UniPi Neuron Series

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  3G/4G for Unipi Neuron S103-G available ?
  • asunc

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  Hello @asunc, absolutely no problem. The Axon is running a debootstraped arm64 Debian with added repository of our packages via which we publish fixes and new versions of our software. Best regards, Martin
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  Energy metering with PRO380-Mod
  • Dealah in Kóma

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  Hi @dealah-in-kóma, there are basically two ways of achieving that. Both of them require connecting the Inepro energy meter via RS485. The difference is in who will be responsible for polling the Modbus data from the device. The Evok way Evok can be configured in a way, that it will poll general Modbus devices. See https://github.com/UniPiTechnology/evok/blob/master/etc/hw_definitions/CUSTOM MODBUS DEVICE.yaml The updated data are available via standard Evok API. The Node-RED way You can poll the Modbus device in Node-RED directly via node-red-contrib-modbus https://www.npmjs.com/package/node-red-contrib-modbus Personally, I would suggest you the option 2, since configuration in Evok is not easy. For configuration you need a Modbus registers map for the given device, that can be found in the documentation from the vendor. Please note, that there are several HW and SW revisions for the device and you need to use the correct documentation. The latest one is here: https://ineprometering.com/wp-content/uploads/2019/04/PRO380-user-manual-V2.18v6.pdf and the Modbus registers map starts from page 27. Best regards, Martin
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  no neuron eeprom data detected after restarting the unit
  • stephane clavel

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  S103-G use GSM/GPRS module to connect to internet
  • roberts_lando

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  The issue was by the incorrect comm speed with the modem. I modified the guide provided by @roberts_lando to use the proper baudrate of 9600 instead of 115200.
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  About the relays
  • Barnabás Králik

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  @barnabás-králik said in About the relays: I'm thinking about using an L403 for controlling a large number of blinds (apart from other building automation duties) with 2 relays per blind motor. Why not go for TCP-IP solution, i use a Kincony kc868-h32, a 32 relay solution, that you can steer the relays true a url link command, works fine for me. There are similar solutions more hobby orientated, and more pro, over Modbus, serial and TCP-IP, there are also 2/4/8/16 solutions out there, so that you can have your relays close by what you wane control, and only have to run a network or serial cable to the relay unit. https://www.youtube.com/watch?v=RVWvRN8yKWs
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  pulse counter with neuron
  • Jan

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  Helo @jos0, the name "holding register" doesn't mean the value is stored in the non-volatile memory. This is just a type of the data store which comes from the Modbus naming convention, which means it can be read and written into, as oppose to the Input register, which can be only read. You can save the current value of the counter register with the saving of the current values to internal flash. This save can be initiated by e.g. setting the coil named "Save current configuration and use on startup" which has to be called on the appropriate group. We do not recommend to do it very often as this will corrupt the internal memory. Try solving the problem in the program instead. Best regards, Martin
• K

  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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  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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  This topic is deleted!
  • 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,,,,,,