Ethernet interface
Monitoring can occur directly on the device using the integrated Ethernet interface. A local web server is installed in the
device for this purpose. This can also be used to request measured values remotely.
For monitoring a system comprising several inverters, we recommend you use an external data logging and monitoring
system.
Ethernet interface
The device features two switched Ethernet ports to enable the user to, for example, connect several devices in series if
the user prefers a linear topology.
RS485 interface
Use this monitoring option if you cannot check the functioning of the system on-site on a regular basis, e.g. if your place
of residence is located a great distance from the system. To connect the RS485 interface, contact your authorised electri-
cian.
For monitoring your PV system using the RS485 interface, KACO new energy GmbH offers monitoring devices.
The device has two RS485 interfaces. An RS485 interface is provided for communication with a string combiner. This can
be controlled using the Modbus RTU protocol. Data loggers that cannot be connected via Ethernet can be connected to
the additional RS485 interface. The Sunspec and KACO protocol are supported in this case.
USB port
The device's USB connection is a type A socket. It is located on the communication circuit board. The USB connection is
specified to draw 5V/500mA of current.
Use the USB interface to read out stored operating data, load firmware updates or device configurations using a FAT32-
formatted USB stick (max. 4GB).
It is possible to establish a connection to the webserver integrated into the device by connecting a USB-WiFi stick. In addi-
tion to commissioning, service information and firmware updates, more extensive configurations are also possible via the
web interface.
"Inverter Off" input / DRM 0 for Australia
In addition to the safety functions, the internal interface switches can also be actuated via the "Inverter Off" input.
If a Powador-protect is used as the central interface protection, the fail-safe disconnection of suitable KACO inverters
from the public grid can be carried out by the internal interface switches instead of separate interface switches. This re-
quires the inverters in the photovoltaic system to be connected to the Powador-protect.
Information on installation and use can be found in this manual, in the Powador protect operating instructions and in the
instructions for use of the Powador protect on the KACO web site.
3 | Description of the device Manual
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