Problem recognition 1w-Wire
I can not recognize a 1W-Wire temperature sensor.
I connect it directly to the Wire input on the d1 Pi1 board. I step by step through the mervis the procedure ..
I insert a new channel,
I tell him the channel is 1W-Wire.
And then I do the scan to find the sensor.
But when I try to see the word "select channel does not exist in PLC"
What does it mean? What is missing that I should do?
@TriathletC That means that you have to deploy the project where the 1Wire channel is created to the UniPi before you can work with it. By default the UniPi has no idea about the protocols that you might want to use, so you have to tell it first by creating the channel and deploying it to it. Better described in the step by step at chapter 2.10.
Chapter 2.10. In the manual I downloaded from your site does not exist.
@TriathletC There are multiple documentations, you should look for the step by step manual for Mervis - https://files.unipi.technology/s/public?path=%2FSoftware%2FMervis%2FDocumentation#pdfviewer
Also check the tutorials available on youtube: https://www.youtube.com/playlist?list=PL5MC9muFzmGS27IIdGRetn-ugVSn2K1RL
Thank you Thomas, you are always very kind.
I will control everything from scratch.
Listen to the battery to be inserted for RTC Module which model is going to be put on?
I forgot I had a very strange oddness .. I had to reformat the micro SD taken by you and reinstall the Mervis to do a new procedure..there I found various bills..Micro SD does not format and shows 3 different partitions..a Of 60mb that says to be active and not formatted even through windows management .. other two 1gb partitions the one and the remaining memory in an unpartitioned partition..I have ever experienced an anomaly of the kind I have to do ?
How do I reformat the SD card according to you is corrupt and thrown?
The battery used in UniPi 1 is CR2032 almost the most common type so you should have no trouble buying that.
You do not need to worry about it and just use the first partition. The are three partitions and you can see the only one which contains the basic boot info and then there are two Linux partitions which cannot be read in Windows.
But if I have to reformat the schema and let it come back virgin how can I do it?
zorro_66 last edited by
Page 26 of the manual
Set the PLC to Commissioning mode –Right click on the PLC icon in Solution Explorer and choose PLC Operation→ Commissioning mode
Goodbye to everyone .. I finally finally managed to recognize the 1-Wire basic temperature sensor of the PLC .. it works properly ..
But now I need a help ..
I also bought two sensors of the UNICA Wire Sensor (temperature-humidity and light sensor) all in one.
The problem is how to connect it .. I have two photos to let you know better.
Virtually I connected to terminal 5 i + 5V, to 6 the DATA, 7 empty, 8 GND.
I connected it to the Wire port I tried to make the recognition but with a negative result .. I also attach the screen of how I inserted the device in the Mervis..HO performed the same procedure for the 1-Wire sensor ..
@TriathletC Please check the pin map of the RJ45: https://www.unipi.technology/hardware_documentation/1-wire-network-46
The wiring seems OK, but you have to wire at also both data lines to the sensor, or you break the topology.
Also, do not strip the end of cables when you make the RJ45 connector. The connector cuts the plastic foil of the cable when you press it with the crimping tool. If you strip the cables before, the cables can touch each other which could cause shortcut....
So from what you tell me I have to bring another thread and jump to the DQ. right?
Thanks Thoma ... you were right I wore everything as you said and it works correctly .. so I need an info .. how do I parameterize the UR%?
@TriathletC You are welcome... But now I do not understand. Could you describe it better please?
I do not know how to configure correctly so that I can read the relative uimness on the mervis I attach to the screens.
@TriathletC Try to use FUPLA block called 'unica_u1wt'.
Yes, that it should work.