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Modbus® Interface for SUNNY CENTRAL 1850-US / 2200

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1. External modbus devices Modbus Slave 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 a SCADA system can access the data of a Modbus slave e g communication interface of the inverter The special Modbus profile for SMA devices is the SMA Modbus profile 3 2 SMA Modbus Profile The SMA Modbus profile contains definitions for selected 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 voltage 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 6 Addressing and Data Transmission in the Modbus Protocol page 10 To enable access to the data of an SMA device a special gateway is required which is provided via the communication interface of the inverter Technical Information MODBUS SC2xxx Tl en 13 9 3 Product Description SMA Solar Technology AG 3 3 User Defined Modbus Profile The
2. datatype Data format of the saved value e g DT date FIXn output with n decimal places TEMP output as temperature see Section 3 10 type Type of the register e g Holding see Section 0 size Length of the source register in WORD 1 16 or 2 32 depending on register type Holding or input register 1 2 Coil 1 Depending on the length of the source register 1 or 2 WORD the target addresses should be set for the status register and quality register following the destination register e g destination 1000 size 2 status 1002 quality 1003 1004 ensuring that they do not overlap with the subsequent registers swap Definition of sequence of the Modbus register for data transmission O first the high byte and then the low byte of the Modbus register 1 first the low byte and then the high byte of the Modbus register scale Specification of scaling factor with which the data must be converted offset Signed offset value which is to be added to the source data The default setting is O min Lower value of the permitted range for valid values of the channel max Upper value of the permitted range for valid values of the channel 28 MODBUS SC2xxx Tl en 13 Technical Information SMA Solar Technology AG 6 Modbus Profiles for External Devices XML attribute Explanation representation Data format of the saved value e g DT date FIXn output with n decimal places TEMP output as temperature see Secti
3. destination ccccc Specifies the new Modbus address from which the value is to be retrieved 0 to 65535 Note the number of Modbus registers that are stored at the original 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 65535 OxFFFF is returned Technical Information MODBUS SC2xxx Tl en 13 31 7 User Defined Modbus Profile SMA Solar Technology AG i Modbus exceptions For Modbus exceptions see Modbus Application Protocol Specification at http www modbus org specs php 32 MODBUS SC2xxx Tl en 13 Technical Information SMA Solar Technology AG 8 Troubleshooting 8 Troubleshooting You can find information on error analysis of the SMA Modbus profile in Section 3 8 Reading and Writing Data in the Modbus Protocol page 12 For troubleshooting of the SMA devices go to Modbus address 30197 and use the event numbers displayed there i 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 central inverters contact the SMA Service Line see Section 10 Contact page 36 Technical Information MODBUS SC2xxx Tl en 13 33 9 Technical Data SMA Solar Technology AG 9 Techn
4. Technical Information Modbus Interface for SUNNY CENTRAL 1850 US 2200 US 2200 2500 EV MODBUS SC2xxx Tl en 13 Version 1 3 ENGLISH 1 Information on this Document SMA Solar Technology AG Legal Provisions The information contained in these documents 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 SMA Factory Warranty You can download the current warranty conditions from the Internet at www SMA Solar com Trademarks All trademarks are recognized even if not explicitly identified as such Missing designations do not mean that a product or brand is not a registered trademark Modbus is a registered trademark of Schneider Electric and is licensed by the Modbus Organization 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 into SMA de 2010 until 2015 SMA Solar Technology AG All rights reserved 2 MODBUS SC2xxx Tl en 13 Technical Information SMA Solar Technology AG 1 Information on this Document Table of Contents 1 Information on this Dotument iii 5 TORTO I n n 5 I2 Target Group irorsiola balzare ua ln aust shade aiar orient 5 1 3 Addition
5. 3528 Standby 3529 QonDemand 3530 RampDown 1469 ShutDown 375 Selftest Rio KeySw 973 100 327 RO 308 On 303 Off GfdiSwStt 973 ni 106 6706 RO 311 Open 51 Closed 116 TrfPro Pres 7029 973 Ok 118 TrfPro TmpTrp 506 RO 307 120 TrfPro GasOilLev 7170 soo Error 122 TrfPro TImpWrn 7168 Technical Information MODBUS SC2xxx Tl en 13 25 5 SMA Modbus Profile Assignment Tables 5 4 Zone Monitoring Parameter Unit ID 32 and 33 In the following table you can find the measured values and parameters supported by zone monitoring which you can access under unit ID 32 and 33 see Section 3 6 1 Unit IDs page 10 SMA Solar Technology AG o n gt o a fa E 5 5 o a D 9 a an 5 o E c gt LL TUT oe iS o D o5 7 c s 9 o Channelname Explanation 5 lt a a O a 5 11 DcMs AmpMsCnt Number of available inputs Input U16 1 0 FIXO 55 DcMs Amp 01 DC current input 1 Input S16 10 0 FIX A 56 DcMs Amp 02 DC current input 2 Input 16 10 0 FIX A 57 DcMs Amp 03 DC current input 3 Input S16 10 0 FIX A 58 DcMs Amp 04 DC current input 4 Input S16 10 0 FIX A 59 DcMs Amp 05 DC current input 5 Input S16 10 0 FIX A 60 DcMs Amp 06 DC current input 6 Input 16 10 0 FIX A 61 DcMs Amp 07 DC current input 7 Input 16 10 0 FIX A 62 DcMs Amp 08 DC current input 8 Input 16 10 0 FIX A 63 DcMs Amp 09 DC current input 9 Input S16 10 0 FIX A 64 DcMs Amp 10 DC current input 10 Input
6. format FW Four values are extracted from the delivered DWORD The values Major and Minor 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 type coding Explanation 3 B Beta release 4 R Release 5 S Special release gt 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 0x1 0x5 OxA 0x4 Technical Information MODBUS SC2xxx Tl en 13 15 4 Configuration SMA Solar Technology AG 4 Configuration 4 1 Detection of SMA Modbus Devices and Allocation of Unit IDs With a new PV power plant the Modbus is activated on commissioning and the Modbus capable devices are detected on commissioning The Modbus capable SMA devices log in to the inverter independently and the inverter assigns them a unit ID If new SMA devices are added to the system or if devices must be replaced the new devices are also detected automatically 4 2 Importing the Modbus Profile File of External Devices External Modbus devices can be connected to the inverter In order to be able to access these devices via the Modbus protocol also the external Modbus devices must be detected in the system Procedure 1 Open Modbus profile of the external device in a UTF 8 capable editor e g Notepad 2 In the M
7. 13 37 SMA Solar Technology www SMA Solar com
8. 16 MODBUS SC2xxx Tl en 13 Technical Information SMA Solar Technology AG 5 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 using this unit ID The tables present the following information Information ADR DEC Explanation Decimal Modbus address see Section 3 6 and onwards Channel name Name of the channel Explanation Short description of the data channel of the Modbus register CNT WORD Number of occupied Modbus registers see Section 3 6 and onwards Unique ID Assignment to the channels in the inverter Data Type Data type e g U32 32 bits without prefix see Section 3 6 Data Format Data format of the saved value e g DT date FIXn output with n decimal places TEMP output as temperature see Section 3 10 Access Access type for Modbus TCP see Section 3 8 Reading and Writing Data in the Modbus Protocol page 12 RO Read only RW Read and write If an access type is not supported a Modbus exception will be generated Scaling Specification of scaling factor with which the data must be converted Offset Specification of offset with which the data must be converted Unit Specification of the unit in which the data is specified Technical Information MODBUS SC2xxx Tl en 13 17 5 SMA M
9. 32 0 ENUM load break switch 1 Switching status of the DC 58 DcSw2Stt 72 32 0 ENUM load break switch 2 Switching status of the DC 60 DcSw3Stt 722 32 0 ENUM load break switch 3 Switching status of the AC 62 AcSwStt 6202 32 0 ENUM circuit breaker Switching state of th it 66 CapacSwstt VERONA ea E78 3600 1 O ENUM contactor Switching status of the pre 68 PrchrgSwStt 6707 32 0 ENUM charging contactor 70 Cnt TotFeedTm Feed in hours 6779 U32 1 0 FIXO 72 Cnt TotOpTm Operating hours 6777 U32 0 FIXO 74 Cnt TotWatthln DC energy drawn total 7119 32 100 0 FIX2 MWh 76 Cnt TotWhOut AC energy fed in total 7118 32 100 0 FIX2 MWh 78 Cnt Watthin DC energy drawn that day 6771 32 100 0 FIX2 MWh 80 Cnt WhOut AC energy fed in that day 6767 32 100 0 FIX2 MWh 22 MODBUS SC2xxx Tlen 13 Technical Information SMA Solar Technology AG 5 SMA Modbus Profile Assignment Tables Ls 2 dA ds D o 3 a g E 55 o gt D 2 90 2 Le G T Le PIE a 2 2 2 c e fo c 2 Channel name Explanation 5 a d O a 5 Operating hours of the interior 82 Cnt FanCab1Tm ui 6793 U32 1 0 FIXO an Operating hours of the interior 84 Cnt FanCab2Tm 6795 U32 1 0 FIXO fan 2 Operating hours of the inverter 86 Cnt FanStkTm 6791 U32 1 O FIXO bridge fan Operating hours of the internal 88 Cnt HtCabTm f 6797 U32 1 0 FIXO heating element Operating hours of the 40 C 90 Cnt HtiloExITmpTm 6799 U32 1 0
10. FIXO internal heating element Error location of the present 92 Errlen 6968 U32 1 O FIXO error 94 ErrStt Error status of the inverter 328 S32 1 0 ENUM Error number of the present 96 ErrNo 823 U32 1 0 FIXO error 98 Opstt Operating state of the inverter 332 32 0 ENUM Switch status of the start stop 100 Rio KeySw f 327 S32 1 0 ENUM key switch ta Waiting time for grid 102 WaitGriTm A 614 32 10 0 FIX1 s connection 104 Devinf SerNo Inverter serial number 6763 U32 1 0 FIXO 106 GfdiSwsStt Switching status of the GFDI 6706 32 1 0 ENUM 108 WSpt Active power setpoint 320 32 0 FIXO kW Maximum apparent power 110 VAMaxSpt i 665 32 10 O FIX1 kVA setpoint 112 VArSpt Reactive power setpoint 321 32 1 0 FIXO kVAr 114 PFSpt Power factor cos phi setpoint 322 32 10000 0 FIX4 Fast stop hermetic protection 116 TrfPro Pres 7029 32 1 0 ENUM pressure Fast stop hermetic protection 118 TrfPro TmpTrp 506 32 1 0 ENUM temperature Hermetic protection gas fill 120 TrfPro GasOillev 7170 32 1 0 ENUM level Technical Information MODBUS SC2xxx Tl en 13 23 5 SMA Modbus Profile Assignment Tables SMA Solar Technology AG la amp ae D to 2 a o E 55 x D 6 23 gt c 5 Le RE Si 2 2 cs o fo c 2 Channel name Explanation 5 d O 5 Hermetic pressure temperature 122 TrfPro TImpWm 7168 32 0 ENUM warning Temperature of inverter bridge 124 TmpStk Igbt 756 32 10 0 FIX C 1
11. be read RW Read Write Value can be read and written SCADA Supervisory Control and Data Control center software in this document SCADA is Acquisition used as an example of a Modbus master system UTC Coordinated Universal Time Universal Time Coordinated VPN Virtual Private Network VPN is used to establish a connection from one private computer network to another The point of connection is established on both sides by a VPN gateway In each case the VPN gateway may be a computer or a router The connection itself is described as a VPN tunnel A secured data stream runs via the tunnel from one network to the other providing VPN nodes from one network with access to services and devices of the other network WO Write only value Value can only be written WORD Data with a width of 16 bits as per IEC 61131 3 Destination register Modbus register to which a different Modbus address source register is assigned The destination register is used instead of the source register for further data processing Technical Information MODBUS SC2xxx Tl en 13 7 2 Security SMA Solar Technology AG 2 Security 2 1 Intended Use The Modbus interface of the inverter is designed for industrial use and has the following tasks e Remote control of the grid management services of a PV system e Remote controlled querying of the measured values of a PV system e Remote controlled changing of the parameters of a PV system The Modbus
12. be transported in a single data 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 8 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 Technical Information MODBUS SC2xxx Tl en 13 11 3 Product Description SMA Solar Technology AG 3 7 Address Types The individual Modbus registers can be addressed with different data Address type Explanation Modbus function code Coil One bit which can be read and written is FC 01 0x01 Read Coils set e g for digital signals FC 05 0x05 Write single coil FC 15 OxOF Write multiple coil Discrete One bit which can be read and written is FC 02 0x02 Read discrete inputs set e g for digital signals Input The addressed registers contain measured FC 04 0x04 Read Input registers values and can only be read RO Holding The addressed registers contain FC 03 0x03 Read holding registers parameters and can be read and written FC 06 0x06 Write single holding register RW FC 16 0x10 Write multiple holding registers 3 8 Reading and Writing Data in
13. state of the inverter 0 InvOpMod ee a a a 329 32 1 0 ENUM setpoint 2 RemRdy Put inverter into operation or standby 331 32 0 ENUM Utility grid system services Selection of A GriMng VArMod procedure for setpoint for reactive 6080 32 0 ENUM power Utility grid system services Selection of 6 GriMng WMod procedure for setpoint for active 6078 32 1 0 ENUM power 8 ErrClr Acknowledgment of the present error 733 32 0 ENUM 10 VADrtPriMod Prioritizing of control of derating 730 32 1 0 ENUM 12 WGraMod Activates the active power gradient 725 32 0 ENUM 14 WGra Active power set point 726 S32 1000 0 FIX3 HH 16 VArGraMod Activates the reactive power gradient 727 32 0 ENUM 18 VArGra Reactive power setpoint 728 S32 1000 0 FIX3 H H Technical Information MODBUS SC2xxx Tl en 13 19 5 SMA Modbus Profile Assignment Tables SMA Solar Technology AG Related ENUM Codes The following table contains number codes which as function coding in data format ENUM are frequently used in the SMA Modbus profile The column Related text contains the corresponding abbreviations a a T n 5 Ei 8 3 Channel 5 2 Related text 0 InvOpMod 329 RW 973 x 381 Stop 309 Operation 2 RemRdy 331 RW 973 308 Enabled 303 Disabled 4 GriMng VArMod 6080 RW 1387 VArCtlAnIn 1388 PFC HAnIn 1072 VArCtlCom 1075 PFCtlCom 2270 AutoCom 1071 VArCtlMan 1074 PFCtlMan 303 Off 6 GriMng WMod 6078 RW 1390 W
14. switch Temperature of inverter bridge 126 TmpStk2 Igbt 757 32 10 0 FIX C 2 switch Temperature of inverter bridge 128 TmpStk3 Igbt 2 758 32 10 0 FIX C 3 switch Maximum temperature of 130 TmpStk1 Pcb 753 32 10 0 FIX C inverter bridge 1 assembly Maximum temperature of 132 TmpStk2 Pcb 754 32 10 0 FIX C inverter bridge 2 assembly Maximum temperature of 134 TmpStk3 Pcb 755 32 10 0 FIX C inverter bridge 3 assembly 136 Cnt YstdWhOut 7032 32 100 0 FIX2 MWh Related ENUM Codes The following table contains number codes which as function coding in data format ENUM are frequently used in the SMA Modbus profile The column Related text contains the corresponding abbreviations v a E N v 5 a E Channel 5 lated a Channe E 2 Related text 56 DcSw1 Stt 611 RO 58 DcSw2Stt 721 RO 60 DcSw3 Stt 722 RO has J 311 Open 62 AcSw1 Stt 6202 RO 5 Closed 66 CapacSwStt 6708 RO 68 PrchrgSwStt 6707 RO 973 94 ErrStt 328 RO 307 Ok 1392 Error 24 MODBUS SC2xxx Tl en 13 Technical Information SMA Solar Technology AG 5 SMA Modbus Profile Assignment Tables v fe n O 5 2 E n hannel E 5 lated Channe E X g Related text 98 OpsStt 332 RO 1787 Init 381 Stop 1392 Error 3522 Update 3523 Reset 1394 WaitAC 3524 ConnectAC 1393 WaitDC 3525 ConnectAC 3526 GridFeed 3527 FRT
15. the Modbus Protocol The Modbus interface can be used via the protocol Modbus TCP and by 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 Modbus function code Data volume number of registers Redd coil FC 01 0x01 1 to 2000 Read Discrete Input FC 02 0x02 1 to 2000 Read Holding Registers FC 03 0x03 1 to 123 Read Input Registers FC 04 0x04 lto 125 Write Single Coil FC 05 0x05 1 Write Single Holding Register FC 06 0x06 1 Write Multiple Coil FC 15 OxOF 1 to 1968 Write Multiple Registers FC 16 0x10 1 to 123 Reading or writing a single Modbus register If a Modbus register is accessed which is not contained in the Modbus profile or if a Modbus command 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 consecutively Number of Modbus registers transferable as data block per command 16 bit Not available for the SMA Modbus master profile 12 MODBUS SC2xxx Tl en 13 Technical Information SMA Solar Technology AG 3 Prod
16. user defined Modbus profile enables you to reassign Modbus addresses of the SMA Modbus profile One advantage of reassigning Modbus addresses can be that the measured values and parameters which are relevant for a specific purpose can be applied to consecutive Modbus addresses These addresses can then be read or placed in a single data block 3 4 SMA Modbus Master Profile The SMA Modbus master profile is an extension of the Modbus interface which is used to access Modbus capable slave devices of other providers Each external Modbus device has a separate profile mmp and is managed as a separate device in the inverter The external devices can be accessed under the unit IDs 16 to 31 via the Modbus slave in the inverter 3 5 PV System Topology The SMA Modbus profile was developed for a hierarchical PV system structure In this structure the inverter has a communication interface that is equipped with a Modbus TCP IP and Modbus UDP interface All other Modbus capable devices are subordinate to the inverter From the perspective of the Modbus protocol the inverter represents a Modbus slave that provides a gateway to the Modbus capable devices These devices can only be addressed via the gateway of the inverter by unit ID 3 6 Addressing and Data Transmission in the Modbus Protocol 3 6 1 Unit IDs The unit ID is a superordinate addressing type in the Modbus protocol The SMA Modbus protocol has 247 unit IDs of which 245 can b
17. values in the columns source type and size correspond to the standard values of the Moxa ioLogik E1242 T i Changed settings of the Moxa ioLogik E1242 T If you change the settings e g ip description etc of the Moxa ioLogik E1242 T you also have to change the attribute values of the Modbus device profile lt Channel gt Within every channel tag one source register of a slave device is assigned to the Modbus profile The register assignments for the individual devices can be found in the following sections Technical Information MODBUS SC2xxx Tl en 13 29 6 Modbus Profiles for External Devices SMA Solar Technology AG The following channels are defined in the profile file 6 hi S 2 E ae 5 _ o o Channel v 2 E LI na po O x D 3 n 2 3 a 3 o o 2 i name 2 a Fay 3 a a a E E 2 5 Aln_Digit lto4 512 Oto Input U16 1 0 1 0 0 65535 FIXO to 7 515 Aln_Float lt04 520 12 Input F32 2 0 1 0 4 0 20 0 FIX3 mA to to 526 15 DOAII 32 0 Holding U16 1 0 1 0 0 65535 FIXO Digln 1 to 8 Oto 7 4 to Discrete Bool 0 0 0 FIXO 11 DigOut lto4 Oto3 1 to Coil Bool I 0 I 0 0 I FIXO 4 6 4 Moxa ioLogik E1260 T Assignment Table In this section you will find a table with an overview of the Modbus registers that are saved in the Modbus master profile for the Moxa ioLogik E1 260 T In accordance with the XML structure each line of the table shows the attribute values of a Modbus register ass
18. 16 10 0 FIX A 65 DcMs Amp 11 DC current input 11 Input 16 10 0 FIX A 66 DcMs Amp 12 DC current input 12 Input 16 10 0 FIX A 67 DcMs Amp 13 DC current input 13 Input 16 10 0 FIX A 68 DcMs Amp 14 DC current input 14 Input S16 10 0 FIX A 69 DcMs Amp 15 DC current input 15 Input 16 10 0 FIX A 70 DcMs Amp l6 DC current input 16 Input S16 10 0 FIX A 26 MODBUS SC2xxx Tlen 13 Technical Information SMA Solar Technology AG 6 Modbus Profiles for External Devices 6 Modbus Profiles for External Devices With the Modbus profile Modbus devices slaves of other manufacturers can be integrated in the inverter The Modbus device profile acts like a Modbus device of SMA Solar Technology AG The Modbus master profile is an XML file in which for each channel tag one Modbus register of a slave device is allocated to any Modbus address For the assignments an address range from 0 to 65535 is available in each case Currently various Moxa IO modules from the ioLogik series are supported see Section 9 2 Unit IDs page 34 The relevant XML templates can be acquired adapted and imported from SMA Solar Technology AG The stored assignments are requested at regular intervals default 1000 ms Currently the Modbus device profile contains register assignments for the following devices e Moxa ioLogik E1240 T see Section 6 2 Moxa iologik E1240 T Assignment Table page 29 e Moxa iologik E1242 T see Section 6 3 Moxa iologik E1242 T Assignme
19. CHtlAnln 1079 WCtlCom 1077 WCtlMan 303 Off 8 ErrClr 733 RW 973 26 Ackn 10 VADrtPriMod 730 RW 16 VAr 18 W 12 WGraMod 725 973 O 727 iu uni 303 20 MODBUS SC2xxx Tl en 13 Technical Information SMA Solar Technology AG 5 3 2 Input Register 5 SMA Modbus Profile Assignment Tables In the following table you can find the parameters supported by the inverter which you can access under unit ID 3 and function code 0x04 see Section 3 6 1 Unit IDs page 10 s ae D to a 5 H T D O 28 gt E c o Ste ci 2 2 2 o fo c 2 Channel name Explanation 5 vw O a 5 DC voltage DC plus to DC 0 DcMs Vol 597 32 10 0 FIX V minus 2 DcMs Amp Stk1 DC current inverter bridge 1 600 S32 1 0 FIXO A 4 DcMs Amp Stk2 DC current inverter bridge 2 601 32 0 FIXO A 6 DcMs Amp Stk3 DC current inverter bridge 3 602 32 0 FIXO A 8 DcMs TotAmp DC current total 6146 32 0 FIXO A 10 DcMs TotWatt DC power total 603 32 0 FIXO kW DC voltage of the inverter 12 InvMs DclVol Stk1 616 32 10 0 FIX V bridge 1 DC voltage of the inverter 14 InvMs DclVol Stk2 617 32 10 0 FIX V bridge 2 DC voltage of the inverter 16 InvMs DclVol Stk3 618 32 10 0 FIX V bridge 3 18 InvMs TotA PhsA AC current L1 total 408 32 0 FIXO A 20 InvMs TotA PhsB AC current L2 total 409 32 0 FIXO A 22 InvMs TotA PhsC AC current L3 total 410 32 0 FIXO A 24 InvMs
20. PF Power factor cos phi 404 32 10000 0 FIX4 26 InvMs TotVA Apparent power total 401 32 0 FIXO kVA 28 InvMs TotW Active power total 402 32 0 FIXO kW 30 InvMs TotVAr Reactive power total 403 32 0 FIXO kVAr Line to line voltage L1 L2 utility 32 GriMs V PhsAB id 405 S32 10 0 FIX V gri Line to line voltage L2 L3 utility 34 GriMs V PhsBC id 406 S32 10 0 FIX V gri Line to line voltage L3 L1 utility 36 GriMs V PhsCA d 407 S32 10 0 FIX V gri 38 GriMs Hz Power frequency 607 S32 100 0 FIX2 Hz 40 TmpCab Acc Temperature in the AC range 751 32 10 0 FIX lt C Technical Information MODBUS SC2xxx Tlen 13 21 5 SMA Modbus Profile Assignment Tables SMA Solar Technology AG la amp ae D to 2 a o 5 ea S D 0 28 gt 5 BE Ror g 5 t 5 c G 2 Channel name Explanation gt a d O a 5 42 TmpCab Dcc Temperature in the DC range 750 32 10 0 FIX C T ture in the electroni 44 TmpCab Rio Tae aa gine S752 1832 10 0 FIXI C area Temperature in interior 46 TmpCab Max 6130 32 10 0 FIX C maximum value Temperature of the inverter 48 TmpStk IgbtMax bridge switch maximum 6100 32 10 0 FIX E value Temperature of the inverter 50 TmpStk PcbMax bridge assembly maximum 6099 32 10 0 FIX C value 52 Tmpexl Outside temperature 759 32 10 0 FIX C Temperature of the MV 54 TmptTrf 6107 32 10 0 FIX C transformer Switching status of the DC 56 DeSwiIStt 611
21. SMA Modbus Devices and Allocation of Unit IDs s sssssssssstsesssstrtessssrstreesssssrrteeessssrreessssrreeee 16 4 2 Importing the Modbus Profile File of External Devices iii 16 43 Exporting the Profile Fileisa coh tn nachos G ne ais nies ses tau a Mme wh ois lis ae thea dette nae RAs 16 AA Deletingihe Pongo lella 16 Technical Information MODBUS SC2xxx Tl en 13 3 1 Information on this Document SMA Solar Technology AG 5 SMA Modbus Profile Assignment Tables rrrrrrrrrerre renze serre see seesenee rese nie ninzeneene 17 5 1 Information on the Assignment Tables lea asi 17 5 2 PV System Parameters UnitD 2 rrcr rete nefsllbe lla 18 5 3 Inverter Parameter Unit ID 3 reant 19 5 3 1 Holding Parametersi tera EA E AE EA A A EA E 19 5 3 2 MESI create aaa 21 5 4 Zone Monitoring Parameter Unit ID 32 and 33 essssssssessssesseessssseeseesesseseesesseseesessensesesseasssesseassnees 26 6 Modbus Profiles for External Devices rrtrtrrrrrre rene rie reeeeeee riore rice zio nie nie nizie zione 27 6 1 Structure of the XML File for the Modbus Device Profile cssessssssssssessesesessesnesessessesneeesueaneeeeneaneneeesaneneesees 27 6 2 Moxa iologik E1240 T Assignment Table ssa rigata 29 6 3 Moxa iologik E1242 Assignment Table siriaca 29 6 4 Moxa iologik E1260 T Assignment Tables oa 30 7 UserDefined Modbus Profile iis allaccia ai 31 7 1 Stru
22. al onda 5 ld Sybase 5 1 5 Iypograpii s bilia 6 T6 fet lt 1 18 lt ae meee nec SAR ERRE RO RE OOO eno Tern PANE eee E SIRO 6 kZ Tems and Ab revidon e a a R E a E A N 6 2 SSCUntY aprile elia 8 23 infendedWse piccione Si dee ai ei bel de 8 2 2 Information on Data Sec riy nale Liar 8 3 Product Descriptiori alia 9 dull oTe 21319134 200 0 ee cri i ei 9 32 SMA Modbus PROG alli ae 9 33 JUseeDehined Mod ous Profile tcc rallo 10 Ac SMAMOdbusMasterbolle Rule lello 10 Bio PV Sysiem Topology rulli 10 3 6 Addressing and Data Transmission in the Modbus Protocol iii 10 3 6 1 Unitibsr ara iaia 10 3 6 2 Assignment of the Modbus Register to Unit IDS iiiiiee eee 11 3 63 File Formats Usdin i n ER E A a Gna ab UG GL Lcd IALIA LG E Lala sl is L Luana 11 3 6 4 Modbus Register Address Register Width and Data Block iiiiiiieieiiiieie 11 3 6 5 Address Range for Modbus Register eee 11 30 60 Data DIRKS ELUTEEL Ia PAE EEEE E 11 37 Address Types na hr a a e a E E E dea ede oe abe 12 3 8 Reading and Writing Data in the Modbus Protocol iii a 12 3 OMA Daia pece ei 13 Celati 13 3 9 2 L Bitlnteger Valvesivinsscnanenanenanonanenanananon anon anonanonanon anon anenanonanonanonanonaier 13 393 BZBit Integer VGlUEs aa aa EAA EAA EAA EAE ai 13 3 LO SMA Data Formats ss alinea aie ae E 14 4 Configuranioni Luria 16 4 1 Detection of
23. ation Cesko SMA Central amp Eastern products Magyarorsz g Europe s r o 49 561 9522 2499 Polska Praha Fuel Save Controller PV Diesel uel Save Controller jese SA NI 420 235 010 417 Hybrid Systems 49 561 9522 3199 Slovensko Sunny Island Sunny Backup EAAS SO SMA Hellas AE Hydro Boy 49 561 9522 399 K npo AGHva Sunny Central 49 561 9522 299 30 210 9856666 Espafia SMA Ib rica Tecnologia Solar France SMA France S A S Portugal S L U Lyon Barcelona 33 472 22 97 00 34 935 63 50 99 Italia SMA Italia S r l United Kingdom SMA Solar UK Ltd Milano Milton Keynes 39 02 8934 7299 44 1908 304899 United Arab SMA Middle East LLC India SMA Solar India Pvt Ltd Emirates Abu Dhabi Mumbai 97 2 234 6177 9 22 61713888 36 MODBUS SC2xxx Tl en 13 Technical Information SMA Solar Technology AG 10 Contact Herala SMA Technology Korea Co Ltd SMA Solar Thailand Co Ltd MS 82 2 520 2666 66 2 670 6999 South Africa SMA Solar Technology Argentina SMA South America SPA South Africa Pty Ltd Brasil Santiago Cope Town Chile 562 2820 2101 08600SUNNY 78669 Per International 27 0 21 826 0600 Australia SMA Australia Pty Ltd Other countries International SMA Service Line Sydney Niestetal Germany Toll free for Australia 1800 SMA Toll free worldwide AUS 00800 SMA SERVICE 1800 762 287 International 61 2 9491 4200 800 762 7378423 Technical Information MODBUS SC2xxx Tl en
24. cture of the XML File for the User Defined Modbus Profile ii 31 8 froubleshootingi caiiadaciclhal iii 33 9 Technical Data ici pale rale a lalla 34 Sl Supposed SMA Devices asics act ties tes mart scart laid ai ae att 34 9 2 Supported Modbus Devices from Other Manufacturers ii eee 34 93 Modbus Communication Posa oeoelio n belolilelopiolaziane 34 OA Reactiontime ssaa iii iii bll ii iaia liana iii 35 9 5 Interval of the Data Request and Number of Values iiii e 35 ORS Tre a ETE iaia T 36 4 MODBUS SC2xxx Tl en 13 Technical Information SMA Solar Technology AG 1 Information on this Document 1 Information on this Document 1 1 Validity This document is valid for the following device types from firmware version 1 0 e Sunny Central 1850 US SC 1850 US e Sunny Central 2200 US SC 2200 US e Sunny Central 2200 SC 2200 e Sunny Central 2500 EV SC 2500 EV It describes the variant of the communication protocol Modbus Application Protocol implemented by SMA and also the corresponding parameters measured values and data exchange formats This document does not contain any information on software which can communicate with the Modbus interface see the software manufacturer s manual 1 2 Target Group This document is intended for qualified persons The activities described in this document are to be performed by qualified persons only Quali
25. e 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 Individual unit IDs and unitID ranges are reserved and are not used with automatic system detection With manual detection however these can be used Unit ID Explanation 2 This unit ID is reserved for the PV system parameters 3 This unit ID is reserved for the inverter Ato 15 Reserved 16 to 31 External devices The last character of the IP address of the external device corresponds to the assigned unit ID 32 Left DC module for zone monitoring 33 Right DC module for zone monitoring 34 to 99 Reserved 100 User defined modbus profile 101 Reserved 102 SMA Power Plant Controller 103 to 247 Reserved 10 MODBUS SC2xxx Tl en 13 Technical Information SMA Solar Technology AG 3 Product Description Unit ID Explanation 255 Devices that are assigned to this unit ID cannot be addressed You must assign unit IDs from the range 3 to 247 to these devices see Section Fehler Verweisquelle konnte nicht gefunden werden Fehler Verweisquelle konnte nicht gefunden werden page Fehler Textmarke nicht definiert 3 6 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 assignment tab
26. ed Modbus profile can be that the measured values and parameters which are relevant for controlling your system can be applied to consecutive Modbus addresses and can therefore be read out or set in one block 7 1 Structure of the XML File for the User Defined Modbus Profile The user defined Modbus profile is created in the file VirtualDevice vdp in addition to the SMA Modbus profile The basic structure of the XML file is as follows lt xml version 1 0 encoding UTF 8 2 gt lt VirtualModbusProfile gt lt Device name Virtual device type virtual device description Merge channels of different devices to one device gt lt Mapping gt lt channel unitid aaa source bbbbb destination ccccc gt lt VirtualModbusProfile gt Legend for XML tags and attributes XML tag or attribute Explanation lt VirtualModbusProfile gt A user defined Modbus profile is specified within this XML structure lt VirtualModbusProfile gt lt ModbusDevices gt The device is described within this XML structure lt ModbusDevices gt lt channel gt Within a channel tag a Modbus address of a unit ID is redefined unitid aaa Specifies the unit ID of the device whose Modbus addresses are to be redefined Possible unit IDs for individual devices are 3 to 247 source bbbbb Specifies a Modbus address of the device selected under unitid whose value is to be used as source Information on the assignment tables see Section 5
27. ernal Devices SMA Solar Technology AG XML tag attribute Explanation description ccc Modbus ipaddress 192 168 100 16 Here you can assign any term for the use The XML template contains an entry appropriate for the device IPv4 address of the slave device The IP addresses can be assigned in the range from 192 168 100 16 to 192 168 100 31 port 502 Modbus communication port of the slave device The default setting is 502 unitid 0 Unit ID 8 bit of the slave device see manufacturer datasheet lt Mapping gt Within this XML structure the profiles of the different channels are defined lt Mapping gt lt Channel gt Within every channel tag one source register of a slave device is assigned to the Modbus profile The following attributes can be assigned to each channel XML attribute Explanation name ddd Here you can assign any name to the assignment tagid_index Numerical index as suffix to the name of a channel e g Aln1 Aln2 Aln3 If no index is required then this attribute can remain empty source Decimal address of the source register see attribute destination You can find possible source values in the datasheet of the manufacturer of each Modbus device destination Decimal address 0 to 65535 of the Modbus register to which the value is assigned destination register Observe the length in WORD of the source register see attribute size
28. fied persons must have the following skills e Knowledge of IP based network protocols e Knowledge of installation and configuration of IT systems e Knowledge of how SMA inverters work and are operated e Training in how to deal with dangers and risks associated with operating electrical devices and systems e Knowledge of and compliance with this document 1 3 Additional Information SMA Documents Additional information is available at www SMA Solar com Additional Documents Document title Source Service Name and Transport Protocol Port Number http www iana org assignments service names port Registry numbers service names port numbers xml Modbus Application Protocol Specification http www modbus org specs php 1 4 Symbols Symbol Explanation i Information that is important for a specific topic or goal but is not safety relevant O Indicates a requirement for meeting a specific goal M Desired result x A problem that might occur Technical Information MODBUS SC2xxx Tl en 13 5 1 Information on this Document 1 5 Typographies SMA Solar Technology AG Typography Usage Example bold File names Select Settings Elements to be selected Read off the configured port in the field Port Elements on a user interface Enter the value 502 in the field Port Elements to be entered Parameters gt Connects several elements to be selected Select Settings gt Port Button Key Button or key to be selected or
29. ical Data 9 1 Supported SMA Devices This document is only valid for the following SMA devices Inverters e Sunny Central SC1850 US SC 1850 US 10 e Sunny Central SC 2200 US SC 2200 US 10 e Sunny Central SC 2200 SC 2200 10 e Sunny Central SC2500 EV SC 2500 EV 10 9 2 Supported Modbus Devices from Other Manufacturers The Modbus master profile described in this document is valid for the following Modbus capable devices from other manufacturers e Moxa iologik E1240 T e Moxa iologik E1242 T e Moxa iologik E1260 T 9 3 Modbus Communication Ports The following table shows the default settings of the supported network protocols Network protocol Communication port default setting TCP UDP 502 i Using 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 port numbers xml Li Changing the communication port If you change the Modbus port of the inverter you must also change the Modbus port of a connected Modbus master system Otherwise the inverter can no longer be accessed via the Modbus protocol 34 MODBUS SC2xxx Tl en 13 Technical Information SMA Solar Technology AG 9 Technical Data 9 4 Reaction time The typical reaction time of the
30. ignment The attribute values in the columns source type and size correspond to the standard values of the Moxa ioLogik E1260 T i Changed settings of the Moxa ioLogik E1260 T If you change the settings e g ip description etc of the Moxa iologik E1260 T you also have to change the attribute values of the Modbus master profile XML tag or attribute Explanation lt ModbusMasterProfile gt The Modbus device profile is defined within this XML structure lt ModbusMasterProfile gt The following channels are defined in the profile file o o g g O 1 g 2 D gt hs a aha 5 iy 8 3 9 x 2 D F s o 5 N 3 Ri E o o Channel name 2 a me D me a a a o L 5 Temperature 1 1536 Oto5 Input U16 1 0 1 0 0 65535 FIXO C to to 6 1541 30 MODBUS SC2xxx Tl en 13 Technical Information SMA Solar Technology AG 7 User Defined Modbus Profile 7 User Defined Modbus Profile You can change the assignment of the Modbus addresses by creating a user defined Modbus profile In the user defined Modbus profile the address assignments that were defined in the SMA Modbus profile can be reassigned to other Modbus addresses You can use the entire Modbus address range from 0 to 65535 The user defined Modbus profile can be called up via the gateway like an additional device and has a separate unit ID with a default setting of 100 see Section 3 6 1 Unit IDs page 10 One advantage of the user defin
31. interface can be accessed via the LAN port of the inverter and it can be used via the protocol Modbus TCP and by the protocol Modbus UDP The enclosed documentation is an integral part of this product You must read and observe the documentation and keep it in a convenient place for future reference 2 2 Information on Data Security i Data security in Ethernet networks You can connect the inverter to the Internet When connecting to the Internet there is a risk that unauthorized users can access and manipulate the data of your system e Take appropriate protective measures e g Setupa firewall Close unnecessary network ports Only enable remote access via VPN tunnel Do not set up port forwarding at the Modbus port in use 8 MODBUS SC2xxx Tl en 13 Technical Information SMA Solar Technology AG 3 Product Description 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 system communication in PV power plants The Modbus protocol is based on a master slave architecture Grid operator Modbus Master Modbus Slave Setpoints Modbus Master Power Plant Controller Grid analyzer SUNNY CENTRAL Control values Modbus Modbus Modbus _Actual values Master Slave Master For control of relevant i instantaneous values
32. inverter is 100 ms The reaction time is the interval within which value changes in the SMA devices are available at the Modbus interface of the inverter for monitoring Consequently value changes in a Modbus master system e g in a SCADA system can only be displayed in a corresponding or larger interval 9 5 Interval of the Data Request and Number of Values Limit of the data processing capacity For system stability reasons the time period between data transfers via the Modbus protocol should be at least 100 ms 123 Modbus registers can be transferred per data block Technical Information MODBUS SC2xxx Tl en 13 35 10 Contact 10 Contact SMA Solar Technology AG If you experience any technical problems with our products please contact the SMA Service Line We need the following information in order to provide you with the necessary assistance e Modbus master software or hardware used e Software version of the inverter e Type of communication interface between the inverter and the devices e Type serial numbers and software version of the devices that are connected to the PV system Denmark SMA Solar Technology AG Belgium SMA Benelux BVBA SPRL Germany Niestetal Germany Belgique Mechelen Austria SMA Online Service Center Belgi 32 15 286 730 Switzerland www SMA de Service Luxemburg Sunny Boy Sunny Mini Central Luxembourg S Tri te Netherlands 49 561 9522 1499 Monitoring Systems communic
33. les and is also shown in this document see Section 5 SMA Modbus Profile Assignment Tables page 17 In the assignment table PV System Parameters unit ID 2 parameters and measured values of the inverter and of the PV system are saved In the assignment table Inverter unit ID 3 the parameters and measured values used in the inverter are saved In the assignment tables External devices unit ID 16 to 31 the channels used for the various external devices are saved 3 6 3 File Formats Used The Modbus protocols are saved in XML format For easier assignment the profiles of the various devices have different file extensions Extension Explanation kmp Modbus profile of the inverter vdp User defined modbus profile mmp Modbus profile of external devices 3 6 4 Modbus Register Address Register Width and Data Block A Modbus register is 16 bits wide For wider data types 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 the data block is the start address of the data block In addition larger data blocks can be formed 3 6 5 Address Range for Modbus Register For addressing Modbus registers the address range O to OxFFFF is available with 65536 addresses 3 6 6 Data Transmission In accordance with the Modbus specification only a specific volume of data can
34. mat 3 9 2 16 Bit Integer Values 16 bit integers are stored in a Modbus register Modbus register 1 Byte 0 1 Bits 8 to 15 0 to 7 3 9 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 8 to 15 0 to 7 Technical Information MODBUS SC2xxx Tl en 13 13 3 Product Description SMA Solar Technology AG 3 10 SMA Data Formats The following SMA data formats describe how SMA data is to be interpreted The data formats are used 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 Duration Duration Time in seconds in minutes or in hours depending on the Modbus register Date time DT Date time in accordance with country setting Transmission as UTC seconds since 1970 01 01 Factor 1 FIXO Decimal number commercially rounded no decimal place a Scaling factor to define the decimal places up to 8 to FIX8 Decimal number commercially rounded number of decimal places in accordance with the number FIX2 corresponds to a decimal number with two decimal places Coded numerical values Display of settings in abbreviations e g for operating states or selected procedures for setpoint Here it is only possible to select one ENUM numerical value in each case The breakdown of the possible codes can be fou
35. nd directly under the designation of the Modbus register in the SMA Modbus profile assignment tables ENUM_FLAG Coded numerical values Display of settings in abbreviations e g for operating states or selected procedures for setpoint Here it is possible to select multiple numerical values VERSION Firmware version see Firmware version extract below TIME_DDMMYY Display as date e g 020913 for September 2 2013 TIME_YYYYMMDD Display as date e g 20130902 for September 2 2013 TIME_HHMMSS Display as time e g 134725 for 13 47 25 TIME_YYYYMMDDHHMMSS Display as date and time e g 20130902134725 for September 2 2013 13 47 25 BITMASK Assignment of meaning of the individual bits of the register PLAINSTRING Display as text ARRAY Display as text IPV4 Display as IP V4 address e g 192 168 0 5 IPV4_ADDR_LIST IPVA_ADDR_MASK Display as list of IP V4 addresses Display as IP V4 address and netmask IPV6 Display as IP V address e g 2001 0db8 85a3 08d3 1319 8a2e 0370 7344 MAC Display as MAC address e g 1 2 34 56 78 9A BC DURATION Display as duration e g days h min sec or h min sec ACTION Display as visual button 14 MODBUS SC2xxx Tl en 13 Technical Information SMA Solar Technology AG 3 Product Description Format Explanation ACTION_CONFIRMED Display as visual button with option to confirm BOOL Display as checkbox or any other boolean display Abstract firmware version
36. nt Table page 29 e Moxa ioLogik E1260 T see Section 6 4 Moxa iologik E1260 T Assignment Table page 30 6 1 Structure of the XML File for the Modbus Device Profile The Modbus device profile is created in the file mmp The basic structure of the XML file is as follows lt xml version 1 0 encoding UTF 8 2 gt lt ModbusMasterProfile gt lt ProfileVersion version 514 gt lt ModbusDevices gt lt Device name aaa type bbb description ccc gt lt Modbus ipaddress 192 168 100 16 port 502 unitid 16 gt lt Mapping gt lt Channel gt lt Mapping gt lt Device gt lt ModbusDevices gt lt ModbusMasterProfile gt Legend for XML tags and attributes The term source register in the following table stands for a specific Modbus register of the slave device which is used as source for the assignment XML tag attribute Explanation lt ModbusMasterProfile gt The Modbus device profile is defined within this XML structure lt ModbusMasterProfile gt lt ModbusDevices gt The Modbus device profile is defined within this XML structure lt ModbusDevices gt Device name aaa Here you can assign any term for the device name The XML template contains an entry appropriate for the device type bbb Here you can assign any term for the device type The XML template contains an entry appropriate for the device Technical Information MODBUS SC2xxx Tl en 13 27 6 Modbus Profiles for Ext
37. odbus Profile Assignment Tables 5 2 PV System Parameters Unit ID 2 In the following table you can find the PV system parameters that you can access using unit ID 2 and function code SMA Solar Technology AG 0x04 The PV system parameters represent measured values and parameters of the inverter and also PV system devices that are connected via the Modbus protocol Parameters such as time settings are transferred by the inverter to the devices of the PV system and there depending on the device type processed further Measured values such as energy meter values are queried by the devices and made available as accumulated values 5 k A e 5 a a z2 ge i e 2 Description number code o2 DO u lt 0 Version number of the SMA Modbus profile 2 U32 RAW RO 2 Device ID of the communication interface 2 U32 RAW RO Modbus data change Meter value is increased on each 6 2 U32 RAW RO access 18 MODBUS SC2xxx Tken 13 Technical Information SMA Solar Technology AG 5 3 5 3 1 Inverter Parameter Unit ID 3 Holding Parameters 5 SMA Modbus Profile Assignment Tables In the following table you can find the measured values supported by the inverter which you can access under unit ID 3 and function code 0x03 0x06 and 0x10 see Section 3 6 1 Unit IDs page 10 la amp oe 2 3 I 2 5 Be Sey eae tah o D B 5 5 c jo fo c Channel name Explanation D Q vw O a gt Operating
38. odbus profile enter the IP address under which the device can be accessed 3 Save change Give the file a unique name If multiple files of the same name are used during an import the existing file will be overwritten in each case by the imported file 4 Log in to the user interface of the inverter as installer see the inverter user manual 5 Import the changed Modbus profile see inverter user manual Here select Modbus Profiles from the list of available types A unit ID is assigned to the device automatically 4 3 Exporting the Profile File 1 Log in to the user interface of the inverter as installer see the inverter user manual In the main navigation select Export see inverter user manual Select Modbus profiles from the list of available types Select the Modbus profile to be exported a RF N If the profile file is to be saved to an external storage medium that is present in the inverter select the Copy file to external device button If the profile file is to be saved on the computer select the Download button 6 Choose a storage location for the profile file and save it 4 4 Deleting the Profile File 1 Log in to the user interface of the inverter as installer see the inverter user manual In the main navigation select Export see inverter user manual Select Modbus profiles from the list of available types Select the Modbus profile to be deleted A R wo Select the button Delete files
39. on 3 10 unit Displayed unit of the channel i Modbus exceptions For Modbus exceptions see Modbus Application Protocol Specification at http www modbus org specs php 6 2 Moxa ioLogik E1240 T Assignment Table In this section you will find a table with an overview of the Modbus registers that are saved in the Modbus master profile for the Moxa ioLogik E1240 T In accordance with the XML structure each line of the table shows the attribute values of a Modbus register assignment The attribute values in the columns source type and size correspond to the standard values of the Moxa iologik E1240 T i Changed settings of the Moxa ioLogik E1240 T If you change the settings e g ip description etc of the Moxa ioLogik E1240 T you also have to change the attribute values of the Modbus master profile The following channels are defined in the profile file 5 3 g 9 5 E ae 5 5 2e E o z o 2 p x CIR gt 3 3 aa a ace Nuawite Channel name 2 a 5 D ks a a z 0 E g 5 Aln 1 to Aln8 1 Oto Oto 65535 Input S16 1 0 1 0 32768 32768 FIX2 A 65535 oy 6 3 Moxa ioLogik E1242 T Assignment Table In this section you will find a table with an overview of the Modbus registers that are saved in the Modbus master profile for the Moxa ioLogik E1242 T In accordance with the XML structure each line of the table shows the attribute values of a Modbus register assignment The attribute
40. pressed Select Next Source Data channel name Reading of the system time UTC SerTm 1 6 Nomenclature Complete Designation SMA Modbus Master Profile Designation in this Document Modbus master profile Sunny Central 1850 US Inverter Sunny Central 2200 US Sunny Central 2200 Sunny Central 2500 EV 1 7 Terms and Abbreviations Term abbreviation Attribute value Designation Explanation Changeable content of an XML attribute e g attribute My content CT Current measuring unit Hardware for string current monitoring DWORD Data with a width of 32 bits as per IEC 61131 3 Device ID Numerical value that identifies a certain SMA device type e g 102 SMA Power Plant Controller GFDI Ground Fault Detection and Detection of the grounding error and subsequent Interruption interruption of the electric circuit Hex Hexadecimal number IP Internet protocol Network protocol for connections via the Internet MPP Maximum Power Point Maximum power point 6 MODBUS SC2xxx Tl en 13 Technical Information SMA Solar Technology AG 1 Information on this Document Term abbreviation Designation Explanation NaN Not a Number No valid value is available PMAX Active power maximum value The device can generate active power up to this limit Source register Modbus register that is assigned to a different Modbus address destination register RO Read Only Value can only
41. uct Description Writing multiple Modbus registers as a data block If multiple registers are written in the data block Modbus command 0x10 and an error occurs when writing the next register in the data block is used to proceed If some data is dependent on other data or if some data is mutually exclusive the data is only processed if the entire data block is valid Otherwise the entire data block is discarded In the event of an error a Modbus exception will be generated Reading multiple Modbus registers as a data block If a data block is read and if at least one register defined in the Modbus profile can be determined in its data range an answer is returned If none of the Modbus registers are defined in the data range of a data block in the Modbus profile the query is invalid and a Modbus exception is generated Modbus exceptions For Modbus exceptions see Modbus Application Protocol Specification at http www modbus org specs php 3 9 SMA Data Types 3 9 1 Data Types The following table shows the data types used in the SMA Modbus profile The SMA data types are listed in the assignment tables in the Type column They describe the data widths of the assigned values Type Description U16 A word 16 bit WORD in the local processor format S16 A signed word 16 bit WORD in local processor format U32 A double word 32 bit DWORD in the local processor format 32 A signed double word 32 bit DWORD in the local processor for

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