Third-party network management connection on SUN2000L

Created: Apr 19, 2019 08:53:04 60 0 0 0

This post is about the third-party network management connection on SUN2000L. Let's check it out!


Step 1. Start Packet Sender; with the start of the software, a TCP server must be turned on.

Set Persistent TCP as enabled; the 'Packet Sender' TCP port is: 59755.


In this way, we simulated a Modbus/TCP server on the computer side. This is the role that third-party grid management will play in the future.

Step 2. Connect the inverter to this server via the FusionHome app.


We got the IP address as, binding port 59755. Configure the parameters on the FusionHome app as follows:


When you click the 'Connect' button, the software will open up a new window.

Step 3. Send the command

Query the value of the register as described in the documentation.

e.g.  00 01 00 00 00 06 00 037E 3200 02 ( 'Packet Sender' did not support HEX input, so we need to transfer HEX to ASCII; this conversion function is in the main window of 'Packet Sender').

 Structure of the protocols:

Protocol Identifier:       00 01

Protocol Type:                00 00

Data Length:                    00 06

Logic Device ID:              00              (Logic device ID should be '00'; the inverter product used as a slave node)

Function Code:                03

Register Address:          7E 32

Number of Registers:  00 02


From the inverter you will receive a reply as following:  00 01 00 00 00 03 00 83 02.

  • x
  • convention:


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