Monitor electric consumption, EDF

[Warichet]

Hi,

I would like to monitor my electric consumption. The "new" electronic tellers from EDF provide a 2 wire bus called "Téléinfo". I've found a way to demodulate this signal and get an output in pure ASCII.
The supply is triphased, so 3 ASCII lines.

Any idea about how to integrate this ?
Putting this on the bus doesn't seem to be easy nor a good idea.

Could a HS2 help ?

Thanks
Raymond

[Matthias Schmidt]

How do you "demodulate"?

[Warichet]

How do you "demodulate"?
Like this:
http://bernard.lefrancois.free.fr/schema2.htm (http://bernard.lefrancois.free.fr/schema2.htm)

CAUTION
This stuff might be EDF specific, hence, not re-usable in your case,

although
the
teller
is ....

Siemens
:p

[Matthias Schmidt]

If you have the ASCII data on RS-232, then you can use nearly any RS232-IP-Gateway and collect and visualize your data on HS2.

http://www.moxa.com/product/NPort_5110.htm

[Warichet]

If you have the ASCII data on RS-232, then you can use nearly any RS232-IP-Gateway and collect and visualize your data on HS2.

http://www.moxa.com/product/NPort_5110.htm
Nice stuff !
But in my case: 3 x such boxes (ouch :o )

No other alternative ? (like direct cable input to the HS2).
I'll search for a kind of mini RS232 multiplexer. In a previous life, I've used these devices to connect VT220 do Ethernet, it was called a Terminal Server (Digital, Gandalf etc)

[Matthias Schmidt]

alternative: like direct cable input to the HS2


No way, never. Sorry!

You would need to have THREE HS2 if you would need three MOXA!
:D

[Gaston]

This should be possible with a DECserver. Best is to use one with flash memory so that you avoid booting over the network.

If you give me a few lines of th eoutput of one of the phases I could give it a try as I have a DECserver 700 here.

It should be possible to find a DECserver on ebay eventually. Perhaps not a 700, or not cheap, but some DECserver90M for example. One has to check if it has the necessary functions. The DECserver90L(+) will not work for example.

Cheers,
Gaston

[Warichet]

If you give me a few lines of th eoutput of one of the phases I could give it a try as I have a DECserver 700 here.

Hi Gaston
Thank you for the feedback.
I haven't build the demodulator yet, but to have an idea about the output, have a look at: http://bernard.lefrancois.free.fr/descr1.htm
In summary: ASCII char set, 1200 bits/s, 7 bits/character, parity even, 1 stop bit.

If you want to know more about the téléinfo, look at:
http://bernard.lefrancois.free.fr/teleinfo.htm for the message content.
Cheers
Raymond

[Gaston]

As far as I know the HS needs the complete record in a single TCP or UDP frame. The DECserver is extremely configurable but until now I did not manage to set CTRL/M (CR) as EOR (End of Record" char which would be needed.

On the other side, before I look any further are you sure you really want to do this, as th eonly information is the consumption at the time of the record. This does not allow fo rproper monitoring of the consumption.

I would really consider using a Delta-Meter from ABB instead.

Cheers,
Gaston

[Warichet]

On the other side, before I look any further are you sure you really want to do this, as th eonly information is the consumption at the time of the record.
It allows for max and current values plus indexes. In fact, the same as can be observed at the teller LCD display.
I would really consider using a Delta-Meter from ABB instead.Ah! didn't know about this device (I just looked at the Hager catalogue). Seems to be a different beast as it has its own measurement device (no téléinfo needed).
I asked ABB if this device would work on a 3phased+N EDF network (I don't see why it wouldn't, but ....since I've burned my fingers a couple of times in France....)
I'll keep you posted.
Thanks
Raymond