Reading the P1 port of a NTA8130 Dutch Smart Meter

[eDsuB]

Hi all, I havent been around much, but my P1 Datalogger has been running for almost a year now at various locations.
See http://sites.google.com/site/nta8130p1smartmeter/ for the visible result.
I am more than happy to supply you with the installable package and how-to instructables.

As my Heat company does not want to connect their Kamstrup Multical 401 to one of the 4 extra registers, I am now in search of a way to get similar data from the Kamstrup Multical 401 via IR. Any help apreciated.

[PietjeNL]

IR requires a code to be send to the meter before it releases the telegram.
I seen no gas usage? Am interested in this, have a smart meter with P1, so if u can send me some info please.

[Bwired]

for the kamstrup the Ircode to send is not known?
i tried several things on my brothers kamstrup, but no luck
I want a smart meter for bwired but i need to be sure that i can get the decimals! and RS232 on P1 (instead of unhandy USB)
If not i keep my existing stuff, no need to upgrade then, my current Ihtron ace3000 give values via IR with no decimals
and I still can use the rfxmeter now, with Kamstrup smart meter I don't know if rfxmeter still works

[PietjeNL]

As far as i know its not changeable in the meter, so probably u need another meter.
To be sure send kamstrup a mail and ask them maybe?
I know that Plugwise can read the p1 and get it into the source, info is here on the forum (pilot enexis smart meter)

[henkb52]

Hi eDsub,

thanks for the information you supplied about the p1 meter reading. I'm trying to connect an arduino to my Iskra ME382 meter but i don't recieve any signal/telegram. The simplest way is to connect by FTDI TTL-232R-5V-WE and use a laptop and retreat to the metercloset? Can you sent the layout of the pins you connected to the rj11 plug?

Thanks in advance

[sirtm]

All,

Got it working after some time wrestling with pin numbers and wire colors.
I used a Keyspan USB to serial converter on my Mac, I also tested other brands of USB to serial converts and they all worked.

Rj 11 - vs - DB9
1 - Request - 4
2 - GND - 5
3 - NC
4 - Data - 2

I used pin 4 (Data Terminal Ready) of the DB9 for the request signal, but you can take any pin that holds 5Volts

Works like a charm, I used an unused Cat5 cable with a length of approximately 10 meters to get the data from the Kamstrup meter to my Mac mini in the study. Now looking for an application to store the data and make it visible.

[hackbox]

@Verkenner,

We just received our meters (Gas and Electricity) and of course I want to get the data out of the P1 as well.
What hardware did you use? Is the fritzbox part of the setup (I have 2 of these 7170's laying around).

[genoenhuis]

I ordered a cable, and it works perfectly Now i want to capture the data in homeseer, anyone success with that?

[sj3fk3]

I ordered a cable, and it works perfectly Now i want to capture the data in homeseer, anyone success with that?

Just wondering.. Where did you order it? And which one exactly?

[genoenhuis]

i ordered this cable http://www.antratek.nl/pdf/DS_TTL232R.pdf, the 5 volt version, then follow the inverting rxd instructions in this thread by 'verkenner'

[ChrisPW]

We hooked the meter to a arduino board with ethernet shield. I programmed the device to parse the information from out meter and send it via HTTP request to a server.

@ pjanssen,

They just installed my new electricity and gas meter. It has a P1-connector.
I tried to hook it to an Arduino, and got data, however not what i expected.
I am trying using the SoftwareSerial library from V1.0. however this is based on 9600 8N1, instead of 7E2.

Is it posible to post the code for the Arduino?

[sirtm]

As far as I know you should use 9600 7E1,
you should expect to see readable data, like:
0-0:96.1.1(205A41424630xxxxxxxxxxxxxxxxxxxxxxxx)
1-0:1.8.1(00091.000*kWh)
1-0:1.8.2(00056.000*kWh)
1-0:2.8.1(00088.000*kWh)
1-0:2.8.2(00151.000*kWh)
0-0:96.14.0(0002)
1-0:1.7.0(0000.36*kW)
1-0:2.7.0(0000.00*kW)
0-0:17.0.0(999*A)
0-0:96.3.10(1)
0-0:96.13.1()
0-0:96.13.0()
0-1:24.1.0(3)

[sj3fk3]

W00H00!!

/XMX5XMXABCD100006030

0-0:96.1.1(4B383257303039373436313737393131)
1-0:1.8.1(000001.118*kWh)
1-0:1.8.2(000011.199*kWh)
1-0:2.8.1(000000.000*kWh)
1-0:2.8.2(000000.000*kWh)
0-0:96.14.0(0001)
1-0:1.7.0(00000.65*kW)
1-0:2.7.0(00000.00*kW)
0-0:17.0.0(999*A)
0-0:96.3.10(1)
0-0:96.13.1()
0-0:96.13.0()
!

[ChrisPW]

Almost there.


/XMX5XMXABCD100012575

0-0:96.1.1(4B383257303039373836393837313131)
1-0:1.8.1(000053.971*kWh)
-1.0052k)1:.1000*W
-2.0000k)
064(0)1:7(008W
02.000*)0:.09*
-9311
0611
-91.)0:.0383131130311)0:..0
-23(2220(C6((122)3
009)0:4.2

Looks like some dataflow problem.
Tring to capture the data with an Arduin directly connected to the smart meter.
Anybody has an idea what is going wrong?

[pjanssen]

I got a PM from pietervanharen but i am not able to replay. Too less posts i guess.

I enabled email notification for this topic but somehow it did not work. (Sorry for that).

@ChrisPW
I used the serial buffer from the arduino because it does not block the board on reading. I have 2 soladin 600 and a smartmeter connected to one arduino doing a interval of ~60 seconds.

@pietervanharen
Could u pm me a mail adres or something than ill send u the information.