Functionality with Kamstrup DK-8660 electrical meter

[Bigert]

I was going to start with a similar project as my first project in many years, so I started with a test connection with Arduino to see what I got out of the serial port. I use a HAN port with RJ12 and inverts the signal.

There is a lot of conflicting information about port speed, but I got 2400 baud to work. I expected a list corresponding to your example list, but got the following according to appendix image (char dump) and list below (int dump).

Am I lost or may the power network owner have set the wrong parameters for my electrical meter? It's a very small power network owner and I am the first customer with RJ12 adapter?

126

160 226 43 33 19 35 154 230 231 0 15 0 0 0 0 12 7 229 5 27 4 14 46 10 255 128 0 128 2 25 10 14 75 97 109 115 116 114 117 112 95 86 48 48 48 49 9 6 1 1 0 0 5 255 10 16 53 55 48 54 53 54 55 51 51 50 54 48 56 53 50 51 9 6 1 1 96 1 1 255 10 18 54 56 52 49 49 51 56 65 78 50 52 53 49 48 49 48 57 48 9 6 1 1 6 123 1 255 0 1 7 6 0 6 4 255 0 1 0 0 6 7 0 9 71 6 35 1 255 9 52 18 6 7 18 239 126 160 226 43 33 19 35 154 230 231 0 15 0 0 0 0 12 7 229 5 27 4 14 46 20 255 128 0 128 2 25 10 14 75 97 109 115 116 114 117 112 95 86 48 48 48 49 9 6 1 1 0 0 5 255 10 16 53 55 48 54 53 54 55 51 51 50 54 48 56 53 50 51 9 6 1 1 96 1 1 255 10 18 54 56 52 49 49 51 56 65 78 50 52 53 49 48 49 48 57 48 9 6 1 1 6 125 1 255 0 1 7 6 0 6 4 255 0 1 0 0 6 7 0 9 71 6 36 1 255 9 1 255 9 72 18 190 126 160 226 43 33 19 35 154 230 231 0 15 0 0 0 0 12 7 229 5 27 4 14 46 30 255 128 0 128 2 25 10 14 75 97 109 115 116 114 117 112 95 86 48 48 48 49 9 6 1 1 0 0 5 255 10 16 53 55 48 54 53 54 55 51 51 50 54 48 56 53 50 51 9 6 1 1 96 1 1 255 10 18 54 56 52 49 49 51 56 65 78 50 52 53 49 48 49 48 57 48 9 6 1 1 6 120 1 255 0 1 7 6 0 6 4 255 0 1 0 0 6 7 0 9 71 6 35 1 255 9 52 18 9 72 18 152 126 160 226 43 33 19 35 154 230 231 0 15 0 0 0 0 12 7 229 5 27 4 14 46 40 255 128 0 128 2 25 10 14

[aviborg]

It seems you have A-XDR and it reads out correct. As you have to use 2400 baud you might have an older version but I can tell that the initial data is correct as it starts with 126 (0x7e). Here is an explanation of the meaning of it: https://github.com/aviborg/swedishP1/blob/main/data/aidon20201108_112447.txt your dump seems to be very similar if you convert it to hex. If you use my ESP-code what does it show at http://emeter/data.json ?

[Bigert]

Thanks so much for your help. Really appreciate it. Then I understand better how the information from the meter is intended. Then I can try the next step of testing your code and we will see what results it gives in data.json.

[aviborg]

yw