Hello, after a long time - this thread has started.
Currently, I have two Siemens LOGO PLCs at home connected to the LAN and controlled by Domoticz via NodeRed.
Everything works well and stably.

Zrzut ekranu 2026-01-23 183042.jpg

The flow created with ChatGPT took several days of testing ...

I don't think it's realistic to connect it to Domoticz.

I tried both videos - in the first one, I have slightly different options in the nodeRed blocks.

In the film:
w filmie.jpg


At my place
uMnie.jpg

In the second video, it works fine, but it's only the input state. So, when I click IN on ...

The connection seems to be working because I've added four outputs, Q 1 - 4. There's just something strange going on. When I physically violate the input on the LOGO that activates OUT 1, the state of all the blocks in NodeRed changes from false to true – so something isn't working properly.

There ...

Spróbuj, jeśli możesz nawiązać połączenie ze swoim Logo8 PLC

It seems the connection was successful:
Now how to view outputs and inputs and be able to control them from domoticz.

My Logo is OBA8 and here is the exact model:


IMG_1822.JPEG



If there is another model that can be communicated, I will buy another model because I noticed useful functions in the logo that I can use in my automation.

After logging in to Logo, I found the following data in the Logo Soft ...

Unfortunately, I'm having the same issue: using the plugin in question causes Domoticz to freeze and stop. I can't even edit the plugin settings because Domoticz freezes.

There must be another way, since Siemens Logo supports Modbus communication, so perhaps NodeRed will help?
@FireWizard is an ...

Hello,
Is it possible for Domoticz to communicate with a Siemens LOGO PLC? If not, can Domoticz easily communicate with another PLC?
If it's possible with Siemens LOGO, how do I do it? I happen to have a Siemens LOGO in stock.

I'm asking because I'd like to implement lighting automation, and on the ...

You never know what the future will bring; you might need to switch to Zigbee.

Generally, I think that if the device is a newer generation, it's better, more durable, works better, etc.

Generation 3 also has obstacle detection, but I don't know how it works; I haven't tested it.

Przeszkody GEN3 ...

So I definitely need to start with ZigBee.
What device should I buy that's compatible with the Raspberry Pi on which I have Domoticz?
I once bought a CC2531 for this purpose, but it's sitting on a shelf. Will it be suitable for this purpose?

Hello
The new Shelly PM2 Gen 4, the newer fourth generation, has arrived.
Of course, since I still have 12 old Shelly 2.5 units, one of them regularly fails, and a few days ago, another one failed, so I need to replace it. I was planning to buy the Gen 3, but it turns out there's a new generation ...

ok so I select the whole flow and give copy.
Then new FLOW and ctrl+V

Question:

Where do I put the shelly ID?

You showed me where to put the IDX switch and temp - thank you
Where do I put the shelly ID?

I'm testing this new flow for the second day and everything works fine.

Where do I provide the switch IDX and temperature IDX?

1. I just need to turn on the flows and dashticz stops working properly.

2. I start a scene in domoticz and then the lighting from the sensors stops working, i.e. communication between Domoticz and sonoff 4ch.

Did you already test with the 2 nodes, I sent you?

YES:

TestowyFilter.png

Unfortunately it doesn't work.

Communication is down.
- Dashticz stops working.
- Lighting from sensors also - in this case new domoticz settings turn on the switch but there is no communication to Sonoff for Sonoff to ...

Is it "Dashticz" that causes the loop? I do not expect that, as I can't get an idea, how that should work.
I don't think that "Dashticz" interferes with MQTT.
But I cannot test that either, as I do not have "Dashticz" installed.
Dashticz works correctly.

After recent tests I think that:

If I ...

1. Go to "Setup" ====> "Hardware"
2. got to MQTT (your Id = 4), called MQTT Client gateway with LAN interface.
3. What is your configuration of "Prevent Loop"? Let me know.

Test as follows.

1. Activate the push button for the Shelly in Domoticz. Note what you see in the Debug node and let me kinow.
2. Do it again with your "Scene" button. Note again what you see in the "Debug" node and let me know.

I don't see any differences

Switch Domoticz:

switch.png

Scena ...

I haven't tested the above option yet.

But NOTE:
Although I turned off two nodes as in the post, in the morning the lighting no longer worked from the sensors, after turning off the entire flow, the lighting started working and has been working until today. The roller blind is controlled from the ...

Of course, in this earlier flow without temperature this problem does not exist.

So maybe I will skip the temperature sensor but it is a bit of a shame because I wanted to monitor the shelly temperature due to the temperature problems in the earlier shelly versions.

The blinds closed from the Domoticz scene.

I start dashticz and I already have poor performance - no response to switches.

I do this:


And dashticz starts working properly.