Hello @Stoeffel do you have any link or examples?
Posts made by tomas_hora
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RE: Licence activation connection error with Mervis IDE 2.4
Weird... @Petr-Helebrant could you please verify it really depends on the Mervis IDE 2.4.0 and its RunTime? @Martin-Kudláček please assist on this
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RE: History log and SD card lifetime
Hello, the Mervis IDE has been released last week. Until this, the NVRAM has been overwritten with every cycle of the RunTime which depends on the complexity of the executed application...
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RE: Licence activation connection error with Mervis IDE 2.4
@Petr-Helebrant vám you provider the log from the PLC(right click on the PLC)? Also can you ssh to the PLC (you need to enable ssh und the properties tab and Upload configuration) and check directly from the PLC what IP do you actually ping when you run ping db.unipi.technology ?
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RE: History log and SD card lifetime
Hello everyone,
we suggest using SLC or pSLC cards. The differences are explained in this article https://www.unipi.technology/key_feature/what-are-the-differences-between-memory-card-types-and-why-is-it-important-to-know-them-371
Additionally, check the new upcoming Mervis IDE which features an option to configure the period of writing the nvram file (variables used at startup of Mervis RT) to the storage. If your application handles monitoring, you can set the period to 1minute and significantly reduce the amount of data written to the card.
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RE: Digital input 13-14
@Poelie Check configuration of JP2-JP5 since this should be all except the motioned wiring and configuration.
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RE: zigbee integration
@Peli yes, I have heard that the Conbee, zzh and Slaesh's are quite OK, but have not tried it on my own.
Yes, the Node-red can run on the same device as Mervis, you'll just need to find your own way how to install and run it.
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RE: zigbee integration
Dear @Peli as far as I know nothing has been done regarding the Mevis&Zigbee topic. As mentioned previously, the easiest way is to use Modbus Zigbee gateway or some USB Zigbee dongle and implement the SW in a different application (Nodered) and tunnel the data to Mervis using Modbus or Bacnet.
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RE: UNIPISPI spi0.0: SPI transfer failed
@PhilesG Would you please try to update the our kernel modules to the latest version? You can do this by apt update && apt install unipi-kernel-modules or by rewriting the whole OS by a new one from https://kb.unipi.technology/en:files:software:os-images:00-start#axon_generation_os using this guide https://kb.unipi.technology/en:sw:01-mervis:running-on-axon-hidden#flashing_the_os
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RE: Modbus TCP (unipitcp) not working on Neuron with Raspberry OS
@noelvaes Did you reboot after the kernel modules were installed?
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RE: UniPi 1.1 package
The development and support of the Codesys plugins for Unipi products has been discontinued by the developer. Unfortunately, there's not much we can do about it. We asked them to release the package as Open Source... More info at https://kb.unipi.technology/en:sw:03-3rd-party:codesys#codesys_on_unipitechnology_products
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RE: Function block - variable number of inputs
This is not a standard feature of ST or FBD but there is a small hack to achieve this. See the example below. It only works if the input variable is named "in" (the same works for output variable named "out") and the type is array.
FUNCTION InDemo : LINT VAR i : INT; END_VAR VAR_INPUT In : ARRAY[0..63] OF BOOL; END_VAR (*function block's body*) result := 0; FOR i := 0 TO 63 DO // nejaky kod IF In[i] THEN result := result + 1; END_IF; END_FOR; InDemo := result; END_FUNCTION
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RE: UniPi 1.1 and WeIntek interfacing
Hello @wicked,
an alternative way to read data from the is Modbus RTU utilizing the RS485 serial line. Unfortunately, that only available as a standard feature of Neuron and Axon lines, but not in Unipi1. However you can use any USB-RS485 converter which is available on the market.
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RE: Unable to connect to the controller or activate the licence.
Hi @ZigZak,
did everything worked well after the call and email with our Support?
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RE: Neuron S103-G - GPRS modem not working
Hello @tmmke,
the baudrate and other parameters should be configured as decribed in the product information https://www.unipi.technology/unipi-neuron-s103-g-p107?categoryId=8
If you are using the latest Mervis IDE and Mervis OS 2.3.0, you do not need to worry about the setting the GPIO18, which is done automatically.
To send the SMS, you can follow similar tutorial https://kb.unipi.technology/en:sw:01-mervis:sending-sms-hidden
GPRS (internet) connectivity is not supported in Mervis and has to be done manually in the Linux as discussed here https://forum.unipi.technology/topic/463/s103-g-use-gsm-gprs-module-to-connect-to-internet/7
Note: The modem cannot send SMS and provide GPRS connectivity at the same time!
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RE: Configuration Neuron M203 failed
Hello @LubomirMaron,
If you decide to go with Meris, do not mix other solution - the direct switch functionality can be configured in Mervis as well. You see it's disabled because Mervis does not read the actual configuration from the device. It expects that the IDE is the only tool to configure the HW so the latest configuration should be there.
However, the previous configuration of DirectSwitch should not have any affect to Mervis. Are you able to deploy the solution to the PLC? Could you share yoru solution with us?
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RE: 2x PLC - jednou s projektem řízení FVE a jednou pro SCADA projekt
Pro využití všech předností Mervis SCADA je nutné mít PLC připojené na Proxy a nastavené posílání dat do DB. Pokud máte takto PLC, které řídí FVE, již nakonfigurováno, nemusíte do programu vůbec šahat a stačí "pro jistotu" zkopírovat složku projektu a následně otevřít zkopírovaný projekt v Mervis IDE (min. verze 2.3.0) a postupovat dle návodu https://kb.unipi.technology/cs:sw:01-mervis:mervis-scada-project-hidden
Samozřejmě je možné pro SCADA využít i další PLC, které bude fungovat jako prostředník. Ideálně využít interní protokol SSCP po IP, který vám ušetří práci s vytvářením a udržováním Modbus tabulky. Výhoda je, že opravdu nemusíte zasahovat do původního projektu. Návod máme bohužel jen na verzi, kdy jsou obě PLC v jednom projektu viz https://kb.unipi.technology/cs:sw:01-mervis:multiple-unipi-through-sscp-hidden Ale stejně tak je možné vytvořit úplně nový projekt, přiřadit PLC a přidat nový Zdroj dat (pravé kliknutí na položku Systém v Solutuion Exploreru), vybrat zdrojový soubor projektu z prvního PLC (ve složce /bin) a nastavit parametry připojení.
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RE: Relay CMD
Relays on Unipi 1 are ware wired via I2C gpio expansion so you will needsomething a bit more complicated. There are many options:
- linux like https://github.com/Peekayy/mcp230xx
- Python using already made library like https://github.com/adafruit/Adafruit_CircuitPython_MCP230xx
- C/C++ or anything else the same way just like Python
- ...
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RE: SD Card problem
Hello @johni2212
what SD cards are you using? The commonly available SD cards uses MLC technology which is good enough for phones/cameras, but not recommended for automation. We recommend using SLC cards such as https://www.unipi.technology/2gb-industrial-microsd-card-slc-p232?categoryId=33 which are much more reliable and handles the unexpected power outage much better.
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RE: HW definition for PRO1/PRO380 energy meter
@HonzaS Did you make it working?