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Compatibility · Ready for GridZeno

Deye hybrid, three-phase (LP3) with GridZeno.

The battery is controlled with Deye's remote control, which stops by itself if the dongle goes silent. On a firmware without remote control, the dongle uses the inverter's time-of-use program and puts your own back afterwards. Applies to SUN-5-12K-SG04LP3, SUN-3-20K-SG05LP3 and SUN-3-8K-SG06LP3.

01

What GridZeno can do on Deye hybrid, three-phase (LP3)

Deye hybrid, three-phase (LP3) on the compatibility list, updated 31 October 2026.

  • Live overview of solar, consumption and gridAll subscriptions
    Works
  • Battery state of chargeAll subscriptions · requires a battery
    Works
  • Stop selling at negative pricesSmart and Pro · Requires the installer to have turned export limiting on in the inverter. GridZeno only lowers a limit that's already set.
    Works
  • Charge from the grid when power is cheapSmart and Pro · requires a battery
    Works
  • Discharge the battery when power is expensivePro · requires a battery · On a firmware without Deye's remote control, the inverter doesn't sell from the battery when zero export is turned on.
    Works

Works: tested and measured on real hardware.

02

How the inverter is controlled

The dongle controls the battery with Deye's remote control and puts the inverter's own settings back afterwards.

Three-phase
Deye's remote control. The dongle renews the command while the block lasts, and if the dongle stops, the inverter goes back by itself. On a firmware without remote control, the inverter's time-of-use program is used instead.
Sell from the battery
Through the inverter's maximum sell power. With the time-of-use program and zero export turned on, the inverter only uses the battery for the house.
Stop selling at negative prices
The inverter's export limit is set quarter by quarter by the selling price, but only where the installer has turned export limiting on. GridZeno only lowers a limit that's already set and never turns it on or off.
Manual
When the control is on Manual, the dongle changes nothing on the inverter. It reads, and if GridZeno has changed something, it puts the inverter's own settings back, including your own charge limits.
03

What is special about the Deye hybrid, three-phase (LP3)

Holding 0 is 0x0500: Deye's three-phase hybrid for a low-voltage battery. The dongle doesn't look at the model name, only at that code.

Remote control
If the firmware has it, the battery is controlled with 1100-1109. The dongle decides from the values in 1100 and 1101. Firmware 1135 and 1147 answer 0x0500 in 1100 and don't have it, and then the time-of-use program in 146-177 is used.
If the dongle goes quiet
The watchdog in 1101 runs out, and the inverter leaves remote control by itself. The dongle sets it to the time until the battery reaches the target or the floor, plus 45 seconds, and renews it every 20 seconds.
Highest charge level
The stop charge level in 267, 90-100 %.

What the dongle allows for

  • Deye accepts only function 0x03 and 0x10, so the dongle never writes with 0x06.
  • If the inverter doesn't keep three remote commands before one is confirmed, the dongle switches to the time-of-use program for the rest of that start-up.
  • The dongle doesn't take over remote control that another system has set.
  • Firmware with a protocol before V104 has the grid only as a 16-bit number in 625.

How it differs from its neighbours

For the installer: the registers

What the dongle uses over Modbus, if you want to follow along or troubleshoot. Don't change the registers yourself while control is set to Automatic.

Remote control
1104 = 1, 1105 = 2, 1109 = the battery power in 0.1 % of the rated power, the watchdog 1101 = 10-18000 seconds, and then 1100 = 1. 1100 = 0 releases.
Export limit
142 is the switch, 143 the highest selling power.
Measurement
The grid in 625 and 690, the battery in 586-590, the sun in 672-675.

From the dongle's firmware and our notes on each inverter, not from the datasheet.

04

How to connect the dongle

Network cable with RJ45 plug. Approx. 25 minutes. Needs an electrician: the inverter has to be opened.

Port
Modbus
Pin
A at pin 7 (485_A), B at pin 8 (485_B), GND at pin 6 (GND_485)
Where
In the connection compartment at the bottom of the inverter, behind the cover, in the row of RJ45 ports together with Parallel A and B, Meter-485 and BMS. The order of the ports differs slightly from model to model, so look for the name Modbus. The cable is passed in through a cable gland in the bottom.

See the full installation guide for Deye hybrid, three-phase (LP3)

GridZeno Dongle for Deye hybrid, three-phase (LP3)

05

Before you buy

This one works.

Deye hybrid, three-phase (LP3) is the inverter GridZeno has been tested on. Check that your model is under SUN-5-12K-SG04LP3, SUN-3-20K-SG05LP3 and SUN-3-8K-SG06LP3, and that a battery is fitted if you want the battery controlled by the electricity price. If it still doesn't suit you, you have 100 days' free return.