Hello Together,

I'm trying since a week or so to connect my MultiPlus-II GX wthy my BMS, which is an Daly 16s 48V 250A BMS. It has communication interface (RS485/CAN) and I set it with the PC-Monitor Software to VICTRONENERGY/CAN. I have also the Daly Interface Board (WNT) that they set to Victron Protocol, as they said, before they send it to me.

This is how my Setup looks like:

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I also created an customized RJ45 Cable for VE.CAN so they communicate together correctly:
--------------------------------------------------------------------------------------
VE.CAN Side <-> DALY INTERFACE BOARD SIDE
Green/white GND 3 - 3 GND green/white
Brown CAN-L 8 - 4 CAN-L blue
Brown/white CAN-H 7 - 5 CAN-H blue/white
--------------------------------------------------------------------------------------

Then I set in the Remote Console the VE.CAN to Other BMS and 500 kbit/s, in the Network status the packets are counting up correctly:

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But there is no BMS in the device list or the battery monitor list:

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This is how I set up the BMS:

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There is an video on youtube where they demonstrate that it is possible:
https://www.youtube.com/watch?v=bUpBq6-WklY

Has anyone managed to connect an Daly BMS to Victron via CAN? What do I need to do to get it work?

Here is the Datasheet of the Daly Interface Board (WNT):
DL-WNT-V1.0 datasheet of collection board.docx.pdf

Greetings Jack

Hi All

I have a "pylontech" (reality unbranded but shows up correctly in cerbogx CANBUS). connected to cerbogx

also multi RS connected to the VE.CAN on cerbo gx.

Cerbo GX shows correct battery state of charge.

but
however, the Multi-RS still shows the incorrect "state of charge" for the pylontech battery in its own "victron connect connection".

how do I rectify?

Hi everyone I have a solar system with battery using a Multi RS Solar 48/100

The Multi RS doesn't estimate the battery state of charge correctly so I'd like to connect the RS-485 / CANBUS from the battery to the Multi RS Solar.


the technical details of the battery connection is as follows:

RS485 and CAN interface, which supports communicating with multiple machines in parallel and with the upper computer.
RS485 baud rate is 19200, CAN baud rate is 500K.
RS485 INTERFACE

8P8C RJ45 Pins Assignment (RS485)
Pins Definition
1,3 RS485_B
7 RS485_A
2,6 GND
4 CANH
5 CANL
8 N

it also has a jumper for "victron compatible" output.


this is the battery from aliexpress... I'm using the 7.7kWh version.
https://www.aliexpress.com/item/1005004370280988.html?spm=a2g0o.order_detail.order_detail_item.2.7c0cf19c7zX5id


Now how should I go about connecting the battery to the Multi RS?

Do I use a BBB (with an add on CANBUS transciever and VE.CAN to CANBUS cable)

or

buy a cerboGX and connect multi-rs with VE.CAN cable and BMS with "CANBUS" cable

or

Can I connect the BMS straight to the Multi RS VE.CAN using a CANBUS to VE.CAN cable of some sort?

any help / advice would be appreciated

Hi everyone,

I am expecting a shipment of 16x280Ah prismatic LiFePO4 cells. It is my first experience with non-lead acid batteries. I understand that I need a BMS, but there is incredible selection and profound difference in cost between models. I currently have a Cerbo GX which I understand has two data busses, a CAN bus and a proprietary VE.bus. This paragraph is the entire sum of my BMS knowledge, +/-.

I want to find a BMS that integrates maximally with the Cerbo. I'm happy to pay for quality. I don't necessarily need it to be a "supported" solution by Victron, as long as it integrates well. In another group on DIY Powerwalls, Batrium seems to be the most popular name in BMS. Is anyone running a similar system to what I've described, with a Batrium BMS?

What other options do I have? I'm also impressed with REC-BMS, but it's very pricey. A couple other ones I've glanced at are 123Smart BMS, Tiny BMS, Chargery BMS and DIY BMS. Also Daly?

The two most important things to me are 1) safety and 2) integration with my Victron products. This will be a 16s, 48v (although it's not a strict design requirement) LiFePO4 battery with low-moderate current requirements (probably something like a 3000 watt inverter). Thanks for any input!

Hello! In my camper trailer, I have a Kisae BIC122080 Inverter/Charger that has a CAN BUS port on it (4 pin ATX I believe, manual doesn't specify). I have a Cerbo GX that I would like to connect to the Inverter/Charger if possible. Ideally this would show up similar to the native Victron inverter/chargers being able to show power input from shore power, AC loads powered by the inverter, and charging details for what is going to my battery bank. Does anyone have any idea if this is possible? I believe I would need to create a custom adapter cable to go from the 4 pin ATX CAN BUS connector to the RJ45 CAN BUS connector. I guess my main question is just around the feasibility of the two devices communicating and the Cerbo GX's ability to visualize and integrate the operational data of the Kisae unit. Let me know if there is any other information I can provide! Thanks kindly for reading.

I recently installed a dedicated shunt for my 24V Alternator/Wakespeed charging source (CAN connected to Cerbo and BMS). This is on a system with a REC BMS that provides its own battery current data (sensed by its own shunt) to the Cerbo via CAN.

Now when I'm charging with the alternator, the DC power displayed by the Cerbo and VRM is ≈2x what really is. I've looked around for settings on Cerbo, and read the documentation but I can't seem to find anything to correct the display.

Prior to installing the dedicated shunt and configuring the wakespeed to use it, DC Power was correct. My suspicion is the CERBO is adding the battery current to the wakespeed reported charging current, hence ≈2x.

I do have "has DC system" enabled because the majority of my system loads are DC. Any help would be appreciated.

I have the problem that the MPPT RS450/100
is not recognized by the Cerbo (VE.can connection)
The connection was made with a RJ45 network cable. (Also a replacement cable has already been tested).
What settings are required for the VE.Can in the Cerbo?
Are there any settings required in the MPPT RS450?

Any Ideas?

Thanks!

Which VE.can profile is required?

vecan.png

Hi guys,

I have a Huawei ESM 48100B1V1 battery (48v 100ah) connected to my Multiplus 2 GX 48/5000. No solar input, only grid.

My battery is not supported on the compatibility list. I would like to know how it can possibly be done as all the answers I have read so far have been pretty confusing to me.

The battery has a IN and OUT RJ45 com port and I have the pin outs to this. It provides 4 wire RS485 coms.

• complying with the Modbus protocol and YDN1363 protocol
• Baud rate: 9600 bit/s.

It also provides positive and negative can, which match the pin out on the BMS can of the multiplus.

I only have the one battery at this stage and don't see a need for an addition in the future. The battery settings has been programmed into the multiplus:

100ah

51.5 v float

54.5 v abs

The other question I have is, what real world advantage will I have by getting the battery can to talk to the multiplus can if I manage to?

And last question I have is, by adding a smart shunt connected to the VE bus, how does this change or effect anything I'm trying to do.

thanks in advance,

Rob

Hi,

I am looking to install a Multiplus-II / Venux GX with a BlueNova BN52V-100-5.2k BP but am unsure what the the correct CAN cable/wiring/ is as the available Victron documentation is not conclusive for me and does not exactly match the BlueNova specification:

• The BlueNova user manual (https://www.bluenova.co.za/wp-content/uploads/2022/04/BN%20User%20Manual%20-%20RacPower%20BN52V-100-5.2k%20BP%20with%20CAN_v103.pdf) specified pins 1-6 disconnected, pin 7 - 7 and pin 8 - 8.
• The Victron BlueNova compatibility page (https://www.victronenergy.com/live/battery_compatibility:bluenova) does not specify a cable type or pin out.
• The Victron Can cable page (https://www.victronenergy.com/live/battery_compatibility:can-bus_bms-cable) has two different/additional pin outs and does not specify either Type A or B as compatible with BlueNova BN52V-100-5.2k BP batteries.

Can anyone provide a reference to the correct Victron CAN cable type to use or confirm if the BlueNova spec is correct?

In my testing I have been using the BlueNova recommended pin-out and I am seeing the battery appear as a connected device,

[image]

but the Details Page do not appear complete.

[image]

Can anyone confirm the correct CAN cable specification for this combination and any other relevant related configuration information?

The system has been set-up following this configuration as a Backup System.

Thanks in advance,

Jonno

What functionality (if any) is available or activated if I connect two (non-Victron) CAN-supported batteries to a Cerbo and Multiplus? Specifically what does Victron support on it’s side , of course it depends on what information the specific battery/BMS is making available over CAN. I believe you can manually view the status, bank/cell properties etc, and set rules/triggers with each individual battery module. But can it do anything more advanced like totalize SOC of connected batteries? What would happen if you enabled DVCC? Or can it only recognize one of the connected batteries as the main and all else as auxiliary? I’m afraid I already know the answer since you can only use one smart shunt as a battery monitor. It sure would be nice to have the option to combine shunts or CAN-enabled batteries as ‘one’ just for the purpose of totalizing SOC at minimum.

I am planning a system around the Cerbo GX that includes:

• Victron Lithium batteries
• VE.Bus BMS
• Victron SmartShunt

I would like to interface with the Wakespeed WS500 alternator regulator that accepts VE.Can data to adjust charge rates/voltages.

Does the CerboGX VE.Can port output battery parameters (charge voltage, current limitation, battery current, etc)? Or does the CerboGX only listen on the VE.Can ports?

I have recently installed 8 x Pylontech RT12100G31 as a single 800ah 12v battery bank. The batteries are working (charging and discharging) and are interlinked for balancing. They show up correctly as a single bank in the Pylontech bluetooth app.

However, I have not been able to get the batteries to communicate with the CCGX. The CCGX is on the latest firmware (v2.92) and I have have a victron terminator in the other VE.Can port.

There is very limited information about these batteries online and unfortunately the instruction manual is very limited. I have used the following links for reference:

https://www.victronenergy.com/live/battery_compatibility:can-bus_bms-cable

https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom

I have wired the comms cable using the type B Pinout in the first link above as this matches the batteries instruction manual as below. I have tested the wires in the cables pin to pin to confirm continuity and correct pin matching. This has proven correct ... multiple times. I have also removed the VE-Can terminator and confirmed it has continuity and resistance of 120 ohms between Pins 7 & 8.

[image]

The table above shows Pin 7/8 being for RS485A /B. I have not wired this as it does not seem to map to any wire in the Victron VE CAN-bus RJ45 terminator and I know others with working integration between the same pylontech batteries and a Cerbo without this wired.

The documentation suggests that once correctly connected, configuration will occur automatically, but I have also tried manually turning on DVCC and configuring the VE CAN-Bus profile. I have tried all available profiles without success although I believe the correct one should be Can-bus BMS (500kbit/s).

Has anyone succesfully connected these batteries to a CCGX and can advise on what I could have wrong? Alternatively, perhaps someone with experience in connecting a BMS to CCGX can help?

Hello,

I am using a Victron Smart Shunt (aka Battery Monitor) feeding battery data to other components in my setup (e.g., MPPT charger). Please see my first two setup photos. I recently learned how to have my EG4-LL (version one) batteries to communicate with Cerbo GX (photos aren't showing the communication cables between batteries and Cerbo GX). As you can see from the other photos, I now have two Battery Monitors in my setup. Should I remove the Smart Shunt (it seems the battery communication has more data included, so I should keep that and remove the Smart Shunt)? I also like to know, if it is safe to have two Battery Monitors in my setup. It seems the Smart Shunt is reporting higher SOC value, however the reported charge current and voltage values are similar from both Battery Monitors (see photos, which are captured at different times). Thanks in advance for your reply...

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Hello,

i've 3 MPPT RS 450/100 connected via VE.Can to Venus GX.
At the end of the VE.Can bus are resistors connected.
I used normal UTP Network cabel cat.6. Max. Length of the cable is 3 meters.

Firmware MPPT 1.05
Venus 2.73

Remote Console
Settings/Services/VE.Can i cannot see any devices.

It seems the VE.Can is disabled ....

With the VictronConnect App connected via Bluetooth to the MPPTRS i found
no settings about VE.Can.

I hope everybody has an idea.

Thanks Thomas

I have a Smart Solar 150/100-Tr VE.Can connected by VE.Can to a MG Energy Master LV (With 2 x 200Ah HE batteries) and a Color Control GX. There is also a Multiplus 24/3000/70-16 connected by VE.Bus on the same system.

I'm having an occasional 'Error 67 - BMS connection lost' from the Smart Solar but I have unfortunately been unable to pinpoint what exactly is causing the issue. It never happens when the solar is isolated but randomly when solar is generating. It does not automatically recover unless I clear the issue by isolating our solar panels and reconnecting. Is this a known issue with Smart Solar VE.Can variants? Details are below. Many thanks!

Details:

DVCC Enabled

Smart Solar 150/100-Tr VE.Can Firmware v̶1̶.̶0̶3̶ v1.04

MG Energy Master LV Firmware v1.22

Multiplus 24/3000/70-16 (230VAC) Firmware v469

Color Control GX Firmware v2.51