question

perry-westphal avatar image
perry-westphal asked

ESS multiplus 2 ET340 gridmeter keeps disconnecting

problem: gridmeter connect and disconnect randomly

modbus unit ID is not visible in menu:
modbus-not-visible.jpg

problem in this video:


setup:

carlo gavazzi ET340.

3 x multiplus 2. (3 fase)

ESS with only ACin connected.

GGCX.

modbus unit ID is not showing.

Multiplus-IIESSEnergy MeterModbus TCP
modbus-not-visible.jpg (32.6 KiB)
gridmeter-disconnect-spontanously.mp4 (2.2 MiB)
no-more-values-spontanously.mp4 (2.1 MiB)
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5 Answers
perry-westphal avatar image
perry-westphal answered ·

issue was solved by replacing GGCX + Cable + Gridmeter :-(


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lgnde avatar image
lgnde answered ·

How did you solve this issue?

We have the same issue, the ET340 gridmeter disconnectes every minute for about 5 seconds, and so on. We already changed the ET340 and the RS485 cable. Both ET340 were running on firmware B-7.

Could this be a firmware issue? And if yes, how should we update the meter?

Best regards,

Willem

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jodi5d avatar image
jodi5d answered ·

Just wondering if anyone has the problem with an EasySolar II 48/3000/35 + ET340 and 5m RS485 to USB adapter that keeps connecting and disconnecting?

Also multiphase regulation doesn't seem to work. Won't discharge battery to compensate for energy usage on other phases.

Thanks,

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perry-westphal avatar image
perry-westphal answered ·

Still having the same issue, also after replacing the gridmeter for a EM24.
Does anyone have a solucion?

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s-forsberg avatar image
s-forsberg answered ·

My ET340 works perfectly. Just make sure to connect as follows,

1674547694786.pngBonus tip, connect terminal 7 to terminal 9 for bus termination (for longer cable runs).

1674552051889.png


1674547694786.png (19.6 KiB)
1674552051889.png (9.4 KiB)
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