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Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81> since solar inverter firmware 4.00.75.R #4

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sweh opened this issue Mar 3, 2023 · 11 comments
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Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81> since solar inverter firmware 4.00.75.R #4

sweh opened this issue Mar 3, 2023 · 11 comments
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@wimleers
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@sweh
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sweh commented Mar 3, 2023

Hi,

I managed to install this nice plugin, but it does not show any data. In the logs I get the following error:

[3/3/2023, 9:21:14 AM] [homebridge-sma-home-manager] Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81>

Can you assist me on debugging this? Is there a way I can log the buffer in a readable form? I can adjust the code in index.js if you tell me what and where.

Thanks in advance,
Sebastian
@sweh sweh added the help wanted Extra attention is needed label Mar 3, 2023
@sweh
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sweh commented Mar 3, 2023

I managed to log the msg variable in the logs, but it's not very readable. Looks like an encoding issue?

[3/3/2023, 10:01:14 AM] [homebridge-sma-home-manager] Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81>
[3/3/2023, 10:01:14 AM] [homebridge-sma-home-manager] Datagram: SMA�
                                                                    `�������
[3/3/2023, 10:01:20 AM] [homebridge-sma-home-manager] Datagram: SMA�&`e �������t|�f���
[3/3/2023, 10:01:51 AM] [homebridge-sma-home-manager] Datagram: SMA�&`e �������t|�f��
[3/3/2023, 10:02:14 AM] [homebridge-sma-home-manager] Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81>
[3/3/2023, 10:02:14 AM] [homebridge-sma-home-manager] Datagram: SMA�
                                                                    `�������
[3/3/2023, 10:02:22 AM] [homebridge-sma-home-manager] Datagram: SMA�&`e �������t|�f�t�
[3/3/2023, 10:02:53 AM] [homebridge-sma-home-manager] Datagram: SMA�&`e �������t|�f�Һ
[3/3/2023, 10:03:14 AM] [homebridge-sma-home-manager] Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81>
[3/3/2023, 10:03:14 AM] [homebridge-sma-home-manager] Datagram: SMA�
                                                                    `�������
[3/3/2023, 10:03:24 AM] [homebridge-sma-home-manager] Datagram: SMA�&`e �������t|�f�.�
[3/3/2023, 10:03:55 AM] [homebridge-sma-home-manager] Datagram: SMA�&`e �������t|�f���
[3/3/2023, 10:04:14 AM] [homebridge-sma-home-manager] Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81>
[3/3/2023, 10:04:14 AM] [homebridge-sma-home-manager] Datagram: SMA�
                                                                    `�������
[3/3/2023, 10:04:26 AM] [homebridge-sma-home-manager] Datagram: SMA�&`e �������t|�f���
[3/3/2023, 10:04:57 AM] [homebridge-sma-home-manager] Datagram: SMA�&`e �������t|�f�L�
[3/3/2023, 10:05:14 AM] [homebridge-sma-home-manager] Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81>
[3/3/2023, 10:05:14 AM] [homebridge-sma-home-manager] Datagram: SMA�
                                                                    `�������
[3/3/2023, 10:05:28 AM] [homebridge-sma-home-manager] Datagram: SMA�&`e �������t|�f���
[3/3/2023, 10:05:59 AM] [homebridge-sma-home-manager] Datagram: SMA�&`e �������t|�f��
[3/3/2023, 10:06:14 AM] [homebridge-sma-home-manager] Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81>
[3/3/2023, 10:06:14 AM] [homebridge-sma-home-manager] Datagram: SMA�
                                                                    `�������
[3/3/2023, 10:06:30 AM] [homebridge-sma-home-manager] Datagram: SMA�&`e �������t|�f�w�
[3/3/2023, 10:07:01 AM] [homebridge-sma-home-manager] Datagram: SMA�&`e �������t|�f�ؽ
[3/3/2023, 10:07:14 AM] [homebridge-sma-home-manager] Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81>
[3/3/2023, 10:07:14 AM] [homebridge-sma-home-manager] Datagram: SMA�
                                                                    `�������
[3/3/2023, 10:07:32 AM] [homebridge-sma-home-manager] Datagram: SMA�&`e �������t|�f�7�
[3/3/2023, 10:08:03 AM] [homebridge-sma-home-manager] Datagram: SMA�&`e �������t|�f���
[3/3/2023, 10:08:14 AM] [homebridge-sma-home-manager] Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81>
[3/3/2023, 10:08:14 AM] [homebridge-sma-home-manager] Datagram: SMA�
                                                                    `�������
[3/3/2023, 10:08:34 AM] [homebridge-sma-home-manager] Datagram: SMA�&`e �������t|�f��
[3/3/2023, 10:09:05 AM] [homebridge-sma-home-manager] Datagram: SMA�&`e �������t|�f�Q�
[3/3/2023, 10:09:14 AM] [homebridge-sma-home-manager] Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81>
[3/3/2023, 10:09:14 AM] [homebridge-sma-home-manager] Datagram: SMA�
                                                                    `�������

@sweh
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sweh commented Mar 3, 2023 •
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Ok, I guess I was on the wrong track here. Through intensive logging I was able to find out that the required values are read out by the HomeManager. For example, I see t.production increasing every few seconds. Still I don't see them in the Home app, it says "This device is currently not supported by the Home app" for all 6 devices.

Bildschirm­foto 2023-03-03 um 11 00 06

Any idea what I'm doing wrong?

@wimleers
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wimleers commented Mar 3, 2023

Ok, I guess I was on the wrong track here. Through intensive logging I was able to find out that the required values are read out by the HomeManager. For example, I see t.production increasing every few seconds. Still I don't see them in the Home app, it says "This device is currently not supported by the Home app" for all 6 devices.

Bildschirm­foto 2023-03-03 um 11 00 06

Any idea what I'm doing wrong?

The Home app does not support custom accessories, services and characteristics. Use Home+, Eve or Controller 😊

@wimleers wimleers added the question Further information is requested label Mar 3, 2023
@sweh
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sweh commented Mar 3, 2023

Oh I see. With Controller it works for me. Thanks!!!

@sweh sweh closed this as completed Mar 3, 2023
@wimleers wimleers changed the title Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81> "Not supported" in Home app Mar 3, 2023
@wimleers wimleers reopened this Mar 6, 2023
@wimleers
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wimleers commented Mar 6, 2023

I'm now also getting Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81>!

This appears to have been triggered by my inverter upgrading to firmware 04.00.75.R. Any chance the same is true for you?

For me too this is happening exactly once every 60 s.

@Scream4Life
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I'm now also getting Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81>!

I'm now also getting Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81>!

For me too this is happening exactly once every 60 s.

I‘m getting the same error, but didn‘t touch my inverter firmware. But figures are still rolling in.

@wimleers
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wimleers commented Mar 7, 2023

I'm now also getting Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81>!
I'm now also getting Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81>!
For me too this is happening exactly once every 60 s.

I‘m getting the same error, but didn‘t touch my inverter firmware. But figures are still rolling in.

I didn’t touch it either. It was updated automatically on March 4!

@TheRealGros
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TheRealGros commented Mar 13, 2023 •
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Same issue here. Just installed the plugin. Firmware 4.00.7R

@wimleers wimleers changed the title "Not supported" in Home app Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81> since solar inverter firmware 04.00.75.R Mar 14, 2023
@wimleers wimleers added bug Something isn't working and removed help wanted Extra attention is needed question Further information is requested labels Mar 14, 2023
@wimleers wimleers pinned this issue Mar 14, 2023
@wimleers
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wimleers commented Mar 14, 2023 •
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Firmware 4.00.75.R for Sunny Boy inverters was released on 14.02.2023, and if you download it from the SMA website, you'll find a READ_ME.pdf included.

That says:

The update file contains all features of former firmware versions New features and solved issues:
• Unicast protocol for reliable communication between inverter and meter
• Solved communication issue (all LEDs off) after rebooting the inverter

… but that protocol has not been documented! 😬 It's unclear whether the datagrams we receive exist solely for discovery (since it's multicast, not unicast) to then set up a direct connection between inverter & SHM, or whether it contains meaningful data.

But we can't use it anyway for this plugin because the update frequency would be too low.

At least we have a very strong clue in the README!

@wimleers wimleers changed the title Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81> since solar inverter firmware 04.00.75.R Valid datagram found, but with unknown structure. Discarding. <Buffer 60 81> since solar inverter firmware 4.00.75.R Mar 14, 2023
@wimleers
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wimleers commented Mar 14, 2023 •
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Temporary debug output I put in place:

[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] Valid datagram found, but for inverter communication discovery. Ignoring.
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 0, 83 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 1, 77 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 2, 65 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 3, 0 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 4, 0 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 5, 4 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 6, 2 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 7, 160 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 8, 0 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 9, 0 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 10, 0 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 11, 1 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 12, 0 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 13, 12 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 14, 0 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 15, 16 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 16, 96 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 17, 129 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 18, 0 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 19, 1 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 20, 1 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 21, 153 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 22, 179 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 23, 119 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 24, 51 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 25, 53 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 26, 255 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 27, 255 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 28, 0 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 29, 0 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 30, 0 ]
[3/14/2023, 8:05:02 PM] [homebridge-sma-home-manager] [ 31, 0 ]
…
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] Valid datagram found, but for inverter communication discovery. Ignoring.
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 0, 83 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 1, 77 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 2, 65 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 3, 0 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 4, 0 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 5, 4 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 6, 2 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 7, 160 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 8, 0 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 9, 0 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 10, 0 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 11, 1 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 12, 0 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 13, 12 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 14, 0 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 15, 16 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 16, 96 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 17, 129 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 18, 0 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 19, 1 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 20, 1 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 21, 153 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 22, 179 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 23, 119 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 24, 51 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 25, 53 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 26, 255 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 27, 255 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 28, 0 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 29, 0 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 30, 0 ]
[3/14/2023, 8:06:02 PM] [homebridge-sma-home-manager] [ 31, 0 ]

☝️ Looks like the datagrams are identical, so definitely makes it very likely it's only used for discovery.

@wimleers
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🚢 Fix shipped in https://github.com/wimleers/homebridge-sma-home-manager/releases/tag/1.0.2

@wimleers wimleers self-assigned this Mar 16, 2023
@wimleers wimleers mentioned this issue Mar 18, 2023
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@wimleers wimleers mentioned this issue Apr 13, 2023
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@wimleers wimleers mentioned this issue Dec 7, 2023
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@wimleers @sweh @Scream4Life @TheRealGros