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Technical Description - SMA Cluster Controller Modbus® Interface

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1. City Country Code Time zone Chennai Kolkata Mumbai New 9539 UTC 05 30 Abu Dhabi Muscat 9503 UTC 04 00 Delhi i 09 Chi Dallas City Adelaide 9513 UTC 09 30 allas Kansas City re 26500 Alaska 9501 UTC 09 00 Winnipeg Amman 9542 UTC 02 00 Chihuahua La Paz Mazatlan 9587 UTC 07 00 Amsterdam Berlin Bern Rome Sire Darwin 9506 UTC 09 30 Stockholm Vienna Denver Salt Lake City Calgary 9547 UTC 07 00 Arizona 9574 UTC 07 00 Dublin Edinburgh Lisbon London 9534 UTC 00 00 Astana Dhaka 9515 UTC 06 00 Fiji Marshall Islands 9531 UTC 12 00 Asuncion 9594 UTC 04 00 Georgetown La Paz San Juan 9591 UTC 04 00 Athens Bucharest Istanbul 9537 UTC 02 00 Greenland 9535 UTC 03 00 Atlantic Canad 9505 UTC 04 00 Guadalajara Mexico City Canada vadalajara Mexico City EO UTC On Auckland Wellington 9553 UTC 12 00 Monterrey Azores 9509 UTC 01 00 Guam Port Moresby 9580 UTC 10 00 Bagdad 9504 UTC 03 00 Harare Pretoria 9567 UTC 02 00 Baku 9508 UTC 04 00 Hawaii 9538 UTC 10 00 Jakarta 9566 UTC 07 00 P Kiev Riga Sofia Tallinn 9432 UTC 02 00 Beijing Chongqing Hong Kong Unius s 08 r mqi 4822 Hobart 9570 UTC 10 00 Beirut 9546 UTC 02 00 Indiana East 9573 UTC 05 00 Belgrade Bratislava Budapest International Date Line West 9523 UTC 12 00 9517 UTC 01 00 Ljubljana Prague Irkutsk 9555 UTC 08 00 Bogot Lima Quito 9563 UTC 05 00
2. 34625 Ambient temperature F 2 532 TEMP RO 34627 Ambient temperature K 2 532 TEMP RO 34629 PV module temperature F 2 532 TEMP RO 34631 module temperature 2 532 TEMP RO 34633 Wind speed km h 2 U32 FIX RO 34635 Wind speed mph 2 U32 FIX1 RO 34637 Analog current input 1 mA 2 32 FIX2 RO 34639 Analog current input 2 mA 2 32 FIX2 RO 34641 Analog current input 2 532 FIX2 RO 34643 Analog current input 4 mA 2 32 FIX2 RO 34645 Analog voltage input 1 V 2 532 FIX2 RO 34647 Analog voltage input 2 V 2 532 FIX2 RO 34649 Analog voltage input 3 V 2 532 FIX2 RO 34651 Analog voltage input 4 V 2 532 FIX2 RO Digital input group 1 coded 2061 011 DIA as status 2062 011 014 311 Open 2063 DI2 2055 DII 2064 DI2 34653 2056 011 DI2 2065 DI2 014 2 U32 ENUM RO 2057 DI1 DI2 2066 DI2 014 2058 011 DI2 DI4 2067 DI3 2059 011 DI2 014 2068 013 014 2060 DI1 DIS 2069 DIA Technical Description ClusterController_Modbus TB en 15 29 SMA Modbus Profile Assignment Tables SMA Solar Technology AG Digital input group 2 coded 2076 DI5 DI7 DI8 as status 2077 DI5 DI8 311 Open 2078 2070 DI5 2079 DI6 DI7 34655 2071 015 Di 2080 DIZ DI8 U32 ENUM RO 2072 DI5 016 DIZ 2081 DI DI8 2073 DI5 DI DIZ DI8 2082 DI7 2074 DI5 016 DI8 2083 DI7 DI8 2075 DI5 DI7 2084 DI8 4000
3. Type Description NaN value 016 Aword 16 bit WORD OxFFFF or 1 S16 A signed word 16 bit WORD 0x8000 U32 A double word 32 bit DWORD OxFFFF FFFF or 1 U32 For status values only the lower 24 bits of a double word 32 OxFFFF FD or bit DWORD are used OxFFFF FE or 1 532 A signed double word 32 bit DWORD 0x8000 0000 064 A quad word 64 bit 2 x DWORD OxFFFF FFFF FFFF FFFF or 1 3 7 2 16 Bit Integer Values 16 bit integers are stored in a Modbus register Modbus register 1 Byte 0 1 Bits 8 to 15 0107 3 7 3 32 Bit Integer Values 32 bit integers are stored in two Modbus registers Modbus register 1 2 Byte 0 1 2 3 Bits 24 to 31 16 to 23 810 15 Oto7 16 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG 3 7 4 64 Bit Integer Values 64 bit integers are stored in four Modbus registers Product Description Modbus register 1 2 Byte 0 1 2 3 Bits 56 to 63 48 to 55 40 to 47 32 to 39 Modbus register 4 Byte 4 5 6 7 Bits 24 to 31 16 to 23 8 to 15 Oto7 3 8 SMA Data Formats The following SMA data formats describe how SMA data is to be interpreted The data formats are important for example for the display of data or for its further processing The SMA data formats are listed in the Format column of the assignment tables Format Explanation Date Time DT Date time in accordance with country setting Transmission as UTC seconds since 1970 01 01
4. 10 Data block aono 14 Associated registers 15 Number of Modbus registers 15 Writing multiple registers 15 Data mati epi testes 17 Status values 16 Data 56 Data transfer Capatity eee 56 Interval 56 Transfer break Data types 16 Data volume Register 15 Deactivate usrplant xml sse 23 Default settings Saving XML files sss 24 Delete Unit ee Heg 24 Device parameters Flash 8 30 56 Double assignment Unit 21 bias 17 D ration 17 DWOR ette 16 17 59 Event numbers Information on decrypting 54 59 Extract Firmware version esses 18 F A O n 7 Figure Technical Description SMA Solar Technology AG SMA devices on Modbus data range 10 Firmware version Extract acce i RET 18 b ed S ER A 17 dt EE 17 A PE E o o tent dt dera 17 18 Flash memory Device parameters 8 30 56 Format Table column sss 25 18 G trees Cluster Controller
5. sss 22 AAT OVerView scere E te ces 22 Technical Description ClusterController_Modbus TB en 15 3 SMA Solar Technology AG 10 4 4 2 Structure of the XML File usrplant xml een 4 4 3 Activating and Deactivating usrplant xml see 4 5 Resetting the Cluster Controller to the Default Settings SMA Modbus Profile Assignment Tables s 25 5 1 Information on the Assignment Tables 5 2 Gateway Unit IDs T iuis citet eee ee eee 5 3 PV System Parameters Unit ID 2 5 4 SMA Devices Unit ID 3 to 247 User Defined Modbus Profile eere entes 51 6 1 Structure of the XML File for the User Defined Modbus Profile 5 6 2 Example of a User Defined Modbus Profile sss 52 6 3 Activating and Deactivating User Defined Modbus Profile 53 Troubleshooting eti itd dine eid PR 54 Technical D lire paie bine tix doni on 55 8 1 Supported SMA 55 8 2 Number of SMA 55 8 3 Modbus Communication Ports essere 55 8 4 Data Processing and Time Behavior 56 8 5 Number Codes of the Time Zones 57 8 6 Frequently Used Number Codes ENUM sees 59 A 60 Indes
6. 56 Signal run time Cluster 56 Skills Qualified 8 SMA Cluster Controller PV system 11 SMA data formats sss 17 SMA data types 16 SMA devices eode e 13 SMA fieldbus 22 7 10 68 ClusterController_Modbus TB en 15 SMA Solar Technology AG SMA inverters Supported sod 55 SMA Modbus profile Assignment 25 Explanation sss 10 Status values Data format eet eee 16 Supported SMA 55 SUS yA Dinamico tete di 7 20 Sysplantoxinl cae nete e edens 22 System stability sss 56 T Table Common address of all SMA devices 31 Time zones Identification eerte 57 Number codes 57 Topology Trademarks Double 21 Incorrect data 21 Terminology s 13 Unit ID 1 13 26 Unit ID 2 13 28 Unit D 3 bis 2473 eet 13 cmn caf eoe 13 Available and Reserved 13 User defined Modbus profile 10 Technical Description SMA Solar Technology AG usrplant xml se 22 AGtiVate 23 5
7. UI 63 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG Information on this Document 1 Information on this Document Validity This document is applicable for device type CLCON 10 and device type CLCON S 10 SMA Cluster Controller It describes the Modbus interface of the SMA Cluster Controller the variant of the Modbus Application Protocol implemented by SMA and the corresponding parameters measured values and data exchange formats Not available in all countries see the SMA Cluster Controller product page at www SMA Solar com This document does not contain any details on the parameters and measured values provided by SMA devices for operating parameters measured values see the Technical Description Meas ured Values and Parameters at www SMA Solar com This document does not contain any information on software which can communicate with the Modbus interface see the software manufacturer s manual Target Group This document is intended for qualified persons Only persons with appropriate skills are allowed to perform the tasks described in this document see Section 2 2 Skills of Qualified Persons Additional Information SMA Documents Additional information is available at www SMA Solar com Document title Document type SMA Cluster Controller Installation Manual SMA Cluster Controller User Manual Measured Values and Parameters Technical Des
8. Reactive power of external grid connection of line conductor C VAr 30899 2 U32 FIXO RO 30901 Power frequency of external grid connection Hz 2 U32 FIX2 RO Voltage of external grid connection of line conductor 30903 U32 FIX2 RO Voltage of external grid connection of line conductor 30905 2 U32 FIX2 RO B Voltage of external grid connection of line conductor 30907 2 U32 FIX2 RO C V 40 ClusterController Modbus TB en 15 Technical Description SMA Solar Technology AG SMA Modbus Profile Assignment Tables Current of external grid connection of line conductor 30909 A A 2 532 FIX3 RO Current of external grid connection of line conductor A 30911 32 FIX3 RO Current of external grid connection of line conductor 30913 32 FIX3 RO C A Electricity supply status 303 Off 30915 1461 Utility grid connected 2 U32 ENUM RO 1462 Backup not available 1463 Backup Generator state 303 Off 1392 Error 1787 Initialization 1788 Ready 1789 Warm up 30917 1790 Synchronize 2 U32 ENUM RO 1791 Activated 1792 Resynchronization 1793 Generator separation 1794 Shutoff delay 1795 Blocked 1796 Blocked after error Operating mode of static voltage stability with Q at Night 303 Off 1069 Reactive power voltage characteristic curve 30919 1070 Reactive power Q direct setpoint 1071 Reactive power const Q kVAr 1072 R
9. 1508 90 of the DC switch cycles reached 1509 100 of the DC switch cycles reached 30331 1694 DC switch tripped to 1695 DC switch waiting for connection 2 U32 ENUM RO 30393 1696 DC switch blocked by spindle 1697 DC switch manually blocked 1698 DC switch tripped three times 1699 DC switch is defective 30513 Total AC energy fed in on all line conductors Wh 4 U64 FIXO RO 34 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG SMA Modbus Profile Assignment Tables Energy fed in on the current day on all line conduc 30517 tors Wh 4 064 FIXO RO 30521 Operating time s 4 U64 Duration RO 30525 Feedin time s 4 U64 Duration RO 30529 Total AC energy fed in on all line conductors Wh 2 U32 FIXO RO 30531 Total AC energy fed in on all line conductors kWh 2 U32 FIXO RO 30533 Total AC energy fed in on all line conductors MWh 2 U32 FIXO RO Energy fed in on the current day on all line conduc 2 TA E i tors Wh 40537 Energy fed in on the current day on all line conduc tee Ne tors kWh 30530 Energy fed in on the current day on all line conduc ae RO tors MWh 30541 Operating time s 2 U32 Duration RO 30543 Feedin time s 2 U32 Duration RO 30545 Operating time of interior fan 1 s 2 U32 Duration RO 30547 Operating time of interior fan 2 s 2 U32 Duration RO 30549 Operating time of heat sink fan 5
10. 2 U32 Duration RO 30559 Number of events at user level 2 U32 FIXO RO 30561 Number of events at installer level 2 U32 RO 30565 Number of generator starts 2 U32 FIXO RO 30567 Meter for battery charging ampere hours Ah 2 U32 FIXO RO 30569 Meter for battery discharging in ampere hours Ah 2 U32 FIXO RO 30571 Meter reading consumption meter Wh 2 U32 FIXO RO 30573 Operating time of generator 5 2 U32 Duration RO 30575 Released energy from generator Wh 2 U32 FIXO RO 30577 Purchased electricity today Wh 2 U32 FIXO RO 30579 Feedin today Wh 2 U32 FIXO RO Technical Description ClusterController_Modbus TB en 15 35 SMA Modbus Profile Assignment Tables SMA Solar Technology AG 30581 Meter reading of purchased electricity meter Wh U32 FIXO RO 30583 Meter reading of grid feed in meter Wh U32 FIXO RO 30585 Power outage time s U32 Duration RO 30587 Meter reading of PV production meter Wh U32 FIXO RO 30589 Total increased selfconsumption Wh U32 FIXO RO 30591 Increased self consumption today Wh U32 FIXO RO 30593 Total energy consumed internally Wh U32 FIXO RO 30595 Consumed energy Wh U32 FIXO RO 30597 Fed energy Wh U32 FIXO RO 30599 Number of grid connections U32 FIXO RO 30769 DC current input A 532 FIX3 RO 30771 DC voltage input V 532 FIX2 RO 30773 DC power input W 32 FIXO RO 30775 Active power on all line conductors 532 FIXO RO 30777 Active po
11. Hz 40127 Voltage monitoring generator 2 U32 FIX2 RW maximum reverse power W Voltage monitoring generator 40129 2 032 Duration RW 40131 Grid connection point nominal current A 2 U32 FIX2 RW 40133 Utility grid nominal voltage V 2 U32 FIXO RW 40135 Nominal frequency Hz 2 U32 FIX2 RW Acknowledge generator errors 40137 2 U32 ENUM RW 26 Acknowledge error 40141 Maximum start attempts after error 2 U32 FIXO RW Active power setpoint A for operating mode Active 40743 power limitation P through PV system control 2 S32 FIX2 RW Reactive current setpoint A for the operating mode Specification by system control 40145 2 S32 FIX2 RW Generator active power limitation A for operating 40147 mode Active power limitation P through system con 2 U32 FIX2 RW trol Active power setpoint W for operating mode Active power limitation P through system control 40149 2 32 FIXO RW System control active and reactive power control via communication 40151 802 Active 2 U32 ENUM RW 803 Inactive Reactive power setpoint VAr for operating mode Specification by system control 40153 2 32 FIXO RW 48 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG SMA Modbus Profile Assignment Tables Operating mode of the reactive power control 303 Off 1069 Reactive power voltage characteristic curve 1070 Reactive
12. o ne 23 usrprofilerl e ed 51 V Validity of this 5 Valve range ses ii 31 virtual modbusprofile 51 WORD crt canes 16 Write Multiple Registers 15 Write Single 15 X XML channel nn 51 Technical Description Index SUSYIQ ea unitid virtual modbusprofile XML file sysplant xml 22 usrplant xml usrprofile 491 XML files Default settings 24 DOVE esent iim eo ed e 24 ClusterController_Modbus TB en 15 69 SMA Solar Technology www SMA Solar com
13. Duration Duration Time in seconds in minutes or in hours depending on the Modbus register Coded numerical values The breakdown of the possible codes can be found directly ENUM under the designation of the Modbus register in the SMA Modbus profile assign ment tables see also Section 8 6 Frequently Used Number Codes page 59 FIXO Factor 1 Decimal number commercially rounded no decimal place Factor 0 1 FIX Decimal number commercially rounded one decimal place Factor 0 01 FIX2 Decimal number commercially rounded two decimal places Technical Description ClusterController_Modbus TB en 15 17 Product Description SMA Solar Technology AG Factor 0 001 FIX3 Decimal number commercially rounded three decimal places FW Firmware version see Firmware version extract below RAW Text or number A RAW number has no decimal places and no thousand or other separation indicators Temperature TEMP Temperature values are stored in special Modbus registers in degrees Celsius C in degrees Fahrenheit F or in Kelvin K The values are commercially rounded with one decimal place Firmware version extract format FW From the delivered DWORD four values are extract ed The Major and Minor values are contained BCD coded in bytes 1 and 2 Byte 3 contains the Build value not BCD coded Byte 4 contains the Release Type value according to the following table Release type Release
14. H Hierarchical PV system structure 10 Identification Time zones 57 Intended 8 A te nerit 9 IP address Cluster Controller 20 M Modbus Address range 2 14 Implementation 2 14 Parameter change 2 56 ss 2 14 Ports 55 Reaction time of interface 2 56 Read Holding Registers 15 Read Input 15 Read Write Multiple Registers 15 Regisler 14 Specification sss 14 te ttes 55 UJ DP Portk iens tentis 55 Technical Description Index Write Multiple Registers 15 Write Single 15 Modbus activation Background information 19 Modbus address Reassignment seen 51 Modbus 13 Modbus data Reading and 15 Modbus profile User defined Modbus registers Data 15 Motorola format 14 NaN 255 Se er 19 OvetVIew s e detiene enn ette 16 Network 10 Number code Table 25 Number codes ENUM 59 2 57 Number of SMA devices 55
15. Technology AG SMA Modbus Profile Assignment Tables External measurement of the insulation resistance 40020 303 Off 2 U32 ENUM RW 308 On Operating status 295 MPP 381 Stop 1392 Error 40029 1393 Wait for DC start conditions 2 032 ENUM RO 1467 Start 1469 Shut down 1480 Wait for electric utility company 2119 Derating 40031 Nominal capacity of the battery Ah 2 U32 FIXO RO 40033 Maximum battery temperature C 2 032 TEMP RW Battery type 1782 Valveregulated lead acid battery VRLA 40035 1783 Flooded lead acid battery FLA 2 032 ENUM RO 1784 Nickel Cadmium NiCd 1785 Lithium lon Li lon 40037 Nominal battery voltage V 2 U32 FIXO RO 40039 Time for boost charge of battery min 2 U32 Duration RW 40041 Time for equalization charge of battery h 2 U32 Duration RW 40043 Time for full charge of battery h 2 U32 Duration RW 40045 Maximum battery charging current A 2 U32 FIX3 RW 40047 Nominal generator current A 2 U32 FIX3 RW Automatic generator start 40049 1129 Yes 2 U32 ENUM RW 1130 No Battery state of charge limit for 40051 2 U32 FIXO RW generator shutdown Battery state of charge limit for 40053 2 U32 FIXO RW generator start Technical Description ClusterController_Modbus TB en 15 45 SMA Modbus Profile Assignment Tables SMA Solar Technology AG Manual generator control 40055 381 Stop 2 U32 ENUM RW 1467 Start
16. channel unitid 3 source 30775 destination 0 gt lt channel unitid 3 source 30805 destination 2 gt channel unitid 3 source 308 13 destination 4 gt channel unitid 4 source 30775 destination 6 gt channel unitid 4 source 30805 destination 8 gt channel unitid 4 source 308 13 destination 10 gt lt virtual_modbusprofile gt 52 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG User Defined Modbus Profile 6 3 Activating and Deactivating User Defined Modbus Profile To activate your user defined Modbus profile upload the file usrprofile xml to the Cluster Control ler restart it and activate the user defined Modbus profile as described below If the usage of the user defined Modbus profile on the Cluster Controller is deactivated the user defined assignments are lost and only the SMA Modbus profile remains active i Uploading and downloading XML files For more information on uploading and downloading XML files via the user interface see the SMA Cluster Controller user manual Activating a User Defined Modbus Profile You activate a user defined Modbus profile by creating a device entry with the attribute susyid 0 in file usrplant xml you can find more information on the file usrplant xml in Section 4 4 Changing Unit IDs via the XML File usrplant xml page 22 Example The following device entry activates a user defined Modbus profile tha
17. documentation Keep the documentation in a convenient place for future reference 2 2 Skills of Qualified Persons The tasks described in this document must be performed by qualified persons only Qualified per sons must have the following skills Knowledge of IP based network protocols Training in the installation and configuration of IT systems Knowledge of and compliance with this document and all safety precautions 2 3 Safety Precautions This section contains safety precautions that must be observed at all times when working on or with the product To prevent personal injury and property damage and to ensure long term operation of the product read this section carefully and follow all safety precautions at all times Damage to SMA inverters The parameters of the SMA inverters that can be changed with writable Modbus registers RW are intended for long term storage of device settings Cyclical changing of these parameters leads to destruction of the flash memory of the devices Device parameters must not be changed cyclically Contact the SMA Service Line if you would like to automate the remote control of your PV system see Section 9 Contact page 60 8 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG Safety 2 4 Information on Data Security 1 Data security in Ethernet networks You can connect the Cluster Controller to the Internet When conn
18. increased by 30007 2 U32 RAW RO the Cluster Controller if new data is available Device class 8000 All devices 8001 Solar inverters 8002 Wind turbine inverter 30051 8007 Battery inverter 2 032 ENUM RO 8033 Consumer 8064 Sensor system in general 8065 Electricity meter 8128 Communication products 30193 UTC system time s 2 U32 DT RO Total energy fed in across all line conductors in Wh 30513 4 064 FIXO RO accumulated values of the inverters Energy fed in on current day across all line conduc 30517 4 U64 FIXO RO tors in Wh accumulated values of the inverters Current active power on all line conductors in W 30775 E 2 532 FIXO RO accumulated values of the inverters Reactive power on all line conductors in VAr 30805 2 532 FIXO RO accumulated values of the inverters 26 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG SMA Modbus Profile Assignment Tables Digital input group 1 coded 2062 DI1 DI4 as status 2063 DI2 311 Open 2064 DI2 DI3 2055 DII 2061 011 DI3 014 34653 2056 011 012 2065 DI2 DIA 2 032 ENUM 2057 011 012 2066 012 DIA 2058 DI1 012 DIA 2067 DI3 2059 011 DI2 014 2068 DI3 DIA 2060 DI1 DI3 2069 DIA Digital input group 2 coded 2076 DI5 DI7 DI8 as status 2077 DI5 DI8 311 Open 2078 DI6 2070 DI5 2079 016 DI7 34655 207
19. must also change the corresponding Modbus port of a connected Modbus master system Otherwise the Cluster Controller can no longer be accessed via the Modbus protocol Technical Description ClusterController_Modbus TB en 15 55 Technical Data SMA Solar Technology AG 8 4 Data Processing and Time Behavior In this Section you can find typical data processing and reaction times of the Cluster Controller Modbus interface and time details for saving parameters in SMA devices Damage to SMA inverters The parameters of the SMA inverters that can be changed with writable Modbus registers RW are intended for long term storage of device settings Cyclical changing of these parameters leads to destruction of the flash memory of the devices Device parameters must not be changed cyclically Contact the SMA Service Line if you would like to automate the remote control of your PV system see Section 9 Contact page 60 Signal Run Time through the Cluster Controller The signal run time through the Cluster Controller is a maximum of 100 ms The signal run time is the time required by the Cluster Controller to process incoming Modbus commands and to forward them to the devices in the PV system Data Transfer Interval via the Modbus Protocol For system stability reasons the time period between data transfers via the Modbus protocol must be at least ten seconds No more than 30 parameters and measured values should b
20. not contained in a Modbus profile or if a Modbus com mand is incorrect a Modbus exception is generated Modbus exceptions are also generated when write access occurs on a read only Modbus register or read access occurs on a write only Modbus register Reading or writing of data blocks To prevent inconsistencies data blocks of associated registers or register ranges must be read or written in a single step The 4 bytes of a 64 bit Modbus register must for example be read with an operation in a 64 bit SMA data type Error message on writing multiple Modbus registers as a data block If multiple registers are written as a data block Modbus commands 0x10 and 0x17 and an error occurs during writing the faulty register as well as all the subsequent registers in the packet will be rejected In the event of an error a Modbus exception will be generated Modbus exceptions Modbus exceptions see Modbus Application Protocol Specification at http www modbus org specs php Number of Modbus registers transferable as data block per command Technical Description ClusterController_Modbus TB en 15 15 Product Description 3 7 SMA Data Types 3 7 1 SMA Data Types and NaN Values The following table shows the data types used in the SMA Modbus profile and shows possible NaN values The SMA data types are listed in the Type column of the assignment tables They describe the data widths of the assigned values SMA Solar Technology AG
21. numbers of central inverters contact the SMA Service Line see Section 9 Contact page 60 54 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG Technical Data 8 Technical Data 8 1 Supported SMA Inverters All inverters with integrated or retrofitted Speedwire Webconnect interfaces are supported Information on whether an inverter has an integrated Speedwire Webconnect interface or can be retrofitted with a Speedwire Webconnect interface can be found on the product page of the re spective inverter at www SMA Solar com 8 2 Number of SMA Devices The following table contains details on the maximum number of SMA devices that can be operated with the Cluster Controller Device type Maximum number of SMA devices CLCON 10 75 CLCON S 10 25 8 3 Modbus Communication Ports The following table shows the default settings of the supported network protocols Network protocol Communication port default setting TCP 502 UDP 502 Use free communication ports You should only use free communication ports The following range is generally available 49152 to 65535 You can find more information on occupied ports in the database Service Name and Transport Protocol Port Number Registry at http www iana org assignments service names port numbers service names portnumbers xml i Changing the communication port If you change one of the Modbus ports of the Cluster Controller you
22. power Q direct setpoint 1071 Reactive power const Q kVAr 1072 Reactive power Q setpoint via system con trol 49200 1073 Reactive power Q P 2 moe ERUM 1074 cos direct setpoint 1075 cos setpoint via system control 1076 cos characteristic curve 1387 Reactive power Q setpoint via analog input 1388 cos q setpoint via analog input 1389 Reactive power voltage characteristic curve Q V with hysteresis and deadband 40202 Reactive power setpoint VAr 2 32 FIXO RW 40204 Reactive power setpoint 2 32 FIX1 RW 40206 Setpoint of cos 2 32 FIX2 RW Setpoint of excitation type of cos 9 40208 1041 Leading 2 032 ENUM RW 1042 Lagging Operating mode of active power limitation 303 Off 1077 Active power limitation P W 40210 1078 Active power limitation of PMAX 2 U32 ENUM RW 1079 Active power limitation P via system control 1390 Active power limitation P via analog input 1391 Active power limitation P via digital inputs 40212 Active power setpoint W 2 U32 FIXO RW 40214 Active power setpoint 95 2 U32 FIXO RW Operating mode of active power limitation at overfrequency P f 40216 2 U32 ENUM RW 303 Off 1132 Linear gradient for instantaneous power Technical Description ClusterController_Modbus TB en 15 49 SMA Modbus Profile Assignment Tables SMA Solar Technology AG Configuration of the linear gradient of the instantane 40218 ous power D
23. type coding Explanation 0 N No revision number 1 E Experimental release 2 A Alpha release 3 B Beta release 4 R Release 5 S Special release 5 As number No special interpretation Example Firmware version of the product 1 5 10 R Values from DWORD Major 1 Minor 5 Build 10 Release type 4 Hex Ox1 Ox5 OxA 0x4 18 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG Commissioning and Configuration 4 Commissioning and Configuration 4 1 Commissioning Steps and Requirements Requirements O The devices of the PV system must be connected to the Cluster Controller and the Clus ter Controller must be commissioned for information on connection and commissioning see the Cluster Controller installation manual O You must log as installer to the Cluster Controller for login to or logout of the Clus ter Controller see the Cluster Controller user manual Procedure l Activate the Modbus server s and if required configure the communication ports for Modbus configuration see the Cluster Controller user manual i Allocation of unit IDs by activation of the Modbus servers Upon activation of the Modbus servers of the Cluster Controller unit IDs are assigned to the SMA devices already connected to the Cluster Controller The protocol types TCP UDP can be activated individually or together If one or both of the servers are deactivated and reactivated the previously assigned Modb
24. 059 012 DIA 2068 014 2060 DI1 2069 DIA Technical Description ClusterController_Modbus TB en 15 43 SMA Modbus Profile Assignment Tables SMA Solar Technology AG Digital input group 2 coded 2076 015 DI7 DI8 as status 2077 DI5 DI8 311 Open 2078 DI6 2070 DI5 2079 DI6 DIZ 34655 2071 015 016 2080 16 DIZ DI8 2 U32 ENUM RO 2072 015 016 DIZ 2081 DI DI8 2073 DI5 016 DIZ DI8 2082 DI7 2074 DI5 016 DI8 2083 DI7 DI8 2075 DI5 DI7 2084 DI8 35377 Number of events for user 4 064 FIXO RO 35381 Number of events for installer 4 U64 FIXO RO 40001 Reading and setting the UTC system time s 2 U32 DT RW 40003 Reading and setting the time zone see Section 8 5 2 032 ENUM RW Number Codes of the Time Zones page 57 Automatic daylight saving time conversion active 40005 1129 Active 2 U32 ENUM RW 1130 Not active Operating state 295 MPP 381 Stop 443 Constant voltage 1855 Stand alone operation 3128 Remote control by SMA Service 40009 2 U32 ENUM RW Acknowledgement 40011 2 U32 ENUM RW 26 Acknowledge error Set language 785 Portuguese 777 German 786 Dutch 778 English 796 Slovenian 779 Italian 797 Bulgarian 40013 780 Spanish 798 Polish 2 U32 ENUM RW 781 French 799 Japanese 782 Greek 801 Thai 783 Korean 804 Hebrew 784 Czech 44 ClusterController_Modbus TB en 15 Technical Description SMA Solar
25. 1 DI5 016 2080 DI7 DI8 2 032 ENUM RO 2072 015 016 DI7 2081 DI DI8 2073 DI5 DI DI8 2082 DI7 2074 DI5 DI8 2083 DI7 DI8 2075 DI5 DI7 2084 DI8 40001 Set UTC plant time in s 2 U32 DT RW Unit ID assignment SMA devices 42109 Device 1 SUSy ID U16 RAW RO 42110 Device 1 serial number 2 U32 RAW RO 42112 Device 1 unit ID e g 3 1 016 RAW RW 42113 Device 2 SUSy ID 1 916 RAW RO 42114 Device 2 serial number 2 U32 RAW RO 42116 Device 2 unit ID e g 4 1 016 RAW RW 43085 Device 245 SUSy ID 1 Ul RAW RO 43086 Device 245 serial number 2 U32 RAW RO 43088 Device 245 unit ID e g 247 U16 RAW RW Technical Description ClusterController_Modbus TB en 15 27 SMA Modbus Profile Assignment Tables SMA Solar Technology AG 1 unitib 255 For unit ID 255 observe Section 4 3 Changing Unit IDs via the Gateway page 20 i Modbus exception on accessing empty assignments If in the address range 42109 to 43088 individual Modbus registers or a data block are accessed which do not contain any assignment of unit IDs to SMA devices a Modbus exception is generated 5 3 PV System Parameters Unit ID 2 In the following table you can find the system parameters that you can access using unit ID 2 The system parameters represent measured values and parameters of the Cluster Controller and also PV system devices that are connected via the Modbus protocol Parameters such as time set
26. 1 Reading and setting the UTC system time s U32 DT RW 40003 Reading and setting the time zone see Section 8 5 U32 ENUM RW Number Codes of the Time Zones page 57 Automatic daylight saving time conversion active 40005 112 Active U32 ENUM RW 1130 Not active 5 4 SMA Devices Unit ID 3 to 247 Damage to SMA inverters The parameters of the SMA inverters that can be changed with writable Modbus registers RW are intended for long term storage of device settings Cyclical changing of these parameters leads to destruction of the flash memory of the devices Device parameters must not be changed cyclically i Availability and values of the Modbus registers Depending on the SMA device used only certain Modbus registers are available operating parameters measured values see the technical description Measured values and parame ters at www SMA Solar com When a Modbus register which is not available for an SMA device is accessed a Modbus exception is generated see 3 6 Reading and Writing of Data page 15 When a Modbus register containing a non permitted value is accessed a NaN corresponding to the type is returned see Section 3 7 1 SMA Data Types and NaN Values page 16 30 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG SMA Modbus Profile Assignment Tables 1 Value range of cos The value range of cos depends on the device The val
27. 13 Total irradiation on the sensor surface W m U32 FIXO RO 34615 Wind speed m s U32 FIX RO 34617 Humidity U32 FIX2 RO 34619 Air pressure Pa U32 FIX2 RO N NI NINI NIN NTR HR RI ND 34621 PV module temperature 532 TEMP RO 42 ClusterController Modbus TB en 15 Technical Description SMA Solar Technology AG SMA Modbus Profile Assignment Tables Total irradiation on the external irradiation sen 34623 2 U32 FIXO RO sor pyranometer W m 34625 Ambient temperature F 2 532 TEMP RO 34627 Ambient temperature K 2 532 TEMP RO 34629 PV module temperature F 2 532 TEMP RO 34631 module temperature 2 532 TEMP RO 34633 Wind speed km h 2 U32 FIX1 RO 34635 Wind speed mph 2 U32 FIX1 RO 34637 Analog current input 1 mA 2 32 FIX2 RO 34639 Analog current input 2 mA 2 32 FIX2 RO 34641 Analog current input 3 mA 2 32 FIX2 RO 34643 Analog current input 4 mA 2 32 FIX2 RO 34645 Analog voltage input 1 V 2 532 FIX2 RO 34647 Analog voltage input 2 V 2 532 FIX2 RO 34649 Analog voltage input 3 2 532 FIX2 RO 34651 Analog voltage input 4 V 2 532 FIX2 RO Digital input group 1 coded 2061 DI1 DIA as status 2062 011 014 311 Open 2063 DI2 2055 DII 2064 DI2 34653 2056 DI2 2065 DI2 014 2 U32 ENUM RO 2057 DI1 DI2 2066 DI2 014 2058 011 DI2 013 014 2067 2
28. 2 32 FIXO RO 30817 Apparent power of line conductor L2 VA 2 32 FIXO RO 30819 Apparent power of line conductor L3 VA 2 32 FIXO RO 30821 Total displacement power factor of all line conductors 2 U32 FIX2 RO Excitation type of cos 30823 1041 Leading 2 U32 ENUM RO 1042 Lagging Operating mode of the reactive power regulation 303 Off 1069 Reactive power voltage characteristic curve Q v 1070 Reactive power Q direct setpoint 1071 Reactive power const Q kVAr 1072 Reactive power Q setpoint via system con trol 30825 2 U32 ENUM RO 1073 Reactive power Q P 1074 cos g direct setpoint 1075 cos setpoint via system control 1076 cos characteristic curve 1387 Reactive power Q setpoint via analog input 1388 cos setpoint via analog input 1389 Reactive power voltage characteristic curve Q V with hysteresis and deadband 30827 Reactive power setpoint VAr 2 32 FIXO RO 30829 Reactive power setpoint 76 2 32 FIX1 RO Technical Description ClusterController_Modbus TB en 15 37 SMA Modbus Profile Assignment Tables SMA Solar Technology AG 30831 Setpoint of cos 2 32 FIX2 RO Setpoint excitation type of cos 30833 1041 Leading 2 U32 ENUM RO 1042 Lagging Operating mode of active power limitation 303 Off 1077 Active power limitation P W 30835 1078 Active power limitation P of PMAX 2 U32 ENUM RO 1079 Active power limitation P via system control 13
29. 90 Active power limitation P via analog input 1391 Active power limitation P via digital inputs 30837 Active power setpoint W U32 FIXO RO 30839 Active power setpoint U32 FIXO RO 32 FIX3 RO U32 FIXO RO 30843 Battery current A 30845 Current battery state of charge 30847 Current battery capacity 95 U32 FIXO RO 30849 Battery temperature C 532 TEMP NI N NI N NI NIN 30851 Battery voltage V U32 FIX2 RO Active battery charging mode 1767 Boost charge 30853 1768 Full charge 2 U32 ENUM RO 1769 Equalization charge 1770 Float charge 30855 Current battery charging voltage setpoint V 2 U32 FIX2 RO 30857 Number of battery charge throughputs 2 32 FIXO RO Battery maintenance charge status 803 Inactive 30859 2 U32 ENUM RO 1771 Charge with solar power 1772 Charge with solar and line current 30861 Load power 2 32 FIXO RO 30863 Current generator power W 2 U32 FIXO RO 38 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG SMA Modbus Profile Assignment Tables 30865 Power purchased electricity W 2 32 FIXO RO 30867 Power grid feed in W 2 32 FIXO RO 30869 Power PV generation W 2 32 FIXO RO 30871 Current self consumption W 2 U32 FIXO RO 30873 Current increased self consumption 2 532 FIXO RO Multifunction relay status 30875 51 Closed 2 U32 ENUM RO 311 Open Electricity s
30. Generator request via power on 40057 1129 Yes 2 U32 ENUM RW 1130 No 40059 Generator shutdown load limit W U32 FIXO RW 40061 Generator start load limit U32 FIXO RW U32 FW RO 40063 Firmware version of the central assembly U32 FW RO 40065 Firmware version of the logic component NIN 40067 Serial number U32 RAW RO Grid forming generator 1799 None 1801 Utility grid 1802 Utility grid and generator 40071 2 U32 ENUM RW 1803 Invalid configuration for the PV production meter Lower discharging limit 40073 2 U32 FIXO RW for increased self consumption Increased self consumption switched on 40075 1129 Yes 2 U32 ENUM RW 1130 No Initiate device restart 40077 2 U32 ENUM RW 1146 Execute 40079 Battery final cut off voltage V U32 FIX2 RW 40081 Maximum charge current of battery A U32 FIX3 RW 40083 Maximum discharge current of battery A U32 FIX3 RW 40085 Cell charging set voltage for boost charge V U32 FIX2 RW 40087 Cell charging set voltage for full charge V U32 FIX2 RW NI NIN 40089 Cell charging set voltage for equalization charge U32 FIX2 RW 46 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG SMA Modbus Profile Assignment Tables 40091 Cell charging set voltage for float charge V 2 U32 FIX2 RW 40093 Voltage
31. Islamabad Karachi 9579 UTC 05 00 Brasilia 9527 UTC 03 00 Jerusalem 9541 UTC 02 00 Brisbane 9525 UTC 10 00 Kabul 9500 UTC 04 30 Brussels Copenhagen Madrid Katmandu 9552 UTC 05 45 9560 UTC 01 00 Paris Krasnoyarsk 9556 UTC 07 00 Buenos Aires 9562 UTC 03 00 Kuala Lumpur Singapore 9544 UTC 08 00 Cairo 9529 UTC 02 00 Kuwait Riyadh 9502 UTC 03 00 Canberra Melbourne Sydney 9507 UTC 10 00 Magadan Solomon Islands New 9519 UTC 11 00 Cape Verde Islands 9511 UTC 01 00 Caledonia Caracas 9564 UTC 04 30 Manaus 9516 UTC 04 00 Casablanca 9585 UTC 00 00 Mid Atlantic 9545 UTC 02 00 Caucasus Standard Time 9582 UTC 04 00 Midway Islands Samoa 9565 UTC 11 00 Cayenne 9593 UTC 03 00 Minsk 9526 UTC 02 00 Central America 9520 UTC 06 00 Monrovia Reykjavik 9536 UTC 00 00 Technical Description ClusterController_Modbus TB en 15 57 Technical Data Montevideo 9588 UTC 03 00 Moscow St Petersburg Volgograd 9561 UTC 03 00 Nairobi 9524 UTC 03 00 New York Miami Atlanta Detroit 9528 UTC 05 00 Newfoundland 9554 UTC 03 30 Novosibirsk 9550 UTC 06 00 Nuku alofa 9572 UTC 13 00 Osaka Sapporo Tokyo 9571 UTC 09 00 Pacific USA Canada 9558 UTC 08 00 Perth 9576 UTC 08 00 Petropavlovsk Kamchatsky 9595 UTC 12 00 Port Louis 9586 UTC 04 00 Santiago 9557 UTC 04 00 Sarajevo Skopje Warsaw Zagreb 9518 UTC 01 00 Saskatchewan 9510 UTC 06 00 Seoul 9543 UTC 09 00 S
32. Parameter change Reaction 56 PDU Modbus i o ens 14 PDU data Number of Modbus registers 14 14 Physical reaction time Setpoint change 56 PMAX 7 TEP o 55 55 Power control and limitation 8 30 56 system 13 ClusterController_Modbus TB en 15 67 Index Tal arabes 28 PV system structure Hierarchical coacci n 10 PV system topology 10 SMA Cluster Controller 11 Q Qualified Persons Skills ast ete 8 R LE cH Mar 18 Reaction time of the Modbus interface 56 physical eom ets 56 Read Holding Registers 15 Read Input 15 Read Write Multiple Registers 15 Readind and writing Modbus 15 Reading out the 20 Reduktion Available data sss 10 Register Data block cocos 14 S Oia 16 532 intra 16 Salely detained ie 8 i eee 20 Setpoint change Physical reaction
33. UTF 8 plant version 001 gt lt plant gt Without the device tags in the file usrplant xml the system returns to the specifications saved in the file sysplant xml A changed usrplant xml becomes effective a few seconds ofter it is saved to the Cluster Controller Technical Description ClusterController_Modbus TB en 15 23 Commissioning and Configuration SMA Solar Technology AG 4 5 Resetting the Cluster Controller to the Default Settings By resetting the Cluster Controller to the default settings the previously assigned unit IDs are delet ed and reassigned file sysplant xml is therefore rewritten As a result all connected SMA de vices are assigned a new unit ID 1 Save data prior to restoring default settings By resetting the Cluster Controller to default settings the user defined PV system topology usrplant xml and the user defined Modbus profile usrprofile xml are deleted Save these files before resetting For further information on resetting to default settings and saving XML files refer to the SMA Cluster Controller user manual 24 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG SMA Modbus Profile Assignment Tables 5 SMA Modbus Profile Assignment Tables 5 1 Information on the Assignment Tables The following subsections are sorted by unit ID Each contains a table of the Modbus addresses which can be accessed under the corresponding unit ID The tables present t
34. _Modbus TB en 15 Technical Description SMA Solar Technology AG Index 10 Index Event numbers 54 ION e RI ven 35 Event numbers 59 BOS 77 casa TE EUN 35 Technical Description ClusterController_Modbus TB en 15 63 Index SMA Solar Technology AG 64 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG Index Technical Description ClusterController_Modbus TB en 15 65 Index 4022 init 50 40230 e eR EU RORIS 50 40232 50 A Activate usrplant xml sss 23 Addresss range Modbus ADR uei s Assignment 13 Header eet es 25 Available and reserved unit IDs 13 B Big Endian ron 14 C Change UnitID eas on nni 19 21 Change gateway Changing device parameters Flash 8 30 56 Not cyclical sss 8 30 56 CICOREIQ A tette bete Acme 55 5 0 iu i t s 55 Cluster Controller Gateway oo doen aon io 26 mocos 20 Signal run fime 56 Common address of all SMA devices Table iaa ainda 31 cos p Value ange it O 31 Cyclical changing prohibited 66 ClusterController_Modbus TB en 15 SMA Solar Technology AG Flash 8 30 56 D Data Presentation sss 17
35. a 8 2 2 Skills of Qualified Persons 8 2 3 Safety Precautions eU Deep te e ER He HEU 8 2 4 Information on Data Security coccion 9 3 Product Descriploh 10 Modbus Protocol ooo 10 3 2 SMA Modbus Prolile ttt tt dtt diente deeds 10 3 3 User Defined Modbus Profile 10 3 4 PV System Topology ida 10 3 5 Addressing and Data Transmission in the Modbus Protocol 13 3 51 S UhnitilDsz ni the dem eem 13 3 5 2 Assignment of the Modbus Register to Unit IDs 13 3 5 3 Modbus Register Address Register Width and Data Block 14 3 5 4 Address Range for Modbus Register 14 3 5 5 Data Trans miss Oese peiora et e ed e E RR OR 14 3 6 Reading Writing of Data coccion 15 2 7 SMA Pesada 16 3 7 1 SMA Data Types and NaN Values 16 3 7 2 16 Integer Values 3 7 3 32 Bit Integer Values 3 74 64 Bit Integer Values 3 9 SMA Data Formats ini a 4 Commissioning and Configuration 4 1 Commissioning Steps and Requirements sse 19 4 2 Information on Changing Unit enne 19 4 3 Changing Unit IDs via the Gateway seen 20 4 3 1 Reading out the 0 12022 0 0 200 0 0 00 066000040000 3 20 4 3 2 Changing a Unit ID in the Gateway sss 21 4 4 Changing Unit IDs via the XML File usrplant xml
36. al number 21456xxxxx 30513 Total yield Wh 30795 Grid current A Technical Description SMA Solar Technology AG Product Description 3 5 Addressing and Data Transmission in the Modbus Protocol 3 51 Unit IDs The unit ID is a higher level addressing type in the Modbus protocol The SMA Modbus protocol has 247 unit IDs of which 245 can be assigned to individual devices If a unit ID is assigned to a device then the parameters and measured values of this device can be accessed The following table shows an overview of the unit IDs in the SMA Modbus profile Unit ID Explanation 1 This unit ID is reserved for the gateway of the Cluster Controller 2 This unit ID is reserved for the PV system parameters The unit IDs 3 to 247 are used for addressing individual devices and for the user 310 247 defined Modbus profile You can change the assignment of these unit IDs see Section 4 2 Information on Changing Unit IDs 19 Devices which are assigned to this unit ID were connected to the Cluster Controller replaced after activation of the Modbus server The devices cannot be addressed with this unit ID You must assign unit IDs from the range 3 to 247 to these devices see Section 4 2 Information on Changing Unit IDs page 19 255 3 5 2 Assignment of the Modbus Register to Unit IDs The assignment of the parameters and measured values of the SMA devices to Modbus register addresses is achieved using assignme
37. alia SMA Italia S r l 39 02 8934 7299 Milano Kimpoc Kibris Bkz Yunanistan Luxemburg Lu Siehe Belgien xembourg Voir Belgique Magyarorsz g l sd Cesko Csehorsz g Nederland zie Belgien Belgi Osterreich Siehe Deutschland Per Ver Espa a Polska Patrz Czechy Portugal SMA Solar Technology Portugal Isento de taxas em Portugal Unipessoal Lda 800 20 89 87 Lisboa Internacional 351 212 377 860 Rom nia Vezi esko Cehia Schweiz Siehe Deutschland Slovensko pozri esko esk republika South Africa SMA Solar Technology 08600 SUNNY 08600 78669 South Africa Pty Ltd Centurion Pretoria International 27 12 643 1785 Technical Description ClusterController_Modbus TB en 15 61 SMA Solar Technology AG United Kingdom SMA Solar UK Ltd 44 1908 304899 Milton Keynes SMA Hellas AE 801 2229 222 International 30 212 222 9 222 ne SMA Solar Thailand Co Ltd 66 2 670 6999 NNNNA SMA Technology Korea Ltd 82 2 508 8599 As rh SMA Beijing Commercial Company 86 10 5670 1350 Ltd dtm Ax SMA Japan 81 0 3 3451 9530 m 971 2 698 5080 SMA Middle East LLC ra cgi ol santi 2 yall Other countries International SMA Service Line Toll free worldwide 00800 SMA SERVICE Niestetal 800 762 7378423 62 ClusterController
38. atus is another one the output is 0 U32 FIXO RO 30205 Power in warning status Displays the maximum active power if the device is in the warning status device is currently not feeding in automatic correction attempt is active If the device status is another one the output is W U32 FIXO RO 30207 30211 Power in error status Displays the maximum active power if the device is in the error status device is no longer feeding in user action is required If the device status is another one the output 0 Recommended action 336 Contact manufacturer 337 Contact installer 338 Invalid 887 None U32 U32 FIXO RO ENUM RO 30213 Status message code has a maximum of five digits 886 No message nnnnn Last status message The number of digits is limited by the device U32 ENUM 30215 Status description code has a maximum of five digits 885 No description nnnnn Last status description The number of digits is limited by the device U32 ENUM 32 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG SMA Modbus Profile Assignment Tables Utility grid contactor 30217 51 Contactor closed 2 032 ENUM RO 311 Contactor open Temperature derating 302 No derating 557 Temperature derating 30219 884 Not active 2 032 ENUM RO 1704 PMAX derating 1705 Fr
39. cription Additional Documents Document title Source Service Name and Transport Protocol http www iana org assignments service names port Port Number Registry numbers service names port numbers xml Modbus Application Protocol http www modbus org specs php Specification Technical Description ClusterController_Modbus TB en 15 5 Information this Document DANGER SMA Solar Technology AG Explanation Indicates a hazardous situation which if not avoided will result in death or serious injury Indicates a hazardous situation which if not avoided can result in death or serious injury Indicates hazardous situation which if not avoided result minor or moderate injury Indicates a situation which if not avoided can result in property damage E Information that is important for a specific topic or goal but is not safety relevant O Indicates a requirement for meeting a specific goal Typographies Typography Use Example bold Elements to be selected Select Settings Elements on a user interface Control via communication File names The file usrprofile xml e Parameters The values Major and Minor Nomenclature Complete designation Modbus register Designation in this document Register Photovoltaic system PV system SMA Cluster Controller Cluster Controller 6 ClusterController_Modbus TB en 15 Technical Description SMA So
40. dbus specification only a specific volume of data can be transported in a single transmission in a simple protocol data unit PDU The data also contains function dependent parameters such as the function code start address or number of Modbus registers to be transmitted The amount of data depends on the Modbus command used and has to be taken into account during data transmission You can find the number of possible Modbus registers per command in Section 3 6 With data storage in the Motorola format big endian data transmission begins with the high byte and then the low byte of the Modbus register 14 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG Product Description 3 6 Reading and Writing of Data The Modbus interface can be used via the protocol Modbus TCP and via the protocol Modbus UDP Using Modbus TCP enables read and write access RW and using Modbus UDP enables only write access WO to the Modbus register The following Modbus commands are supported by the implemented Modbus interface Modbus command Hexadecimal value Data volume number of regis ters Read Holding Registers 0x03 1 to 125 Read Input Registers 0x04 l to 125 Write Single Register 0x06 1 Write Multiple Registers 0x10 1 to 123 Read Write Multiple Registers Ox17 Read 1 to 125 Write 1 to 121 Error messages on reading or writing individual Modbus registers If a Modbus register is accessed which is
41. e and current levels The assignment between SMA device data and Modbus addresses is split into ranges in the SMA Modbus profile and these can be addressed via unit IDs see Section 3 5 Addressing and Data Transmission in the Modbus Protocol page 13 To enable access to data of an SMA device a special gateway is required and this is provided by way of the Cluster Controller 3 3 User Defined Modbus Profile The user defined Modbus profile enables you to reassign Modbus addresses of the SMA Modbus profile One advantage of reassigning Modbus addresses is for example that you can arrange relevant measured values and parameters in sequence for a specific purpose These addresses can then be read and written in a single data block 3 4 PV System Topology The SMA Modbus profile was developed for a hierarchical PV system structure In this structure the Cluster Controller is a communication device which is equipped with a Modbus TCP IP and Mod bus UDP IP interface All additional SMA devices that are connected to the Cluster Controller via the SMA fieldbus are subordinate to the Cluster Controller From the perspective of the Modbus protocol the Cluster Controller represents a Modbus slave that provides a gateway to SMA devices The SMA devices can only be addressed using this gateway per unit ID 10 ClusterController Modbus TB en 15 Technical Description SMA Solar Technology AG Product Description Example 1 PV System Topology from
42. e transmitted per inverter Note the maximum number of SMA devices according to Section 8 2 Number of SMA Devices page 55 Physical Reaction Time of the Inverters The physical reaction time of the inverters is typically approximately one second depending on the inverters used The physical reaction time is the time between the changing of setpoints in the inverters until their physical implementation Such a change would be for example changing cos Reaction Time of the Modbus Interface The reaction time of the Modbus interface is five to ten seconds The reaction time of the Modbus interface is the time between the arrival of the parameter specifi cations in the inverters until the corresponding measured values are provided to the Modbus inter face of the Cluster Controller Due to this reaction time parameter specifications can only be dis played via a Modbus master system e g a SCADA system at a corresponding or larger interval 56 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG 8 5 Number Codes of the Time Zones The following table contains the most important time zones and their number codes in the SMA Modbus profile If the location is known you can determine the numerical key code and the time zone In the tables in Section 5 SMA Modbus Profile Assignment Tables from page 25 with specification of the time zone this table is referenced Technical Data
43. eactive power G setpoint via system con trol 2 U32 ENUM RO 1387 Reactive power Q setpoint via analog input 1389 Reactive power voltage characteristic curve Q V with hysteresis and deadband Technical Description ClusterController_Modbus TB en 15 Al SMA Modbus Profile Assignment Tables SMA Solar Technology AG 30921 Reactive power setpoint with Q at Night VAr 2 32 FIXO RO 30923 Reactive power setpoint with Q at Night 76 2 32 FIX1 RO 31793 to String current of strings 1 to 64 A 2 32 FIX3 RO 31919 31921 String current of strings 65 96 A 2 32 FIX3 RO 31983 31985 to String current of strings 97 to 128 A 2 32 FIX3 RO 32047 ID of current measurement unit where a communica 32049 2 U32 FIXO RO tion error has occurred U32 FIX2 RO 32051 Warning code for error of string monitoring unit 34097 Operating time of interior fan 1 s 064 Duration RO 34101 Operating time of interior fan 2 s 064 Duration RO 34105 Operating time of heat sink fan s 064 Duration RO 34109 Heat sink temperature 1 C 532 TEMP RO 34113 Interior temperature 1 C 532 TEMP RO 34121 Transformer temperature 1 C 532 TEMP RO 34125 External temperature 1 of supply air C 532 TEMP 34127 Highest measured external temperature 1 C 532 TEMP RO 34609 Ambient temperature C 532 TEMP RO 34611 Highest measured ambient temperature C 532 TEMP 346
44. ecting to the Internet there is a risk that unauthorized users can access and manipulate the data of your PV sys tem Take appropriate protective measures e g Setup a firewall Close unnecessary network ports Only enable remote access via VPN tunnel Do not set up port forwarding at the Modbus port in use Technical Description ClusterController_Modbus TB en 15 9 Product Description SMA Solar Technology AG 3 Product Description 3 1 Modbus Protocol The Modbus Application Protocol is an industrial communication protocol that is currently used in the solar sector mainly for plant communication in PV power plants The Modbus protocol has been developed for reading data from or writing data to clearly defined data areas The Modbus specification does not prescribe what data is within which data area The data areas must be defined device specifically in Modbus profiles With knowledge of the device specific Modbus profile a Modbus master e g SCADA system can access the data of a Modbus slave e g SMA Cluster Controller The special Modbus profile for SMA devices is the SMA Modbus profile 3 2 SMA Modbus Profile The SMA Modbus profile contains definitions for SMA devices A reduction of the available data on SMA devices was carried out for the definition and this was then assigned to the corresponding Modbus registers The SMA Modbus profile contains for example the total and daily energy current power voltag
45. equency derating 1706 Derating due to PV current limitation 30225 Insulation resistance C2 2 U32 FIXO RO Status of key switch 30227 381 Switched off 2 U32 ENUM RO 569 Switched on 30229 Local time of device 2 U32 DT RO Maximum possible permanent active power fixed 30231 configuration Can be greater than the nominal pow 2 U32 FIXO RO er W 30233 Permanent active power limitation 2 U32 FIXO RO Backup mode status 30235 1440 Grid operation 2 U32 ENUM RO 1441 Stand alone mode Grid type 1433 277 volts 1434 208 volts 30237 2 032 ENUM RO 1435 240 volts 1436 208 volts without neutral conductor 1437 240 volts without neutral conductor Technical Description ClusterController_Modbus TB en 15 33 SMA Modbus Profile Assignment Tables SMA Solar Technology AG Operating mode of Power Balancer 303 Off 30239 1442 PhaseGuard 2 032 ENUM RO 1443 PowerGuard 1444 FaultGuard 30247 Current complete event number 2 U32 FIXO RO Status of the GFDI relay 30249 51 Closed 2 U32 ENUM RO 311 Open Status of current restart interlock 1690 Fast stop 2386 Overvoltage 30251 2387 Undervoltage 2 U32 ENUM RO 2388 Overfrequency 2389 Underfrequency 2390 Passive islanding detection State of DC switch 30257 51 Closed 2 032 ENUM RO 311 Open 30267 DC switch 1 to 32 to 51 Closed 2 U32 ENUM RO 30329 311 Open Error message DC switch 1 to 32
46. he following infor mation Information ADR DEC Description Number Code s Explanation Decimal Modbus address see Section 3 5 3 page 14 onwards Short description of the Modbus register and the number codes used CNT Number of assigned Modbus registers Type Data type e g U32 32 bits without prefix see Section 3 7 page 16 Format Data format of saved value e g DT date FIX n output with n deci mal places TEMP output as temperature see Section 3 8 page 17 Access Access type RW Read and write only Modbus TCP WO Write only Modbus TCP and Modbus UDP If an access type is not allowed a Modbus exception is generated in the event of access with an access type that is not allowed Technical Description ClusterController_Modbus TB en 15 25 SMA Modbus Profile Assignment Tables SMA Solar Technology AG 5 2 Gateway Unit ID 1 In the following table you can find the parameters and measured values provided by the gateway which you can access under unit ID 1 and also the assignment of the SMA devices to the unit IDs You can access the gateway via the IP address of the Cluster Controller o Hi x Q Description number code s S 5 2 x 2 A g lt NT E 30001 Version number of the SMA Modbus profile 2 U32 RAW 30003 505 ID of the Cluster Controller 2 032 RAW RO 30005 Serial number of the Cluster Controller 2 032 RAW RO Modbus data change meter value is
47. ifference between starting frequency 2 U32 FIX2 RW and power frequency Hz Configuration of the linear gradient of the instantane 40220 power Difference between reset frequency and 2 U32 FIX2 RW power frequency Hz Configuration of the cos P characteristic curve 40222 2 U32 FIX2 RW cos of the starting point Configuration of the cos characteristic curve 40994 excitation type of the starting point 2 U32 ENUM RW 1041 Leading 1042 Lagging 40226 Configuration of the cos P characteristic curve gt 032 FIXO RW cos o of the end point Configuration of the cos P characteristic curve excitation type of the end point 40228 2 032 ENUM RW 1041 Leading 1042 Lagging Configuration of the cos P characteristic curve 40230 2 U32 FIXO RW active power of the starting point 76 Configuration of the cos P characteristic curve 40232 2 U32 FIXO RW active power of the end point 75 50 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG User Defined Modbus Profile 6 User Defined Modbus Profile With the user defined Modbus profile the Modbus addresses that are available in the SMA Mod bus profile for the individual unit IDs can be assigned to different Modbus addresses You can use the entire Modbus address range from 0 to 65535 One advantage of the user defined Modbus profile can be that the measured values and parameters re
48. lar Technology AG Abbreviations Abbreviation Designation GFDI Ground Fault Detection and Interruption PMAX Set active power limit Information on this Document Explanation Detection of the grounding error and subse quent interruption of the electric circuit The device can generate active power up to this limit Power Balancer The Power Balancer is a function in Sunny Mini Central devices for controlling three phase grid feediin for example to avoid unbalanced loads SMA fieldbus Hardware interface for communication be tween SMA devices e g Speedwire For information on the supported communication interfaces refer to the datasheet of the SMA device being used SUSy ID SMA Update System ID Numeric value that identifies a specific SMA device type e g 128 STP nnOOOTL 10 Technical Description ClusterController_Modbus TB en 15 7 Safety SMA Solar Technology AG 2 Safety 2 1 Intended Use The Modbus interface of the SMA Cluster Controller is designed for industrial use and has the following tasks Remote control of the grid management services of a PV system Remote controlled querying of the measured values of a PV system Remote controlled changing of the parameters of a PV system The Modbus interface can be used via the protocol Modbus TCP and by the protocol Mod bus UDP The enclosed documentation is an integral part of this product Read and observe the
49. levant for controlling your plant can be applied to consecutive Modbus addresses These addresses can then be read or written in a single data block The user defined Modbus profile can be called up via the gateway like an additional device and has a separate unit ID which you can define between 3 and 247 see Section 3 5 1 Unit IDs page 13 6 1 Structure of the XML File for the User Defined Modbus Profile The user defined Modbus profile is created in the file usrprofile xml The XML file s basic structure looks like this lt xml version 1 0 encoding UTF 8 virtual modbusprofile channel unitid aaa source bbbbb destination ccccc gt I End of the instructions gt lt virtual_modbusprofile gt Legend for XML tags and attributes XML tag or attribute Explanation lt virtual_modbusprofile gt A user definded Modbus profile is created within this XML struc lt virtual_modbusprofile gt ture lt channel gt Within a channel tag a Modbus address of a unit ID is rede fined unitid aaa Specifies the unit ID of the device which Modbus addresses are to be used as a source Available unit IDs for individual devices are 3 to 247 source bbbbb Specifies a Modbus address of the devices selected under unitid whose parameters or measured values are to be used as source see Section 5 Assignment Tables page 25 Technical Description ClusterController_Modbus TB en 15 51 U
50. monitoring minimum threshold V 2 U32 FIX2 RW 40095 Voltage monitoring maximum threshold V 2 U32 FIX2 RW Voltage monitoring hysteresis 40097 2 U32 FIX2 RW minimum threshold V Voltage monitoring hysteresis 40099 2 U32 FIX2 RW maximum threshold 40101 Frequency monitoring minimum threshold Hz 2 U32 FIX2 RW 40103 Frequency monitoring maximum threshold Hz 2 U32 FIX2 RW 40105 Frequency monitoring hysteresis 2 32 FIXO RW minimum threshold Hz 40107 Frequency monitoring hysteresis 2 32 FIXO RW maximum threshold Hz Set country standard 27 Special setting 42 54777 3 305 Stand alone mode 40109 2 032 ENUM RO 333 PPC 343 RD1663 438 VDEO126 1 1 1013 Other standard Voltage monitoring generator 40111 2 U32 FIX2 RW minimum threshold V Voltage monitoring generator 40113 2 U32 FIX2 RW maximum threshold V 40115 Voltage monit gener hysteresis min threshold 2 U32 FIX2 RW 40117 Voltage monit generator hysteresis gt 032 FIX2 RW maximum threshold V 40119 Frequency monitoring generator 2 032 FIXO RW minimum threshold Hz Technical Description ClusterController_Modbus TB en 15 47 SMA Modbus Profile Assignment Tables SMA Solar Technology AG 40121 Frequency monitoring generator 2 032 FIX2 RW maximum threshold Hz 40123 Frequency monitoring generator hysteresis 2 U32 FIX2 RW minimum threshold Hz 40125 Frequency monitoring generator hysteresis 2 U32 FIX2 RW maximum threshold
51. nfiguration serial cccceccecc Serial number of the device unitid ddd Unit ID of the device Example of the file usrplant xml The unit IDs of the following two SMA devices are to be changed to unit ID 3 and 4 e SB 5000 TL21 SUSy ID 138 Serial number 2178909920 current position in gateway 7 e STP 15000TL 10 SUSy ID 128 Serial number 2112303920 current position in gateway 8 The exact appearance of the XML file is then as follows lt xml version 1 0 encoding UTF 8 plant version 001 gt device regoffs 7 susyid 138 serial 2 178909920 unitid 3 gt device regoffs 8 susyid 128 serial 2 112303920 unitid 4 gt lt plant gt 4 4 3 Activating Deactivating usrplant xml Activating the file usrplant xml To activate the file usrplant xml upload the file to the Cluster Controller All the specifications in the file are checked If the file contains no errors its contents are entered into the system A changed usrplant xml becomes effective a few seconds after it is activated Once the file usrplant xml is activated the file sysplant xml is not taken into consideration for the duration of the activation Deactivating the file usrplant xml To deactivate the file usrplant xml upload a version of this file containing no device tags to the Cluster Controller Both of the following lines show the structure of such a usrplant xml file lt xml version 1 0 encoding
52. nt tables and is also shown in this document see Section 5 SMA Modbus Profile Assignment Tables page 25 In the assignment table Gateway unit ID 1 the assignment of SMA devices to individual unit IDs is saved in the Modbus registers from address 42109 Each assignment has an address range of four Modbus registers although only the corresponding register is writable with the unit ID In the assignment table PV System Parameters unit ID 2 parameters and measured values of the Cluster Controller and the PV system are stored In the assignment table SMA devices unit ID 3 to 247 the parameters and measured values intended for all SMA devices are stored The individual SMA devices use a subset of these for their device specific parameters and measured values Technical Description ClusterController_Modbus TB en 15 13 Product Description SMA Solar Technology AG 3 5 3 Modbus Register Address Register Width and Data Block A Modbus register is 16 bits wide For broader data items connected Modbus registers are used and considered as data blocks The number of connected Modbus registers is indicated in the assignment tables The address of the first Modbus register in a data block is the start address of the data block 3 5 4 Address Range for Modbus Register For addressing Modbus registers the address range O to OxFFFF is available with 65536 address es 3 5 5 Transmission In accordance with the Mo
53. ommunication interface between the SMA Cluster Controller and the inverters Type serial numbers and software version of the inverters connected to your PV system Australia SMA Australia Pty Ltd Toll free for Australia 1800 SMA AUS Sydney 1800 762 287 International 61 2 9491 4200 Belgien Belgi SMA Benelux BVBA SPRL 32 15 286 730 que Belgi Mechelen Brasil Vide Espa a Espanha Cesko SMA Central amp Eastern Europe s r o 420 235 010 417 Praha Chile Ver Espa a Danmark Se Deutschland Tyskland Deutschland SMA Solar Technology AG Medium Power Solutions Niestetal Wechselrichter 49 561 9522 1499 Kommunikation 49 561 9522 2499 SMA Online Service Center www SMA de Service Hybrid Energy Solutions Sunny Island 49 561 9522 399 PV Diesel Hybridsysteme 49 561 9522 3199 Power Plant Solutions Sunny Central 49 561 9522 299 60 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG Contact Espa a SMA lb rica Tecnolog a Solar Llamada gratuita en Espa a S LU 900 14 2222 Barcelona Internacional 34 902 14 24 24 France SMA France 5 5 Medium Power Solutions Lyon Onduleurs 33 4 72 09 04 40 Communication 33 4 72 09 04 41 Hybrid Energy Solutions Sunny Island 33 4 72 09 04 42 Power Plant Solutions Sunny Central 33 4 72 09 04 43 India SMA Solar India Pvt Ltd 91 22 61713888 Mumbai It
54. p Technical Description SMA CLUSTER CONTROLLER Modbus Interface ClusterController_Modbus TB en 15 Version 1 5 ENGLISH Legal Provisions SMA Solar Technology AG Legal Provisions The information contained in thesedocuments is the property of SMA Solar Technology AG Any publication whether in whole or in part requires prior written approval by SMA Solar Technology AG Internal reproduction used solely for the purpose of product evaluation or other proper use is allowed and does not require prior approval Trademarks All trademarks are recognized even if not explicitly identified as such A lack of identification does not mean that a product or symbol is not trademarked The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG Inc and any use of these marks by SMA Solar Technology AG is under license Modbus is a registered trademark of Schneider Electric and is licensed by the Modbus Organiza tion Inc SMA SOLAR TECHNOLOGY AG Sonnenallee 1 34265 Niestetal Germany Tel 49 561 9522 0 Fax 49 561 9522 100 www SMA de E Mail info SMA de 2012 2014 SMA Solar Technology AG All rights reserved 2 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG Table of Contents Table of Contents 1 Information on this 5 27 SCS A 8 2 1 Intended Use see eere tre HR HERE HER
55. ri Jayawardenepura 9568 UTC 05 30 Taipei 9569 UTC 08 00 Tashkent 9589 UTC 05 00 Tbilisi 9533 UTC 04 00 Teheran 9540 UTC 03 30 Tijuana Lower California Mexico 9559 UTC 08 00 Ulan Bator 9592 UTC 08 00 Vladivostok 9575 UTC 10 00 West Central Africa 9577 UTC 01 00 Windhoek 9551 UTC 02 00 Yakutsk 9581 UTC 09 00 Yangon Rangoon 9549 UTC 06 30 Yekaterinburg 9530 UTC 05 00 Yerevan 9512 UTC 04 00 58 ClusterController_Modbus TB en 15 SMA Solar Technology AG Technical Description SMA Solar Technology AG Technical Data 8 6 Frequently Used Number Codes ENUM The following table contains number codes which as function coding in data format ENUM are frequently used in the SMA Modbus profile Event Numbers The event numbers displayed by the inverters under the Modbus address 30197 are device specific You cannot decrypt the event numbers with the number codes in this document see Section 7 Troubleshooting page 54 Code Meaning 1387 Reactive power Q setpoint via analog input 51 Closed 1388 o setpoint via analog input 276 Instantaneous value 1389 Reactive power voltage characteristic curve Q U 295 MPP with hysteresis and deadband 303 Off 1390 Active power limitation P via analog input 308 On 1391 Active power limitation P via digital inputs 309 Operation 1392 Error 311 Open 1393 Wait for PV vol
56. ser Defined Modbus Profile SMA Solar Technology AG destination ccccc Specifies the new Modbus address at which the parameter or measured value is to be accessed 0 to 65535 Note the num ber of Modbus registers that are stored at the initial address The destination registers must not overlap If incomplete Modbus registers are called up later a Modbus exception is generated If register addresses are called up which are not filled with values NaN is returned lt 2 gt Comments out the range xyz for example to deactivate an instruction Modbus exceptions Modbus exceptions see Modbus Application Protocol Specification at http www modbus org specs php 6 2 Example of a User Defined Modbus Profile The Modbus registers for apparent power active power and reactive power of the devices stored under unit IDs 3 and 4 are to be retrievable in a user defined Modbus profile from address 0 at consecutive Modbus addresses the following table is an excerpt from the SMA Modbus profile 5 Hj a Description number code s E 5 amp pe gt g lt o 2 lt 30775 active power on alll line conductors 2 32 FIXO RO 30805 Reactive power on all line conductors VAr 2 532 FIXO RO 30813 Apparent power on all line conductors 2 32 FIXO RO The exact appearance of the XML file follows from the example lt xml version 1 0 encoding UTF 8 2 gt lt virtual_modbusprofile gt lt
57. t be contained in the data block i Do not assign unit IDs more than once You must not assign a Unit ID more than once In the event of a Modbus query with a unit ID that has been assigned more than once the data is read out for the device that is en tered with this unit ID in the gateway under the lowest Modbus address Example Changing A Unit ID in the Gateway The following table shows an example of assignment of a device to a unit ID An inverter was subsequently detected with SUSy ID 158 and serial number 2145600934 as the third device in the PV system Modbus addresses 42117 to 42120 The unit ID of this device was manually set to 5 Modbus address Designation After detection Modified 42117 SUSy ID 158 158 42118 Serial number 2145600934 2145600934 42120 Unit ID 255 NaN 5 Technical Description ClusterController_Modbus TB en 15 21 Commissioning and Configuration SMA Solar Technology AG 4 4 Changing Unit IDs via the XML File usrplant xml 4 4 1 Overview The Cluster Controller stores the assignments of the devices of the PV system to unit IDs in the file sysplant xml This file contains an excerpt of the gateway see Section 5 2 Gateway Unit ID 1 page 26 If new SMA devices are added or if SMA devices are replaced these are respec tively added to the available XML structure of this file with unit ID 255 by the Cluster Controller You can define your own variant of this file in the file usrplant xml Yo
58. t is entered as the tenth device in the gateway device regoffs 9 susyid 0 serial 0 unitid 100 gt Deactivating a User Defined Modbus profile You deactivate a user defined Modbus profile by commenting out in its device line in the file usrplant xml and re uploading this to the Cluster Controller for more information on the usrplant xml file see Section 4 4 Changing Unit IDs via the XML File usrplant xml page 22 In the following example you can see a commenting out applied to the line with the user defined Modbus profile lt lt device regoffs 0 susyid 128 serial 8700654300 unitid 3 gt gt Technical Description ClusterController_Modbus TB en 15 53 Troubleshooting SMA Solar Technology AG 7 Troubleshooting You can find information on error analysis of the SMA Modbus profile in Section 3 6 Reading and Writing of Data page 15 For troubleshooting of the SMA devices go to Modbus address 30197 and use the event numbers displayed here 1 The event numbers of the SMA devices cannot be decrypted with the number codes in this document The event numbers of the SMA devices are device specific and cannot be decrypted with the number codes in this document To decrypt the event numbers of low or medium power inverters you require additional information operating parameters measured values see Technical Description Measured Values and Parameters at www SMA Solar com To decrypt the event
59. tage 336 Contact the manufacturer 1394 Wait for valid AC grid 337 Contact the installer 1395 range 338 Invalid 1396 AC grid 381 Stop 1455 Emergency switch 455 Warning 1466 Wait 461 SMA manufacturer specification 1467 Start 1041 leading 1468 MPP search 1042 lagging 1469 Shutdown 1069 Reactive power voltage characteristic curve Q V 1470 Disturbance 1070 Reactive power G direct setpoint 1471 Warnning error e mail OK 1071 Reactive power const Q kVAr 1472 Warning error e mail not OK 1072 Reactive power G setpoint via system control 1473 System info e mail OK 1073 Reactive power Q P 1474 System info e mail not OK 1074 direct setpoint 1475 Error e mail OK 1075 setpoint via system control 1476 Error e mail not OK 1076 P characteristic curve 1477 Warning e mail OK 1077 Active power limitation P W 1478 Warning e mail not OK 1078 Active power limitation 95 of PMAX 1479 Wait after grid interruption 1079 Active power limitation P via system control 1480 Wait for electric utility company Technical Description ClusterController_Modbus TB en 15 59 SMA Solar Technology AG 9 Contact If you have technical problems concerning our products contact the SMA Service Line We require the following information in order to provide you with the necessary assistance Modbus master software or hardware used Software version of your SMA Cluster Controller Type of c
60. teway You access the gateway via the IP address of the Cluster Controller under the unit ID 1 The assignment of the system devices for unit IDs 3 to 247 is stored in the Modbus registers from address 42109 Each assignment has an address range of four Modbus registers You can find the Modbus register of the gateway in Section 5 2 Gateway page 26 Example Read out additional device from the gateway Via automatic detection an additional SMA device was assigned to unit ID 255 indicated with C in column Device in the following table The assignments of the gateway were as follows here shown with a SCADA system as a table Modbus address Content Description Device 42109 158 SUSy ID A 42110 2145600972 Serial number A 42112 3 Unit ID A 42113 158 SUSy ID B 42114 2145600320 Serial number B 42116 4 Unit ID B 42117 158 SUSy ID 42118 2145600934 Serial number C 42120 255 Unit ID 20 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG Commissioning and Configuration 4 3 2 Changing a Unit ID in the Gateway You change a unit ID by writing it to the relevant Modbus address All three of the Modbus regis ters that belong to a device unit ID assignment must be transmitted in a single data block although only the register with the unit ID is writable For the following example this means that all the data of the three Modbus addresses 42117 42118 and 42120 mus
61. the Perspective of the SMA Devices MODBUS Master MODBUS TCP IP UDP IP Unit ID 1 STP nn000TL 10 Line Explanation IP network connection between SCADA system and Cluster Controller PV system router SMA fieldbus Logical assignment of SMA device to unit ID Technical Description ClusterController_Modbus TB en 15 11 Product Description SMA Solar Technology AG Example 2 PV System Topology from the Perspective of the Modbus Protocol In the following example an inverter is assigned to a unit ID between 3 and 247 in each case This way the inverter data can be addressed in the Modbus protocol Unit ID 1 represents the gateway to the Modbus protocol and unit ID 2 the PV system parameters STP 000 10 SUSy ID 128 Serial number 21123 e STP nOOOTL 20 SUSyAD 181 Serial number 21456 SB nOOOTL 21 SUSyID 138 Serial number 21789 12 ClusterController_Modbus TB en 15 MODBUS Unit ID 1 Unit ID 2 Unit ID 3 Unit ID 4 Gateway 42109 Device 1 SUSy ID 42110 Device 1 Serial number 42112 Device 1 Unit ID e g 3 42113 Device 2 SUSy ID 42114 Device 2 Serial number 42116 Device 2 Unit ID e g 4 Plant parameters 30513 Total yield Wh 30517 Day yield Wh SUSy ID 128 Serial number 21 123xxxxx 30513 Total yield Wh 30795 Grid current A SUSy ID 181 Seri
62. tings are transferred by the Cluster Controller to the devices of the PV system and there depend ing on the device type processed further Measured values such as energy meter values are que ried by the devices and made available as accumulated values d 226 a Description number code s E 5 2 E DO a g 2 lt 30193 UTC system time in s 2 U32 DT RO Total energy fed in across all line conductors in Wh 30513 4 064 FIXO RO accumulated values of the inverters Energy fed in on current day across all line conduc 30517 4 064 FIXO RO tors in Wh accumulated values of the inverters Current active power on alll line conductors W 30775 2 32 FIXO RO accumulated values of the inverters Reactive power on all line conductors in VAr 30805 2 32 FIXO RO accumulated values of the inverters 532 TEMP RO S32 TEMP RO 34609 Ambient temperature C 34611 Highest measured ambient temperature C 34613 Total irradiation on the sensor surface W m U32 FIXO RO 34615 Wind speed m s U32 FIX RO 28 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG SMA Modbus Profile Assignment Tables 34617 Humidity 2 U32 FIX2 RO 34619 Air pressure Pa 2 U32 FIX2 RO 34621 module temperature C 2 532 TEMP RO Total irradiation on the external irradiation sen 34623 2 U32 FIXO RO sor pyranometer W m
63. u can use sysplant xml as a template for usrplant xml You can download the file sysplant xml from the Cluster Controller Uploading and downloading XML files For more information on uploading and downloading XML files via the user interface see the SMA Cluster Controller user manual The file usrplant xml must be activated in the Cluster Controller Once the file usrplant xml is activated the file sysplant xml is not taken into consideration for the duration of the activation 4 4 2 Structure of the XML File usrplant xml The files sysplant xml and usrplant xml have the same tag structure The basic structure of the files is as follows lt xml version 1 0 encoding UTF 8 plant version 001 gt device regoffs aaa susyid bbb serial cccccccccc unitid ddd gt lt plant gt Legend for XML tags and attributes XML tag or attribute Explanation lt device gt Within the tag Device is the assignment of a device to a unit ID regoffs aaa Number of the device in file sysplant xml The number must not neces sarily be assigned sequentially There are four decimal Modbus regis ter addresses between the devices Regoffs 0 defines the first device under the Modbus address 42109 Regoffs 244 the last device under the Modbus address 43085 susyid bbb SUSy ID of the device 22 ClusterController Modbus TB en 15 Technical Description SMA Solar Technology AG Commissioning and Co
64. ue range that can be set via the Modbus protocol cannot be converted by every inverter to physical values displacement power factor cos see the operating manual of the inverter In the following table you can find measured values and parameters for SMA devices that you can access via unit IDs 3 to 247 The table does not apply for unit IDs 1 and 2 Description number code s ADR DEC CNT WORD Type Format Access Device class 8000 All devices 8001 Solar inverters 8002 Wind turbine inverter 30051 8007 Battery inverter 2 U32 ENUM RO 8033 Consumer 8064 Sensor system in general 8065 Electricity meter 8128 Communication products Manufacturer specification 30055 ab SAR 2 U32 ENUM RO 30057 Serial number 2 032 RAW RO 30059 Software suite 2 U32 FW RO 30193 UTC system time s 2 U32 DT RO Event number of the current event The number of digits is limited by the device for event messages see 30197 2 U32 FIXO RO the Technical Description Measured Values and Parameters 30199 Time until grid connection attempt s 2 U32 Duration RO Technical Description ClusterController_Modbus TB en 15 31 SMA Modbus Profile Assignment Tables SMA Solar Technology AG 30201 Status of the device 35 Error 303 Off 307 OK 455 Warning U32 ENUM 30203 Power in OK status Displays the maximum active power W if the device status is OK If the device st
65. upply status 303 Off 30877 1461 Utility grid connected 2 032 ENUM RO 1462 Backup not available 1463 Backup Reason for requesting generator 1773 No request 1774 Load 30879 1775 Time control 2 U32 ENUM RO 1776 Manual one hour 1777 Manual start 1778 External source system utility grid connection 1779 Disconnected 30881 2 U32 ENUM RO 1780 Utility grid 1781 Stand alone grid Technical Description ClusterController_Modbus TB en 15 39 SMA Modbus Profile Assignment Tables SMA Solar Technology AG Status of utility grid 303 Off 1394 Wait for valid AC grid 1461 Utility grid connected 1466 Waiting 1787 Initialization 2183 Grid operation without feed back 2184 Energy saving in the utility grid 30883 2 032 ENUM RO 2185 End energy saving in the utility grid 2186 Start energy saving in the utility grid 30885 Power of external grid connection 2 U32 FIXO RO Power of external grid connection of line conductor A 30887 2 U32 FIXO RO W Power of external grid connection of line conductor B 30889 2 U32 FIXO RO W Power of external grid connection of line conductor C 30891 2 U32 FIXO RO W 30893 Reactive power of external grid connection 2 U32 FIXO RO Reactive power of external grid connection of line 30895 2 U32 FIXO RO conductor A VAr Reactive power of external grid connection of line 30897 2 U32 FIXO RO conductor B VAr
66. us unit IDs remain intact 2 Change the unit IDs if after activation of the Modbus servers further SMA devices have been added to the PV system or SMA devices have been replaced see the following sections 4 2 Information on Changing Unit IDs You can change the unit IDs of SMA devices A change is required for example if additional or changed SMA devices are connected to the Cluster Controller after activation of the Modbus servers By way of the automatic detection of the PV system additional or changed devices are assigned the Modbus unit ID 255 NaN On the other hand it may be necessary to change the unit IDs if a restructuring of the system topology is required for example to better map the physical arrangement of the devices in the Modbus protocol Depending on whether you wish to change individual unit IDs or restructure the entire system topol ogy you have two options e Changing Unit IDs via the gateway recommended for changing individual Unit IDs e Changing Unit IDs via an XML file recommended for restructuring of the system topology Both of these methods are described in separate Sections Technical Description ClusterController_Modbus TB en 15 19 Commissioning and Configuration SMA Solar Technology AG 4 3 Changing Unit IDs via the Gateway 4 3 1 Reading out the Gateway You can read out the individual unit IDs of the SMA devices from the gateway for example using a SCADA system i Accessing the ga
67. wer of line conductor L1 W 32 FIXO RO 30779 Active power of line conductor 12 W 532 FIXO RO 30781 Active power of line conductor 532 FIXO RO 30783 Line voltage line conductor L1 to V U32 FIX2 RO 30785 Line voltage line conductor L2 to V U32 FIX2 RO 30787 Line voltage line conductor to V U32 FIX2 RO 30789 Line voltage line conductor L1 to L2 V U32 FIX2 RO 30791 Line voltage line conductor L2 to L3 V U32 FIX2 RO 30793 Line voltage line conductor to L1 V U32 FIX2 RO U32 FIX3 RO 30795 Line current on all line conductors 30797 Line current of line conductor L1 A U32 FIX3 RO 30799 Line current of line conductor L2 A U32 FIX3 RO NI N NI N N NINININI NINININI NINININI N NM NM NIN 30801 Line current of line conductor L3 U32 FIX3 RO 36 ClusterController_Modbus TB en 15 Technical Description SMA Solar Technology AG SMA Modbus Profile Assignment Tables 30803 Power frequency Hz 2 U32 FIX2 RO 30805 Reactive power on all line conductors VAr 2 532 FIXO RO 30807 Reactive power of line conductor L1 VAr 2 32 FIXO RO 30809 Reactive power of line conductor 12 VAr 2 32 FIXO RO 30811 Reactive power of line conductor L3 VAr 2 32 FIXO RO 30813 Apparent power on all line conductors 2 32 FIXO RO 30815 Apparent power of line conductor L1 VA

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