Posts made by AVsetula

Hi Tad,

When making a complaint or repair, follow the complaint procedure: https://www.unipi.technology/return

In this case, however, it may not be a faulty HW, but only an inappropriate output setting:

• The digital outputs on the Unipi units also enable the so-called PWM mode, where the output is controlled in a different way than during normal on / off switching.
• Another function that could affect the outputs in this way is the so-called DirectSwitch function.

If you work in Mervis SW, you can upload the default configuration simply by creating a new project in the Mervis IDE, assigning a PLC and uploading the Unipi module configuration.

For other SW solutions, I recommend checking the values in the Modbus registers.

• To check that PWM is off, check registers 16 to 19, all of which should contain a value of 0.
• To check that the DirectSwitch function is turned off, check register 1014, it should also contain the value 0.

Hi Gabriel,

You can find most of the information in the articles on inputs and outputs in the products section on our KnowledgeBase.

Below you will find the answers to your questions:

What are the use cases of these relays? Is it dangerous to use these common relays with outputs having different power supplies?

• It depends on the specific circuit connection, but in most cases such a connection is undesirable.

Finally, is it recommended for safety reason to use a different power source between the unipi power supply and the dry contact equipment (in input) ?

• Yes

Dobrý den,

váš předchozí příspěvek prověřím a případně doplním.

Na aktuální otázku je odpověď: ANO, lze funce I/O nastavit i jinak
Pro nastavení u rozšiřujících modulů Unipi můžete použít např. program mbpoll v linuxu (po připojení přes SSH) a komunikovat se zařízením přes modbus, kde si jednotlivé funkce nastavíte dle modbus tabulky.

Přeji hezký den
Antonín

Dobrý den,

licence je skutečně vyžadována až od verze IDE 2.3.0. Ve verzi IDE 2.2.0 se sice zobrazí stav "Nezalicencováno", ale jedná se jen o přípravu.

Doporučuji přejít na nejnovější verzi IDE 2.4.1, která má lépe řešenu práci s úložištěm a nedochází tak při správném nastavení k upisování SD karet, nebo eMMC úložiště (u vyšších řad PLC).

Licenci Mervis je možné zakoupit na našem e-shopu.

Transformaci DS2408_sh_trans nahraďte za lib.Unipi.ds2408_sh_trans. Jsou totožné.

Přeji hezký den,
Antonín

Hello Fabio,

You can select the EMO-R8 module to expand the Unipi 1.1 board with another 8 relays. This module communicates via I2C, as does the relay on the Unipi 1.1 board. Documentation for this module can be found on our KnowledgeBase.

For communication, you can choose either direct control via I2C, or use our EVOK API, which allows you to control, for example, via the REST API or WebSocket.

EMO-R8 connection and EVOK configuration:

You must first set the address jumpers on the EMO-R8 and connect to Unipi 1.1 using an I2C cable. Then connect the power supplies, connect to the Unipi unit via SSH and edit the /etc/evoc.conf file. Then restart EVOK and the outputs on the EMO-R8 will be available.

• In the /etc/evok.conf file, find the lines related to EMO-R8 and uncomment them (remove the semicolons at the beginning of the lines). Open file with administrator privileges (sudo).
  • sudo mc -e /etc/evok.conf
• Then restart EVOK.
  • sudo systemctl restart evok.service

Best regards,
Antonin

Hello Vesa,

Only some Patron ports are available using the deprecated /dev/extcomm/Y/X notation.
I recommend using the ports from the table in this article: Patron serial port mapping

To verify communication with all our Modbus devices, I recommend asking the holding register 1003, which is available for all Modbus devices Unipi and whith contains a unique identifier, according to which the device can also be recognized.

Best regards,
Antonin

Dobrý den,

email k nám bohužel nedorazil.
Doporučuji projekt neposílat v příloze emailu, ale přes libovolnou "úschovnu" a do emailu vložte pouze odkaz ke stažení.

Přeji hezký den,
Antonín

Dobrý den @Nessie,

pokud jsem Váš dotaz pochopil správně, bavíte se o SW platformě Mervis. To co popisujete může znamenat, že v HMI máte namapovány proměnné, které ale programově nastavuje něco jiného (funkční blok, jiná proměnná, atd.).

Typickým a jednoznačným příkladem je např. propojení DI_1.01 s DO_1.01 v programu a namapování DO_1.01 v HMI. Pokud se budete snažit změnit hodnotu DO z HMI, bude se stále vracet na původní stav, protože je s každým cyklem programu přepisována hodnotou DI.

Pokud se Vám nepodaří chybu objevit, pošlete celý projekt v archivu spolu s krátkým popisem konkrétních problémů k nám na email: support@unipi.technology

Přeji hezký den,
Antonín

Thank you for your contribution!

Best regards
Unipi team

Hello,

Currently, the best way is to find out the availability of the Internet connection in the OS and then write this information to the ModbusTCP server. You can create a ModbusTCP server directly in the OS as a separate program or define it in Mervis.

The subsequent logic for switching the relay on/off is already simple.

Best regards,
Antonin

Hello,

Unfortunately, so far we only have Neuron S103 with RPi4. This is due to higher cooling requirements and due to the different layout of connectors on RPi4.

The difference in communication speed between the variant in one box and the variant with Extension is not so important for most applications and it always depends on the optimization (number of read registers, reading period, etc.).

In general, you can assume that the speed for internal communication is 115200 bps (and higher) and the communication speed via RS485 is according to the settings, but 19200 bps is used by default due to the excellent ratio between speed and stability.

Best regards,
Antonin

Hello,

We always (even for Unipi 1.1) recommend using a secondary external relay and using the relay on the unit only as a signal relay.

All available technical parameters for relays on Unipi 1.1 can be found in this article, for Unipi Neuron in this article and for Unipi Extensions in this article.

It is better to deal with the details of the electrical installation with an installation or inspection technician according to the legislation of your country.

Best regards,
Antonin

Hello,

The I2C port is permanently connected to 5V and cannot be changed.
For the UART port, it is possible to change between 5V and 3.3V using a jumper (JP6).

Best regards,
Antonin

Hello,

The production of Unipi Axon units was discontinued. The Axon line was replaced by the next generation named Unipi Patron.

Best regards,
Antonin

Hello @L-E-F

You must create an hmi template for the function block, or for the program. Then insert "Pop-up" in the hmi template for the local web server or SCADA, where a function block, or program can be selected as a variable. Then just select the desired small template (you can have more than one ready for one block, or program).

See the attached screenshots for examples.

Antonín Všetula,
Unipi technician

Hi @L-E-F

The alarm status on HMI is changed automatically according to block BD56.

1. In the default quiet state, nothing can be affected.
2. If an alarm is reported, it can be acknowledged.
3. After the alarm ends, it can be reset in the memory to the state in point 1.

The solution to your second query is simple: For a flashing state, use a GIF image as the mapped state.

Antonín Všetula,
Unipi technician

Hello @emomiilol

What software do you use on the unit?
This is probably a delay caused by the software and conversion of values in combination with communication with the chip on the Unipi board. In addition, both delay factors are manifested twice:

input signal -> communication -> conversion -> program -> conversion -> communication -> output signal

Antonín Všetula,
Unipi technician

Hi,

License request code can be used only once to obtain a license. If you use the request code for an account to which you later lose access, the license cannot be renewed and you must purchase a new license request to generate a new license. We therefore recommend using request codes only on the main account in the Unipi portal.

(more about the license request: https://kb.unipi.technology/en:sw:01-mervis:getting-mervis-licence-hidden)

Have a nice day
Regards

Antonín Všetula, technican

Hi,

The best way to calibrate the AI on the Unipi 1.1 is to turn off the transformation for the AI, connect a voltage source with an output of exactly 10 VDC and look at the value on the AI in the Mervis IDE. Remember this value and then insert it as parameter X2 in the two-point linear transformation.

Set parameter Y2 to 10 if you want to get the voltage value directly, or set to 100 if you want to get the percentage value [%].

Set both parameters X1 and Y1 to 0.

In the attached picture you can be inspired by the settings for my Unipi 1.1.

Have a nice day
Regards

Antonín Všetula,
Technican