Hi I got this system air ventilation now and I would like to get it hooked up to the openhab. It uses modbus protocol, and to be honest I have never dealt with modbus before. So I figure out I need to set this in configuaration.cfg modbus:serial.slave1.connection=/dev/ttyUSB0 modbus:tcp.slave1.le…

[image] gskjold: FTDI USB-RS485-PCBA Hi, I purchased FTDI USB-RS485-PCBA and I have different pins for A ad B, so do you recommend that solid blue goes to B and strip blue and white goes to A? I will try to connect this today or probably over the weekend…so Gunnar are you sure that this wires…

Hi, now I am confused, I finally bought FTDI USB and made modbus binding and don’t have any modbus.cfg file, so must I first create that file or is something wrong with modbus binding??

I guess it´s the modbus 2.4 binding.. Then you need a thing file, not a cfg file.

I have modbus binding 2.5.0.M1, so How then I should put all the register in thing file? Like above did Gunnar

Can you capture picture of poller and thing to see how we can set modbus in binding v2? Some examples please please

Look at this thread.. It may give you a hint. [image] How to connect Nilan CTS602 modbus interface Tutorials & Examples This is a full setup and how to connecting a Nilan ventilation or heatpump using the Nilan CTS602 modbus interface to openhab 2.4 using a RS4…

Gunnar please copy your things file with binding v2 and item to see difference with new binding

Sorry, I’ve been a bit busy the last weeks. The 2x modbus configuration for a complete villavent setup is huge. I used hours to set up mine even when I knew how it was done. There is no way I’ll cover all of it, but here is a partial fan config. First a modbus serial slave: [m1] Then a poller fo…

Gunnar thx, I will try. Copy code from .items for Villavent and .sitemap and rules

So I am trying to do the same as you Gunnar, migrating to the modbus 2.5 binding. However I can not get it to work. I deleted the old modbus.cfg I removed all {.*} in the villaVent.items file I followed your description , but added a final step where I linked the dataThing Number channel to the N…

MODBUS and System air

Add-ons Bindings

Kim_Andersen (Kim Andersen) April 17, 2019, 8:07pm 100

Look at this thread.. It may give you a hint.