Fronius Hybrid with Modbus TCP

[renezs]

I have the Symo Gen24 Plus 8.0 and the firmware 1.9.7-0. This should be the actual

[Tico]

What type of inverter do you have and what is the firmware version? Have you checked that your inverter is updated to the latest firmware?

[renezs]

Hello,

does anyone have the modbus register data for the new smart meter TS65a-3. It seems to bee different with the template from here. The communication works but there are or not the right value.

[Tico]

That's jogged my memory now when copying into a new project page. I'll get around to updating the xml files in due course.

[LoxMunich]

You have to import the .xml files

Only the memory flag / Merker are added automatically if you just "select all" elements from the .Loxone page and copy & paste it into a new project page.
Neither the sensors nor the actors within the Modbusserver and even not the virtual inputs / outputs are there

[Tico]

Thanks for pointing that out. The .Loxone file is the most recently updated - use it.

I think I'll delete the .xml files in the wiki. I seem to remember that they were required in previous Config versions when loading up the .Loxone file. Perhaps someone can confirm whether the .Loxone file brings all sensors/actuators across without the underlying xml data? I can't test that on my existing installation.

https://www.loxwiki.eu/display/LOXEN...ith+Modbus+TCP

[LoxMunich]

Thanks, I will try this the next days.

One other question: the sensor values in the .Loxone file seem to be different to the sensor values in the .XML files.
E.G.

left the imported .xml / right the .Loxone sample file


What is the latest version / which should I use?

[Tico]

LoxMunich - You're welcome.

1. Ignore the missing numbers. You haven't missed anything. When creating the wiki, I excluded some of my own data fields that filled 07 to 10 that were not relevent for the .loxone file.

2. Look at the Fronius Smart Meter sensor 'W' = Flow to/from grid - kW (Positive=Import, Negative=Export). Run this sensor into a State Block value AI1. Run the Battery State of Charge 'ChaState' into the same State Block AI2.

Set up the argument when AI1 ≤ (minimum charging value) and AI2 ≥ 98, then output value 1. Use the value 1 for whatever switching mechanism you need. The battery varies between 98-100% in the fully charged state. You could make AI2 = 100, but car charging would then stop unnecessarily.

3. Same logic for the Ohmpilot. You need to decide which device has the 1st priority - car charging or Ohmpilot. Then if one device is charging/heating and there's still grid outflow, start the other.

[LoxMunich]

Hello Tico,

Thanks for your work! It helped me a lot.
I have three questions:

1) in the frontend there are No. 01. (Charge Control AUTO), 02,03,04,05,06 and 11. I miss 07 till 10
2) Is it possible that you extend the instructions and the .Loxone sample file to include charging with a wallbox (e.g.charge electric cr if battery is fully charged and there is more energy produced than actually consumed)?
3) Is it possible that you extend the instructions and the .Loxone sample file to include a Fronius Ohmpilot heating element control (or is ot just necessary to install a heating rod - but how to configurate this in Loxone?)

[Tico]

Yes, the following are values purely for the Hybrid inverter/battery (all the red dots) -

ChaSt
ChaState
InOutWRte_SF
InWRte
OutWRte
StorCtl_Mod

I suggest you delete them entirely. You might find the inverter won't show an error after they are deleted and the Config saved. All your values seem fine otherwise.

[Goofy]

I tried to adapt the template based on my needs (no hybrid, no battery).
Here is my current status:


I can't get a connection to the Fronius Inverter (status red).
What could be the reason, someone an idea?

Are these the values that comes only from a hybrid inverter?

[Tico]

Unfortunately, those calculations are done internally in the Energy Monitor block. You can't fix them and they increment from when the block is created.

The only aspects you can influence are the graphs. They can be manipulated with the LoxStatEdit program -

https://www.loxforum.com/forum/faqs-tutorials-howto-s/21686-loxone-statistik-editor?p=237248#post237248

OK, thanks. I thought I have to connect it near to the big construct of calculation and scaling

By the way, AC Power is closer to the Symo display, so I use this value in addition to the 1 DCW of the hybrid.

So, my actual values are correct. But the total production values (day, month, year etc.) are not correct.
I think the energy monitor block calculates them itself but uses not the values from the inverters... how can I fix this?

[Tico]

The Symo 20 is added to the Hybrid solar production, then into input Pp. The other connections in the image are omitted for clarity only.

Hi, thanks for this! I was on businesstrip, so i will test it tmorrow - Symo is in standby now

I've got one question open: To which block I have to connect the Symo value?