KNX/EIB [Newbie] How to read temperatures?

[MikeMelga]

Hi.

I am programming my KNX installation and I am beginning to work with temperatures.
In most case I had no problem: temperature objects were available.
However I have 3 rooms with underfloor heating that I've installed a temperature probe (Gira 1493 00) connected to a Theben TA4 binary input/push button module.

The problem is that I can't read any temperature from the device. I always get 0. I've already set the device to switch/push button with temperature value as the object type (2-byte).

What am I doing wrong? Shouldn't I be able to read the temperature from the 'Channel x temperature' object?

Thanks.

Regards,
Mike

[lobo]

... connected to a Theben TA4 binary input/push button module.

Dear Mike,

maybe I don't understand every detail, but you didn't expect a binary input which is connected to a NTC thermal probe to give analoge values ... did you?

Cheers,

Stefan

[MikeMelga]

lobo,

Thanks for your reply.
I guess I did (stupidly)

So my question now is... how can I read them? What should I connect them to to get their temperature on the bus?

Thanks.

[lobo]

One suggestion would be a Zennio Quad ... this should be working (but please double-check).

Regards,

Stefan

[MikeMelga]

Forgive me my ignorance....but what is the point of having these temperature option on these devices? What temperature does the 'Channel x Temperature" should send?

I also have some Hager and ABB binary inputs with the same temperature options. What for?

Thanks

[TinoS]

Dear Mike,

you can use this function to send e.g. setpoint values to external temperature controller. In the parameter setting you can define which value should be send on raising / falling edge.

Best regards,
Tino

[MikeMelga]

Tinos,

Thanks.

Is there anything cheaper than the Zennio Quad? Something with only 1 analog input?