Dobrý den @ondbyr2561 ,

příklad naleznete na snímku níže:

5a3961da-bc15-458d-9995-7e86234d2f33-obrazek.png

Přeji hezký den,
Antonín z Unipi

Hi everyone,

Currently this is possible by flashing Mervis OS and then installing Node-RED following the standard installation instructions: https://nodered.org/docs/getting-started/raspberrypi

However, this solution is not tested and we cannot guarantee that the Mervis RT will behave correctly if other such demanding SW is running on the controller.

Best regards,
Antonin, Unipi

Hi @Vesa-Kauppinen,

try apt update && apt upgrade again.
We made some adjustments due to the new Unipi Iris HW, but this should work fine now.

Best regards,
Antonin, Unipi

Hi @lukec,

You can try the current Node-RED image, which is available at this link: https://kb.unipi.technology/en:hw:007-patron:download-image:02-nodered

Best regards,
Antonin, Unipi

Hi @Brzezinol,

you can try using nginx + LetsEncrypt for this.

Best regards,
Antonin, Unipi

Hi @ArnieX,

Thank you for your post.
This is a typical error when setting up communication with INEPRO/KLEFR electricity meters, and it is really necessary to be careful when setting up other devices (modbus tables).

Best regards,
Antonin, Unipi

Hi @knebb,

Thanks for this post, it's very helpful.

Best regards,
Antonin, Unipi

Dobrý den,

tyto moduly jsou z prvopočátků vývoje a bohužel se k nim nedochovaly potřebné manuály. Pokud však došlo ke zpomalení komunikace po aktualizaci na novější verzi, hledal bych různé intervaly komunikace (např. u komunikačních skupin) a nastavil je na 0ms.

Případně zkuste připojit modul 1W-4R-4DI přímo na 1-Wire sběrnici zařízení Unipi 1.1.

Přeji hezký den,
Antonín z Unipi

Hi @robinr1,

I'm glad you managed to solve the problem (find the cause).
Regarding the FW update, I recommend reading this article.

Currently, we have also released a new package unipi-firmware6, which already contains the so-called rescue firmware, which ensures that the subsequent upload of new FW is already much safer.

When updating to FW 6, follow the recommendations using the arguments P and U:

/opt/unipi/tools/fwspi -i {0,1,2} -P -U

Best regards,
Antonin, Unipi

Hi @Petter,

First, you need to install and enable the unipi-lte package as follows:

sudo su apt-get update apt-get install unipi-lte systemctl enable unipi-lte reboot

Configuration is then possible in the /etc/unipi/lte.conf file, e.g. by the program MidnightCommander:

mc -e /etc/unipi/lte.conf

Best regards,
Antonin, Unipi

Hi everyone,

In the current version of Mervis OS 2.4.2.4, writes to the card already occur at least, according to the set interval for storing retain variables.
For a similar reason, the history is newly stored in RAM (data is lost after the power is disconnected or restarted), which does not matter in combination with the cloud-based Mervis DB.

If you disable writes to the internal storage (SD card), there are two possibilities of what can happen (depending on how you disable the writes):

Mervis RT always unlocks the storage when writing retain variables, writes and locks the storage again for writing (basically the same behavior as now) Storage will be permanently locked and retain variables will not be writable. Likewise, it will not be possible to upload a new assembly (program) from Mervis IDE.

In general, I recommend purchasing an SLC card with a longer lifespan and resistance to random power outages, etc., for the operation of the controller.
You can read more about this issue in this article.

Best regards,
Antonin, Unipi

Hi @udokra,

If you already save the variables in the history (this guide), you can display them in the graph in two ways:

using the integrated graph - press and hold the CTRL key and click the desired value in the HMI (e.g. on the Value Indicator gadget) with the mouse left button, then the graph tab will appear (similar to Mervis SCADA) Insert the graph as a gadget, instructions are available here: Mervis HMI - Chart

Best regards,
Antonin, Unipi

Hi @juntiedt,

Yes, it is possible. On the Unipi 1.1 Lite there is a GPIO connector where the necessary GPIOs are available.

A description of the GPIO connector is available in the Unipi 1.1 Lite documentation. The description of the RJ11 connector on the EMO-R8 is directly on the board.

Best regards,
Antonin, Unipi

Hi @juntiedt,

if you flashed Mervis OS to the SD card, SSH must be enabled, as SSH is disabled by default for this OS image. For our other OS images (Node-RED OS, OpenSource OS) SSH is enabled.

If it still doesn't work for you, this article might help you: https://kb.unipi.technology/en:automation:unipi-ssh-connect-hidden

Best regards,
Antonin

Hi @ketolone

This error can occur for several reasons.
The most common are:

Bad network settings (e.g. PC gets IP from DHCP, but controller has static IP set) Wrong username, password, or both

Dobrý den,

zabýval jsem se tímto zapojením více a skutečně jsem odhalil problém s připojením čidla 1W-T-IB(2) k Unipi xG18. Jedná se však o vlastnost obvodu na desce.

S vaším aktuálním zapojením bude nejjednodušší úpravou přepojení vodiče ze svorky +5V na svorku GND. Po přepojení již budou tyto čidla fungovat. Čidla v podlaze Vám předpokládám fungují všechny bez problémů.

Poznámka: Aby bylo možné čidla 1W-T-IB(2) provozovat s xG18, stačí na svorky čidla připojit pouze dva vodiče (1W + GND), k tomu lze využít např. dvě prostřední svorky.
9db450d4-fa58-4e91-8d8a-78d4eedcb9e2-obrazek.png

Přeji hezký den
Antonín z Unipi