I am using a Buderus WLW196-i. This type has a integrated lan-gateway ( similar to KM200). Using the KM200-Bindig, the Heat-pump is discovered, but communication fails. I think, there is a problem with the private key. I have the loginname and password from the heat-pump (label), but there is no private password. Has anyone expirience to deal with that, or is there another solution?
kind regards erich
yes, i did and installed the two additional jarĀ“s with reboot. (i am using ZULU-11 on WIN10-System)
LOG:
2021-06-10 13:38:39.912 [WARN ] [.core.thing.binding.BaseThingHandler] - Handler KM200GatewayHandler tried updating the thing status although the handler was already disposed.
2021-06-10 13:38:39.927 [INFO ] [internal.handler.KM200GatewayHandler] - Update KM50/100/200 gateway configuration, it takes a minuteā¦
2021-06-10 13:38:40.177 [WARN ] [b.binding.km200.internal.KM200Device] - Parsingexception in JSON: com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 12 path $ service: /gateway/DateTime
p.s.: Encryption is ok:
āC:\tmp>āc:\Program Files\Zulu\zulu-11\bin\javaā CipherTest
Max AES key length = 2147483647ā
Hello,
Iāve got more or less the same pump. Do you ācreateā the correct private key?
There is a link and description.
Regards
Chris
I have read all that stuff. but the problem is,that i have no āPrivatePasswordā! for a gateway because there is no expizit extra gateway - it is a builtin one. The Android-App connects via the āBOSCH-IDā and that password seems not to work in the KM200-binding. I mention, the authentification is a little bit different to the KM200.
Yes, itās the same machine here. The gateway is built in. Itās some time since I installed it. But I think the password is the same as you can find in the system menu under āinternetā. The second step is to descramble the private key (link above).
But I can have a look tomorrow or at the weekend in my config files.
Ok, second try.
Go to AES-Key-Generator fĆ¼r das KM200 Web Gateway and insert the PW shown in the āinternetā menu of the pump and your Bosch-App Password.
If this will not generate the proper secret key IĀ“ll have a look at the weekend.
Hope it helps.
Best regards and good luck.
Ok, now i got it. The password is not displayed in the āInternet-Menuā There is only the option to reset the password. So i reset the password and had to reinstall the App to set a new password. Now i generated the AES-Key with this new password and it works. Thx!
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Hi there,
I am running the km200 binding in a docker container and also had the issue with āno communication possibleāā¦ I tried so many things, what in the end worked was easy so I wanted to share:
As your āInternet Passwordā or private password, please do use a very simple password, I am not sure wether upper-case letters are supported and for sure no !?#.,-_ etc. I simplified my password and suddenly it worked.
Many thanks though for all posts here that helped me find check various possible issues!
Hi @kaper25
I wasnāt aware that the KM200 binding might support the WLW196.
So thankās for creating this thread (and to Joe for reviving it 
)
Since Iām interested in that heatpump too (not ordered yet), Iād like asking you about your impressions/experiences of this integration:
-
Would you share a list of channels you get from the KM200 binding talking to your WLW196?
-
Does the integration/communication via the binding work reliably?
-
Are you controlling/changing operation of the heatpump somehow from openHAB side (e.g. force usage of PV surplus) or are you just monitoring the heatpump?
Many thanks,
Curlyel