UniPi Neuron Series

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  Testing DI through DO?
  • knebb

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  Hi @knebb, definitely not. The DOs are NPN type (open collector). You can read more about how to read the NPN outputs with digital inputs here: https://forum.unipi.technology/topic/712/neuron-12v-digital-input/2 Best regards, Martin
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  About the relays
  • Barnabás Králik

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  Hi @barnabás-králik, Relays are this one: https://www.tme.eu/en/details/ftr-f3aa024e-ha/miniature-electromagnetic-relays/fujitsu/ yes, relays are difficult to replace and replacing them by yourself means losing the warranty there is no feedback about the physical state, e.g. via secondary terminals Best regards, Martin
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  Analog Output- which regsiter to use in modbus?
  • knebb

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  Hi @knebb, there are two approaches and you figured out both of them: Do the calculation and write to register 2 Write a value to the register 3000. The value has to be 32bit signed integer. I checked the documentation and I think there is a mistake with the registers 3000, 3001 and 3002. Those should be 3000, 3002 and 3004 since the 32bit values need two consecutive registers. I will check what is in the firmware and let you know! Best regards, Martin
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  How to Read M103 Modbus Doc?
  • knebb

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  @ntd Perfect! Got it finally. I mixed up modbus_read_bits and modbus_read_register. Now working like a charm! Thanks a lot! /KNEBB
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  Internal ModBUS problem
  • ntd

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  @ntd said in Internal ModBUS problem: I will update this thread when I will have some news. Well, I installed the new SD card a couple of months ago and received no complaints ever since, so I suppose this update solved the problem. @Martin-Kudláček: thanks again for your support .
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  • jingpusensor

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  M503 AO Problem
  • RaedHammad

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  Hello @raedhammad, this looks like a HW issue. Are you sure you didn't draw more than 20mA from the analog output? That would certainly destroy it. Best regards, Martin Kudlacek
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  Nastavení Modbus serial pro elektroměr EM 340
  • Beny44

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  @martin-kudláček Právě že ... dint mám nastaven, číslo prostě mínus neukáže. A pokud jde o sekci 2.2 ano tak lze vyčíst celkovou spotřebu v kWh, na to jsou dvě adresy, ale já potřebuji aktuální výkon s indentifikací směru, tedy změna znamínka. No už to ale vyčítám rovnou z měniče přes Modbus TCP, kde se znamínko mění. Regulace na proporcionální relé funguje výborně. Jen mě ale teď někdo hacknul web server, ale o tom v jiném vlákně ...
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  Neuron with 6 relays like unip1.1 lite?
  • juntiedt

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  Hi @juntiedt, there is a M103 with 8 relays.
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  Firmware upgrade on L503
  • Jurij

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  Hello @origami, the UniPi 1.1 doesn't need any firmware. To use the newest set of tools, do full update & upgrade of the operating system. Best regards, Martin
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  Example application neuron - evok for home automation
  • Martijn Hemeryck

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  Hi Martijn, I am also trying to read analog and digital ports on unipi to collect sensor data from few sensors. I was also just wondering if we can do it in the same way like we do it on raspberry pi using a python script. I can see that even you wanted to do something like that. I have also gone through evok api but they seem to be specific models. I dont think using that we can directly read analog and digital I/Os on unipi. Can you please suggest any ideas if you were successful doing that? Thanks, Jitu
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  RFID modul přes RS485
  • SandyV

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  Mockrát děkuji za odpověď.
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  Cant detect temperature sensor via 1-wire
  • Josef

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  Ouu.. thank you.... my fault... Problem was with a connector... I mixed RJ11 connector with RJ45... Anyway.. Thank you :)
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  M503 maximum voltage AInput
  • PR-Reger

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  Hello @PR-Reger, Generally speaking that is always the safer approach, if possible. Regards, Tomas
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  PWM on Neuron M503
  • francoisd

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  @francoisd You can do it by hand or use .csv to import Modbus device definition - https://kb.mervis.info/doku.php/en:mervis-ide:30-communication-protocols:30-modbus?s[]=modbus&s[]=csv I've created the device definition for you, so you can simply import it by right clicink on the modbus TCP channel and select Import device definition. The .csv file should contain: StationNumber,Name,Element,Count,Function,Writable,StType,ByteOrder,K,Q,X1,Y1,X2,Y2 1,PWM_prescale,1018,1,HoldingRegister,1,Int,12,,,,,, 1,PWM_cycle,1019,1,HoldingRegister,1,Int,12,,,,,,
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  Neuron L403
  • RaedHammad

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  dear @raedhammad, people should definitely know what they are going to face, but blaming our solution without knowing what went wrong... As stated previously, please continue in the email communication so we have just one point where to talk so we can discuss all your issues there. We can then past the conversation here if other might want to read through.
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  Direct switch problém
  • jiriletak

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  @jiriletak Dobrý den, LED světla obecně se chovají kvůli integrovanému zroji tak, že špičkový proud při sepnutí může přesahova ti třicetinásobek proudu při běžném odběru. Rozhodně nedoporučujeme tedy takovétho zátěže připojovat přímo na RO našich jenotek a raději to řešit pomocí spínacích prvků k tomu určených. Naše RO jsou míněna jen jako ovládací, pro další silové spínací prvky.
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  var mountpoint on usb stick
  • ludwigj

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  Hi Martin Thank you for quick response. Jiri
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  Same RO at same time
  • arolli

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  Hi @arolli, yes, you can start all 4 relays at the same time. Martin
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  • crushermachine2

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