Mervis

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  Configuration Neuron M203 failed
  • LubomirMaron  

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  @Martin-Kudláček thanks for reply, but didn't help :(. I think that you are right that PLC is unreachable for MERVIS. But I can attach PLC normally, like it is in manual. Is there som way to restart PLC to deafult/factory settings, or something like that ?
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  Tlačítko na DI spolehlivě nereaguje
  • linex  

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  Dobrý den @linex, na co nejspíš narážíte je pomalost vyčítaných hodnot. Ta souvisí s funkcí autogen. Zkuste si prosím projít tento tutorial: https://kb.unipi.technology/cs:sw:01-mervis:autogen-hidden S pozdravem, Martin Kudláček
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  Function block - variable number of inputs
  function block • • tmmke  

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  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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  FBD function error
  • Martin Trojan  

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  It's working, thanks!
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  2x PLC - jednou s projektem řízení FVE a jednou pro SCADA projekt
  • Beny44  

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  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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  Analog output 0-10V
  • matyi  

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  Hey again, I could solve the problem. I should have read the docs in more detail: "The register expects values in range of 0 – 4000 which equals the range of 0 – 10 V." 👌 Sorry for spamming the forum here... /Matthias
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  measuring Temperature with AI
  • matyi  

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  Solved by: The pre K value was set to 0.1 as described in the documentation. I set it back to 1. With one every measurement is working properly. Question: Could you explain in more detail how the pre and post K and Q values are working. I'm a bit confused. Obviously its just a matter of scaling since for Pt1000 the pre K factor need to be set to 0.1. So for Pt500 the pre K factor should be set to 0.5? Am I correct?
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  This topic is deleted!
  • matyi  

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  M525 stopped working
  • pascal37  

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  Hi @martin_triska, Yes, that sums up the situation well, so I'll write to support@unipi.technology for replacement request. Many thanks, Pascal
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  Optimizing program for minimum real cycle time, lowest possible input lag
  • r3sist  

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  For the record - @r3sist discovered that the corrupted SD card has been causing the delays. Everything in the program has been configured correctly.
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  1-wire sensor addressing: part of the configuration, or the solution?
  • clueless  

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  Hello @clueless, the 1-Wire addresses are uploaded to the PLC with Deploy od the solution.
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  This topic is deleted!
  • clueless  

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  Run led blink
  • daho  

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  Update: I have install it in the fusebox now and there is diffrent powersource. And now it is just Run 3 blinking. And cant get the modul 3 to work. Before works all of them after a reboot but stops and blinks after like 5 min.
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  Debug mode not showing variable values in program and function blocks
  • Matt  

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  The controller was not selected. It's working now. Thank you for pointing that out.
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  Version control for Mervis projects
  • Jakub Sykora  

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  Here's what I'm using in my .gitignore: *.bin bin *.exs *.zip */HmiResources */HMI-*
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  Pt1000 - NeuronL503 - Mervis
  • OlivierP  

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  @OlivierP Thanks for the feedback!
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  Modbus RTU - NeuronL503 - Mervis
  • OlivierP  

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  Hi @OlivierP , you can change the byte order via MultiByte Order:
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  Byte Array to Real
  • Neuron_Flo  

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  Hello @Neuron_Flo, we tried different approaches, but non of them gave the correct result. There doesn't seem to be a native way how to transform this data in ST code. It looks like you need to resort to the classic calculation according to: https://en.wikipedia.org/wiki/Single-precision_floating-point_format Martin
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  Push button relay toggle
  neuron mervis switch • • Jan Teunis  

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  Hello @Giamba , i was trying to use your dimmer program to to get a 0-10v output on my M203. I'm pretty sure i excactly copied your programm but not the results as you descripe. First of all, it will anly switch between 0 an 10V. no dimming function. Second problem is that i cannot connect the eq_0 / in1 to the BD30 counter to the br. Wont accept. maybe i made a misgtake but i cannot get it. Is it also possible to send me the parameters you use for the components in your programm? Many regards John-paul
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  only 1 task ?!
  • CKB  

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  Hi @CKB, the functionality has changed, and now you cannot define more than one task. But you can define more programs to run inside a single task. Best regards, Martin