4 Product Overview
SMA Solar Technology AG
Operating manual EDMM-10-BE-en-20 19
SMASpeedwire
The product is equipped with SMASpeedwire as standard. SMASpeedwire is a type of
communication based on the Ethernet standard. SMASpeedwire is designed for a data transfer
rate of 100Mbps 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 SMAEnergyMeter, must support the function SMA Speedwire Encrypted
Communication.
Dashboard
On the dashboard of the user interface, system and component information are displayed clearly
and at a glance by using widgets. The dashboard display can vary depending on the system's
functional scope and user rights.
Information, such as yield forecast, system section visualization and inverter comparison, are
available via the extended functions in SunnyPortal.
Modbus
The product is equipped with two Modbus interfaces. One interface can be controlled via Ethernet
(Modbus TCP) and the other interface via RS485 (Modbus RTU).
The Modbus interface via Ethernet (TCP) can be used for industrial use (e.g. SCADA systems) and
for system communication with connected systems (e.g. energy meters). Via this Modbus interface,
data of the product can be queried and connected Modbus devices can be controlled and
regulated.
The Modbus interface has the following tasks:
• Remote query of measured values
• Setpoint specifications for system control
The Modbus interface via RS485 is used for data exchanges with energy meters and inverters via
Modbus RTU. Connected Modbus devices can be controlled and regulated via this Modbus
interface.
For the communication with connected Modbus devices, predefined Modbus profiles, user-created
Modbus profiles or the SunSpec Modbus profile can be used.
SunSpec Modbus
The product is equipped with a SunSpec Modbus interface. The SunSpec Modbus profile from the
SunSpec Alliance contains a comprehensive set of measured values and parameters for energy-
generating devices in PV systems. The product has data points of the SunSpec Alliance and
therefore conforms with the SunSpec Modbus profile of the underlying specification version (see
www.sunspec.org).
Plant-wide parameterization
You can use the system parameter assistant to change the parameters of connected devices at the
same time and to compare them. Simply select the desired devices from a list and change the
parameters. The status of the parameter changes is accessable at all times.