Indrek Ardel

I meant to write during the weekend, but was occupied with other things. The picture is good enough with the descriptions you provided, thank you for that. Vacation and home...

Thank you for the input, definitely a welcome observation, which makes sense. As for your question whether the USB dongle and DLG can communicate to ECL over the same bus...

You probably didn't do anything wrong as far as connections go. Modbus RTU is a binary protocol, so it doesn't output anything human readable to the serial terminal. So it...

Check your wiring, could be that your A and B are swapped on the USB adapter. Red should go to B and brown should go to A. Guessing the backside...

It actually looks correct. One thing you need to mind is that when pasting commands there, you need to know if your frame is a request or a response and...

It depends on how tolerant or considerate the DLG is when it comes to taking turns with other devices on the bus. The very next request/response is for S1 reading...

I'm not sure what is meant exactly by Physical/Logical representation here, but I think the way it is documented in README is all based on the "Physical" value. But indeed,...

It looks like my understanding of modbus was incorrect and wikipedia was quite clear about pointing it out: > On Modbus RTU, Modbus ASCII and Modbus Plus (which are all...

I was looking at libaries like pymodbus so I could rely on their parsing, but none of them really support sniffing the bus and only deal with the easy part...

Success!