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6 communication, 1 interface for rs485 communication, 2 setting the bluetooth netid – SMA SB 2500TL-21 Installation User Manual

Page 50: Communication, Interface for rs485 communication, Setting the bluetooth

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Electrical Connection

SMA Solar Technology AG

50

SB25-30TLST-21-IA-en-13

Installation Manual

6.6 Communication

6.6.1 Interface for RS485 Communication

If you have ordered an inverter with an interface for wireline communication, the inverter will be
delivered with the interface ready installed.
You can also subsequently order an interface for wireline communication (see Section 14 "Accessories"
(page 91)).
You will find a detailed illustration of the wiring principle and instructions for conversion in
the communication interface retrofit kit.

6.6.2 Setting the Bluetooth NetID

Communication with a communication product via Bluetooth is activated by default. Networking with
other inverters via Bluetooth is deactivated by default.
The following configuration settings are possible via a rotary switch (switch C):

In order to restrict communication via Bluetooth between the inverters of your PV plant and those of
neighbouring systems, you can assign an individual NetID to the inverters of your PV plant (switch
position 2 to F). However, this is only necessary if neighbouring plants are situated within a radius of
500 m.
For all inverters in your PV plant to be detected by your communication product, they must all have
the same NetID.

1. Disconnect the inverter and open it (see Section 8.2 "Disconnecting the Inverter from Voltage

Sources" (page 57)).

2. Set the arrow on the rotary switch (C) to the

required position with a screwdriver. Use a 2.5 mm
screwdriver for this purpose.

3. Close the inverter (see Section 8.3 "Closing the

Inverter" (page 60)).

Switch position (NetID) Setting
0

Bluetooth communication is deactivated.

1

Communication with a communication product via Bluetooth is activated
and networking with other inverters is deactivated. (default setting)

2 to F

Networking via Bluetooth with other inverters is activated.

Activation of settings
The Bluetooth settings will only be applied once the inverter has been commissioned.

E

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