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Installation · Huawei

Install GridZeno on Huawei SUN2000.

For Huawei, there's no cable from the GridZeno dongle to the inverter. It talks to Huawei's Smart Dongle over your network with Modbus TCP, which must be switched on in the FusionSolar app. The Smart Dongle is Huawei's own accessory, which sits in the inverter's dongle port and is bought separately. The inverter's built-in Wi-Fi can only be used for the app, not for GridZeno.

Applies to
SUN2000 and SUN5000 with Smart Dongle SDongleA-05
Connection
Over your network, without a cable to the inverter
Time
About 15 minutes

The battery is controlled with forced charge and discharge, which runs out by itself on the inverter if the dongle goes silent. What GridZeno can do on Huawei SUN2000

How the dongle recognises it: The model name in 30000 starts with SUN2000 or SUN5000. The battery is in 47000/47089: 2 is LUNA2000, 1 is LG RESU.

GridZeno Dongle for Huawei SUN2000

01

What you need

GridZeno Dongle
The device ID is on the label, e.g. GZ-A1B2C3.
Huawei Smart Dongle
SDongleA-05 (WLAN-FE) on your network. The 4G version SDongleB-06 isn't on your network and can't be used.
The FusionSolar app
And an installer login to the inverter, or your installer.
Access to your router
To find the Smart Dongle's IP address.
USB power
A 5 V USB charger and a cable with USB-C.
02

The connection

Huawei's Smart Dongle SDongleA-05 in the inverter's dongle port, marked 4G/FE or WLAN-FE. It must be on your network with Wi-Fi or a network cable. If you have several Huawei inverters daisy-chained, the Smart Dongle and the energy meter are on the first one. The GridZeno dongle only needs power and network.

Connection
Huawei Smart Dongle (Modbus TCP, port 502)
03

Settings

On Huawei Smart Dongle

Dongle parameter settings > Modbus TCP
Enable (Unrestricted)

In GridZeno's Welcome

The inverter is chosen in GridZeno: in Welcome the first time, and later under System, Change inverter. The dongle fetches its setup from there.

Manufacturer and model
Huawei, SUN2000
Connection
Over the network (Modbus TCP)
The inverter's address on your network
The Smart Dongle's IP address. Port 502 is used automatically.
04

Step by step

Each step has a small drawing that shows what to do.

  1. 1
    Switch on Modbus TCP in FusionSolar

    Log in to the inverter as installer under Device Commissioning in the FusionSolar app. Go to Settings, Communication configuration, Dongle parameter settings, Modbus TCP, and set the connection to Enable (Unrestricted). If the setting isn't there, the installer can switch it on in FusionSolar on the web.

  2. 2
    Find the Smart Dongle's IP address

    Find it in your router's list of devices. Give it a fixed address in the router so it doesn't change, otherwise GridZeno loses the connection.

  3. 3
    Connect power to the dongle

    Plug the USB-C cable into the dongle and the charger into a socket. The dongle starts by itself. It gets power from the charger, not from the inverter.

  4. 4
    Connect the dongle to the network

    Over Wi-Fi: the first time, the dongle creates its own Wi-Fi, GridZeno-Setup- followed by the last characters of the device ID. Connect your phone to it, choose your own network, and enter the password. Over cable (LAN): plug a network cable from the router into the dongle's network port. The dongle must be on the same network as the Smart Dongle.

  5. 5
    The GridZeno dongle talks to the Smart Dongle

    There's no cable between them. They meet in your router, and the GridZeno dongle queries the Smart Dongle on port 502.

  6. 6
    Log in to GridZeno

    Log in to GridZeno. Welcome pairs the dongle with its device ID and then asks about your inverter.

  7. 7
    Choose your inverter in Welcome

    Choose your inverter, Huawei SUN2000, and the connection Over the network (Modbus TCP). Enter the Smart Dongle's IP address in the field The inverter's address on your network, and press Save inverter. Port 502 is used automatically. The dongle then fetches its setup and reads from the inverter.

The dongle's own setup is described with screenshots in The user guide, and the pairing in Getting started.

05

Take care

Without Modbus TCP switched on, GridZeno can neither read nor control. The change requires installer access.
Huawei requires installer access to let others control the battery. If GridZeno can read but not control, that's the access that's missing.
A Smart Dongle can follow up to 10 daisy-chained inverters. If the system is instead connected to a Huawei SmartLogger, the inverter can't have a Smart Dongle. Write to us if you have a SmartLogger.
Never plug the GridZeno dongle's RS485 cable into the inverter's COM port. It's used by the energy meter, the battery and the Smart Dongle.
Models ending in -ZH, -BR or -BE are for China, Brazil and Belgium. Only Belgium is in the EU.

What GridZeno can control on Huawei SUN2000, and how, is on the page about Huawei SUN2000. If you're stuck, write to us with the model name.

06

Source

Ports, pins and menus are from the manufacturer's own manual: Huawei: Modbus TCP, FusionSolar App and SUN2000, and the user manuals for SUN2000-L1, -LB0, -LC0, -M1, -MAP0, -MB0, -M5, -M0, -M2, -M3, -MC0 and -MG and SUN5000-MAP0, -MB0 and -MG0, Dongle parameter settings, Modbus TCP.