Last seen: Sep 13, 2025
But why not go for a generic approach, that can be adapted where necessary for manufacturer quirks and irritations? As long as you have a physical mod...
@derek-m - thanks, brilliant clear explanation. Especially as I still have an analogue CRT TV! Looks right and works well in an old leaky listed build...
Not so long ago a likened the hardware and RS-485 to the Morse keypads and telegraph wires in an old telegraph system and modbus to the Morse code sen...
@transparent - it's probably just another case of bad manual language. I thought modbus 'functions' were used to tell it what to do eg 03 means 'read ...
This is why I am now trying to be as generic as possible in what I do, the idea is to have a generic approach that can be used either as it is or with...
This is rather too cryptic for me, how, for example, would I 'solve the "sample and hold" behaviour of the heat pump interface'? I know you are replyi...
I am pretty sure this is the company I had to fire to get my heat pump installed by another installer. They were the LA grant peoples' 'preferred inst...
@filipe - it does sound like an odd design/system. 12kW heat loss, 22 rads, that's give or take 500W on average output for each rad which even at ASHP...
We continue to live in interesting times. Some energy in results in kWh from the last 2 hour periods: PS I see forum clock is still on GMT. Th...
@derek-m - here are the results: 60 x 10A, 240V: all simple spreadsheet calcs give correct answer, 2.4 kWH, python integration methods (np.trapz, sc...
Ah, got it, will do and report back.
Difficult to make that happen, I don't have direct control over the current. I do however have the external heat pump dedicated kWh meter which reads ...
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