KNX/EIB Weather Station

[MikeMelga]

Hi.

I've just installed a weather station.
I've already connected two 4...20ma sensors (brightness and temperature) but I have some doubts about the rain and wind sensors.

The wind sensor I have only has a 2-pin output. I guess I have to get one with a 4...20ma or 0-10v output, right?

The rain sensor I have has a 24v input for power and a 2-pin contact that is shorted when it rains. Can I connect this to the weather station? Or the rain sensor also needs to have special output? Well....I can always connect this to a binary input in that case.

Thanks.

[2ndsky]

Hi,

it'll be much easier for us to help you if you provide the vendor and the model of your weather station

[MikeMelga]

2ndsky,

Hehehe. I completely forgot.

My Weather Station is a Merten 682991:
http://www.merten.de/uploads/tx_seqd...terstation.pdf

This is the rain sensor:
http://www.produktinfo.conrad.com/da..._I_GEH_24V.pdf

This is the Wind Sensor:
Siemens 5WG1 258-7AB02 AC15-24V Wind sensor
http://descargas.futurasmus-knxgroup...ab___bma_e.pdf


Thanks for the reply

[2ndsky]

You could connect the rain sensor to a normal binary input for the detection of rain/snow instead of the weather station. I have no idea if you can use your wind sensor with your station.

[MikeMelga]

Thanks

I guess I'll connect it and see what happens

[kropfm]

well, the weather station comes with one digital input:

Sensoreingänge

Anzahl: 4x analog, 1x digital

And there is a communication object for rain and that's a 1 bit value, so I suppose there's a way to use a rain sensor with a digital output.

Niederschlag Kombisensor 1 Bit 1.001 K,Ü

The documentation of your wind sensor is not very coherent.

[MikeMelga]

kropfm,

Thanks. I'll have to check that digital input.

About the wind sensor... all the documentation I've found online isn't very helpful:

http://descargas.futurasmus-knxgroup...73ab_1_tpi.pdf

http://support.automation.siemens.co...73ab_1_bma.pdf

What gives me a little hope is that I've found 2 KNX related sites with info on this sensor:

KNXshop - ***DISCONTINUED*** SIEMENS S258/02 Wind rotor (heated) (5WG1 258-7AB02) from SIEMENS

http://www.eibmarkt.com/Files/Datenblatt/N062244_03.pdf


Thanks again.

[MikeMelga]

Just an update on this:

I've connected the rain sensor to a binary input.
I've connected the wind sensor but I can't get any value from it.

Now I have a third problem

My temperature sensor is not giving any values. I suspect I connected it wrong.
What is the proper way of connecting a 4...20ma sensor to a weather station?

The sensor only has 2 pins: + and -
It should connected in a loop.

I've connected the + to the 24v + and the - to the Kx input of the weather station. Do I need to link the Kx to the - output?

Thanks.