question

perry-westphal avatar image
perry-westphal asked

No modbus unit ID - carlo gavazzi gridmeter

Carlo gavazzi ET340 is connected but there is no modbus ID.
I see meter firmware version 3.
Every 5 minutes meter connects and disconnects.

I already tried a new color control.

I already reconnected the 3 cables that come from the USB.

Anyone any tips?


problem.jpg

Energy Meter
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3 Answers
markus avatar image
markus answered ·

Your meter shouldn't disconnect.

As you already have tried a new CCGX, the problem could be the meter itself, the cable from the dongle to the meter, or the USB to serial adapter.

I would try to connect the meter to the Usb converter without extension cable and see if that works, if not, change the Usb to serial converter to a new one, if that doesn't help, make an RMA request for the meter.

BR

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perry-westphal avatar image
perry-westphal answered ·

just tried a EM24 gridmeter for this issue.
Still keeps disconnecting.

Only option: The usb cable or the CCGX.

What do you think?

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mjs500 avatar image
mjs500 answered ·

how you rooting the cable between CCGX and meter keep away ac and dc power souses as usb cable is not screened RF from inverter can problem to

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