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Controller operation (with HEMS)

You can set the operating mode under Power control > Controller operation. The blue'Log can be operated in three different modes:

Operating modes

Operating modes

  • Standalone: only one blue'Log is used for controlling your system

  • Master: several blue'Logs are required for large-scale control over your system, with the devices running in master-slave operation. The master blue'Log XC sends signals to a slave blue'Log XM. 

  • Slave: A slave blue'Log XM receives signals from the master blue'Log XC. 

Set up standalone mode

Prerequisites

  • Your inverters are connected to a single blue'Log

Steps

  1. Go to Power control > Controller operation > Operating mode > activate the Standalone button.

  2. A window appears asking if you want to change operating modes. Select OK.

  3. Select Save.

 Example - standalone mode

Example: standalone mode

Set up master-slave mode

For a master-slave mode, you need to determine whether your inverters are connected to a single blue'Log or multiple blue'Logs. For each grid connection point, only one master can be part of the control loop. All other blue'Logs must be operated in slave mode. The following graphic illustrates a typical scenario:

Example - master slave mode

Example: master-slave mode

Prerequisites

  • Your inverters are connected to two or more blue'Logs

  • Firmware: master and slave must have the same firmware

Steps

  1. Go to Power Control > Controller operation > activate the Master toggle.

  2. A window appears asking if you want to change operating modes. Select OK.

  3. The blue'Log automatically searches for blue'Logs in the same network. These are displayed in the Slaves area.

  4. In the Actions column, select the Link icon to indicate that the blue'Log is a slave. A green check mark will appear next to the blue'Log name. Alternatively, you can also select multiple slaves by checking the box and selecting Connect selected.

  5. If slaves are not automatically found, check under System > Ethernet > Hostname that the Avahi toggle is activated. If this does not work, go to Power Control > Operating data > Slaves. Select Add device by IP. In the window that appears, enter the IP address and select OK.

Hostname.png

Hostname

Add device by IP.png

Add device by IP


Slaves overview

The Slaves area shows all available devices that can be connected as slave devices.

Slaves.png

Item

Name 

Details

1

Green check mark

The slave is connected to this device

2

Chain icon 

Connect device as a slave to this device

3

Yellow check mark 

The slave is connected to another device

4

Arrow icon

Access the web interface for this slave device

5

Add device by IP

Manually add a device using its IP address

Set up slave mode

Prerequisites

  • A blue'Log XM or XC connected via Ethernet to a blueLog XC

  • Firmware: master and slave must have the same firmware

For slave mode, the master device must first send a connection request. The name of the master blue'Log will appear under Power control > Controller operation > Assigned master. If a device is operating in slave mode, the sidebar items Active power and Reactive power will be grayed out.


Further actions

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