[APP][Pro] SolarEdge + Growatt TCP modbus

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So, took the plunge and ordered the Waveshare RS485 to PoE Ethernet Module and had some time today to hook it up and configure it.

I connected both my Growatt 3000TL3-S inverters to the module and after some fiddling on the Inverters (Giving each a unique ID) and in the module’s settings I got it working!

Here the settings that work for me:

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I made the following changes that differ with de module’s default settings:

Network Settings

  • Device Port, set it to 502
  • IP Mode, switched it to DHCP (Obviously made a reservation in my router)

Multi-Host Settings

  • Protocol, switched it to Modbus TCP to RTU
  • Enable Multi-host, switched to Yes
  • Instruction Time out, was automatically set to 256 after saving the Protocol and Enable Multi-host settings.

It seems not all information from my inverters is handled correctly, I’ll monitor that and make a separate post for that.

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