17.08.2018, 17:25
Hi,
I see that many already have integrated their Systemair ventilation system thru RS-485, I’m trying to do the same, but I’m having difficulties connecting. I’m using the RJ45 plug at the top of the ventilation unit connected to the first RS-485 port at the LM. I’m running RTU scan and can’t find anything. In the Modbus manual supplied by Systemair, the drawing shows that A = pin 5 and B = pin 4. I have tried this and switching A and B. Does anyone have an idea what I’m doing wrong?
Manual:
https://www.systemair.com/globalassets/d.../40903.pdf
BR Even Sundgot.
I see that many already have integrated their Systemair ventilation system thru RS-485, I’m trying to do the same, but I’m having difficulties connecting. I’m using the RJ45 plug at the top of the ventilation unit connected to the first RS-485 port at the LM. I’m running RTU scan and can’t find anything. In the Modbus manual supplied by Systemair, the drawing shows that A = pin 5 and B = pin 4. I have tried this and switching A and B. Does anyone have an idea what I’m doing wrong?
Manual:
https://www.systemair.com/globalassets/d.../40903.pdf
BR Even Sundgot.