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bonie-wanda avatar image
bonie-wanda asked

No grid meter: Warning and Passthru

My installation went into Passthru mode: There is a warning:

No grid meter: Warning

I have rebooted the Venus GX bus no luck.

Set:

  1. 2x Multiplus II-48v-230v-300VA;
  2. 1x BlueSolar MPPT 150/35
  3. 1x BlueSolar MPPT 150/45
  4. Venus GX
  5. 4x PylonTech US3000
  6. ET112 single phase Grid Meter

I looked for solutions on the Community Portal but have failed.

Can you please assist me.


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Venus GX - VGX
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4 Answers
Duivert NL avatar image
Duivert NL answered ·

hi, how is your grid meter connected to venus?

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bonie-wanda avatar image bonie-wanda commented ·
it is connected via a UTP cable, with RJ45 on the grid meter side and converted to a USB on the GX side. I just have an installer come to recheck the connections of the cable and all seems good. It did not help.
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Jason - UK avatar image
Jason - UK answered ·

@Bonie Wanda That sounds to me like a bad connection, either on the RS485 wiring or on the USB side. I had the same issue for a while. It turns out I had too many USB devices on the USB hub. When I plug the RS485toUSB directly into the GX device, issue fixed. I also had an issue where the connection to the ET112 wasn't great causing breaks in the data flow.

As a short term solution, I removed the grid meter form the list of devices but obviously I lost the ability to supply the loads before the Multiplus unit but it did get the Multiplus inverting again until i fixed my wiring.

Its worth noting, sub-standard RS485 to USB devices will give you no end of trouble like the issue you are experiencing. I only use Victron RS485 to USB now for that reason.


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bonie-wanda avatar image bonie-wanda commented ·
I hear you @Jason - UK . I have asked the electrician to source me a solid RS485 to USB cable so that I can eliminate any connection issues. The wires are delicate and easy to break, so we were joining using a chock block. I even did the joint directly but it is not helping. I will put the choch block back.
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bonie-wanda avatar image bonie-wanda bonie-wanda commented ·
I need about 20m of RS485 to USB which is why I had to join. They did not have a long one back in the days.
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Duivert NL avatar image Duivert NL bonie-wanda commented ·
20 meters is possible with good shielded wiring (best is digital signal cable 110ohm) i used to have about 35m in between
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bonie-wanda avatar image
bonie-wanda answered ·
  • Venus GX still on 3.3
  • Upgraded the ESS assistant with the MK3;
  • Upgraded the MPPTs from 1.61 to 1.63

Changes later in the afternoon after upgrades and re-enabling External Grid Meter (in ESS menu)


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I will monitor into tomorrow and feedback.





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bonie-wanda avatar image
bonie-wanda answered ·

Since upgrading the firmware on the MPPTs yeterday, it seems to be working normal now.


Thank you for your inputs.


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