Fronius Integration guide#

This integration guide is compatible with the following Fronius products:

  • Fronius Symo GEN24

  • Fronius Primo GEN24

1. Modbus support#

The following types of communication can be used to connect the inverter to the SlimmeRik.

  • Option 1) Ethernet - Connect to inverter using the local ethernet or wifi network (Modbus TCP).

  • Option 2) RS485 - Connect to inverter using the SlimmeRik RS485 dongle (Modbus RTU).

    By default the modbus communication is disabled and needs to be enabled using the user interface. See section 2.

2. Enable Modbus#

Access the inverter user interface#

../../_images/ap.png
  1. Touch the optical sensor at the front of the inverter once to activate the WLAN access point. The right LED flashes blue when the access point is open.

  2. Connect your laptop / tablet / smartphone to the now available WLAN network “fronius_3xxxxxxx” (network key: 12345678).

  3. Enter the following IP address in the address bar of your browser (e.g. Google Chrome): “192.168.250.181”.

  4. Open the web interface of the inverter

  5. Select the “Communication”

  6. Open the “Modbus” menu item

Option 1) Enable modbus tcp#

  1. Activate “Slave as Modbus TCP” option

  2. Activate “Inverter control via Modbus”

  3. Set “Modbus port” to “502” (default)

  4. Set “Meter address” to “200” (default)

Option 2) Enable modbus rtu#

  1. Under “Modbus RTU interface 1”, select “SLAVE” option

  2. Activate “Inverter control via Modbus”

  3. Set “Baud rate” to “9600” (default)

  4. Set “Parity” to “None” (default)

  5. Set “Inverter address” to “1” (default)

  6. Set “Meter address” to “200” (default)

3. Wiring#

You can skip this chapter if the inverter is already connected to the local network and will communicate with SlimmeRik through Ethernet or Wifi. Otherwise follow the steps bellow.

../../_images/connections.png

3.1 - Option 1) Connect the SlimmeRik using the local network (Prefered)#

Follow the manufacturer Quick Start Guide on instructions how to connect the inverter to the local network using ethernet or wifi.

Warning

Both the inverter and the SlimmeRik must be in the same local network.


3.2 - Option 2) Connect the SlimmeRik using RS485#

  1. Remove the inverter cover as described in the manufacturer Quick Start Guide.

  2. Pull out the modbus terminal block connector from the communications board.

  3. Crimp a RJ45 connector in one end of a UTP cable with the proper length, follow the T568B standart.

  4. On the other end of the UTP cable connect the blue wire to the inverter M1+ terminal, and the blue/white wire to the M1- terminal.

  5. Plug the RJ45 connector to the SlimmeRik USB to RS485 adaptor - Type 2 (White).

../../_images/t568b.png

Note

M0 port can be used if the M1 port is not available.

5. Brand documents#