SMA SPEEDWIRE FIELDBUS - SMA Solar Technology AG
Contents
1. Cat7 network plugs also called GG 45 are not approved since they are not downward compatible and use another pin assignment i Connect all insulated conductors for RJ45 connection To avoid communication interferences all insulated conductors must be connected when connecting the network plugs including the insulated conductors not required Properties Category features Cat5 Cat5e Cat Cat A Cat7 GG 45 Speedwire approval GP 2 Data transmission Upto 10 100 Mbitand Up to 1 gigabit and Up to 10 gigabit rate gigabit 10 gigabit Symbols used approved 3 not approved NOTICE Do not use ISDN and RJ11 plugs ISDN plugs and RJ11 plugs can also be plugged into network ports The connected device can be damaged irreparably due to the voltage supplied to the ISDN cables e Never use network ports together with ISDN and RJ11 plugs For the network plug connection the following applies The network cable shield must always be connected with the shield connection of the network plug For further information on the network plug connection refer to the respective network plug documentation 22 Speedwire Tlen 1 Technical Information SMA Solar Technology AG 4 Basics for Planning a PV System with Speedwire 4 Basics for Planning a PV System with Speedwire 4 1 Selecting the Topology The flexible network design is an essential benefit of Speedwire The Speedwire devices selected and their phy2. Hl Node SEE Plug BEE Interface e g network connection box Figure 4 Connection with two interfaces in accordance with the structured cabling principle example The structured cabling requires an installation cable with a maximum length of 90 m When connecting Speedwire devices via interfaces 5 m of patch cable should be planned for on both sides A maximum of two interfaces may be used in an end to end link with a total length of 100 m Only a few interfaces should be utilized to prevent additional sources of disturbance If more interfaces are needed the maximum length of the end to end link is reduced For each additional interface that exceeds the maximum number of two interfaces per 100 m the total length of the network cable must be shortened by approximately 4 m i Influence of high ambient temperatures on the maximum cable length The maximum cable length in accordance with the standards of the structured cabling must be reduced at high ambient temperatures Technical Information Speedwire Tl en 1 1 17 3 Speedwire Communication in PV Systems SMA Solar Technology AG Use of Optical Fibers If optical fibers are used besides copper cables in Speedwire networks corresponding media converters must be used Sunny Boy Sunny Boy CATS CATS LWL LWL Figure 5 Use of media converters when using optical fibers More information concerning the specifics when using optical fibers can be found in the
3. Technical Information SMA SPEEDWIRE FIELDBUS Speedwire Tl en 11 Version 1 1 ENGLISH SMA Solar Technology AG Table of Contents Table of Contents 1 InformationonthisDocument 5 2 introduction i ovs eer Ee a 7 2 1 Whakls Spesdwires c altre pd paced 7 2 2 Speedwire Products ecce ee aa 8 2 3 Skills of Qualified Persons se 5 va ro X ees 9 2 4 Safety Precautions o s e poete Sek E p eR ER E Ro 9 3 Speedwire Communication in PV Systems 10 3 1 Requirements for Using Speedwire 10 3 2 Requirements for Qualified Network Components 10 3 9 Speedwire Properties e tx Rd bre Badi 11 3 3 1 Data Transfer Rate b ae a 11 3 3 2 Maximumlinelengths Endto Endlinks 11 3 3 3 CommunicationProtocolsUsed 11 3 3 4 Device Addressing and Device Detection 12 3 4 CablingintheSpeedwreNetworks 13 3 4 1 CableReguirements 13 3 4 1 1 Generalinformation 13 3 4 1 2 Cable Categori ss sele i sy x as Ged 14 ZATI Cable Shielding de fet agains vai 15 SADA Grounding see resi em or beet rcp END Mae 16 IATE Gable Sheath e eo ri rear 16 3 4 1 6 Cabling Plan RO nern rn 17 3 4 1 7 CablingRecommendations 18 3 4 2 Network Terminali cc
4. cable AWGxx 7 AWG26 to AWG22 AWG26 to AWG22 corresponds to a conductor cross section of 0 13 mm to 0 32 mm Example of a standard patch cable AWG26 7 7 single wires with 0 13 mm cross section The term xxAWG is also used for some network cables Installation cables are also referred to as AWG24 fixed equals AWG24 1 3 4 1 2 Cable Categories Profinet cable types can be used in addition to eight wire standard network cables for Speedwire In European standardization cables are also categorized by classes but commonly in categories Cat category This category determines which data transfer rate is possible at most with the respective network cable The following table shows which category network cables must have for Speedwire Features Category Properties Cat3 Cat5 Cat5e Cat Cat a Cat7 Class C D E F Speedwire approval GP GP vy Data transmission Up to 10 Mbit s Up to Up to 1 gigabit Up to 10 gigabit rate 10 100 Mbit and 10 gigabit and gigabit Symbols used gt approved X not approved 14 Speedwire Tlen 1 Technical Information SMA Solar Technology AG 3 Speedwire Communication in PV Systems 3 4 1 3 Cable Shielding In order to achieve good transmission properties you should only use the following cable shield variants for Speedwire Designation Designation in Description accordance with old standard SF UTP S FTP Total braided shields and total shielding foil with
5. respective standards see Section 2 3 Skills of Qualified Persons page 9 3 4 1 7 Cabling Recommendations For Speedwire cabling SMA Solar Technology AG recommends cable type SMA COMCAB OUT for laying outdoors and SMA COMCABIIN for laying indoors SMA COMCAB cables are Profinet cables type B for flexible laying and available in 100 m 200 m 500 mor 1 000 m 3 4 2 Network Terminal 3 4 2 1 General Information The network connection is made via RJ45 RJ45 network port and RJ45 network plug RJA5 is the most common connection technology for Ethernet networks Only two line pairs are required for Speedwire meaning four wires of the network cable All Speedwire ports support the Auto MDI MDIX function also called auto crossing This means that an automatic switching of sender and receiver is integrated in all Speedwire devices Thus there is no need to differentiate between crossed network cables crossover cables and uncrossed network cables when laying cables 18 Speedwire Tlen 1 Technical Information SMA Solar Technology AG 3 Speedwire Communication in PV Systems 3 4 2 2 Terminal Assignment of Network Plugs pins 1 8 Figure 6 Contact pin assignment network plug Contact pin of the network Fast Ethernet MDI Fast Ethernet MDI X plug RJ45 assignment assignment TX RX 2 TX RX 3 RX TX 4 Not assigned Not assigned 5 Not assigned Not assigned 6 RX TX 7 Not ass
6. DC from the PV array into alternating current AC which is necessary for connection of most normal household devices and especially for feeding PV energy into an existing transmission line 32 Speedwire Tlen 1 1 Technical Information SMA Solar Technology AG 7 Glossary IP Address A network address that is assigned to each node exactly once so that data packages can be correctly addressed and transmitted IP addresses can be automatically assigned when auto IP DHCP is activated or manually assigned to the node when auto IP DHCP is deactivated Network Switch Network device connecting the nodes to each other and allows for communication in the network segment The nodes are connected to each other via a network cable with the network switch The network switch forwards the data packages within the network segment to the addressed nodes PV Cell An electronic component that generates electrical energy when irradiated with sunlight Since the electrical voltage of a single PV cell is very low approximately 0 5 V multiple PV cells are combined with PV modules The most common semiconductor material presently used for PV cells is silicon which is manufactured in different forms monocrystalline polycrystalline amorphous PV Module Electrical connection of several PV cells encapsulated in an enclosure to protect the sensitive cells from mechanical stress and environmental influences PV System Designation for PV systems for powe
7. X or Gigabit Ethernet 1 OOOBASE T Support of autonegotiation Support of autocrossing Support of the data transfer procedure full duplex Network connection technology RJ45 with shield connection OOo o 0 0 At least two network ports for realization of a line topology for line topology end users one network port or one network connection is sufficient O The MAC address storage of the network switches used must have at least 512 MAC address entries each and be sufficient for the PV system size planned LI Router or network switches that are used outdoors must have degree of protection IP65 Each gigabit interface has 10BASE T 100BASE TX 1000BASE T and is thus downward compatible to Fast Ethernet 10BASET 100BASETX Autonegotiation also auto sensing automatic setting of the fastest possible speed that is supported by both link partners 10 Speedwire Tlen 1 1 Technical Information SMA Solar Technology AG 3 Speedwire Communication in PV Systems 3 3 Speedwire Properties 3 3 1 Data Transfer Rate Speedwire is designed as a fieldbus for PV system communication for a data transfer rate of 100 Mbit s This data transfer rate is also supported by network components with the designation 10 100Mbit s All Speedwire devices use two transfer standards TOBASET 10 Mbit s 100BASE TX 100 Mbit s The data transfer rate is automatically adjusted by all Speedwire devices 100 Mbit s with full duplex is sele
8. address in the respective subnetwork The IP address can be assigned in various ways If there is no DHCP server in the Speedwire network the IP addresses are assigned automatically among the nodes by means of the IPvALL protocol If there is a DHCP server in the Speedwire network e g Cluster Controller or router all IP addresses can be assigned by the DHCP server If necessary the IP addresses can also be assigned statically for example by means of the SMA Connection Assist or via the respective communication device e g Cluster Controller Device Detection Depending on the SMA products used device detection can take place automatically via a communication product e g Cluster Controller or via software Sunny Explorer or SMA Connection Assist see manual of the SMA product You can obtain the Sunny Explorer and SMA Connection Assist software free of charge from the download area at www SMA Solar com 12 Speedwire Tl en 1 1 Technical Information SMA Solar Technology AG 3 Speedwire Communication in PV Systems 3 4 Cabling in the Speedwire Networks 3 4 1 Cable Requirements 3 4 1 1 General Information i Laying network cables indoors and outdoors e Only use network cables that have each been approved for laying them inside and outside of buildings This applies especially to laying the cables underground The following terms are used in network device cabling For patch cables Network cable flexible F
9. astest possible data transfer rate is negotiated which supports each node Central Inverter Inverter concept in which all PV modules are connected to each other in series or parallel and a single inverter is used for feeding power into the utility grid DHCP Abbreviation for Dynamic Host Configuration Protocol DHCP is a server service with which nodes are automatically integrated into a local network If no DHCP should be used by the server or router in the network nodes must be integrated into the local network manually Static network settings must be carried out for the affected nodes an IP address suitable for the local network and subnet mask among other things End to End Link Maximum line length including all connectors and interfaces between two nodes in a Speedwire network Ethernet Wire based network connection that allows data exchange between individual nodes hardware such as computer router printer in local networks through transfer of data packages Network protocols software such as TCP IP control the data transmission Full Duplex Data transfer method where data packages are transmitted between two nodes bidirectionally at once Both nodes are in send receive mode simultaneously Half Duplex Data transfer method where data packages are bidirectionally transmitted alternately between two nodes Both nodes alternate between send and receive mode Inverter A device for converting the direct current
10. c Solar Switch and the DC connectors form a DC load disconnect unit IP Internet Protocol LAN Local Area Network LED Light Emitting Diode OF Optical Fiber PV Photovoltaics WAN Wide Area Network 6 Speedwire Tl en 1 1 Technical Information SMA Solar Technology AG 2 Introduction 2 Introduction 2 1 What is Speedwire Speedwire is a wired Ethernet based fieldbus for the implementation of powerful communication networks in decentralized large scale PV power plants Speedwire uses the internationally established Ethernet standard the Ethernet based IP protocol as well as the communication protocol SMAData2 optimized for PV systems This enables a consistent 10 100 Mbit data transmission to the inverter as well as reliable monitoring control and regulation of the PV system The Speedwire network can be set up with the following optional topologies Line topology see Section 4 1 1 page 23 Star topology see Section 4 1 2 page 24 Tree topology see Section 4 1 3 page 25 The Speedwire fieldbus consists of e Qualified network components such as network switches or network cables see Section 3 2 Requirements for Qualified Network Components page 10 and Section 3 4 1 Cable Requirements page 13 e Speedwire system components of SMA Solar Technology AG such as Cluster Controller Sunny Home Manager SMA Energy Meter and inverters with Speedwire interface see Section 2 2 Speedwire Products page 8 Tech
11. c eter me ETHER 18 3 4 2 1 Generalinformation 18 3 4 2 2 Terminal Assignment of Network Plugs 19 3423 NetworkPorlEDs 20 3 4 2 4 TerminalAssignmentColorSchemes 21 3 4 2 5 NetworkPlugConnecion 22 Technical Information Speedwire Tl en 1 1 3 Table of Contents 4 Basics for Planning a PV System with Speedwire 4 1 Selecting the Topology zurueck erases Dre tvs oes 4 1 1 Fine Topology spss se Hesse ee PCR bed 4 12 Star Topology nek ee stk oe di REESE 4 1 3 Tree Topology cire ili eee 4 2 Information on Laying the Network Cables 4 2 1 Generalinformation 4 2 2 Information on Interference Suppression 4 2 3 Mechanical Protection of Network Cables 4 3 Checking the Speedwire Cabling Commissioning and Operation of a PV System with Speed Wiles si sper err ar eek FAQ poten e e e ee df awe Glossary devo a ous elia Speedwire Tl en 1 1 SMA Solar Technology AG Technical Information SMA Solar Technology AG 1 Information on this Document 1 Information on this Document Target Group This document is for qualified persons who are planning a PV system with SMA Speedwire devices or intend installing one see Section 2 3 Skills of Qualified Persons page 9 Symbols Explanation A DANGER Indicates a hazard
12. cted as standard 3 3 2 Maximum Line Lengths End to End Links The maximum line length between two nodes is also called end to end link The maximum length of the end to end link depends on the cable type used e When using installation cables e g Profinet cables and a maximum of two interfaces 100 m at maximum e When using patch cables maximum of 50 m The maximum total length of the Speedwire fieldbus depends on the end to end link and the number of devices allowed per communication product Example maximum total length for PV systems with Cluster Controller Cluster Controller can only manage a maximum of 75 inverters The end to end link between the nodes Cluster Controller inverter is 100 m each 75x 100 m 7 500m Thus the maximum total length is 7 500 m 3 3 3 Communication Protocols Used The Internet protocol v4 IPv4 is used as a communication protocol OSI level 3 The user datagram protocol UDP is used as a transport protocol OSI level 4 SMA Data 2 telegrams are transmitted in the UDP IP data frame Figure 1 Design of the Speedwire communication protocol A coupling device or a network connection box can be used as an interface Technical Information Speedwire Tl en 11 11 3 Speedwire Communication in PV Systems SMA Solar Technology AG 3 3 4 Device Addressing and Device Detection Device Addressing When using the internet protocol it is necessary for each node to receive a unique IP
13. ded when there are more than two interfaces in the end to end link If necessary the path attenuation must be reduced or the end to end link shortened to meet the channel class D requirements 1 Measure with an Ethernet functional or acceptance tester An Ethernet functional tester can be used to measure if and how fast data packages can be transmitted over the distance measured Cabling parameters such as cable length attenuation crosstalk etc can also be measured For further information on Ethernet functional and acceptance testers refer to the technical documentation of the respective device 2 Diagnosis of the cabling with the computer Speedwire data traffic can be recorded and analyzed when a computer with diagnostic software is connected to the Speedwire network already in operation The diagnostic software available on the market cannot be described more closely in this document due to its functions and operation being different For further information on Ethernet diagnostic software refer to the technical documentation of the respective software i Acceptance of data links When accepting data links it is recommended to measure each link with an acceptance tester and to document the test results in a measurement report If tested and pre assembled patch cables are used for connecting interfaces and nodes it is sufficient to test the fixed part of the connection permanent link 28 Speedwire Tlen 1 Technical Infor
14. eme Speedwire requires two pairs as a minimum meaning four conductors The following table shows the terminal assignment and the respective color scheme Network Terminal Color scheme for Color scheme for Color scheme for plug contact assignment Fast eight wire cables eight wire cables four wire cables pin RJ45 Ethernet in accordance in accordance Profinet with with ANSI TIA 568 A ANSI TIA 568 B 1 TX white green white orange yellow 2 TX green orange orange 3 RX white orange white green white 4 Not assigned blue blue i 5 Not assigned white blue white blue 6 RX orange green blue 7 Not assigned white brown white brown 8 Not assigned brown brown m Shield Cable shield Cable shield Cable shield Cable shield connection Four wire cables are approved for Speedwire assignments of the network plugs in accordance with ANSI TIA 568 A and ANSI TIA 568 B It is important that both cable ends are wired in accordance with the same industry standard Observe the Profinet specification when using four wire Profinet cables This also applies to pre assembled cables Technical Information Speedwire Tl en 1 1 21 3 Speedwire Communication in PV Systems SMA Solar Technology AG 3 4 2 5 Network Plug Connection Network plugs of the categories Cat5 Cat5e Cat6 and Cat6A can be used for Speedwire Cat category The category determines which data transfer rate is possible at maximum with the respective network plug
15. igned Not assigned 8 Not assigned Not assigned Shield connection Cable shield Cable shield Technical Information Speedwire Tl en 1 1 19 3 Speedwire Communication in PV Systems 3 4 2 3 Network Port LEDs SMA Solar Technology AG i Colors and functionality of the network port LEDs are not standardized Colors and functionalities of the network port LEDs are not consistently standardized The colors green for the link activity LED and yellow for the speed LED used by SMA Solar Technology AG as well as the respective functionalities might deviate when supplied by third party manufacturers Figure 7 Network port LEDs LED Status A link activity green off Explanation No network connection has been established flashing Network connection established Data is being sent or received on Network connection established B speed yellow off Network connection established 10 Mbit s mode the data transfer rate is up to 10 Mbit s on Network connection established 100 Mbit s mode the data transfer rate is up to 100 Mbit s 20 Speedwire Tlen 1 Technical Information SMA Solar Technology AG 3 Speedwire Communication in PV Systems 3 4 2 4 Terminal Assignment Color Schemes The terminal assignment of the network cables is made in accordance with the standards ANSI TIA 568 A or ANSI TIA 568 B If a Profinet cable such as SMA COMCAB is used the assignment is based on Profinet s color sch
16. inverter installation manual Observe the waiting time to allow the capacitors to discharge Risk of burns due to hot enclosure parts Some parts of the inverter enclosure can get hot during operation Touching these enclosure parts can result in burn injuries Do not touch any parts other than the lower enclosure lid of the inverter during operation NOTICE Damage to the inverter due to electrostatic discharge The internal components of the inverter can be irreparably damaged by electrostatic discharge Ground yourself before touching any inverter component Technical Information Speedwire Tl en 1 1 9 3 Speedwire Communication in PV Systems SMA Solar Technology AG 3 Speedwire Communication in PV Systems 3 1 Requirements for Using Speedwire You need the following components to be able to use Speedwire atleast one inverter that is equipped with one Speedwire interface see Section 2 2 Speedwire Products page 8 oneSpeedwire enabled communication product see Section 2 2 Speedwire Products page 8 one computer The network cabling of the PV system must be carried out in accordance with the requirements see Section 3 4 page 13 described in this document 3 2 Requirements for Qualified Network Components You can use standard network components for Speedwire However the following minimum requirements must be fulfilled Requirements LI Data transfer rate Fast Ethernet 1OBASET 10OBASET
17. ive communication product at www SMA Solar com 8 Speedwire Tl en 1 1 Technical Information SMA Solar Technology AG 2 Introduction 2 3 Skills of Qualified Persons The tasks described in this document must be performed by qualified persons only Qualified persons must have the following skills Training in the installation and commissioning of electrical devices and systems Knowledge of how to deal with the dangers and risks associated with installing and using electrical devices and systems Knowledge of how an inverter works and is operated Knowledge of all applicable standards and directives such as EN 50173 1 EN 50173 3 EN 60950 1 ISO IEC 11801 ANSI TIA 568 C 2 Knowledge of Ethernet network engineering Knowledge of and adherence to this document and all safety precautions 2 4 Safety Precautions For the connection of the network cables to the Speedwire interfaces of the inverter the inverter must be opened Observe all safety precautions in the installation manual of the respective inverter as well as the following safety precautions for working safely on the inverters A DANGER Danger to life due to electric shock when opening the inverter High voltages are present in the conductive components of the inverter Touching live components results in death or serious injury Prior to performing any work on the inverter always disconnect the inverter from all voltage sources on the AC and DC sides see
18. le will be protected from cable break short circuit of the wires and from damage to the cable sheath and cable shield When laying outside of cableways lay the network cables in a protective plastic tube e When laying outside of cableways in areas with heavy mechanical stress lay the network cables in a metal armored conduit In areas with light or medium mechanical stress it is sufficient to lay the cables in protective plastic tubes When laying in a 90 bend or across a building gap e g expansion joint the protective tube must be cut off Do not come below the minimum allowable bending radius It is imperative not to bend the network cables Refer to the manufacturer s datasheet for the allowable bending radius e Lay the network cables in metallic armored conduits or on metallic cableways in areas or parts of buildings that are accessible or in the vicinity of transport routes When storing or transporting the network cables close both cable ends with a protective cap Oxidation of individual wires or potential moisture and dirt collection on the network cables will be prevented Laying cables over sharp edges such as cutting edges or end edges of cable channels should be avoided by all means 4 3 Checking the Speedwire Cabling It is recommended to check the Speedwire cabling for correct installation prior to commissioning the PV system Each connection should be checked especially if the network cables and ne
19. les create a clearance as great as possible to other cables and observe the following minimum clearances Network cable to unshielded energy cable without separating strip at least 200 mm Network cable to unshielded energy cable with aluminum separating strip at least 100 mm Network cable to unshielded energy cable with steel separating strip at least 50 mm Network cable to shielded energy cable O mm Network cable to network cable O mm Keep parallel routing of network cables and other cables to a minimum When cables of different categories are crossed make a rectangular crossing e Always use suitable cable glands for the inverter or switch cabinet enclosure openings e When laying the network cables outdoors always lay them on metallically conductive cableways e Connect the joints of the cableways covering a large area and with good conductivity The connection must be of the same material as the cableways e Ground metallically conductive cableways 26 Speedwire Tlen 1 Technical Information SMA Solar Technology AG 4 Basics for Planning a PV System with Speedwire 4 2 3 Mechanical Protection of Network Cables NOTICE Network cables can only be mechanically stressed to a certain extent The network cables can be damaged when being twisted or bent or being mechanically stressed when applying pressure or being pulled e Observe the following mechanical safety measures when laying network cables The network cab
20. mation SMA Solar Technology AG 5 Commissioning and Operation of a PV System with Speedwire 5 Commissioning and Operation of a PV System with Speedwire When using routers or network switches with router function make sure that Speedwire uses addresses from the Multicast area 239 8 besides directly communicating with the individual IP nodes The Multicast address group 239 8 239 0 0 0 to 239 255 255 255 is defined by RFC 2365 as a locally managed address space with local and regional expansion or throughout the organization il Observe router configuration Make sure that the routers and network switches in your Speedwire network forward the Multicast telegrams telegrams with destination address 239 0 0 0 to 239 255 255 255 required for the Speedwire connection to all nodes of the Speedwire network for information on configuration of the router or network switch see the manufacturer s manual Checking the Speedwire Communication with Sunny Explorer Requirements LI The PV system may only consist of a maximum of 50 inverters LI The PV system must be in operation LI Automatic IP address allocation with DHCP must be activated in your computer network settings L1 Sunny Explorer from software version 1 06 must be installed on the computer LI Inverters with Speedwire Webconnect Piggy Back must be in feed in operation to be captured Procedure 1 Connect the computer to the router network port or network switch in the Speedwire net
21. nical Information Speedwire Tl en 1 1 7 2 Introduction SMA Solar Technology AG 2 2 Speedwire Products SMA Speedwire Interfaces There are different Speedwire interfaces for SMA inverters Speedwire integrated installed ex works depending on the inverter Inverter has one network port tree topology or star topology possible Inverter has two network ports line topology tree topology or star topology possible connection via plug amp play Speedwire Webconned data module available as a retrofit kit or is pre installed in the inverter has two network ports line topology tree topology or star topology possible connection via plug amp play Speedwire Webconnect Piggy Back available as retrofit kit has one network port tree topology or star topology possible connection via network cable Speedwire data module Sunny Island available as retrofit kit has one network port only star topology possible connection via plug amp play Supported SMA Speedwire Products Inverters All inverters with integrated or retrofitted Speedwire interface Information on whether an inverter has an integrated Speedwire interface or can be retrofitted with a Speedwire interface can be found on the product page of the respective inverter at www SMA Solar com Communication Products Devices and Software Information on whether a communication product supports Speedwire can be found on the product page of the respect
22. nt cable sheath and cable properties Imprint Cable properties SFTP 300 CAT 5E 26AWGX4P PATCH S FTP braided shield CAT5e performance ISO IEC11801 amp EN50173 verified AWG26 cable with four twisted wire pairs as patch cable Tested in accordance with standards ISO IEC11801 and EN50173 Patch cable only for short distances Cat5e SF UTP patch cable e Cable suitable for Fast Ethernet Cat5e Total braided shields and total foil shields for all SF UTP pairs e Patch cable only for short distances S FTP 4x2xAWG 24 1 CAT5e Total braided shields for all pairs and foil shields for the single S FTP pairs Installation cable for permanent link cable fixed e 4 double wires 16 Speedwire Tlen 1 1 Technical Information SMA Solar Technology AG 3 Speedwire Communication in PV Systems 3 4 1 6 Cabling Plan Speedwire based on pointto point connection from device to device Tapping single feeders and parallel use are not allowed Speedwire devices can be cabled in accordance with two principles Structured cabling for house and office installations Application neutral PV system cabling for industrial locations Direct Connection without Interface with Two Network Plugs max 100 m za HE Node Figure 3 Direct connection principle Plug A direct connection is favorable if the network cable is being laid directly and adjusted to the end to end link length Connection with Interfaces
23. on User Datagram Protocol UDP Wireless network protocol belonging to the transport layer of the internet protocol family UDP routes the data transmitted via a network to the correct application Webconnect Function A function developed by SMA Solar Technology AG which enables data transmission between the Internet portal Sunny Portal and inverters with Speedwire Webconnect interface without an additional communication device This data transmission takes place via a router with Internet access 34 Speedwire Tlen 1 1 Technical Information SMA Solar Technology www SMA Solar com
24. or fixed cables Installation cable Profinet cable Network cable fixed Permanent link Network cables with eight wires that are arranged in four pairs with two wires each are approved for Speedwire The respective wire pair is twisted Cables that have only four wires minimum requirement and are either arranged in two twisted wire pairs or in a star quad four wires twisted at once are also approved Besides pure copper cables there are copper clad cables that have the same transmission properties Copper clad cables are labeled with CCA copper clad aluminum The internationally common coding designation AWGxx y is used for cable cross sections The xx in AWGxx y stands for the respective conductor cross section and the y for the number of single wires per insulated conductor Examples for the Y Values Fixed installation cable AWGxx 1 1 single wire Flexible cable stranded wire e g patch cable AWGxx 7 7 single wires per insulated conductor Flexible cable stranded wire e g patch cable AWGxx 19 19 single wires per insulated conductor Technical Information Speedwire Tl en 1 1 13 3 Speedwire Communication in PV Systems SMA Solar Technology AG The following conductor cross sections xx are typically used for Ethernet and Speedwire cabling Solid conductor AWGxx 1 AWG26 to AWG22 AWG26 to AWG22 corresponds to a conductor cross section of 0 13 mm to 0 32 mm Flexible cable stranded wire e g patch
25. ous 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 a hazardous situation which if not avoided can result in minor or moderate injury NOTICE Indicates a situation which if not avoided can result in property damage Information that is important for a specific topic or goal but is not safety relevant Indicates a requirement for meeting a specific goal Desired result El o A problem that might occur Nomenclature Complete designation Designation in this document SMA Speedwire Fieldbus Speedwire SMA Speedwire Webconnect Piggy Back Speedwire Webconnect Piggy Back SMA Speedwire Webconnect data module Speedwire Webconnect data module SMA Speedwire data module Sunny Island Speedwire data module SI SMA Webconnect function Webconnect function SMA inverter Inverter SMA Cluster Controller Cluster Controller Technical Information Speedwire Tl en 1 1 5 1 Information on this Document Abbreviations Abbreviation Designation SMA Solar Technology AG Explanation AC Alternating Current AWG American Wire Gauge US American coding system for wire cross section DC Direct Current DHCP Dynamic Host Configuration Protocol Protocol for the dynamic assignment of IP configurations ESS Electronic Solar Switch The Electroni
26. r generation This includes the complete collection of components needed for the acquisition and utilization of PV energy In the case of grid connected PV systems this includes the PV array as well as the inverter and other system components RJ45 Standardized plug in telecommunications and network engineering also known as Western Bell plug Router Network device that connects several networks with each other and routes data between the networks e g between a home network and the Internet SMA Data2 A communication product for PV systems developed and optimized by SMA Solar Technology AG Store and Forward Technology The store and forward technology is a type of data transmission where information is sent via an intermediate station e g a router which stores the data and then forwards the data to the final destination or another intermediate station at a later point in time Transmission Control Protocol TCP Transmission protocol in computer networks which regulates the packet switched data exchange between the individual nodes Technical Information Speedwire Tl en 1 1 33 7 Glossary SMA Solar Technology AG Twisted Pair Cable TP Cable types in telecommunications and network engineering where the wires are twisted in pairs with each other By drilling the wire pairs the EMC interference couplings in the individual wire loops have an effect in the opposite direction and cancel each other through difference determinati
27. sical arrangement within the PV system determine which topology is the ideal selection The maximum line lengths allowed between the Speedwire devices may not be exceeded see Section 3 3 2 Maximum Line Lengths End to End Links page 11 If the line lengths are exceeded a media converter must be used for optical fibers see Section 4 1 3 Tree Topology page 25 The Speedwire network can be set up with the following optional topologies Line topology see Section 4 1 1 page 23 Star topology see Section 4 1 2 page 24 Tree topology see Section 4 1 3 page 25 4 1 1 Line Topology Requirement LI The inverters must be equipped with Speedwire interfaces with two network plugs each One network port is sufficient for the end user of a line topology SMA Cluster Sunny Boy Sunny Boy Controller Sunny Portal Router Internet MEE Speedwire network LAN WAN Figure 8 Line topology with Cluster Controller example Technical Information Speedwire Tl en 1 1 23 4 Basics for Planning a PV System with Speedwire SMA Solar Technology AG 4 1 2 Star Topology Sunny Boy Sunny Boy Sunny Portal Router Internet Computer with Sunny Explorer Speedwire network LAN WAN Figure 9 Star topology example 24 Speedwire Tlen 1 Technical Information SMA Solar Technology AG 4 Basics for Planning a PV System with Speed
28. twork plugs were self assembled Step 1 Visual Inspection Were qualified network components used see Section 3 2 page 10 Were the correct cables used see Section 3 4 1 page 13 e Was the maximum total length observed for the individual end to end links see Section 3 3 2 page 11 Was the maximum number of interfaces not exceeded in the respective end to end link Were the cables not bent and was the bending radius observed see manvfacturer s data sheet e Were sharp edges removed when laying the cables e Were the clearances to unshielded energy cables observed see Section 4 2 2 page 26 Technical Information Speedwire Tl en 1 1 27 4 Basics for Planning a PV System with Speedwire SMA Solar Technology AG Step 2 Simple Cabling Inspection Test the cable shield and all wires individually with a continuity tester for electrical connection An Ethernet line tester can be used instead of the continuity tester Were all insulated conductor ends positioned correctly e g test with wiremap LAN tester Using a continuity tester make sure that there are no short circuits between the wires and the cable shield An Ethernet line tester can be used instead of the continuity tester Were all cable shields properly positioned at the plugs see Section 3 4 2 2 page 19 Was the topology observed see Section 4 1 page 23 Step 3 Extensive Cabling Inspection The extensive cabling inspection is especially recommen
29. unshielded single pairs S UTP Total braided shields with unshielded single pairs SF FTP i Total braided shields and total shield foil with shielded single pairs S FTP S STP Total braided shields with foil shielded single pairs The most common cable types on the market are SF UTP and S FTP SF UTP S FTP A B C D E A B C Figure 2 Cable shielding in accordance with ISO IEC11801 oO m Item Designation A Outer sheath B Braided shield C Foil shield D Inner sheath E Copper wire Technical Information Speedwire Tl en 1 1 15 3 Speedwire Communication in PV Systems SMA Solar Technology AG 3 4 1 4 Grounding For Speedwire devices the cable shield is usually grounded via the respective network port The cable shield must always be positioned at the network plug No additional grounding measures are necessary Only for Speedwire Webconnect Piggy Back does the grounding of the cable shield take place via the connection to the shield clamp in the inverter see Speedwire Webconnect Piggy Back installation manual 3 4 1 5 Cable Sheath The cable laying site determines the outer sheath cable material Network cables are avoilable for the following areas Indoor routing e Outdoor routing Underground installation Network cables are available for each area with the corresponding properties The most important cable properties are printed on the cable sheath for identifying the network cable Examples impri
30. us system for a future proof PV system monitoring that also enables you to reliably control and regulate the PV system using the digital interface By using Speedwire the normative and legal requirements can be complied with both domestically and internationally Is Speedwire the same as Ethernet No Speedwire is an Ethernet based system with a communication protocol SMA Data2 optimized for PV systems Are Speedwire and Webconnect the same thing No The Webconnect function enables direct data transmission between the Internet portal Sunny Portal and inverters with Webconnect interface without any additional communication device This data transmission takes place via a router with Internet access Speedwire enables data transmission within a local PV network with e g inverters and Cluster Controller or Sunny Explorer Do have to retrofit my router or my network switches with Speedwire No Speedwire supports most standard network components see Section 3 2 Requirements for Qualified Network Components page 10 and is thereby compatible with network devices already present Technical Information Speedwire Tl en 1 1 31 7 Glossary SMA Solar Technology AG 7 Glossary Auto IP Standard procedure in network engineering by which the Speedwire devices receive valid IP addresses which can be communicated with Auto Negotiation Configuration protocol in Ethernet and Speedwire networks Before the actual data transmission the f
31. wire 4 1 3 Tree Topology Sunny Portal Computer SMA Cluster Controller Router Router Sunny Boy Sunny Boy Sunny Boy Sunny Boy Speedwire network LAN WAN Figure 10 Tree topology with Cluster Controller example Technical Information Speedwire Tl en 1 1 25 4 Basics for Planning a PV System with Speedwire SMA Solar Technology AG 4 2 Information on Laying the Network Cables 4 2 1 General Information To ensure the optimal operation of a Speedwire PV system the following normative guidelines must be observed when laying network cables among other things e EN 50174 2 2000 Information technology Installation of communication cabling part 2 Installation planning and practices in buildings e EN 50174 3 2003 Information technology Installation of communication cabling part 3 Installation planning and practices outside of buildings i Observe national standards and directives In addition to the international standards mentioned here there can be additional national safety and laying directives for energy and data cables in your country When laying network cables observe the safety and laying directives for energy and data cables applicable in your country in addition to the international standards 4 2 2 Information on Interference Suppression e Observe the network cable requirements see Section 3 4 1 page 13 When laying network cab
32. work 2 Start Sunny Explorer 3 For PV systems not yet set up in Sunny Explorer create a new Speedwire PV system in Sunny Explorer see Sunny Explorer help 4 Open the PV system already created in Sunny Explorer see Sunny Explorer help 5 Test whether all inverters have been detected Refer to troubleshooting see Sunny Explorer help if not all of the inverters were captured Technical Information Speedwire Tl en 1 1 29 5 Commissioning and Operation of a PV System with Speedwire SMA Solar Technology AG Checking the Speedwire Communication with a Communication Device e g Cluster Controller Requirements LI The PV system with communication device must be in operation LI The computer and the communication device must be located in the same local network LI Inverters with Speedwire Webconnect Piggy Back must be in feed in operation to be captured Procedure 1 Connect the computer to a free network port within the local network 2 Call up the communication device user interface via the Internet browser see communication device user manual 30 Speedwire Tlen 1 1 Technical Information SMA Solar Technology AG 6 FAQ 6 FAQ Why is it smart to use Speedwire Due to performance reasons it is not possible to comply with the current standards and directives for grid integration of PV energy in all cases using the standard wired RS485 technology As opposed to this Speedwire is a means to provide a continuous high speed b
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