MPPT not showing in VRM

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Nathan Ciaglia asked Feb 1, '21

MPPT not showing in VRM

Hey Guys,

I have a EasySolar II GX with an additional MPPT charger in a dc coupled system. The addition MPPT charger is connected to the EasySolar II via Can.bus with terminators either side of the link between them.

I have notice that when I log into the EasySolar via its IP, I see the internal MPPT 250/70 listed but not the additional MPPT 250/100 unit. If I log into the vrm portal and check devices I see the EasySolar GX, MultiPlus II, Smart Shunt and the MPPT 250/70 only.

What would cause a unit not to appear??

Nathan

Multiplus-II MPPT SmartSolar EasySolar All-in-One

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Answer 1 · 2021-02-01T22:41:05Z

seb71 answered · Feb 01, 2021 at 10:41 PM

I took a look at the EasySolar II GX manual and it does not have VE.Can.

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seb71 commented · Feb 01, 2021 at 10:45 PM

Use VE.Direct instead.

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Answer 2 · 2021-02-02T06:15:03Z

Nathan Ciaglia answered · Feb 02, 2021 at 06:15 AM

I took a picture of both devices and they do both have ve.can rj45 ports.

besides the ve.direct port is being used by the smart shunt on the battery.

5a979ca0-c5ba-47ed-9b89-f599bce0c824.jpeg (1.9 MiB)

16bdf72c-4f7c-48cc-bcc5-2afa7d14db96.jpeg (1.6 MiB)

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Answer 3 · 2021-02-02T08:22:40Z

seb71 answered · Feb 02, 2021 at 08:22 AM

Strange.

But look here, too:

[14] Though some early batches of the Maxi GX, MultiPlus-II GX and 
EasySolar-II GX all have a dual set of RJ-45 sockets labelled VE.Can, 
this port is actually a BMS-Can port. It can only be used to connected 
to managed batteries such as Freedomwon, BYD, Pylontech, BlueNova, MG 
Energy Systems and others, at 500kbps. The hardware does not meet the 
requirements for a VE.Can port; and thus it is not possible to use to 
port to connect Victron products such as the SmartSolar VE.Can MPPT 
product range. Note that for a while Venus OS
 firmware did allow to select the VE.Can function and other baudrates. 
The result will be unreliable, and therefor they have been updated to 
lock into BMS-Can only at 500kbps.

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seb71 commented · Feb 02, 2021 at 08:29 AM

I suppose then that VE.Direct to USB could be an option to connect your second MPPT, if the only VE.Direct port is taken by the SmartShunt.

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Answer 4 · 2021-02-02T09:26:59Z

Nathan Ciaglia answered · Feb 02, 2021 at 09:26 AM

That is strange, it’s clearly labeled poorly then. I don’t get why the Bluetooth in everything in my system isn’t sufficient enough to link all the pieces together in the one system.

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