 108 EC LV directive 2006 95 EC also this device complies to D...

Страница 6: ...6 ...

Страница 7: ...nting the Pole Mount 3 7 Tracker orientation 3 8 Pyranometer mounting 3 9 Pyrheliometer mounting 3 10 Shading assembly mounting 3 11 Levelling 3 12 DC power source selection 3 13 Connecting DC power cable 3 14 Set up without using Ethernet or Wi Fi enabled Smart device 3 15 Set up using Ethernet or Wi Fi enabled Smart device 3 16 Web interface 3 16 1 Menu bar and Dashboard 3 16 2 Instrument Status...

Страница 8: ...Fi conection 6 4 2 Ethernet 7 Maintenance 8 Trouble shooting 8 1 Problem check list 8 2 FAQ 8 3 Technical assistance 9 Software overview 9 1 Solar position algorithm 9 2 Firmware 9 2 1 Firmware upgrade Appendices Modbus RTU slave application protocol Modbus TCP slave application protocol ASCII Serial communication protocol ASCII TCP communication protocol Logging file examples 43 43 43 45 45 47 48...

Страница 9: ...to the RaZON The RaZON is available in two versions The RaZON ALL IN ONE Solar Monitoring System with integrated anti soiling PR1 pyranometer and PH1 pyrheliometer The RaZON Smart Solar Monitoring Base with the SMP enabling kit for use with Kipp Zonen Smart radiometers Both versions are automatic sun trackers with integrated data logger to point radiometers at the sun Depending on the type of RaZO...

Страница 10: ...ON with tripod bottom view 10 Pyrheliometer connection Pyranometer connection RS 232 RS 485 Aux in Cable mounting RS 485 to host Reset switch WiFi optional Ethernet 10 100 DC Power input 20 to 30V 15W East ...

Страница 11: ...ls for mounting shading rod and disc The PR1 and PH1 are pre mounted 1 4 Included with the RaZON Smart Solar Monitoring Base RaZON tracker Shading Assembly bars and disc plus the required screws DC power connector Tools for mounting shading rod and disc SMP enabling kit Isolation feet for SMP pyranometer New extension rod for shading arm Larger shading disc ...

Страница 12: ...12 ...

Страница 13: ...0 kPa Humidity 0 to 100 including condensation 9 kg 60x60x48 cm IEC 60529 IP65 suitable for all weather outdoor use 0 1 Yes Yes Gear drives RS 485 Modbus for external sensor system RS 485 to host Modbus or ASCII Ethernet RJ 45 web based Modbus TCP Wi Fi accessory adapter DC power GPS location and time date Standard Data logging 1 s sampling 1 minute average logging Installation Plug and play Wi Fi...

Страница 14: ...econd Class 0 1 s 1 20 C to 50 C 1 W m2 1 W m2 0 3 20W m 180 0 to 1500W m 40 C to 80 C 67 Spectral range 50 points Response time 95 Response time 63 Zero offsets b temperature change 5 K h Non linearity 100 to 1000W m Field of view Measurement range Operating temperature range Ingress Protection IP rating 310 to 2700 nm 0 2 s Classification to ISO 9060 1990 Second Class 0 1 s 1 W m2 0 3 Temperature...

Страница 15: ...wers or elevated structures It is advised to use qualified personnel for installation and maintenance The client is responsible for following the local safety regulations The use of appropriate equipment and safety practices is mandatory Check your company s safety procedure and protective equipment prior to performing any work If the RaZON is mounted at a high position special care must be taken ...

Страница 16: ...cast onto the radiometers at any time If a meteorological mast is placed near the RaZON make sure the position is such that the location of the mast is between the RaZON and the nearest pole North or South pole In this way the mast will never block the direct radiation A rule of thumb is that the distance of a mast or tree with height h should be at least 10 h from the RaZON Make sure that the RaZ...

Страница 17: ...17 Minimum Operating Area with Shading Assembly 940 mm Minimal Operation Area Ø 720 mm Ø 492 mm 338 mm 242 mm Rotation Axis ...

Страница 18: ...g pattern to match the Tripod Stand with levelling feet The tripod has 3 slots for mounting the 3 M4 bolts to the bottom flange The E mark on the bottom flange must point East when the RaZON is mounted Ideally the bolts should be in the middle of the slots when the tripod is mounted to the RaZON This allows adjustment of the position afterwards 30 to 30 30 play on the tripod mounting before final ...

Страница 19: ...ed to the East The tripod feet have 7 mm mounting holes to fix the RaZON to a firm base It is required to perform the levelling and alignment during installation of the RaZON first before actually tightening the tripod feet to the base Tripod Stand footprint Note M4x10mm flat head srews 3x 426 mm 213 mm 372 mm ...

Страница 20: ...ZON bottom flange is facing up it is easier to mount the pole mount this way The levelling is done with the 3 tilt screws in the top plate of the pole mount Once properly mounted the 3 bolts connecting it to the RaZON can be fastened This should be done after the complete installation of the RaZON is ready Always check the levelling afterwards Please follow the next steps to mount the pole mount t...

Страница 21: ... finishing the levelling and azimuth adjustment the RaZON can be secured fully by tightening the screws d from step 3 When different mounting screws 4 are used they must not protrude through the bottom flange of the RaZON When installed an initial Azimuth orientation due East with the help of a compass smartphone will do When the RaZON is powered later on exact positioning can be performed via Eth...

Страница 22: ...aZON after the mounting is fixed Pyrheliometer connection Pyranometer connection RS 232 RS 485 AUX in M4 bolts Cable mounting East mark on flange E RS 485 to host Reset switch Ethernet 10 100 DC Power input 20 to 30V 15W East USB WiFi connector Tip Drawing with E marking on bottom flange It is advised to mount all pole mount screws while the RaZON is still in its box While the RaZON bottom flange ...

Страница 23: ...te on top of the RaZON If any other SMP pyranometer has to be mounted the standard supplied M5 x 80 bolts have to be used If an SMP pyranometer has to be mounted the 3 isolation push pins have to be mounted first They are supplied with the SMP enabling kit Any SMP pyranometers can then be fixated with the 2 standard supplied M5 bolts M5 bolt 2x SMP isolation push pin 3x ...

Страница 24: ...s ordered with a SHP1 it has to be mounted using 2 x 5 mm bolts and washers For the SHP1 it is important to mount it with the 2 alignment target on top The PH1 alignment target is on the outer side of the pyrheliometer Pyrheliometer PH1 or SHP1 mount on the RaZON M6 x 20 mm 2x M6 Locking Ring 2x ...

Страница 25: ...with the short section and small shading disc Optionally when the RaZON is ordered with an SMP10 or higher pyranometer a long section with larger shading disc is supplied The mounting of both sections is identical The 2 different end sections of the long arm with shading discs is shown below The shading disc fits only in one way and is fastened with a screw When the RaZON is operational the disc s...

Страница 26: ...d is possible before the 3 M8 bolts are placed The bubble level will move when the tracker is rotated 180 degrees We recommend adjusting the levelling feet in such a way that the average bubble position is in the middle 3 12 DC power source selection An optional waterproof AC DC power supply 50 W and Modbus Junction box is available to power the RaZON and some additional sensors If the RaZON is po...

Страница 27: ... is female The DC power connector is suitable for cable diameters between 6 and 12 mm For 6 to 9 mm and 9 to 12 mm different sealing rings are used The DC power connector is a male type Hirschmann CA 3 LS connector The maximal cable resistance should be less than 2 x 0 5 Ω Please make sure the used cable is flexible enough to withstand the daily movement of the tracker The number of strands per wi...

Страница 28: ... Please understand that the RaZON can rotate plus and minus 270 degrees depending on its location from its home position Before power is applied it is advised to rotated the RaZON by hand the full 540 and so checking the required cable length for all connected cables The power supply should be Cat III or Cat IV for outdoor use When used at a height over 2000m the power supply should be specified f...

Страница 29: ...round platform re check the levelling 3 15 Set up using Ethernet or Wi Fi enabled Smart device The benefit of communication during set up are extra options to configure it will guide you through the set up process Also the fine adjustment of the Azimuth position can be done via the web interface The RaZON can be accessed via Ethernet or optional Wi Fi Ethernet A standard Ethernet cable can be used...

Страница 30: ...spot but has no real Internet connection To connect open the Wi Fi setting on your smart device or PC and look for the SSID of the RaZON it is razon serial number Connect and enter the password default is RaZON serial number Once connected go to your web browser and enter any not stored domain in the title bar like razon nl The browser will then open the RaZON dashboard where you can start Contact...

Страница 31: ...red or orange the next item in the menu bar Instrument status give you detailed information about the individual components The showed time and date is Local Time and not corrected for daylight saving The chart on the bottom right shows the combined irradiance over the last day By clicking on the type of irradiance below the chart you can switch its graph on or off Zooming is possible by clicking ...

Страница 32: ...u bar shows the status of all different RaZON parts including the connected sensors For correct operation all item states should be green Success When the radiometers for Direct and Diffuse Device are not connected they do not show up so don t give an error ...

Страница 33: ...ou can enter the date yourself or click on the agenda for an overview The present date is indicated in blue the selected date will show up in orange Before clicking the save icon you can change the file name Once downloaded you can save it save as in the directory you want The Export Log File has a maximum interval of two months In the Appendix Logging file examples an example of the logged data i...

Страница 34: ...The buttons Today Week Month will give you a quick view over the selected interval Or a specific start and end date can be entered The download is done per graph by clicking on the icon in the top right hand corner The graphs will be transferred in png format ...

Страница 35: ...cepted The added device has to be connected to the RS 485 port AUX in on the bottom of the RaZON planned for 2017 3 16 6 System configuration The System Configuration menu has two options Tracker mode and Communication 3 16 6 1 Tracker mode Switching between normal sun tracking and demo mode allows you to simulate a full day rotation in 5 or 10 minutes When this option is selected the top of the w...

Страница 36: ... ASCII or Modbus Save will store these settings Details about the communication protocol are given in the chapter about the serial interface The 2 4 wire transmission setting switches on off the local echo 3 16 6 3 Timezone In this menu the local time zone UTC offset can be set as used for time stamp in the logged data This time setting does not include the possible local daylight saving offset ...

Страница 37: ...n The menu will guide you through 5 steps Each step can be confirmed with Done when completed or return to the Installation menu with Back Each item gives you instructions what to check before completion 3 16 7 1 Device Here the correct operation of the connected radiometers can be checked All connected devices should show up and their status should be green Success Done Back ...

Страница 38: ...below 3 16 7 3 Raw Azimuth When the raw Azimuth position is found with the E marking pointing East the bolts from the tripod or pole mount can be fastened With Azimuth fine the fine tuning can be done via Ethernet or Wi Fi connection 3 16 7 4 Levelling Cable routing Before fine adjustment can be done the RaZON should be levelled see 3 10 To prevent further handling afterwards also the cable routin...

Страница 39: ...ast The 3 M4 bolts in the tripod pole mount are fastened When the above requirements are met the final adjustment can be made by rotating the RaZON with the buttons on the screen until the sun falling through the first alignment target hole from the pyrheliometer makes a round spot of light around the second alignment target hole It takes about 10 seconds for the RaZON to react on the left right b...

Страница 40: ...ight distortion of the levelling might occur Applying the right same amount of force on the 3 bolts will solve this 3 18 Cable routing When all communication sensor and power cables are connected the cable routing should be created correctly Disconnect the power Combine all outgoing cables together on the cable clamp on the bottom of the RaZON Strap them with a tie rap together outgoing side facin...

Страница 41: ...m dome and tube the communication with the PR1 is fully identical to the PH1 Dimensions PR1 70 3 mm Ø 52 mm Sensor height 54 3 mm Spectral range 50 points Response time 95 Response time 63 Temperature response Zero offsets a thermal radiation at 200 W m b temperature change 5 K h Non linearity 100 to 1000W m Directional response up to 80 with 1000W m beam Field of view Measurement range Operating t...

Страница 42: ...42 ...

Страница 43: ... manual section 2 9 2 94 for details if you want to connect the PR1 and PH1 as separate instruments 5 2 Internal desiccant To keep the detector and electronics dry and to prevent condensation forming inside the instruments with temperature changes a desiccant is used to absorb humidity For the PR1 and PH1 this desiccant is internal and lasts for 5 year The desiccant will be exchanged when the inst...

Страница 44: ...44 ...

Страница 45: ...First locate the supplied cable gland for the Ethernet cable water proof cable gland is supplied the cable is not Make sure the cable you are using is meant for outdoor use and flexible enough for continuous rotation Remove the plastic plug from the Ethernet cable entry The Ethernet connector is fitted with a plastic plug screw cap to make it waterproof If this cap is removed a RJ 45 connector can...

Страница 46: ...f this connector needs to be unscrewed when removing the connector cable again Finally tighten the nut check if the tape around the cable is still in place and tighten the nut to make the connection waterproof Warning Communication with the RaZON is established via its network interface The Ethernet connection is suitable for permanent use however the RaZON is not protected by an internal firewall...

Страница 47: ...of RS 485 connector to host on bottom of RaZON The communication protocol has three main roles Transmission of the instrument s data status info to the PC Firmware update Instrument hardware configuration The RaZON is equipped with a 4 wire RS 485 isolated serial interface The following communication parameters can be set Bold are factory defaults Protocol Modbus Modbus address 1 ASCII Baud rate 9...

Страница 48: ...ransmit Data Y RS 485 Receive Data A Pin description of the RS 485 connector to HOST interface The indicated colors above apply to the standard yellow 8 wire cable as used for the SMP pyranometers with 8 pin Binder 712 connector To use this port as 2 wire RS 485 connect the RD and TD together as D and the RD and TD together as D and select in the webpage under system configuration Communication Tr...

Страница 49: ...l number Once connected the password has to be entered Default password is the same as its SSID name RaZON and its serial number e g RaZON160012 Once connected enter a not stored site name in the address bar of your browser like razon nl and start search by pressing enter The browser will come up with the RaZON dashboard page 6 4 2 Ethernet For Ethernet connection the RaZON has to be connected to ...

Страница 50: ...50 ...

Страница 51: ...N itself does not need re calibration However we suggest having the measuring instruments used on the RaZON re calibrated every two years The PH1 and PR1 have internal desiccant that needs to be replaced every 5 years When sending the instruments back to Kipp Zonen for calibration we will always renew the desiccant The label on the radiometers shows the last calibration date Therefore it also indi...

Страница 52: ...52 ...

Страница 53: ...lem description Example of the erroneous data If you cannot solve the problem by the tips on the next pages email the problem description to support kippzonen com call us at 31 15 2755 210 or contact the nearest Kipp Zonen distributor as listed on our website www kippzonen com 8 1 Problem check list Check the items in the following list If these do not help see the following section on troubleshoo...

Страница 54: ...ing the bubble level 4 Connect power to the RaZON and let it start tracking 5 Rotate the RaZON on its tripod adjust azimuth until the alignment target from the pyrheliometer points exactly at the sun Q Can the RaZON be moved by hand A Moving the RaZON by hand powered or un powered is possible The gear drive inside does allow this When the RaZON has to be moved azimuth or zenith it is preferred to ...

Страница 55: ... Algorithm and the data logging have the GPS clock accuracy The difference between the Universal Time UT or GMT and GPS time o a leap seconds is corrected for The data logger uses the Universal Time UT or GMT The data logger uses the Local Time as set under System Configuration Time Zone not taking into account any daylight saving offset 9 2 Firmware Kipp Zonen is always looking for implementing i...

Страница 56: ...e to your LAN Make sure the RaZON receives an IP address from your DHCP server Browse on your PC to http razonyynnnn 81 where yynnnn is the serial number The software update page appears Press Upload Wait till reboot this can take 10 minutes After reboot it takes up to 5 minutes to install the update and resume normal operation On the web interface http razonyynnnn verify that the new firmware ima...

Страница 57: ... Modbus function codes 01 0x01 Read Coils 02 0x02 Read Discrete Inputs 03 0x03 Read Holding Registers 04 0x04 Read Input Registers Formatting Endianness Modbus itself uses big endian representation for addresses and values When in this protocol registers are composed of multiple registers such as a 32 bit floating point number or a 32 bit date value they are represented in big endian format too Th...

Страница 58: ...interval 0 0 116 2 IV_AIR_PRESSURE R F32 Derived air pressure at end of averaging interval 1013 25 118 2 IV_IRR_DIFFUSE R F32 Mean diffuse irradiance in W m2 0 0 120 2 IV_IRR_DIRECT R F32 Mean direct irradiance in W m2 0 0 122 2 IV_IRR_GLOBAL R F32 Mean global irradiance in W m2 0 0 124 2 IV_TEMP_PYRANO R F32 Mean temperature of pyranometer in degrees Celsius 0 0 126 2 IV_TEMP_DIRECT R F32 Mean te...

Страница 59: ...ons are numbered from 100 to 199 1 00 1 99 RaZON datamodel versions are numbered from 200 to 299 2 00 2 99 Value Description 200 Datamodel version 2 00 as described in this document SERIAL_SYSTEM SERIAL_SYSTEM is a 24 character device type and serial number text identifying the RaZON base system In case the system cannot translate the device type to a text string it will be translated as T device ...

Страница 60: ...s calculated using a solar positioning algorithm location altitude date and time and does not include any adjustments IV_SOLAR_ZENITH IV_SOLAR_ZENITH is the solar zenith angle in degrees at the end of the averaging interval The value is calculated using a solar positioning algorithm latitude longitude altitude date and time and does not include any adjustments IV_LATITUDE IV_LATITUDE is the latitu...

Страница 61: ...he measured diffuse irradiance in W m2 Idirect is the measured direct irradiance in W m2 ze is the zenith angle in radians or degrees IV_IRR_DIRECT IV_IRR_DIRECT is the mean direct irradiance in W m2 Register IV_LEN indicates the length of the averaging interval The sample rate is 1 s IV_IRR_GLOBAL IV_IRR_GLOBAL is the mean global irradiance in W m2 Register IV_LEN indicates the length of the aver...

Страница 62: ...lem but measurements are still correct During an error measurements must be considered void Value Description 0 System ok 1 System warning 2 System error Detailed status information is only available on the user interface IV_STATUS_PYRANO IV_STATUS_PYRANO is the most severe pyranometer status that occurred during the averaging interval Register IV_LEN indicates the length of the averaging interval...

Страница 63: ...E indicates whether the diffuse irradiance is being calculated or measured Value Description 0 Diffuse irradiance calculated global irradiance measured using the pyranometer 1 Global irradiance calculated diffuse irradiance measured using the pyranometer ...

Страница 64: ...unication parameters The default communication parameters are TCP port 502 Number of connections 10 Slave ID 1 When the server has 10 socket connections and receives a new connection request it will accept the new connection and drop the oldest connection The oldest connection is determined on base of the alive time The alive time is initially set to the connection accept time and is updated upon ...

Страница 65: ...of the instrument The interval of the status messages is 1 second The communication protocol has two main roles 1 Sending recovery commands to the instrument 2 Transmission of the instrument s data status info to the HOST Firmware release This document is valid for the RaZON firmware release 2 06 and up In case a higher firmware release supports a changed version of the serial protocol a new versi...

Страница 66: ...ing the linefeed Carriage returns are discarded Commands are case sensitive Commands must start with a dot Optional parameters are separated by spaces or semicolons The instrument will send the OK prompt after every command or response Show hostname The command show hostname will show the network hostname of the instrument The hostname is a text string consisting of the instrument type and a 6 cha...

Страница 67: ...a unique record ID to specify the selected type Message types The following message types are defined Message type 0 Simple status message 1 Reserved for future expansion Status messages Status messages are sent automatically every minute when an averaging interval ends or more often when instrument or system status changes ...

Страница 68: ...ees north at end of averaging interval 10 Longitude Longitude in degrees east at end of averaging interval 11 Air pressure Derived air pressure at end of averaging interval 12 Irradiance diffuse Mean diffuse irradiance in W m2 13 Irradiance direct Mean direct irradiance in W m2 14 Irradiance global Mean global irradiance in W m2 15 Temperature pyranometer Mean temperature of pyranometer in degrees...

Страница 69: ...e oldest connection is determined on base of the alive time The alive time is initially set to the connection accept time and is updated when any character is received from the HOST In order to keep the connection alive at the application level the HOST may send a character to the server regularly However this is not mandatory The HOST application must be able to handle disconnection or shutdown o...

Страница 70: ...downloaded over the web interface sep SystemName RaZON150002 Serialnumber 150002 Date dd mm yyyy Time hh mm ss SolarAzimuth Degrees SolarZenith Degrees Latitude Degrees Longitude Degrees AirPressure mBar IrrDiffuse W m2 TempDiffuse Degrees celcius IrrDirect W m2 TempDirect Degrees celcius IrrGlobal W m2 Sunshine number of seconds in this interval SunshineDuration hours of today GlobalSum KWh m2 20...

Страница 71: ...71 Example of a logged ASCII data file via Wi Fi Logging Eport Log File ...

Страница 72: ...Kipp Zonen B V Delftechpark 36 2628 XH Delft T 31 15 2755 210 info kippzonen com www kippzonen com 0382899 ME KZ RE ma_RaZON EN_A4_200803 Meteorology Division of ...

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