Connect and configure Deye/SunSynk/Sol-Ark inverters

Overview

Follow the steps below to connect the following inverters to SolarAssistant:

  • SunSynk
  • Deye
  • Sol-Ark
  • Turbo Energy

Step 1 - Select inverter

On the configuration page, select "Deye, SunSynk, Sol-Ark" as your inverter model.

Select Deye inverter

Step 2 - Select connection interface

Select the USB port where your inverter is connected. If you have multiple inverters, you need to multi-select all of them.

Select Deye USB cables

USB to WiFi/RS232

A USB serial cable can be plugged into WiFi RS232 port located on the bottom of the inverter. This is a normal USB serial cable available from most electronic stores.

Deye RS232 DB9 interface Deye WiFi RS232 port

USB to RS485

A USB RS485 cable can be plugged into the RS485 port located on the inside the inverter. This is an RS485 cable with a specific RJ45 pinout that can be purchased in our online store.

Deye RS485 cable Deye RS485 port

Deye/SunSynk/Turbo Energy 5K

Deye/SunSynk 5kW RS485 port

Deye/SunSynk 8K

Deye/SunSynk 8kW RS485 port

Deye/SunSynk 3 phase (Inverter firmware version before 2022-07-20)

Deye/SunSynk 3 phase legacy RS485 port

Deye/SunSynk 3 phase (Inverter firmware version after 2022-07-20)

The inverter manufacturer released a firmware update which changed the port to read the inverter via RS485. An RJ45 splitter can be used to allow SolarAssistant to read the inverter while the inverter is also reading a battery via CAN.

Deye/SunSynk 3 phase RS485 port

Sol-Ark 8k

Sol-Ark 8kW RS485 port

Sol-Ark 12k

Sol-Ark 12k RS485 port

Sol-Ark 12k Outdoor

An RJ45 splitter can be used to allow SolarAssistant to read the inverter while the inverter is also reading a battery via CAN.

Sol-Ark 12k outdoor RS485 port

RJ45 Splitter

An RJ45 splitter simply duplicates all pins in a port into two ports. It can be used to plug a CAN and RS485 cable into the single BMS/Battery port of the Deye/SunSynk 3 phase or Sol-Ark 12k outdoor.

When buying an RJ45 splitter, there are two typical products on the market. The one on the left works as expected as it simply diplicates all pins into two ports. The one on the right does not work as it doesn't simply connect pin 1 to pin 1, it changes them around as it's designed for ethernet use.

Note an alternative to a RJ45 splitter is to crimp two cables into a single RJ45 plug.

RJ45 splitter