Help with strange Color Controller behaviour with MP2 and SMA

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rrroonn asked Mar 19, '20

Help with strange Color Controller behaviour with MP2 and SMA

Hi, I have the following configuration:

Victron MP2 5000 / 70amp charger
SMA 5000TL-21 solar inverter on AC-Out#1
Pylontech US3000 batteries
Color Controller

If I have to turn the SMA inverter off and then turn it back on later, the CC display looks like this (still) after 15 minutes from turning on the SMA Inverter:

You can see that the Solar inverter is working because it is exporting, however:

SMA inverter is not shown,
AC Loads are not registering (=0) despite being around 600W.

The SMA is remembered:

But does not appear on the device list:

This has happened a few times and it often takes hours before the display corrects itself.

I was running FW 2.51 on the CC but saw that 2.52 was available, so I installed that, but alas, still the same problem.

The CC and SMA are both on the same subnet and I can confirm that the SMA has obtained its IP address which is fixed by DHCP settings. I can confirm this by the SMA front panel.

Is this a known issue?

thanks for your assistance,

Ron

Multiplus-II Venus OS solar

img-20200319-144540.jpg (87.6 KiB)

img-20200319-144654.jpg (83.2 KiB)

img-20200319-144600.jpg (89.6 KiB)

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rrroonn answered · Mar 20, 2020 at 05:40 AM

Looks like it is an issue with the SMA modbus server.

I had the issue occur again, so I tried another modbus client and it would not connect. I used Sunny Explorer to change the modbus port on SMA and then could connect, then changed it back. CC then connected ok.

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Modifications Space

Node Red Space

Answer 1 · 2020-03-19T12:15:30Z

Rob Fijn answered · Mar 19, 2020 at 12:15 PM

Helllo, @rrroonn, could this help:

https://www.victronenergy.com/live/ccgx:ccgx_sma

best regards,

Rob

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rrroonn commented · Mar 19, 2020 at 08:29 PM

Thanks Rob, have seen that.

I spent some time originally before the Victron was installed making sure the MODBUS was working as I had to retrofit the speedwire module.

As I mentioned, its not that the CC doesn't eventually see the SMA and start working correctly, its just that it takes such a looooong time to do so. As per the event I highlighted yesterday, an hour after the post, the CC started showing the correct information.

Maybe I just need to raise it as a software fault?

Ron

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