[homematic] Error CUXD Virtuelle Devices homematic:VIR-LG-xxx

[guny74]

Hello,

I use OH 2.5.10 on docker and homematic (Raspberrymatic Version 3.53.34.20201121 = latest release on RPI3)

I have some virtual CUxD Devices Type (28) System --> Exec for controlling hue lights (or light groups) via an Hue Addon (j-a-n).

Virtual Devices like...
VIR-LG-RGBW-DIM
VIR-LG-WHITE-DIM
....
This virtual device type are the only ones to have a homematic control for color and color temperature...

After the initial adding as thing, the thing directly get a communication error

"-4 Unknown parameter (sending getValue() CUX2801008:1 CMD_RETS )"

Any idea how to solve this ?

Thank you

Regards
Thorsten

[MHerbst]

Hi Thorsten,

I would assume that this error is returned from the CCU resp. CuxD. Can you please enable the DEBUG log mode and send an excerpt from openhab.log where I can see what happens before and after this error message.

I don't have that much experience with Cuxd but maybe the log can help to find the reason.

[guny74]

Hello MHerbst,

I hope this help to find the reason..... the last messages repeats some more often....

`==> /openhab/userdata/logs/openhab.log <==

2020-11-27 18:07:04.303 [ERROR] [ternal.handler.HomematicThingHandler] - Can't find datapoint for thing property CUX2801008:M_3#EXEC_ON_CHANGE

2020-11-27 18:07:04.309 [ERROR] [ternal.handler.HomematicThingHandler] - Can't find datapoint for thing property CUX2801008:M_4#MAX_VAL

2020-11-27 18:07:04.312 [ERROR] [ternal.handler.HomematicThingHandler] - Can't find datapoint for thing property CUX2801008:M_5#MAX_VAL

2020-11-27 18:07:04.317 [ERROR] [ternal.handler.HomematicThingHandler] - Can't find datapoint for thing property CUX2801008:M_3#MAX_VAL

2020-11-27 18:07:04.328 [ERROR] [ternal.handler.HomematicThingHandler] - Can't find datapoint for thing property CUX2801008:M_2#EXEC_ON_CHANGE

2020-11-27 18:07:04.332 [ERROR] [ternal.handler.HomematicThingHandler] - Can't find datapoint for thing property CUX2801008:M_5#EXEC_ON_CHANGE

2020-11-27 18:07:04.337 [ERROR] [ternal.handler.HomematicThingHandler] - Can't find datapoint for thing property CUX2801008:M_4#EXEC_ON_CHANGE

2020-11-27 18:07:04.343 [ERROR] [ternal.handler.HomematicThingHandler] - Can't find datapoint for thing property CUX2801008:M_2#MAX_VAL

==> /openhab/userdata/logs/events.log <==

2020-11-27 18:07:04.366 [hingStatusInfoChangedEvent] - 'homematic:VIR-LG-RGBW-DIM:3014F711A0001F58A9A7127D:CUX2801008' changed from OFFLINE (COMMUNICATION_ERROR): -4 Unknown parameter (sending getValue()

CUX2801008:1

CMD_RETS

) to ONLINE

2020-11-27 18:07:04.404 [hingStatusInfoChangedEvent] - 'homematic:VIR-LG-RGBW-DIM:3014F711A0001F58A9A7127D:CUX2801008' changed from ONLINE to OFFLINE (COMMUNICATION_ERROR): -4 Unknown parameter (sending getValue()

CUX2801008:1

CMD_RETS

)

2020-11-27 18:07:04.408 [hingStatusInfoChangedEvent] - 'homematic:VIR-LG-RGBW-DIM:3014F711A0001F58A9A7127D:CUX2801008' changed from OFFLINE (COMMUNICATION_ERROR): -4 Unknown parameter (sending getValue()

CUX2801008:1

CMD_RETS

) to ONLINE

2020-11-27 18:07:04.443 [hingStatusInfoChangedEvent] - 'homematic:VIR-LG-RGBW-DIM:3014F711A0001F58A9A7127D:CUX2801008' changed from ONLINE to OFFLINE (COMMUNICATION_ERROR): -4 Unknown parameter (sending getValue()

CUX2801008:1

CMD_RETS

)

2020-11-27 18:07:04.447 [hingStatusInfoChangedEvent] - 'homematic:VIR-LG-RGBW-DIM:3014F711A0001F58A9A7127D:CUX2801008' changed from OFFLINE (COMMUNICATION_ERROR): -4 Unknown parameter (sending getValue()

CUX2801008:1

CMD_RETS

) to ONLINE

2020-11-27 18:07:04.463 [hingStatusInfoChangedEvent] - 'homematic:VIR-LG-RGBW-DIM:3014F711A0001F58A9A7127D:CUX2801008' changed from ONLINE to OFFLINE (COMMUNICATION_ERROR): -4 Unknown parameter (sending getValue()

CUX2801008:1

CMD_RETS

)

2020-11-27 18:07:04.470 [hingStatusInfoChangedEvent] - 'homematic:VIR-LG-RGBW-DIM:3014F711A0001F58A9A7127D:CUX2801008' changed from OFFLINE (COMMUNICATION_ERROR): -4 Unknown parameter (sending getValue()

CUX2801008:1

CMD_RETS

) to ONLINE

2020-11-27 18:07:04.488 [hingStatusInfoChangedEvent] - 'homematic:VIR-LG-RGBW-DIM:3014F711A0001F58A9A7127D:CUX2801008' changed from ONLINE to OFFLINE (COMMUNICATION_ERROR): -4 Unknown parameter (sending getValue()

CUX2801008:1

CMD_RETS

)`

[guny74]

Hello,

ok, in CUXD it is possible a "VIR-LG-RGBW-DIM", but in the background you can use different base devices with other parameters.
So, do you know how the homematic binding get the "expected Parameters for an "device type" ?

It is possible to clear that for a special device type and reimport it ?

[MHerbst]

The binding asks the CCU for a list of the devices and their data points. It then creates things + channels based on this information.

It is possible to clear that for a special device type and reimport it ?

You can delete the thing in openHAB and run a new discovery. Then the thing is created completely new.

The unknown data points seem to be similar to a problem with HmIP devices (#5048). There were also data points that could not be used as channels (they had a "M_" in their name, too). They seem to be thing configuration data points. I think I could enhance to binding to ignore these data points.

Currently, I only a development environment for OH 3. Will have to see whether I can set up an environment for OH 2.5.

[guny74]

Hallo,

no problem, I have the same problem in my OH 3 M2 Test instance (docker).

But I think it could be an other problem: At the CUxD Documnetation I found the following:

Um unbeabsichtigte Programmaufrufe bei der Abfrage der Datenpunkte CMD_RETS und CMD_RETL zu vermeiden, muss vor der Abfrage dieser Datenpunkte eine '1' an den Datenpunkt CMD_QUERY_RET gesendet werden. Erst danach ist der Programmaufruf für die folgenden 10s freigeschaltet.

To prevent unintentional program calls when querying the data points CMD_RETS and CMD_RETL, a '1' must be added to the before the right to choose these data points Data point CMD_QUERY_RET will be. For the first time, the program call is for unlocked the following 10s.

Here an similar Problem with device type (28) https://openhabforum.de/viewtopic.php?t=3295

Cloud be this the problem ?

Thank you

Regards

[guny74]

Hello,

I made a test.... setting the datapoint with Homematic script dom.GetObject ("CUxD.CUX2801005:1.CMD_QUERY_RET").State (1);
then the Device goes online.... but only to next reboot (OH or CCU)

[MHerbst]

Cloud be this the problem ?

I am quite sure that this is the problem. As far as I know there is no special treatment for special CUxD devices like this. I think I will have to install CUxD and have a closer look into it.

[elbman]

Hello,

i have CCU3 with raspberrymatic and installed OpenHab with Homematic Binding

I'm using Cuxd with many Devices Type "(28) System" and i'm surprised thas Things has still problems with them

(also tried newes snapshot, but no success)

COMMUNICATION_ERROR
-4 Unknown parameter (sending getValue() CUX2801004:1 CMD_RETL )

Is there a workaround or will this problem be fixed soon?

thank you!

[MHerbst]

I did not find enough time for this problem. It will probably a bit complicated to solve this problem. The binding is not prepared to send a special value for a data point before it can retrieve it.

[elbman]

Thaink you for your fast reply. I hope you find the time in the near future, i‘m certainly not the only one who would be excited when the bug fixed.

I wait patiently 😉

[lsiepel]

As this is a rather old issue, it might have been fixed. Can you confirm this is still an issue with most recent stable (openHAB 4.2.0)
List of PR's https://github.com/openhab/openhab-addons/pulls?q=is%3Apr+is%3Aclosed+merged%3A2021-05-01..2025-01-01+in%3Atitle+homematic+

[guny74]

Hello,

sorry I could not confirm this, because I removed CUxD (and VIRT- Devices) from my Homematic.

Should I also close this issue ?

[lsiepel]

LEt's close it for now, if someone else encounters this, we can always re-open. Thanks for your quick response!