Apologies in advance for the newbie question. I’m reasonably confident with software, but I’m not a hardware person.
I recently moved into a house with an LG Therma V ASHP - my first heat pump. I have a Sontex Supercal 531 heat meter.
To monitor my ASHP, I’ve bought an EmonTx to sit in our electrical box and monitor both the main meter and the ASHP AC, and an EmonBase to monitor the ASHP itself. To collect data from the heat meter, I’ve bought the M-Bus to UART converter.
The documentation on how to set up all this brilliant and really easy to follow, but I’m stuck on what is probably a really basic point: what kind of cable or wire do I use to connect the M-Bus to UART converter to the heat meter?
The terminal board in the heat meter has two terminals for M-Bus - so do I connect both?
And finally, the guide doesn’t specify which of the three terminals on the convert to connect?
Any support gratefully received! Thank you