SMA STP 50-40 Operating Manual page 22

4 Product Overview
SMA Speedwire
The product is equipped with SMA Speedwire as standard. SMA Speedwire is a type of
communication based on the Ethernet standard. SMA Speedwire is designed for a data transfer
rate of 100 Mbps and enables optimum communication between Speedwire devices within
systems.
The products supports the encrypted system communication with SMA Speedwire Encrypted
Communication. In order to be able to use the Speedwire encryption in the system, all Speedwire
devices, except for the SMA Energy Meter, must support the function SMA Speedwire Encrypted
Communication.
SMA Webconnect
The inverter is equipped with a Webconnect function as standard. The Webconnect function
enables direct data transmission between the inverter and Sunny Portal without any additional
communication device and for a maximum of 4 inverters per visualized system. In PV systems with
more than 4 inverters, there is the option of establishing data transmission between the inverters
and Sunny Portal via the data logger (e.g., SMA Data Manager) or distributing the inverters over
several systems. You can directly access your visualized system via the web browser on your end
device.
WLAN connection to SMA 360° app
There is a QR code on the product by default. If the product is equipped with a Wi-Fi interface, you
can access the product via Wi-Fi by scanning the QR code on the product using the SMA 360° or
SMA Energy app. This automatically connects to the user interface.
Wi-Fi
Depending on availability, the product is or is not equipped with a Wi-Fi interface. If the Wi-Fi
interface is present, the Wi-Fi interface is enabled by default at delivery. If you do not want to use
WLAN, you can deactivate the WLAN interface.
If the Wi-Fi interface is present, the product also has a WPS function. The WPS function is for
automatically connecting the product to a network (e.g. via router) and establish a direct
connection between the product and a smart end device.
Expanding the radio range in the WLAN network
In order to expand the radio range of the inverter in the WLAN network, you can install the
Antenna Extension Kit accessory set in the inverter.
Modbus
The product is equipped with a Modbus interface. The Modbus interface is deactivated by default
and must be configured as needed.
The Modbus interface of the supported SMA products is designed for industrial use – via SCADA
systems, for example – and has the following tasks:
• Remote query of measured values
• Remote setting of operating parameters
• Setpoint specifications for system control
22 STP50-4x-BE-en-23
SMA Solar Technology AG
Operating manual