Configuring The Modbus Function; Setting Sma Optitrac Global Peak - SMA SUNNY TRIPOWER CORE1-US Series User Manual

SMA Solar Technology AG
4.16 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
must be 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 and SunSpec Modbus® Interface" at www.SMA-Solar.com.
For information on which Modbus registers are supported, see the technical information "Modbus®
parameters and measured values" 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.
To ensure data security, 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 the 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 and SunSpec Modbus® Interface" at www.SMA-Solar.com).

4.17 Setting SMA OptiTrac Global Peak

For partially shaded PV modules, you should set the interval at which the inverter is to optimize the
MPP of the PV system. If you do not want to use SMA OptiTrac Global Peak feature, you can
deactivate the feature.
The basic procedure for changing operating parameters is explained in another section (see
Section 4.11 "Changing Operating Parameters", page 31).
Procedure:
• In the parameter group DC-side > DC settings > OptiTrac Global Peak, set the parameter
Cycle time of the OptiTrac Global Peak algorithm and set the required time interval. The
ideal time interval is usually six minutes. This value should only be increased if the shading
situation changes extremely slowly.
☑ The inverter optimizes the MPP of the PV system at the predetermined time interval.
• In order to deactivate the SMA OptiTrac Global Peak feature, in the parameter group DC-
side > DC settings > OptiTrac Global Peak, set the parameter OptiTrac Global Peak
switched on to Off.
User Manual
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or SunSpec Modbus
STP33-62-US-41-BA-en_es-10
4 Operation
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, the Modbus interface
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