And as another new Sharky 775 owner (thanks to those already using, and reporting on their implementation), my meter came with address 76 already selected.
[BTW, I misread Mick’s message above as saying the parameter “Primary Address” was set to the value “1”, and I was about to message asking how that related to address being 25. Doh!
He is of course actually saying the parameter “Primary Address 1” has a setting of 25, as will appear in menu rotation 3. Becomes more sensible when you appreciate the M-bus concept of a device having two addresses on which it will respond. I know that now.]
Another Sharky 775 snippet for folks that get stuck.
The mbus connections only work one way around. You can’t flip these as you won’t get any data.
I found this after having it all working on my desk, then having it stop reading when I recabled it when putting it in into the final destination. A bit of head scratching and then flipping the mbus connections at one end sorted that.
I’ve always used _Power. Like you say it matches the display. I’ve no idea what Heat_calc could be and the original comms data sheet I linked to ages ago above has gone dead link.