Dunext PowerHill 261

The PowerHill 261 is a battery storage system connected locally to the Sunlight Group EMS through its Ethernet interface. The connection reads the system's power and battery information and provides a battery power setpoint.

Compatibility

This page covers the PowerHill 261. It does not list other Dunext models as compatible.

Connect the system

1. Connect the PowerHill 261's Ethernet interface and the EMS to the same local network. Follow the Ethernet wiring guidelines.
2. Note the IP address of the PowerHill 261 system.
3. In the controller's device setup, select the battery category, manufacturer Dunext and device Dunext PowerHill 261.
4. Choose Modbus TCP, enter the system's IP address and port 502, and use Modbus address 1 for this connection.
5. Add the detected system. Check that battery state of charge, voltage, current and system power update before enabling energy management.

Measurements and control

The battery is represented with a capacity of 261 kWh. The controller applies a battery power setpoint through the system's local interface and switches the system to remote control when energy management is active.

The presence of a PV power measurement does not mean that separate PV curtailment is available. This integration does not provide an independent PV power-limit command.

If the system is not found

• Check that you selected Dunext PowerHill 261, rather than a similarly sized battery from another manufacturer.
• Check the system's IP address, network connection, Modbus TCP availability and port 502.
• Use the connection address 1. The controller handles the system's internal components as part of this connection.
• If the PowerHill 261 selection is absent, the installed controller software does not offer this connection. It cannot be added by choosing another device model.