No HAN data received

[MrJLA]

Hardware information:

• Country: Denmark
• Meter: Kamstrup
• Encryption enabled YES. Keys inserted
• AMS reader: ESP8266

Board ESP8266 flashed with latest firmware.
AMSRreader installed correctly and running. I telnet into it to monitor the prompt which says it gets no data.
I have connected the data pin to GPIO13.

HAN RX is set to GPIO13. Ive tried pull up check/unchecked. Ive tried different GPIO pins. And ive seen short signs of data but then disapears.
What could be wrong? Im unsure what pins on the ESP8266 i should use for data connection to the meter

[ArnieO]

Since you have the encryption keys, I assume you received them after contacting your grid company to request activation of the HAN port?

Are you sure you have connected it correctly to the 6-pin plug in the meter?
This is the pinout, looking into the meter:

• DATA_OUT to ESP8266 GPIO13
• GND to ESP8266 GND

[gskjold]

I assume you got two encryption keys (Encryption and authentication) ?
Also, remember to set baud 2400 8N1.

[ArnieO]

I assume you got two encryption keys (Encryption and authentication) ?

@MrJLA : Information regarding encryption keys for Kamstrup Omnipower in Denmark: https://www.amsleser.no/module/ets_blog/blog?id_post=22

[Sommerdal-ufm]

I have the same hardware as described above.
Suddenly my HAN indicator has turned red

[ArnieO]

I have the same hardware as described above. Suddenly my HAN indicator has turned red

It could be due to this Kamstrup Omnipower snag: https://www.amsleser.no/module/ets_blog/blog?id_post=33

If so, you can hope your meter is updated with latest firmware. If so, follow the guiding in the article.
If that does not help, I hope you are in the Radius area. In that case a remote restart can be done relatively easily. You will have to contact them to request a remote restart.

[Sommerdal-ufm]

I'm in the Copenhagen Radius area.
I have mailed Radius about the problem. Hopefully they will make a remote restart.

[ArnieO]

I'm in the Copenhagen Radius area. I have mailed Radius about the problem. Hopefully they will make a remote restart.

It should be trivial to get it done, as Radius have a quite close collaboration with Kamstrup - and as far as we know it is only Kamstrup that can do a remote restart, it cannot be done from the software the grid companies normally use to remote configure the meter.

[Sommerdal-ufm]

Kamstrup have now done a reset, and HAN is green again.

[ArnieO]

Kamstrup have now done a reset, and HAN is green again.

Good to hear!
This snag is unfortunate - but as you see, it is due to some kind of random issue with the Omnipower meters.