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3.11.8 Overvoltage surge arrester monitoring (-SX/SX2 models only)
The inverter monitors the status of the overvoltage surge arresters (21) (25) and generates a warning in
the event of a fault (viewable via monitoring system, web user interface or ABB Installer for Solar Inverters
APP).
3.11.9 Data transmission and control
Embedded multi communication interfaces (WLAN, Ethernet, RS485) combined with a Sunspec compliant
Modbus protocol (RTU/TCP) allow the inverter to be easily integrated with any third party monitoring and
control systems that support the same Sunspec standard.
NOTE – D The Modbus RTU/TCP register map is the same for all communication interfaces
(Ethernet, RS-485 and Wireless communication) of the inverter.
NOTE – D Please contact the ABB technical support or get access to Sunspec alliance website
for further information on Modbus Sunspec products.
3.12 Communication interfaces
The integrated ethernet and wireless board allows the local or remote connection to the inverter.
The inverter provide the following integrated communication interfaces:
• Wireless channel (IEEE 802.11 b/g/n@2.4GHz)
The use of wireless channel is recommended to access to the integrated Web User Interface by using any
WLAN standard device (PC, tablet. smartphone) for commissioning and setting parameters. Additionally
a second radio channel is available and can be used for connection to a wireless router.
• 2x Ethernet ports (44) (45) (10/100BaseTx - RJ45 plugs)
The ports are configured by default for enabling daisy chain connection of the inverters over the Ethernet
bus.
In order to improve the reliability of the communication with the inverters it is also allowed to create
ring shape layout by using this Ethernet bus.
• 1x RS485 ports (43) (terminal block)
The port enables daisy chain connection of the inverters over the serial line (slave mode). The port can
either be used for connecting supported accessories (like weather station, meter...): in this case data
from accessories will be logged and transferred to the cloud by inverter itself (master mode).
3.12.1 Ethernet bus connection
By default the two Ethernet ports (44) (45) of the inverters are already configured for enabling
communication over daisy chain layout.
Once the inverter is physically connected does not need specific settings: after the first turning on, the
inverter automatically got all needed network parameters with or without the presence of a DHCP server.
If an internet connection is available on site, the inverters will be automatically configured to transmit
telemetry data to Aurora Vision Cloud without the need of installing any additional device (logging
capability are already integrated into the inverter by default).
NOTE – D Aurora Vision Plant Management platform is the ABB cloud solution allowing customer
to remotely monitor and manage its own solar plants. Please refer to http://new.abb.com/
power-converters-inverters/solar or contact ABB technical support for further information on
how getting an Aurora Vision account.
With the inverters connected over Ethernet daisy chain and with an available internet connection it will be
always possible, via Aurora Vision Cloud, to upgrade remotely the firmware of the inverters.
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