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ET112 Volts and Amps

My small system is 200amp batteries, CERBO GX, SmartSolar MPPT 100/30, BMV-712 with temp, and an ET112 Energy Monitor. Everything working great, connected to VRM with a Verizon MiFi. I can see the ET112 as wattage on VRM. Maybe not where I would like on VRM but can see it.

Is there a way to show Volts and Amps from ET112? Thank you.

shicks3 asked

0 Answers

et112 energy meter with 120v

im in US so i have 120/240v power, I have a grid tied 48v quattro system to provide backup to critical loads + solar array which produces a lot more power than my critical loads need, i wanted to add et112 energy meter at my grid input and push power back to other loads but not the grid (seems pretty standard setup) so i ordered et112 + usb serial cable, it got here and on et112 it says 230v not 120v, manual states av0 part number is for 230v and av1 part number is for 120v, problem is that i cannot find this av1 part numebr anywhere, victron only shows one model number and doesnt specify voltage just amperage, so will 230v part number work on 120v system or do i need some special part? anyone can help i would appreciate it



audreez asked
squarej answered ·

2 Answers

Display Grid meter data on VRM advanced


I don't see my grid meter in the widgets menu on the advanced VRM page.
I would like to plot the voltage and current of every phase, is this possible?
I don't have a 3 phase inverter setup, inverters are only on 1 phase.



shaneyake asked
wkirby answered ·

1 Answer

Zigbee-usb setup failure


We've used the zigbee-usb to zigbee-rs485 to link the Et112 energy meter to a ccgx before. First time straight out of box followed the victron manual (ie just plug it in!!) and it worked.

Second one didn't so brought another set, worked

Brought another set didn't work but that was doe to the 2nd matched with old.

had another 2nd sent out, worked in the workshop, got to site and it didn't work

brought another set tried in workshop and doesn't work!

we've now accumulated 5 zigbee-rs485 and 2 zigbee-usb and have a system that's not working!

Brexit means I can't get another pair so somehow need to get a set working. Phoning suppliers and victron sales hasn't helped as no one appears to know anything about how the zigbee's work they just do!!

Obviously not all the time as there are other posts but no conclusions!

the symptom is the zigbee-usb plugged into the ccgz has solid active light only. Zigbee-rs485 has rapid flashing active led only.

random pushing of reset and function buttons on the zigbee-usb will put both lights out (pushing reset goes back to initial state of solid active light)

Pushing buttons on the zigbee-rs485 will change the flashing LED pattern but once pushed it doesn't seem to go back to the initial rapid flashing active LED only.

Does anyone know anything about these devices and what to do if they don't work straight out of the box??

duncan-lee asked
duncan-lee answered ·

2 Answers

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
duncan-lee answered ·

4 Answers

Struggling with the final step.

I am setting up a system with a bmwi3 battery , multiplus ii , mppt 250/60 , mppt 150/100 and a rs450/100 . I was supposed to be doing this with my father in law who is an electrician but COVID has put paid to that for the moment. I have everything up and running the way I want it using the ESS assurant but I’m struggling with the final step of connecting it all to the house due to a lack of understanding.

I’m planning on winter months using a 4 hour cheap rate tariff to charge the battery from grid to complement the solar.

I have a et112 that I think ( correct me if I’m wrong ) needs wiring in between the main incoming fuse and my consumer unit. I’m awaiting a smart meter and isolator before attempting that :)

If correct I think I can work that one out o.k. However, I have some confusion over ac out and ac in. . I’ve read somewhere that ac in is bi-directional so am I simply running a cable from ac in to my supply after the Carlo gavazzi ? Or do I run a cable from ac out to there and a power supply in from my consumer unit ?

many help would be appreciated and if I’ve missed out any necessary information please let me know.

chapelier asked
chapelier commented ·

1 Answer

ET340: How to reset the total kWh counter?


I have an ET340 that was used as a grid meter. Then was moved to be the solar-meter now, while an EM24 replaced it on the grid side.

I would like to reset the ET340, so I know my solar yield.

I couldn't find information about this on the net. So I asked Gavazzi... they said, it is possible, but they are not allowed to tell my why, because of security reasons (if I would write what I think of them, it would violate our community policy ;-) )

So i'll try if someone here knows how to do it... maybe with the Gavazzi software?



danielw asked
tabrocky commented ·

2 Answers

ET340 no communication

Hello experts,

I am not able to establish communication in system of:

Venus OS (Raspberry pi 3)

Multiplus II 48V/3000 (external wired Current Transformer sensor connected)

ET340 Carlo Gavazzi


MK3 VE Bus USB cable

VE Direct USB cable


I am able to communicate to ET340 via recommended USB-RS485 interface with PC to Carlo Gavazzi UCS7 original SW. But no response after plugged USB-RS485 interface to Raspberry pi. Just immediately after USB-RS485 plugged to Raspberry the LED (red and green) flashes approx. 1 second. Power meter ET340 is not visible in system (Setting-Energy meters).

I have tried a lot of variants (Address, Baud...) a lot of Reboot but no communication at all.

What is wrong? Do I need to setup anything?

radim-1 asked
tabrocky answered ·

5 Answers

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
tabrocky answered ·

8 Answers

Connecting ET112 with VE Bus ?

Is there any known reason why the ET112 Energy meter does not connect via VE bus ? Seems a little odd having to run a 2nd CAT 5 cable from the remote installation to the CCGX / USB interface, when the meter is mounted right next to the MP II that has an unused VE bus port...

erik-hansen asked

0 Answers

Sonde courant PV et sonde de courant réseau AC sur installation avec onduleur AC et DC

Bonjour à tous,

Je viens de finir l'installation d'une seconde production PV AC en complément de ma production PV DC avec batteries.

Voici un schéma succin qui représente mon installation. Je n'ai que des charges critiques connectées au Multiplus. Les autres charges plus gourmandes sont en directe sur le réseau.

Mon Onduleur Delta n'a pas de protocole de communication Victron je suis donc obligé de passer par une passerelle de type ET112 ou autre.


J'aimerais pouvoir connaitre deux choses :

La première, la production PV AC de l'onduleur DELTA connecté à l'installation et pour la seconde : la puissance soutiré ou injecté en tête de réseau EDF.

1 : Production DELTA.

Pour cette solution j'ai installé un ET112 à la sortie AC de l'onduleur puis connecté au CCGX (cercle rose ET112).

Dans le menu liste des appareils, j'ai défini le ET112 comme convertisseur PV sur ENTREE CA 1.

J'ai nommé l'appareil DELTA RPI 4Kva. Il est bien vue dans le menu du compteur d'énergie.

Dans le menu de l'ESS, le comptage réseau et sur CONVERTISSEUR/CHARGEUR.

Voici le CCGX :


Les données échangées sont juste. La puissance du chargeur PV et du convertisseur PV sont bonnes et les batteries sont utilisées. Par contre les charges CA et Critiques sont regroupées. Le convertisseur PV devrait plutôt être connecté sur le réseau plutôt que dans le Multiplus ? Mais cela fonctionne bien.

Si par contre : Dans le menu de l'ESS, le comptage réseau et sur EXTERNE

Avec de la puissance PV tout va bien.


Mais en l’absence de puissance PV :


Par contre les batteries ne sont plus utilisée ! même avec un SOC de 88% !!! Mauvaise situation !!!

Pourriez-vous me guider dans les paramètres ? Je pense que régler le comptage réseau sur EXTERNE ne doit être que si j'ai une sonde supplémentaire ? voir ma question n°2

De plus Je ne comprend pourquoi dans la liste des appareils j'ai une seconde ligne avec l'onduleur DELTA RPI 4Kva qui se trouve pas connecté ?

2 : La puissance soutiré ou injecté en tête de réseau EDF (cercle rose ??)

Je pense que pour connaitre cette information je dois ajouter un compteur d'énergie supplémentaire. Soit ET112 soit sonde de courant externe ref (CSE000100000).

Ainsi dans l'ESS le comptage réseau sera sur EXTERNE et lira le nouveau compteur d'énergie ?

Merci de m'apporter vos lumières sur le réglage de l'ESS. Si j'ai besoin d'ajouter ou de déplacer une sonde de mesure.


mika2a asked
mika2a answered ·

6 Answers

ET340 oder EM24 für Phasenkompensation mit einem Multiplus 48/5000

At the moment nobody can tell me exactly what kind of energy meter (ET340 or EM24) I should use for phase compensation.

I have a Multiplus 48/5000 in island mode. The ESS would like to use the phase compensation and the connection to the public grid.

As far as I know, the ET340 is newer and measures all 3 phases individually. But there should be problems with this. In many forums the suggestion is made that one should switch to the EM24.

What's the right way now?

I would appreciate an expert statement.

Best regards


Thomas Heins asked
Thomas Heins answered ·

3 Answers

EM24 Modbus/TCP - Use for Sub-metering different buildings

My client wants to measure power use in each room in his Safari Lodge, actually he wants to measure 8 different DB boards which are distributed around the safari camp, it is going to be a 90kW or a 135kW parallel quatro/fronius ESS system

I have an existing DB cabinet where an isolator for each DB board lives, so I can install a second row of 8 * EM24 meters (Modbus TCP) an ethernet hub for the 8 meters and use the Carlo Gavazzi software to provide management reports for the owners of the Safari Lodge, I can even install the cerbo before the rest of the solar system, either way I will then know for sure which I need a 90kW system with 75kW panels and 160kWh battery or a 135kW system with 100kW panels with a 240kWh battery

So the question is what do I do about the Cerbo GX, will it recognise all 8 EM24 devices as Grid input (is there a limit on number of em24's specified as grid input or a modbus limit ?) and will it list all 8 as separate devices and aggregate their power into the Grid input total on the touch 50 graphics, will this work . . .? or will I end up having to install a 9th em24 device just for the Cerbo with 3 * 400A CT cables to measure the 120mm Grid transformer cables before they are split up into the 8 DB boards

ccc-telecom asked
wkirby answered ·

1 Answer

multiple energy meters

I am designing a rather complicated 3 phase ESS system which requires 5 energy meters to monitor different renewable AC inputs. Can I use a USB multiplier on the Cerbo GX and hard wire them all using the RS485 to USB cables?

jamie-robinson asked

0 Answers

How to change the CT ratio on the EM24

How to change the CT ration on the EM24

hendrik asked
markus answered ·

1 Answer

conflicting meter readings




We inst


inalled a smart meter at the main incomer on a 3 phase supply. We only have one Multi on L1, but client want to see usage over all 3 phases. Now the readings sometimes does not add up as per attached pictures

L1 uses 798W of energy but does not show from where...

info-4 asked
Paul B answered ·

1 Answer

Cerbo Gx with ET112+Smart devices

This is the equipment I have:

  • Cerbo GX and GX Touch 50
  • 2 x ET112 connected with 2 RS485 to USB Adapters
  • SmartShunt 1000A connected via VE Direct Cable
  • 3 Smart Battery Sense
  • 1 Orion-Tr Smart 12/12-18 isolated


1 Et 112 to generator Output

1 Et 112 to Shore power line

SmartShunt to Service battery

1 Smart Battery Sense engine battery

1 Smart Battery Sense thruster battery

1 Smart Battery Sense for a secondary battery

Questions :

  1. How can I connect the Smart Battery Sensors to Cerbo in order to get voltage information?
  2. If the above is not possible, how can I get voltage information from other batteries?
  3. How can I insert the on AC Input to show me voltage of the grid?
  4. Is it possible to have separate information for the Generator output?
  5. How can I setup an alarm whenever the shore power is being disconnected?

martinis-thanasis asked
wkirby answered ·

1 Answer

Can I use a Schneider energy meter in ESS?

can i use Schneider energy meter in ESS Victron system to do the self consumption function in stead of Victron energy meter

ola-ali asked
Rob Duthie answered ·

1 Answer

Can I use an ABB energy meter with the Venus?

I have an ABB B21 Energy Meter on my mains supply. Can the Venus be configured to use this as the Grid meter and how?


Hugo Russouw asked
kurtinge answered ·

3 Answers

Zigbee Range


I am trying to get an ET340 onto a Victron system via the zigbee devices. The ET340 will be connected as a PV Inverter meter and the PV inverter is installed roughly 200m away through 2 walls and a open field. I tried installing it and the two zigbee devices never picked each other up.

So I tried at home with a single battery and mobile CCGX and it looks like the maximum range I can get is roughly 50m with a single metal garage door in the way.

This is no where near the advertised 1600m range of these devices.

Is there any suggestions on how to extend the range or actually achieve the range stated in their product sheets?

Matthew Walsh asked
simen answered ·

1 Answer

MultiPlusII Overreading Grid Power Value

I have a single phase 15kw system with three MultiPlusII inverters in parallel. There is no grid meter. The system is linked to four 150/100 MPPTS, with ESS set with battery life. I have noticed that recently the VRM Portal and the Cerbo shows that the incoming grid power (AC-In L1 Watts is in the region of 1.4-1.7kw, but the AC Input is 222Vx-3,5A (-777W) and the Wattage on AC-In L1 is showing 1755W, which is way higher. The Same is true for the output. What is causing this completely incorrect reading on the Power?

I have ESS set with a GridPoint of -200W, but the system continually shows a draw of around 1.4kw.

I have attached images from the Cerbo GX.


blip15 asked
Rob Duthie edited ·

1 Answer

Second Energy Meter deleted but remains on GX Device

Client had an ET340 and then changed mind and got a single phase supply and replaced ET340 with a ET112.

I deleted the ET340 that "had not been seen in x days" from Device List, but it is still showing in Venus OS and the readings we're getting on VRM are bull:


Feed in is disabled, setpoint is 50W:


Device list:


warwick asked
warwick commented ·

1 Answer

Et112 power


Does anyone understand this, Amps are 2.2 the wattage is 50W, and the voltage is 236V

The amperage is way off from it should be ?

As I reading this wrong?

betaoil asked
apple047 answered ·

1 Answer

Energy Meter ET112 + Cerbo GX


It is recommended in the ET112 manual to use an RS485 to USB cable. This is what I'm going to do to be Ok.

But I read at the bottom of page 4 (pdf): "The red, green and brown wire coming out of the USB to RS485 cable are not used. Note: You can wire on a RJ45 plug which can plug into the front of either RJ45 socket of the Energy meter, it has the same pin out. "

It is understood that it is to lengthen the cable.

I'm curious and my question is in two parts:

- what are the two RJ45 sockets on the front of the ET112 for?

(Matthis replied in another post that these are not ethernet sockets).

- can we connect an ET112 and a Cerbo GX in RJ45 to RJ45 (Cerbo's BMS-Can socket)?

Thank you in advance for your answers which may help other people.

Kind regards

Serge Della Signora asked
Serge Della Signora answered ·

4 Answers

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 commented ·

1 Answer

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







cristimv asked
mirko-iog answered ·

4 Answers

EM24 Smart Meter read out over Modbus TCP/IP


the Smart Meter connection to the Victron controller via Modbus RTU (RS485) is only wisely in case you have a short Way between the Smart Meter and the Victron Controller.

In case you have a long way or different buildings the connection over TCP/IP is required.

To prevent to install a separate RS485 Bus Cable. (using structured cabling !)

Installation Example:

#######Buildings-A############ ###Buildings-B###

EM24 -->RS485-->Modbus TCP Gateway---------TCP/IP---------------->CerboGX

Now the Question:

How can i add the Smart Meter Connection via Modbus TCP/IP to my Cerbo GX?

(FW 2.60)

jxa asked

0 Answers

Can I use a Carlo Gavazzi with a Venus GX for remote energy monitoring.

I need to monitor the power consumption and peak power for a hotel prior to specifying a Victron Energy Enhancement system. Can I use a Carlo Gavazzi with a Venus GX and the VRM portal to remotely gather data prior to specifying the system. I need to monitor for about three weeks. There are a number of applications that could use this system prior to specification.

Chris Dobson asked
wkirby answered ·

1 Answer

current transformer

Is there now an alternative to hard wiring an energy meter.

Specifically I am after a current transformer for my multiplus, not MPII

main constraint is there is not room to fit an energy meter on the mains incomer.

betaoil asked

0 Answers

Energy Meter for 3phase 150A with CTs for ESS System

I am struggling to find a way to connect a meter for 3phase ESS system which is greater than 100A. None of the Carlo units are able to use CTs except for the Carlo Gavazzi EM24DINAV53DISX which doesn't seem to be available anywhere. Does anyone have any ideas on this please.

greg-walton asked

0 Answers


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