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SMA Webconnect
The inverter is equipped with a Webconnect function as standard. The Webconnect function
enables direct data transmission between the inverters of a small-scale system and the Internet
portal SunnyPortal without any additional communication device and for a maximum of 4 inverters
per SunnyPortal system. In large-scale PV power plants with more than 4 inverters, there is the
option of establishing data transmission between the inverters and the SunnyPortal web-based
monitoring platform via the SMAClusterController or to distribute the inverters over several plants
in the SunnyPortal. If there is an existing WLAN or Ethernet connection, you can directly access
your Sunny Portal system via the web browser on the computer, tablet PC or smartphone.
WLAN
The inverter is equipped with a WLAN interface as standard. The inverter is delivered with the
WLAN interface activated as standard. If you do not want to use WLAN, you can deactivate the
WLAN interface.
In addition, the inverter has a WPS (WiFi Protected Setup) function. The WPS function is for
automatically connecting the inverter to a device in the same network as the inverter (e.g. router,
computer, tablet PC or smartphone).
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 inverter 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 devices is designed for industrial use and has the
following tasks:
Remote query of measured values
Remote setting of operating parameters
Setpoint specifications for system control
Parallel Operation of the DC Inputs A and B
The DC inputs A and B of the inverter can be operated in parallel and up to three strings can be
connected to it in parallel. As a result, as opposed to normal operation, up to three strings can be
connected directly to inverters with two DC inputs and up to four strings to inverters with three DC
inputs. The inverter automatically detects the parallel operation of the DC inputs A and B.
Module slots
The inverter is standard-equipped with two module slots. The module slots are located on the
communication assembly and allow additional modules to be connected (e.g. SMA Sensor
Module). The modules are available as accessories. The installation of two identical modules is not
permissible.
3 Product Description
SMA Solar Technology America LLC
User Manual 15SB30-77-1SP-US-40-BA-en-11
15


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