Modbus issues

I would recommend you eliminate (Or comment out) the switch from your config.

Why is the slider reading 7?

Try:


input_number:
  slider1:
    name: Slider
    min: 0
    max: 1
    step: 1

It is 7, because it is one of rare modes on the pump.
Otherwise I can’t be sure if mode 1 or 2 are initiated by me or by pump controller automation.

For this job only 0 or 1 (integers) are relavent though…it will/may error if you send it anything but a value of 0 or 1 I believe?

PS: I would restart your heatpump as well to try to get rid of the bad data on that sensor if possible?

Your sensor will give you the feedback you require and the input_number will stay as you last set it…and resume that value on restart of HA as there is no initial value (in my suggested config).


values don’t correlate ( I changed the conf as requested).
I believe that there is something other going on as many sensors show values out from their range.
I have pymodbus debugging enabled, if this gives any insight.

Hey…your looking at
Operating Mode 26 40027

I was thinking you were talking about
Operating Mode (DHW) 27 40028

My mistake …sorry but that has modes 0-11?

It was the 27 that I was focussed on in your image sorry
PS: BUT Operating Mode 26 40027 is not present in your device right?

27 was just an example that demonstrated that there might be larger problem in hand as it went beyond the scope.

Lets focus on 1 and only 1 entity and get that working right?

Mode 26 exists and I’m trying to get it working- unsuccessfully.

ok.
This one is the most critical for me at the moment:

“I’m having FTC5 unit, which rules out the option, that my device just don’t support the features that I require.”

In the table I’m reading for FTC5 unit that has no tick?

ouh, I have missed that…

Therein lies one of your problems.

This gives me a whole new and larger problem.
I must find a way to tell the pump when to heat water and when to heat the house.
And be able to block both modes when electricity price is high.

To do that may be difficult with the device you have it seems…maybe contact the manufacturer for support…BUT I noticed your device hooks up to the CN105 connector? It may work with this setup? It uses the CN105 connector for data…may be compatible but may need some hacking?

Once built and connected it uses MQTT for control and monitoring.

In fact I have one working read here:

OK. I knew that there are alternatives, but hoped that as I have the original Modbus module- I could do it without hacking. Now I’m forced to investigate that option. Thanks for all the help!

I wonder if it works with Air-to-Water systems as well or is it only for Air-to-Air models.

Only way to check is have a crack and as the cost is quite low not too much to be lost really…your time mostly. That project is very mature and reliable and has some very helpful people.

Scan this post https://github.com/SwiCago/HeatPump/issues/13 for your model number I reckon

Maybe its an unfortunate case that your device is not suited to this project though…ask the supplier for some advice I reckon.