set temperature

[fabio....@gmail.com]

Hi, how can I set a temperature with knxtool? with the ETS software I can set temperature in degree and that will be written to the device. 

thanks

Fabio

[trun...@bluewin.ch]

Hi, you can use knxtool groupswrite and set the temperature as hex value. First you need to convert your temperature value into the correct datatype value.

Othmar

[fabio....@gmail.com]

Hi Othmar, thanks for your answer. Could you please give more details about how to convert temp into hex value ?

thanks again

Fabio

[trun...@bluewin.ch]

You need to convert the value into the right DPT format, 9.001 I guess. Long ago I had some code ready to do this but cannot find it anymore. The hex value is stored along this formula (from KNX datapoint definition)

[fabio....@gmail.com]

Hi,

I have a function that convert the temp into Hex and have it tested reading temp from address. However when I attempt to write to the address it does not work. I used knxtool write ip: 3/1/28 0EA9 and tried also with knxtool groupswrite ip: 3/1/28 0CE2

any idea what I doing wrong?

thanks

[Matthias Urlichs]

On 04.12.20 21:43, fabio....@gmail.com wrote:
> any idea what I doing wrong?

Use "groupwrite". You're not writing a small value here.

Separate bytes with spaces.

--

-- Matthias Urlichs

[fabio....@gmail.com]

thanks a lot. It works!