Domoticz

Hi,

Domoticz 2021.1

My smartmeter reports errors as shown below. Baudrate is OK.
Any suggestion how to fix this?

TIA
-Bart

New cable?
Enexis supplied meter? As there seems to be an issue with it (but should be solved).
Else try to read the P1 telegram and post it here.

Meter from Stedin.
How can I catch the telegram? Currently the P1 is plugged into the raspberry pi.

Hi @ BartSr,

Do you use a L&G E360 smartmeter?

See: viewtopic.php?f=6&t=31593

Regards

@ FireWizard
Yes indeed L&G E360 smartmeter. I read viewtopic.php?f=6&t=31593.
From that I am not that hopefull the CRC's will get away by any 'user action'

Do you know how I cab catch the telegrams for further analyzing?

-Bart

Hi, @BartStr

If you want to see the RAW protocol, do the following:

1. Stop Domoticz, as it will bind the USB port.(sudo service domoticz.sh stop or sudo /etc/init.d/domoticz.sh stop )
2. Issue the following command: "sudo cu -l /<Your serial port device> -s 115200 --parity=none -E q"
Replace "Your serial port device" with your serial (USB) port.

If it returns, that it cannot find the cu command, install it with sudo apt-get install cu minicom.

Regards

@Firewizzard:
Re "Your serial port device"
What are common names for such (I am not very familar using Linux)
Will that be USB0 or USB1 or USB2 etc? or /dev/ttyUSB0 etc. And what is most easy way to figure out wich USB is in use for it?
KR
-Bart

Hello @BartStr
In my opinion the easiest way to find the USB, which is connected to your Smarmeter (using a serial to USB converter) is to follow the next steps.

1. Disconnect the USB cable from the P1 Smart meter on the Raspberry Pi.
2. Issue the command 3. Observe the result.
4. Reconnect the USB cable to the Pi.
5. Repeat step 2
6. Observe the difference. The new line indicate the USB port of the P1 Smart meter.

See also: https://linuxhint.com/list-usb-devices-linux/

I also recommend to create persistent USB.
See:https://www.domoticz.com/wiki/PersistentUSBDevices

Your USB will probably be something like /dev/ttyUSB0 or /dev/ttyUSB1.

Regards

Thanks a lot. Will be offline a few days and will return with my findings later.
Bart

Gents,
Kind of black magic or update by Stedin.
All crc errors are gone without intervention by myself.
-Bart

Nice, so we can consider this topic as closed.

Regards

One year later. New Stable Domoticz release 2023.1 and yes.... all CRC's are back again since 2023.1 version

And then, same as last year errors are gone with the wind.....