Configuring Modbus Devices - SMA DATA MANAGER M Operating Manual

SMA Solar Technology AG
Requirements:
☐ There must be an appropriate energy meter installed at the grid-connection point within the
system.
Procedure:
1. Log into the user interface of the Data Manager.
2. Select the menu item Grid management service in the menu Configuration.
3. Select the button Configuration and activation in the Reactive power row.
☑ The installation assistant will open.
4. Confirm every step with [Continue]
5. Select the operating mode Closed-loop control.
6. Select the setpoint Reactive power/Voltage characteristic curve Q(V).
7. Follow the installation assistant steps and make the settings according to the specifications
required by the grid operator and laid down in the standards.
8. Click on [Save].
9. For new and replaced inverters, select the Parameters menu item in the Configuration menu
and set the following parameters: Country standard of the inverter; Operating mode of the
inverter's feed-in management.
8.5

Configuring Modbus Devices

Connected Modbus devices can be used, for example, as energy meters for generation and
consumption data at the grid-connection point or for energy monitoring. For this, predefined
Modbus profiles, user-created Modbus profiles or the SunSpec Modbus profile must be used. The
Modbus profiles will then be assigned to the Modbus devices.
IP addresses of Modbus devices
In systems with Modbus devices, static IP addresses must be assigned to all Modbus devices.
Suitable IP addresses can be assigned to the Modbus devices from the free address supply of
the network segment either manually or dynamically via DHCP.
If the IP addresses are to be assigned dynamically, DHCP must be activated in the router (see
the router manual). Make sure that the Modbus devices do not contain variable IP addresses
but always the same IP addresses (static DHCP).
This also applies to Data Managers that are used as subordinate devices.
If IP addresses of Modbus devices have been changed, all devices must be restarted.
Creating a New Modbus Profile
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 Modbus devices and confirm with [Next].
5. Select Manage Modbus profiles.
Operating manual
8 Operation
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