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Zigbee not making connection with EM24 and CCGX

Hello, i have a problem to establish Zigbee Connection from EM24 to CCGX.

The documentation of zigbee is horrible...

is there something known about the LED Behaviour of the zigbees?

my rs485 zigbee status:

Active LED: blinking rapidly

my USB zigbee status:

Active LED : on
TX/RX LED: blinking (maybe 1hz)

maybe somebody has an idea whats going wrong?
Or Maybe additional informations about LED Behavior or Button Functionality of zigbee?

best regards


Michael Schmidt asked
Michael Schmidt commented ·

3 Answers

Second ET112 powermeter to Cerbo GX.

I have connected ET112 powermeter to Cerbo GX. Now I want to connect second powermeter. Can I daisy chain on the ET112 or do I need a second USB to RS485 cable.

BBrouwer asked
Daniël Boekel (Victron Energy Staff) answered ·

2 Answers

Possible faulty Carlo Gavazzi EM24 three phase energy meter?

Hi Guy

We have a three phase setup installed (three MultiGrid 2) at one of our client’s residential house. We received a call from the client letting us know the system is down, on arrival there were no errors only a down system. We were busy fault finding and an error came up saying phase rotation error. There was a fault from the municipal department the previous day (complete power outage for almost the entire day) we reprogramed the system and confirmed with the municipality that they might have rotated the phases (hesitating to confirm 100%). Now the system is basically working perfectly again but the readings from the colour control does not add up, we are not sure what the fault is but we think it’s the energy meter that got damaged, do you have any advice what the problem could be?

The system is programed not to feed-in excess solarcharger power to the grid but as you can see there is a reading off -2199W (Grid L3). This reading bounces around between the phases and it does not make any sense as the 563W from the grid along with the PV Charger 1962W does not add to the load of 5353W.

Grid: 563W

L1: 2704W

L2: 57W

L3: -2199W

AC Loads: 5353W

L1: 5171W

L2: 181W

L3: 0W

Critical loads: 10W off at that stage (by-pass)

PV Charger: 1962W


Burger asked
Daniël Boekel (Victron Energy Staff) commented ·

1 Answer

CerboGX, ET112 and Shore power


I have a setup with the Cerbo GX, ET112, BMV712 and a Quick 12v battery charger in a boat. I have the ET112 in-line on the shore power to monitor load. No inverter or Victron charger in the setup by now.

On the GX I can see the ET112 and the power passing through it, and it reports itself as grid. Is there any way I can change this to shore and configure an alarm/notification if disconnected?


vga asked
vga edited ·

1 Answer

3 Phase Supply, 3 Phase PV GT Inverter but Single Phase MultiPlus II - TWO Questions:

Hi Expert Community,

I have a site planning a 3 Phase Fronius but wanting to ESS optimise and Backup on ONE Phase only using a MultiPlus II.

Question 1: Can I use a 3 phase Victron Energy Meter (ET340) on the Grid Supply to control the Single Phase MultiPlus (obviously Via a GX device) ???

Question 2: How will the DATA of the Fronius be displayed and logged on the GX and VRM?

The customer wants all the data to be visible and accurate on the VRM Portal (of course!) but I am not sure how the Load will be calculated across the three phases - especially the backup/ESS phase.

Ben Stanton asked
stxShadow edited ·

1 Answer

Multiplus - modbus - grid tie solar 3ph - use spare energy

Hi, I have a house with a 4kW GT system on FIT on phase A

I have added a 12kW array which I am planning to split over phase B and C.

I want to use a multiplus II as a smart inverter/charger from a lithium battery to store excess energy from any phase.

My supplier meter is net metering (non smart). So what I (think I) need is my own net metering meter which talks to the Multiplus and tells it to charge or discharge the battery to keep the import/export at zero. However this will only be pulling off one phase. This is why I need the external meter. If I am exporting 1kW on phase B and C (for example), with no import, but the Multiplus is on phase A, it can still import 2kW on phase A with no supplier charges.

I have researched Modbus meters but I just wondered if anyone had done anything similar - presumably I need an interface between the Modbus and the Multiplus to convert Net Export Power into Victron charge now Power.

I will have a zappi car charger and a DHW store system to soak up the excess energy. Ideally this would be priority order

1. Car (if present)

2. House batt

3. DHW cylinder

4. Export.

Although I would be willing to always do House first if that is less complicated (the zappi and DHW system will communicate internally but I don't know if they would communicate with the Victron).

I believe delays can be programmed such that the Victron could have a shorter delay on start up than the Zappi which would ensure the house batt gets priority over the car.

Of course as the car isn't always there I thought that would be best if the car got first dibs as hopefully if its a sunny day the house would get a chance later after the car leaves.

I should be good for producing approaching 16000kWh per year with this system (the 1year old original 4kW array made close to 4000 in a year and the 12kW array is less shaded)

My background is Marine - off grid so use a lot of Victron products. I have used R pi a bit so I guess this or Arduino could maybe be a useful interface if there isn't a premade solution available.

Thanks in advance


olly12383 asked
Catraz commented ·

2 Answers

ET340 via Modbus/TCP ?

Hello, i am new to Victron and want to set up a larger battery system 3 phase etc.
ET340 is already installed, but it is far away from the battery location, unsuitable to run long 485 connections.

Is there a way, has someone experience, to convince the GX controller to use Modbus/TCP to talk with the ET340 (via a modbus/TCP to RTU bridge of course),

Has anyone experience in or tried to bridge Modbus/RTU over IP (wifi, ethernet etc) ?


jacola asked
DayAndNight answered ·

1 Answer

Mutliplus II + ET340 exporting power

Good day everyone,

I have a setup similar to this: except my single multiplus II 5kVA is setup on L2 instead of L1. There is an ET340 to monitor the phases as well as non critical loads beween the meter and AC in of inverter.

The system is setup in ESS with solar. Unfortnately it is exporting power out to the grid on instead of zeroing that phase. I have tried turning phase compensation on and off to no avail.

I have tried all the settings I can think of to try stop it. Is it because I am using L2 and not L1?

speeddemon91 asked
stxShadow answered ·

1 Answer

ET340 grid meter – how to find out the connection parameters ?


my system contains a ET340 grid meter that is connected to a Venus GX device via Victron RS485 to USB converter cable.

As I’ve done years ago, I tried to connect the ET340 directly to my notebook with the same converter cable. Unfortunately I do not know the connection parameters anymore (baud rate, start/stop bits etc) in order to connect the Gavazzi Universal Software Configuration tool to the ET340. I aborted the automatic search after over two hours.

Is there a way to find out the hardware connection settings in the GX device (baud rate etc) in a config file or so? The Remote console shows only the device instance and a few other details.

Thank you and best regards


RainerB asked

0 Answers


I will be adding my solar panels this weekend to the boat and want to check where I should have fuses.

At the moment the wiring from the 4x 150W panels will be 2x parallel then the 2x parallel in to series before going to the Victron MPPT 150/60 via MC4 connections. Should I have a fuse on the +ve input to the MPPT? There is then a 32A DC DIN Mount Breaker 125V MCB C curve on the +ve going to the batteries.

Secondly i’ll be putting an ET-112 from my onboard generator to give me power info to my Venus GX (no multiplus or Quattro onboard) I see there is a fuse to go on the neutral side of the ET-112 but it doesn’t say how much it should be, the generator is a Paguro 4SY, that puts out 3.5KW @230V.

Bora asked
njordan answered ·

2 Answers

Is it not possible to use multiple energy meters (ET112) on one CCGX?

We are trying to measure the energy consumption of individual air conditioners, using one ET112 for each and collecting the data through a CCGX but we only get one displaying. Is this not possible?

Per-Erik asked
Eike Pachernegg commented ·

2 Answers

SMA Energy meter for ESS

Self-consumption system with SMA on-grid 3 phase inverters and SMA energy meter.

Is it possible to make ESS with victron quattro with PV inverters connected to the AC-in (hub-4)? Can victron work with SMA energy meter as a grid-meter?

andrew.b asked
mitchese answered ·

3 Answers

Easysolar II with ET340 connected with zigbee DRF2618A


i have a question for connecting ET340 with Easysolar II GX.

did i understand right that the RS485/USB Zigbee the only device i need for this?

so somply connect ET340 with RS485zigbee and the USB Zigbee with USB Cable in the USB Port of Easysolar II?

best regards


Michael Schmidt asked

0 Answers

Technical Capability of Victron ESS system where export must be zero

Can Victron Energy be used in the way I Describe below?

I want to take 35 KW's of power from the roof, pass this to a number of parallel Victron MPPT charge controllers. From here the energy will go in to a lithium battery. From the lithium battery there will be a parallel connection on to a grid connected inverter. The grid connected inverter will assess the loads in the property and use the energy storage and the available solar simultaneously to power the loads. It's very important that the inverter can be controlled as a function of measured demand rather than export. I'll say that again - It must work off demand not export.

I see people are having issues with battery charging in the UK with SMA and Victron where grid export is limited by throttling or limited to zero. The reason is twofold. Firstly, these energy storage systems work as a function of exported energy. Secondly, a 1-second compliance limit is enforced by the national grid. Generators must be able to switch off or throttle down power output before export capacity is exceeded. Within 1 second. The problem is, inverters are throttled down or turned off before the energy storage system had a chance to act as a load and open the switch. Thus, batteries are not receiving the full charge.

Inverters are throttled or turned off to stop export. But the export is the message which tells the battery inverter to turn on and charge. Because the inverters are throttled or turned off before the energy storage charger turns on, the system deems there to be no export available. The reality is, lots of surplus power has been turned off.

What would you suggest is the best solution for a grid connected system utilizing export management and energy storage? Can your solution act as above?

If we use a grid connected inverter, is there a way we can tell the inverter to ramp up and down to meet property demand?

project eco asked
Guy Stewart (Victron Community Manager) answered ·

1 Answer

ESS + Multiplus II + ET112 = backfeed?

Good day all,

So living in South Africa, any amount of backfeed causes our utilities "Smart" meters contactor to trip and disconnect the utility grid.

I have 12x330W solar panels and 48V battery bank. Every now and then I did see some small backfeed even though the option to "Feed-in in excess solarcharger power" is disabled which tripped the utility meter and they had to come out and reset it in order for it to work again.

I setup in my ESS Grid set point to 60W just to have some kind of pull and I am not too happy to increase that further.

Very simple question - would installing ET112 Energy meter between the utility "Smart" meter and my Multiplus II prevent backfeed to the grid?

Bobby asked
Kimmo Paukku commented ·

4 Answers

Max cable length for system setup (ESS with Venus GX)


I am planning a ESS setup for a new house that will be built within the next month.

The solar system, batteries and inverter should be placed in the garage - while the needed energy meter (EM24) will be placed in the house. There will be a separate cable for the inverter (power) and two CAT7 cables for network.

While most of the components are placed in the garage, I do not see any problem with the cable length for the components - battery pack (16x 150Ah LiFePo4 cells -> 48V system) BMV-712, SmartSolar 150/100 VE.Can, MultiPlus-II 3000VA.

But there will be approx. 25 meters between the energy meter and the Venus GX.

As far as I have seen the maximum cable length is 5 meters?!

Can someone please point me in the right direction for the placement of the products - would it be correct to place most of them in the garage or are there better solutions?

If you should need any further information, please feel free to ask.

Kind regards,


Wulffi asked
Wulffi answered ·

2 Answers

Multiplus-II + ET112 + Current Transformer


I have recently switched from the CT to the ET112 and noticed something odd

I have a Multiplus-II 3kva + ESS + 140Ah 48v Li-Ion + Batrium BMS (CAN-Bus) + Cerbo GX + PV on ACin

Everything is working fine expect I have noted the following oddity

I was uing the CT and could see the MP2 quickly adjusting to the PV lows and spikes during cloud movment and demands on the ACin during normal operation mode, but since switching to the ET112 I was able to see the MP2 is now really very slow at adjusting the inverter power output and charging, so much so that I can see 1.8Kw export happening from the battery when the sun comes out for 5+ seconds and importing while charging due to the cloud covering up the sun, this is very odd becasue with the CT it was super quick to change and keep the grid at Zero import or export.

I think because the metering has been moved to the Cerbo GX this now has to tell the MP2 to adjust I just wasnt expecting it to be so poor at controlling it with such a slow delay

Everything is working fine just really slow, I'm not runnign anything extera or doing anything extra with the cerbo gx, it is however in superuser mode running v2.52 (came out the same day the cable arrived to pulg in the ET112 so unsure if its a v2.52 related or just expected behavoiur) and i have node red connected to it, no perf issues though and only 1 flow (your charge at night flow) connected to it. Top is not showing any processes that would slow this device down.

Is this expected behaviour when using a ET112 or any Grid meter?


Mark Boys

Mark Boys asked
JGD_ESS answered ·

1 Answer

AC Coupling with non-Fronius inverters and export power limiting

Hi All,

Here in South Africa we are more often than not, required to prevent power being exported beyond the Meter (Grid).

We often encounter homeowners who have already invested in a solar power system, with some form of grid-tied inverter installed.

The typical upgrade involves installing MultiPlus or Quattro Inverter/Chargers with some form of lithium battery bank.

The question arises with regards to how we incorporate the existing grid-tied inverter?

If it is not a Fronius inverter, then we cannot use the "Fronius Zero Feed-In" functionality through using a single energy meter (Carlo Gavazzi ET112 or ET340).

If we retain the existing grid-tied inverter's export limiting device (current sensor or energy meter), and continue to implement an energy meter for the Victron system, then how should it be set up? Which device should be installed first in line? Should we set a buffer/threshold on one of the systems to ensure that they do not compete to achieve grid-power = 0 (or other set point)?

I foresee that the two different export limiting control systems will compete against each other and may result in instability and/or poor performance.

Any insights into this?

Nicholas Herbst asked
Nicholas Herbst commented ·

1 Answer

Is it possible to extend the zigbee range with a repeater, or use an RS485 wireless bridge to extend the RS485 (without cables)?

This may be an academic question for the moment, however a customer is keen to have an energy meter approx 100m (and several walls) away from the CCGX and installation. The standard zigbee may not be enough; are there any known supported zigbee repeaters that might work for this purpose or a longer range, higher power unit? Alternatively would the ET112 RS485 signal support an RS485 wireless bridge? Thanks

midsummerenergy asked
arjanbijker86 answered ·

3 Answers

VRM shows double the grid power after ET340 installation


Hi Yesterday I've managed to replace my main electrical panel of the house. I have a 3 phase grid, but I'm powering the house with only one phase (in the new panel, I have installed also a phase selector). Still, ET340 is installed to measure all 3 phases between the grid and the phase selector. The connection to Color GX was done via Victron RS485 interface. The ET340 is visible on ColorGX, is showing all the phases connected (yes, the L2 is done since long time), counting the power (the left led is turning green/red) The only question I have: is it normal that on VRM portal the consumption to be shown as: 2 times the grid + pv inverter? See some pictures below







Cristian Miclea asked
Cristian Miclea answered ·

3 Answers

No grid meter installed feeding excess power back to the grid.

If the grid fails would the inverter still feed excess power back into the grid with no grid meter installed? Ess setup with feed excess power back on.

Victron quattro 10000

Color control

Mppt 250/100 asked
iRomeo answered ·

2 Answers

RS485 cable query

Am I understanding this correctly?

The RS485 victron cable does not have a rj45 attached to the end and I need to add it my self using only the orange, yellow and black wires?

What do I do with the other colour wires?


Mark Boys

Mark Boys asked
ejrossouw commented ·

2 Answers

Measure PVinverter on ACout with ET112

Hi, I want to see all of my incoming PV energy(DCcoupled + ACcoupled) in the VRM statics.
Currently setup:


multigrid 2 48/3000(all house loads on ACout and a 1kW PVinverter)

1,5kWp DC solar with mppt150/35


8kwh LiFeyPo4 with 2-wire bms (48v)

if I place an ET112 on the ACcoupled inverter, how does it looks like on the remote console and does it counts incoming solar together with the incoming solar from MPPT So I can see on the dashboard the total incoming solar and total usage?

Tommas asked
Tommas commented ·

1 Answer

Designing an ESS with 10 year old Sunny Boy 5000-TL

I'm designing an ESS using a Multiplus II and 10 year old SMA Sunny Boy 5000-TL AC coupled on AC out 1. I like to display the output power of the SB at the Colour Control. I like to use the CG Meter ET112 at the output of the SB and connect it to the USB port of the CC. Can somebody confirm if that will work.

karlheinzhaller asked
Daniël Boekel (Victron Energy Staff) answered ·

1 Answer

Energy meter not recognised/displayed on color controller GX


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?



Cbaelectrical asked
Lazza edited ·

6 Answers

Can a Victron Energy Meter be used in a US RV with split phase 120/240V 50A wiring?

I'd like to be able to monitor grid or generator power usage on an RV installation. The system has a Victron SmartSolar charge controller, MultiPlus charger/inverter, BMV-712 battery monitor and Color Control GX display. The MultiPlus is on a branch circuit off one of the 50A legs of this typical US split phase 120/240V 50A RV setup. The Multiplus only reports grid or generator power usage for the 4 circuits that are on a sub-panel on the output side of the charger/inverter.

I'd like to be able to see all grid or generator AC power being used by the RV, and it appears that this would require a Victron Energy Meter. It's not clear to me though if any of the models available support split phase, and if they do, whether the Control GX can be configured to display that data in lieu of the incoming AC power data from the MultiPlus.

techie4hire asked

0 Answers

Re the ET340 Grid meter and a GX Color control and VRM data displayed

Is there a way to get Frequency and Power factor to display on the GX or on the VRM graphs

Also the Gateway VRM does not seem to log the Voltage and amps in its graphs for the Energy meter, is there a way to turn this option on



Paul B asked
Daniël Boekel (Victron Energy Staff) answered ·

1 Answer

Is it Posable to only use a ET340 and a GX Colour control and a bmv712 (No Multiplus/Quattro)

Hi, I have a client who wants me to install a generator/Dc monitoring system without any Multiplus or Quattro in the mix etc, at this time. but one will be added latter (Stage two).

So can I install a ET340 and connect it via its RS485 to USB cable directly to the CCGX and then a BMV-712 to monitor the Victron battery chargers via the DC through the BMV shunt and ve direct connection back to the CCGX, and the incoming Generator voltages and power through the ET340.

Generator autostart will also be added based on battery voltage or SOC

We want to see the incoming Gewnerator voltages and power and yes the outgoing load on the CCGX will be the same as there is no inverter at this time,and some off the flow charts maybe incorrect as well, (we can live with that).

Then connect via the VRM via the internet to monitor the Generator system voltages including voltage sage and power usage using the vrm logging.

This is there stage one for monitoring the generator for the moment when its running

I am hopping that for the moment we can leave the inverter/charge out of the system.

So is the above possible.

Paul B asked
Daniël Boekel (Victron Energy Staff) answered ·

1 Answer

Quattro 8kVA Demo - should I, shouldn't I?

I am currently looking at an offer to purchase an 8kVA demo unit over a new unit. The cost saving is about 37% and the retailer is offering a 2 year warranty. It seems a good deal to me. Does anyone advise against it and why?

SJZA asked
SJZA commented ·

1 Answer

ET340 Meter - Upside down installation

Hi and sorry for such a stupid question.

Is there any issue/risk in installing the ET340 upside down? Meaning with the connection points 1-3 (grid) downwards? My grid connection comes into the electrical box from downside, so for the sake of keeping it clean and cables as short as possible, I would install it like this.


Cristian Miclea asked
Cristian Miclea answered ·

2 Answers


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