Solplanet inverter modbus.
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Description
Overview With the help of the modbus interface, we can directly monitor the production of our home power plant. The following implementation enables the system connection of a three-phase, two-string model. By studying the inputs, the template can be easily converted to monitor other SolPlanet inverters.Tested by SolPlanet ASW-8-20K-LT-G2 3 phase inverter with two strings.
Wiring: For RS-485 communication use the COM1 or COM2 connector on the inverter:
Pin's of the RJ45 plug:
RS-485/modbus comm parameters (default): 9600 8N1, device address: 1
The modbus objects:
Output:
- inverter on/of
Inputs:
- string and grid currents and voltages, - status, - errors and warnings, - temperatures
Meaning of the status, error and warning codes Device State:
- 0 = Wait - 1 = Normal - 2 = Fault - 4 = Checking
Warnings and errors:
Loxon config example
e-mail: [email protected]
Inputs and outputs · 21
| Name | Type | Unit |
|---|---|---|
| Device State | Modbus | <v> |
| Power factor | Modbus | <v.2> |
| Error message | Modbus | <v> |
| Warning message | Modbus | <v> |
| PV1 current | Modbus | A |
| PV2 current | Modbus | A |
| L1 Phase current | Modbus | A |
| L2 Phase current | Modbus | A |
| L3 Phase current | Modbus | A |
| Air temperature | Modbus | °C |
| Inverter U phase temperature | Modbus | °C |
| Inverter V phase temperature | Modbus | °C |
| Inverter W phase temperature | Modbus | °C |
| Grid frequency | Modbus | Hz |
| Bus voltage | Modbus | V |
| PV1 voltage | Modbus | V |
| PV2 voltage | Modbus | V |
| L1 Phase voltage | Modbus | V |
| L2 Phase voltage | Modbus | V |
| L3 Phase voltage | Modbus | V |
| Power remote switch command | Modbus | <v> |
FAQ
No questions have been answered yet.
Questions and answers
Communication Solplanet inverter
OpenHi there!
in on of my project i have 2 solplanet inverters, the same you tested you're template on.
The Problem is in cannot get a connection with the inverters,
And the question is what type op communication protocol do you use?
RS485? or the modbusserver though the IP adress on the inverters.
I loop forward to your reaction!!
You can also email me on: [email protected] , that will maybe a lot of easier.
And you can also contact me in dutch, i'm from Holland!
Thanks in advance!!
Kind regards,
Nick Kuipers.
1 reply
I use the device on the modbus rtu protocol, with an IP modbus gateway. You can also use it with Loxberry or Tasmota. (I tried the latter and it works well.) If you don't know, search for its name on the internet! It is worth looking at the parameters of the serial port and, if necessary, setting the speed, the number of bits, parity and the stop bit. I hope you will set up sucessfully. (If it's better, you can also write to me in Hungarian, I speak that language perfectly. :) )
General Integration Level
OpenHello,
I am faced with the decision of whether to get a PV system with an inverter from Solplanet or Fronius. How good is the integration of Solplanet, including the Solplanet battery storage?
Would you recommend this combination, or should I go for Fronius and BYD storage instead?
My focus is on integration with Loxone and energy management. Please share your experiences, thank you.
2 replies
Sorry, I can't help you with that.
Let me rephrase my question:
Based on your experience, is it possible to read the key data from the Solplanet inverter and process it in Loxone?
My use cases are: identifying whether and how much electricity the PV system is currently generating, so I can control certain devices via Loxone (e.g., the wallbox, heat pump, or air conditioner should only be switched on when the PV system is producing electricity). Additionally, I would need to see in Loxone information on how full the battery is.
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