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Cbaelectrical avatar image

Energy meter not recognised/displayed on color controller GX

Hi

Wondering if any one has had issues or can help with energy meter not recognised on CCGX.

I have a Carlo Gavazzi em 24 energy meter. It is over 65 amps so using CTs and 3 phase installation. There is a direct connection to the CCGX from the energy meter using victron RS485 to USB interface cable. Meter works fine.

Connected terminal 41 yellow, Terminal 42 orange and terminal 43 Black.

When connected there is only a solid red led light at the USB connection to the back of the CCGX, and will not find/recognise the energy meter.

I have since taken the meter to my distributor and we have experienced the same issues when connected at their work shop. Tried new RS485 to USB interface cable.

Would appreciate any feed back if others have come across this issue or have a solution. I understand this is the only meter compatible over 65 amps for the CCGX?

Thankyou

Ben

CCGX Color ControlEnergy Meter
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Hi Cbaelectrical (and others in a similar situation),

So far, the issues Victron has seen with meters that are not detected are caused by a bad/non-Victron RS485 to USB cable. But in this case, you have mentioned already trying a different cable, so there is the potential that this is different.

Normally there is a red LED towards the back of the USB connector (there is also another kind of cable we sold at one point that does not have this), and a green and red pair closer to the front. The red LED flashes when there is a write event, and the green one when data returns from the meter.

We expect at least that the red one would flash periodically as the CCGX tries to probe for the meter. If there is no red LED flashing periodically, then there is no comms and I'd have to log into that CCGX to see why not. Perhaps the cable itself is not properly detected. If there is a periodic red flash, but the meter is not detected, then I would also like to log in and poke around in the meter's registers.

Can you please confirm you have tried a second new model Victron RS485 cable?

Also what is your observation of the second red LED behaviour? Is there a periodic write flash?

And lastly, what is the VRM id?

robert1508 avatar image robert1508 Guy Stewart (Victron Community Manager) ♦♦ ·

I have 2 RS485 cables. one work second not. can you confirm the working one is a new one.

On photo good one is bottom one. on both photos

6 Answers
Sutho avatar image
Sutho answered ·

Was there a solution to this one yet, as I am also having the same issue with a Carlo Gavazzi ET340 not showing up on the CCGX. Have triple checked wiring, rebooted CCGX and it still not being listed under Energy Meters.

Further info: when the USB is first plugged into the back of the CCGX, the red and green comms LEDs blink twice and then the red continues to blink periodically with no green response.

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HI Sutho

Have a look at my last comment here: https://community.victronenergy.com/questions/42550/ccgx-not-recognising-carlo-gavazzi-meter-em24dinav.html

I resolved the problem discovering that the issue was actually due to the UTP extension cable. Apparently it appears there are issues with using twisted pairs in some UTP cables. So, firstly see if meter and RS485 to USB cable are ok, by testing on PC software. Then try using a different Twisted Pair, or maybe not even twisted pairs but single wires from different TPs.

Good luck

Lazza


Lazza avatar image
Lazza answered ·

HI

I'm just having the same problem with a Carlo Gavazzi EM24DINAV53DISX- CCGX not recognising meter. All connected up correctly, and have checked continuity of the data cables-. all fine. yellow in 41, orange in 42 and black in 43.

The cable I have is like the top one in the photos from Robert1508.

On the USB at the back of the CCGX, green light is periodically flashing, but red light is fixed solid


Can anyone help?

Thanks

Laz

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WKirby avatar image
WKirby answered ·

I can't see anything wrong with the wiring.
What is the Modbus ID of the meter set to? I seem to remember someone else having difficulties until they set their Modbus ID to 1.

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correct, it was me with the ET340 which obviously must be set to "1", noot sure if this applies to the EM24 too

I have just had a look and my EM24 is working on Modbus ID 1 (Address 1).

Thanks WKirby

Yes it is set to Modbus1 this was the default setting, we tried 2 also just to see if it would make a difference.

The LED indicator on the USB plug of the RS485 to USB cable that connects to the CCGX was a solid red on site. At the work shop when tested it was slow flashing. I’m told it should flash rapidly? Not sure if this gives any indication of the issue?

Assuming we have done installation correctly the only thing we haven’t tried is a new meter (maybe faulty?)

Another suggestion was if the CCGX possibly had any downloadable updates that may fix this issue?

Guy Stewart (Victron Community Manager) avatar image
Guy Stewart (Victron Community Manager) answered ·

Forgive the obvious question, but are you providing a power supply to the meter?

Is it possible to post a photo of the installation, which shows all the components and the configuration.

I am scheduled to work on improving the diagrams and documentation for the energy meters this week. I may start with the EM24. This will involve a step by step physical installation, so I will be better equipped to assist shortly.

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Hi Guy

Please find attached some photos of the installation and energy meter terminations.

1 3 5 are grid reference, 8 9 10 11 12 13 CT connections

41 42 43 CCGX , 55 57 240v power supply.

The job is in a remote location so I have brought the meter back to have it tested at my victron distributors work shop with same results. Have checked the default settings on meter as per a victron manual and also had Carlo Gavazzi tech on line to check installation from their end.

Step by step installation would be good.

@Guy Stewart (Victron Energy Staff) did you get round to the manual? I'm experiencing similar issues at the moment on site.

Sorry, I have not, please post some more details of your issue as well and I will pass this thread along to someone at Victron to try and help.

The proper test would involve disconnecting power to my house, and I haven't found an agreeable time for that with my wife yet :)

Vicky avatar image
Vicky answered ·
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WKirby avatar image
WKirby answered ·

What is the exact model number of your EM24 meter? Are you sure it has the RS485 option?

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The model of the meter is EM24DIN AV5 3D IS X.

On the side of the meter it reads output: RS485 + 3 digital inputs.

I have been told this is the only meter option for over 65 amps which is compatible with the victron CCGX ?