Good morning lukas, perfect. That sounds alright. Do you have an overview or tests for this configuration? I would like to change some parts of the configuration automatically, e.g., ModbusMaster settings and would like to be sure before loading that on the revpi that the configuration is valid. Bes...

Good morning Dirk and lukas, perfect. That is just what we want. Is there a way of knowing whether writing to a device actually works? The device I am having does not have LEDs or other suitable things so except for directly reading from it through the ModbusMaster I have no way of knowing whether t...

Dear all, we use a RevPiCore 3+ with a USB-to-RS485 adapter. I am using the adapter together with the Modbus RTU Master in piCtory to read values from several devices. We had the case in which a loss of power due to a connected ssd or the manual reading of a modbus device causes the Modbus RTU Maste...

Good morning Dirk,
thank you
Does this offset in register address apply to writing to the registers, too?
Best, Robert

I just realized I can daisy chain my two controllers, so I currently just need one USB-to-RS485 adapter. Potentially this way I also only need one serial gateway.

Hi Dirk,
I guess the solution was that the manufacturer starts the address at 0. You have written that in the How to Use ... tutorial. Unless you find something in the config I deem this post as answered.
Best, Robert

Hi Dirk, option b) is what we already build. Our problems with that is that: 1) we sometimes lose connection because the USB hub fails/disconnects 2) Reading those serials commands is very slow and blocks everything else. So if we gain speed and do not have to take care of the connection then the ha...

Hi Dirk,
I used your youtube tutorial to setup the Modbus RTU Master.
I also attached the config.rsc as zip. Is the file correct?
Best, Robert

Dear all, I use a RevPiCore 3+ with a USB-2-RS485 adapter to read modbus signals from a sensor. According to the sensors manufacturer, the registers I want to read are 8 and 9. If I set these up in the virtual Modbus RTU Master in piCtory and read them with piTest I saw mainly zeros. Only when I sta...

Dear all, I have browsed through this forum and some of the documentation on the Serial Gateway, e.g.: "https://www.kunbus.com/serial-rx-gateway-module.html", and the Scripter, e.g.: "https://www.kunbus.com/files/media/scripter/DO0003R03-KUNBUS-Scripter-UM-EN.pdf". In our applica...