SMA Bluetooth® Wireless Technology in practice - Gastech
Contents
1. with SMA Bluetooth Piggy Back WB 1100 WB 1100 IT WB 1100E WB 1100LV WB 1100LV IT WB 1200 WB 1200 IT WB 1700 WB 1700E WB 1700 IT WB 2500 WB 2500 IT WB 2800i WB 3000 WB 3000 IT SB 3800 with SMA Bluetooth Piggy Back Photovoltaic inverters with SMA Bluetooth Piggy Back SB 3300 SB 3300 IT SB 3800 SB 3800 IT Wind power inverters with SMA Bluetooth Piggy Back WB 3300 WB 3300 IT WB 3800 WB 3800 IT SMA Solar Technology AG 7 16 Technical Information SMA Bluetooth Tested devices Transmitting power depending Untested devices with SB Sunny Boy on the enclosure side comparable transmitting power SMC Sunny Mini Central WB Windy Boy SMC 5000 with Photovoltaic inverters d with SMA Bluetooth Piggy Back SB 4200TL HC SB 4200TL HCIIT SB 5000TL HC SB 5000TL HCIT SMA Solar Technology AG 8 16 Technical Information SMA Bluetooth Tested devices SB Sunny Boy SMC Sunny Mini Central SMA Bluetooth Piggy Back e SMC 11000TL with Transmitting power depending on the enclosure side Untested devices with comparable transmitting power SB Sunny Boy SMC Sunny Mini Central WB Windy Boy Photovoltaic inverters with SMA Bluetooth Piggy Back SMC 4600A SMC 5000 SMC 5000A SMC 5000AIT SMC 6000 SMC 6000A SMC 6000A IT SMC 6000A KR SMC 7000HV SMC 7000HV4T SMC 7OOOHV 12. power specification The Power Reducer Box can be used only with wired PV plants feed in management POWER grid operator ower radio ripple control REDUCER BOX distribution grid receiver feed in management POWER grid operator ower radio ripple control REDUCER BOX distribution grid receiver Que frg TA RR SMA Solar Technology AG Ethernet Sunny Central Sunny Mini Central m i 14 16 Technical Information Safety of SMA Bluetooth 4 Safety of SMA Bluetooth SMA Solar Technology AG offers inverters of different power classes with SMA Bluetooth Measurement event and counter information can be retrieved and parameters changed wirelessly via SMA communication products SMA Solar Technology AG provides a comprehensive security concept that protects the Bluetooth devices of your PV plant from unauthorized access Plant password securing all Bluetooth devices of your PV plant via a system password transmitted encrypted for each user group user installer SMA Grid Guard controlled access to safety relevant parameters via SMA Grid Guard Plant password The inverters with integrated Bluetooth or an SMA Bluetooth Piggy Back are delivered ex works with preset plant passwords These are the same for all SMA Bluetooth Piggy Backs and all inverters with Bluetooth To protect the PV plant from unauthorized access you should change the default plant passwor
3. that have not been tested but are equipped with an enclosure corresponding to one of those shown in the table For devices that have not been tested with SMA Bluetooth Piggy Back Plus you can assume a similar or better transmitting power than the transmitting power of the SMC 6000TL with SMA Bluetooth Piggy Back Plus When designing your plant take the following factors into account The range depends on various influencing factors see p 3 In order to determine the maximum distance between two Bluetooth nodes the transmitting power of both of them must be taken into account The transmitting power of the Bluetooth node with the lower transmitting power is decisive Depending on the enclosure side the transmitting power of the Bluetooth node may vary It is therefore important to consider the orientation of a Bluetooth node towards others SMA Solar Technology AG 4 16 Technical Information Legend DDA optimum transmitting power DDD good transmitting power moderate transmitting power low transmitting power SMA Bluetooth Devices with moderate and low transmitting power SMA Solar Technology AG recommends equipping devices with mainly moderate or low transmitting power with an SMA Bluetooth Repeater an SMA Bluetooth Repeater Outdoor or an SMA Bluetooth Piggy Back Plus Inverters with integrated Bluetooth Tested devices SB Sunny Boy SMC Sunny Mini Central e SB 5000
4. 0 16 Technical Information Communication devices SMA Bluetooth Tested device Sunny WebBox with Bluetooth Transmitting power depending on the enclosure side Sunny Beam with Bluetooth SMA Bluetooth Repeater SMA Solar Technology AG 11 16 Technical Information SMA Bluetooth 2 2 Number of Nodes Up to 50 devices with the same NetID can participate in an SMA Bluetooth network These devices include inverters and SMA Bluetooth Repeaters In case you want to link more than 50 devices you have to divide your PV plant into several Bluetooth networks by assigning them different NetlDs If your Bluetooth PV plant consists of 90 devices for example you can assign the NetID 3 for 45 devices and the NetID 4 for the remaining 45 devices In this case divide the PV plant into Bluetooth networks with an approximately equal number of devices example PV plant with 90 devices should not be divided into 60 and 30 devices but into 45 and 45 devices The fewer devices there are within a NetID the faster the network structure and the data transmission are When the Sunny Explorer is used the number of nodes depends on the number of masters see section Sunny Explorer and number of slaves page 13 2 3 Masters and Slaves Masters and slaves are terms used in network technology In a network a master is a device that for example requests other devices slaves to receive or send data In a Blueto
5. 1 SMC 7000HV 1 1 IT SMC 6000TL SMC 6000TLIT SMC 7OOOTL SMC 70OOTLIT SMC 8000TL SMC 8000TLIT SMC 8000TLKR SMC 9000T1 10 SMC 9OOOTL 10 IT SMC 10000TL 10 SMC 10000TL 10 IT SMC 11000TL 10 SMC 11 000TL 10 IT SMC 9000TLRP 10 SMC 10000TLRP 10 SMC 11000TLRP 10 Wind power inverters with SMA Bluetooth Piggy Back WB 5000A WB 5000A4T WB 6000A WB 6000A IT SMA Solar Technology AG 9 16 Technical Information Inverters with SMA Bluetooth Piggy Back Plus Tested devices SB Sunny Boy SMC Sunny Mini Central SMA Bluetooth Piggy Back Plus e SMC 6000TL with Transmitting power depending on the enclosure side SMA Bluetooth Untested devices with comparable transmitting power SB Sunny Boy SMC Sunny Mini Central WB Windy Boy Photovoltaic inverters with SMA Bluetooth Piggy Back Plus SMC 4600A SMC 5000 SMC 5000A SMC 5000AIT SMC 6000 SMC 6000A SMC 6000A IT SMC 6000A KR SMC 7000HV SMC 7000HV4T SMC 7OOOHV 1 1 SMC 7000HV 1 1 IT SMC 6000TL SMC 6000TLIT SMC 7000TL SMC 7ZOOOTLIT SMC 8000TL SMC 8000TLIT SMC 8000TLKR SMC 9000T1 10 SMC 9000TL 10 IT SMC 10000TL 10 SMC 10000TL 10 IT SMC 11000TL 10 SMC 11 000TL 10 IT SMC 9000TLRP 10 SMC 10000TLRP 10 SMC 11000TLRP 10 Wind power inverters with SMA Bluetooth Piggy Back Plus WB 5000A WB 5000AT WB 6000A WB 6000A IT SMA Solar Technology AG 1
6. MA Bluetooth have the following storage capacity Total yield E total in 5 minute averages for 63 days Daily yield E day as end of day values for 30 years 250 Events for the user group User 250 Events for the user group Installer Inverters with retrofitted SMA Bluetooth SMA Bluetooth Piggy Back and SMA Bluetooth Piggy Back Plus The value E day can be saved by inverters with retrofitted SMA Bluetooth as of the SMA Bluetooth Piggy Back firmware version 2 00 01 R or as of the SMA Bluetooth Piggy Back Plus firmware version 2 00 03 R Otherwise these inverters have the same storage capacity as inverters with an integrated SMA Bluetooth However the SMA Bluetooth Piggy Back and the SMA Bluetooth Piggy Back Plus can save the data only if a master is connected to the PV plant at least once a day thus transmitting the time The reason is that otherwise the SMA Bluetooth Piggy Back and the SMA Bluetooth Piggy Back Plus cannot assign the data any time and date and therefore cannot save it Note that the master can connect to the inverter and an SMA Bluetooth Piggy Back or an SMA Bluetooth Piggy Back Plus only when the inverter is in feed in operation SMA Solar Technology AG 16 16
7. TL 20 Transmitting power depending on the enclosure side Untested devices with comparable transmitting power SB Sunny Boy SMC Sunny Mini Central WB Windy Boy Photovoltaic inverters SB 3000TL 20 SB 4000TL 20 Wind power inverters WB 3600TL 20 WB SOOOTL 20 SMA Solar Technology AG 5 16 Technical Information SMA Bluetooth Tested devices SB Sunny Boy SMC Sunny Mini Central e SB 3000HF 30 Transmitting power depending on the enclosure side Untested devices with comparable transmitting power SB Sunny Boy SMC Sunny Mini Central WB Windy Boy Photovoltaic inverters SB 2000HF 30 SB 2500HF 30 Wind power inverters WB 2000 HF WB 2500 HF WB 3000 HF SMA Solar Technology AG 6 16 Technical Information Inverters with SMA Bluetooth Piggy Back Tested devices SB Sunny Boy SMC Sunny Mini Central SB 1700 with SMA Bluetooth Piggy Back Transmitting power depending on the enclosure side SMA Bluetooth Untested devices with comparable transmitting power SB Sunny Boy SMC Sunny Mini Central WB Windy Boy Photovoltaic inverters with SMA Bluetooth Piggy Back SB 1100 SB 1100E SB 1100LV SB 11004IT SB 1200 SB 12001T SB 1600TL 10 SB 1700 SB 1700E SB 1700 IT SB 2100TL SB 2500 SB 2500 IT SB 2500 KR SB 2800i SB 3000 SB 3000 IT SB 3000 KR Wind power inverters
8. Technical Information SMA Bluetooth SMA Bluetooth Wireless Technology in Practice Contents This document summarizes the main features of SMA Bluetooth Wireless Technology and provides answers to questions from practice Further documents on SMA Bluetooth The technical description SMA Bluetooth Wireless Technology is available at www SMA de en in the download area of Bluetooth products BT_Quick UEN110711 Version 1 1 1 16 Technical Information RS485 and Bluetooth Compared RS485 and Bluetooth Compared SMA Solar Technology AG provides wired and wireless communication for PV plants What type is suitable for your PV plant depends on your preference the size of your PV plant and the distance between the devices The following table provides a brief overview of the differences between wired RS485 and wireless Bluetooth communication from SMA Solar Technology AG Wired RS485 Wireless Bluetooth Typical application Medium and large PV plants Especially small and medium PV plants Advantages High speed and reliability Reduced costs and effort Number of nodes PV plant Up to 50 per RS485 bus Up to 50 per Bluetooth network monitoring and inverters inverter and SMA Bluetooth Repeater Number of data retrieval 1 device per RS485 bus Up to four devices per Bluetooth devices network depending on the ber of nod for example Sunny Beam Sunny Pum ENa Ngak WebBox Range 1 200 m per RS485 Bus U
9. ds for the user groups Installer and User or set the NetID of all inverters to O Bluetooth switched off when no wireless plant communication is to be used However SMA Solar Technology AG recommends changing the plant passwords since the preset NetlD 1 and higher facilitates access for a service technician You can change the plant passwords by using a computer with Bluetooth and the Sunny Explorer software or by means of a Sunny WebBox with Bluetooth How to change the plant passwords is described in the user manual of the Sunny Explorer and or the user manual of the Sunny WebBox with Bluetooth You can obtain the Sunny Explorer for free in the download section of www SMA de en Inform the user of the changed user password SMA Grid Guard SMA Grid Guard is a security concept for country specific settings in the inverter determining the network behavior within a power distribution grid These settings SMA Grid Guard parameters are pre installed in the devices and can only be configured with the SMA Grid Guard password In order to change SMA Grid Guard parameters you must be logged in as an installer and you will also need your personal SMA Grid Guard password which you can obtain from SMA Solar Technology AG Contact the SMA Serviceline SMA Solar Technology AG 15 16 Technical Information Storage Capacity of the Inverters 5 Storage Capacity of the Inverters Inverters with integrated SMA Bluetooth Inverters with integrated S
10. he receiver or not to reach it at all Depending on the local conditions reflections can lead to the receiving conditions appearing to be better or worse than assumed when purely considering the damping effects Transmitting power The transmitting power of the Bluetooth node with the lower transmission power limits the possible distance between two Bluetooth nodes If for example a node has a radio range of 100 m and the other nodes a radio range of 10 m the nodes may not be more than 10 m apart Receiver sensitivity The receiver sensitivity is a measure of the minimum strength the radio signals must have in order that they can be received without errors The more sensitive the device is set the weaker the radio signals can be which the device still can perfectly receive The receiver sensitivity depends on the hardware and software of a device SMA Solar Technology AG 3 16 Technical Information SMA Bluetooth The following table shows the transmitting power of SMA devices with Bluetooth in free field conditions in case of direct visual contact The illustrated power applies to both transmitting and receiving of Bluetooth radio signals The table is to serve as a reference when designing your PV plant SMA Solar Technology AG has tested the transmitting power of all the devices listed in the table The transmitting power of devices not listed in the table has not been tested You can assume a comparable transmitting power for devices
11. o 50 devices slaves If you want to use other communication products besides Sunny Explorer your PV plant should comprise fewer slaves The following table lists the number of possible slaves Number of masters Possible number of slaves 1 Sunny Explorer up to 50 1 Sunny Explorer and 1 other communication product up to 25 1 Sunny Explorer and 2 other communication products up to 12 1 Sunny Explorer and 3 other communication products 3 to SMA Solar Technology AG 13 16 Technical Information 3 Feed in and Grid Management Feed in and Grid Management Feeding in and grid management means that in the event of a grid overload the distribution grid operator can remotely limit the feed in power of the PV plant The PV plant must be equipped with a system that allows the distribution grid operator to limit the power for the sake of safety Information on regulations for feeding in and grid management in your country can be obtained from your distribution grid operator For PV plants with planned grid management SMA Solar Technology AG recommends wired communication Using wired communication ensures that the distribution grid operator has access to the PV plant at all times The following figure shows the solution from SMA Solar Technology AG for PV plants that must contribute to feed in management The Power Reducer Box allows the distribution grid operator to implement active power limitation or reactive
12. oth network from SMA Solar Technology AG the following products are masters and slaves Role Products Characteristics Master Communication products e g Initiates the setup of the Bluetooth network Sunny WebBox with Bluetooth Sunny Beam with Bluetooth Requeste oala ta to sl Sunny Explorer software for Sends data to slaves computer Slave Inverter Implements the requests and inputs of SMA Bluetooth Repeater the master SMA Solar Technology AG 12 16 Technical Information SMA Bluetooth 2 4 Number of Masters in the Bluetooth Network A maximum of 4 masters can participate in a Bluetooth network at the same time However the number of masters depends on the number of slaves The root node A is the slave which the master directly connects DA to the Bluetooth network and initiates the setup of the complete Bluetooth network Two masters can connect with this slave Every other inverter can D only accept the connection of one master In order to participate simultaneously with the maximum number of 4 masters in a Bluetooth network at least 3 slaves are required Number of slaves Possible number of masters Inverter or SMA Bluetooth Repeater e g Sunny Beam with Bluetooth Sunny Explorer 1 2 2 3 3 4 gt 3 4 For PV plants with Sunny Explorer note the following section Sunny Explorer and number of slaves With Sunny Explorer you can manage up t
13. p to 100 m in the open air between individual devices Possibility for feeding in and Power Reducer Box from SMA None grid management Solar Technology AG see section 3 Feed in and Grid Management page 14 SMA Solar Technology AG 2 16 Technical Information SMA Bluetooth 2 SMA Bluetooth 2 1 Range SMA Bluetooth has a range of up to 100 m in the open air with direct visual contact The SMA Bluetooth Piggy Back used for retrofitting SMA inverters with Bluetooth achieves a radio range of up to 50 m outdoors with direct visual contact because of the inverter enclosure The range depends on various influencing factors which are partly manipulable The following factors can influence the range Damping obstacles Since the devices do not often stand in direct visual range of each other the radio signals must penetrate ceilings walls and doors for example As a result of these obstacles the radio signals are weakened to various extents damped To what extent an obstacle damps the radio signals depends on the thickness and material of the obstacle Changing conditions Changing conditions are changes that can occur during operation of the Bluetooth network such as occasionally parked vehicles or temporarily closed gates Reflections Radio waves that hit obstacles and are deflected from there in a different direction are called reflections They cause radio signals to take multiple paths to reach t
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