• SDongleA-05 (Dongle for short) is a smart communications expansion module that works
with Huawei inverters to implement communication between inverters and the management
system using WLAN or FE.
• A Dongle can be used for device cascading using RS485 communication (inverter cascaded
or inverters cascaded with other devices). A maximum of 10 devices can be cascaded.
•
If cascaded inverters include a single-phase inverter or are connected to batteries, a
maximum of three inverters can be cascaded.
•
When multiple inverters are cascaded, only one Smart Dongle or one SmartLogger is
allowed.
1
Communication Scenario
SDongleA-05 Smart Dongle
Quick Guide (WLAN-FE)
Document Issue: 10
Part Number: 31500HMN
Release Date: 2022-06-27
Router
App
2
Installation and Commissioning
1. Install the Dongle.
Before setting parameters, ensure that the AC and DC side of the inverter has been powered on.
2. Install the FusionSolar app. Perform
the Setup wizard operations. If you
have performed such operations, skip
this step. If not, you can scan the QR
code below to obtain the app quick
guide which describes the Setup
wizard operations.
Number of devices in the
RS485 communication scenario
Limited Number Actual Number
Maximum number
of devices that can
be connected to
the Dongle
slave
inverters
Number of other
10 n ≤ 9 ≤ 9 – n
Inverter USB port
•
Inverters with different appearances are used in the same communication scenario. The
inverters in this document are used as an example.
•
In the networking, the inverter where the Dongle is installed is the master inverter, and other
inverters are slave inverters. Slave inverters can communicate with the Dongle through
cascading.
•
In the communications scenario, ensure that the wireless network of the inverter and router
is not disturbed and that the signal is normal.
You are advised to use a CAT 5E outdoor shielded network cable (outer diameter < 9 mm;
internal resistance ≤ 1.5 Ω/10 m) and shielded RJ45 connectors.
Inverter USB port
LED indicator
The information in this document is subject to change without notice. Every effort has been
made in the preparation of this document to ensure accuracy of the contents, but all
statements, information, and recommendations in this document do not constitute a warranty
of any kind, express or implied.
The Dongle is not secured or is not
powered on.
Yellow (blinking
green and red
simultaneously)
The Dongle is secured and powered
on.
Blinking at
short
intervals (on
for 0.2s and
then off for
0.2s)
The parameters for connecting to
the router are to be set.
The Dongle is faulty. Replace the
Dongle.
Blinking red and
green
alternatively
Blinking at
long
intervals (on
for 1s and
then off for
1s)
No communication with the
inverter
•
Remove and insert the Dongle.
Check whether inverters match
the Dongle.
Connect the Dongle to other
inverters. Check whether the
Dongle or the USB port of the
inverter is faulty.
Router
connection
settings
Blinking at long
intervals (on for 0.5s
and then off for 0.5s)
Blinking at short
intervals (on for 0.2s
and then off for 0.2s)
Failed to connect to the router.
Check whether the parameters for
connecting the Dongle to the router
are properly set. If not, set the
parameters correctly.
Management
system
settings
Successfully connected to the
management system.
Blinking at long
intervals (on for 1s
and then off for 1s)
Failed to connect to the
management system. Check whether
the parameters for connecting
inverters to the management system
are properly set. If not, set the
parameters correctly.
Blinking at short
intervals (on for 0.2s
and then off for 0.2s)
The inverter is communicating with
the management system through
the Dongle.
Master
inverter
Slave
inverter 1
Slave
inverter n
Devices in the
dashed box are
optional.
Management system
WLAN Communication
FE Communication
•
In areas (such as the UK) where the FusionSolar app is not available, or
when a third-party management system is used, only the SUN2000 app
can be used for commissioning. This document uses the FusionSolar app
as an example to describe the commissioning method. For the SUN2000
app, perform operations as required.
•
To obtain the SUN2000 App, scan the QR code or search for "SUN2000"
in Huawei AppGallery, download the latest installation package, and
install the SUN2000 app by following the instructions. The SUN2000 app
version should be 3.2.00.002 (Android) or later.
Maximum Number of Devices
10 (Inverters are connected with each other over RS485.)
Not encrypted, WPA, WPA2, WPA/WPA2
Plug-and-play (applicable to inverters only)
Ingress Protection Rating
Typical Power Consumption
Standard and Frequency Band
802.11b, 802.11g, 802.11n
2.412 GHz to 2.484 GHz
4000 m
Performance Parameters
If devices are connected to the 485B2 and 485A2 ports of
the master inverter, the devices are not included as cascaded
devices.
3
Obtaining Documentation
You can obtain the latest version of this document by scanning the following QR codes.
Chinese
English
Deutsch
Français Español
Türkçe Português Italiano Nederlands Polski.
Master Inverter Slave Inverter
-50KTL/60KTL-M0
Inverter Model Requirements
FusionSolar app
Quick guide
Copyright © Huawei Digital Power Technologies Co., Ltd. 2022. All rights reserved.
Huawei Digital Power Technologies Co., Ltd.
Huawei Digital Power Antuoshan Headquarters
Futian, Shenzhen 518043
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