Smartmeter Binding. SML Reader goes offline after a certain time

[s4ndst0rm (Dominik Benner)]

Hi,

im on OH 3.2. After a certain random time both of my smartmeter readers go offline with “crc error”.
In openhab.log i see no error.

How can i debug this?

br

Dominik

[Tuny (Sebastian)]

There is a fix in the newer versions of 3.3.
See here: OH3.X Alternative Java serial provider - #12 by wborn

You can also try the alternative serial provider, which is very reliable and works with 3.2:

OH3.X Alternative Java serial provider

By default, the serial connection on the openHAB system is done with nrjavaserial. Unfortunately there are some issues with this provider, so some (unstable) COM-connections can lock up after a while. See here: In my case I had big problems with the connection to my smart meter trough an optical probe. As “workaround” I had to restart the whole openHAB instance after some hours. This was very frustrating. Now there is a “real workaround”, which I found here in the forum more or less by accid…

[s4ndst0rm (Dominik Benner)]

Hi @Tuny !

Thanks for your answer.
So if i understood you right, i have to wait or update to snapshot 3.3?

Alternative:
Install the linked alternative serial provider.
Does the smartmeter binding use this new provider automatically or do i have to reconfigure all my smartmeter items?

br

[Tuny (Sebastian)]

@s4ndst0rm

So if i understood you right, i have to wait or update to snapshot 3.3

The fix is already in the newest Milestone (5) release of OH 3.3.

For the alternative:
No you only have to change the com port of the thing.