Configuring The Modbus Function - SMA 5000TL Operating Manual

8 Configuration
☐ The inverter must be registered in the communication product.
☐ The changes to the grid-relevant parameters must be approved by the responsible grid
operator.
☐ When changing grid-relevant parameters, the SMA Grid Guard code must be available (see
"Application for SMA Grid Guard Code" at www.SMA-Solar.com).
Procedure:
1. Call up the user interface of the communication product or software and log in as Installer or
User.
2. If required, enter the SMA Grid Guard code.
3. Select and set the required parameter.
4. Save settings.
8.6 Configuring the Modbus Function
The Modbus interface is deactivated by default and the communication ports 502 set. In order to
access SMA invertes with SMA Modbus
activated. After activating the interface, the communication ports of both IP protocols can be
changed.
For information on commissioning and configuration of the Modbus interface, see the Technical
Information "SMA Modbus® Interface" or in the Technical Information "SunSpec® Modbus®
Interface" at www.SMA-Solar.com.
Data security during activated Modbus interface
If you activate the Modbus interface, there is a risk that unauthorized users may access and
manipulate the data or devices in your PV system.
• Take appropriate protective measures such as:
– Set up a firewall.
– Close unnecessary network ports.
– Only enable remote access via VPN tunnel.
– Do not set up port forwarding at the communication port in use.
– In order to deactivate the Modbus interface, reset the inverter to default settings or
deactivate the activated parameter again.
Procedure:
• Activate the Modbus interface and adjust the communication ports if necessary (see the
Technical Information "SMA Modbus® Interface" or "SunSpec® Modbus® Interface" at
www.SMA-Solar.com).
50 STP5-12TL-20-BE-en-15
® ®
or SunSpec Modbus
SMA Solar Technology AG
®
, the Modbus interface must be
Operating Manual