SMA DATA MANAGER L, Руководство по эксплуатации

Страница: 47 / 64

8 Operation SMA Solar Technology AG
Operating manual EDML-10-BE-en-13 47
Stand-alone master
Select the option Stand-alone master (recommended) in the installation assistant if you use the
Data Manager as a stand-alone device without other subordinate Data Managers for open-loop or
closed-loop control of your system.
Superordinate master
Select the option Superordinate master in the installation assistant if you use the Data Manager
as a superordinate device with other subordinate Data Managers for open-loop or closed-loop
control of your system. With this option, the superordinate Data Manager forwards the open-loop
or closed-loop control commands to the subordinate Data Manager via Modbus. For this,
subordinate Data Managers must be integrated as Modbus devices into the system of the
superordinate Data Manager. Meters at the grid-connection point must be connected to the
superordinate Data Manager. The Modbus server must be activated in the superordinate
Data Manager.
Slave
Select the option Slave in the installation assistant if you want to use the Data Manager as
subordinate device. With this option, the subordinate Data Manager receives the open-loop and
closed-loop control commands of a superordinate device. These commands are forwarded as
open-loop control commands to the connected devices. In systems with a superordinate
Data Manager as master, all slaves must first be commissioned to be able to integrate them into the
system of the superordinate Data Manager. To do this, select the operating mode
Control and the
signal source Modbus for the subordinate Data Manager.
8.7 Speedwire Encryption of the System Communication
Speedwire encryption is used to encrypt system communication between all compatible Speedwire
devices. In order to be able to use the Speedwire encryption in the system, all connected
Speedwire devices, apart from the SMA Energy Meter, must support the SMA Speedwire
Encrypted Communication function.
Speedwire encryption for systems with one Data Manager
In systems with more than one Data Manager, there can be overlaps in the system encryption.
• Only enable the Speedwire encryption in systems with one Data Manager.
Requirements:
☐ All devices in the local network must be in operation and connected to the product via an
Internet router.
☐ All devices must support the Speedwire encryption.
Procedure:
1. Log into the user interface of the Data Manager.
2. Select the menu item
Device administration in the menu Configuration .
3. Select the button.
4. Select
SMA Speedwire devices and confirm with [ Next ].
☑ All SMA Speedwire devices in the systems are searched for and displayed.