Pytes V5 to Cerbo

DIY
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1

Please help on a new installation.14 x Bytes V5a to Victron system. Every 2 System uplink to DC Power distribution, always 2 Systems linked to its neighbor. Dip switch on all V5a are set to Victron → all switch down All system liked to one installation using uplink PORT 1 to PORT 0 RJ45 cable. Using special Victron uplink cable from Pytes CAN port to VE-Bus 2 on Cerbo. Second Port on VE-Bus uses provided Terminator for Bus. In Victron Portal there is a view of any RX/TX packets of VE-Bus 2. Count is 0 Please provide a solution on our communication problem.

2

Did you add the can terminator on the cerbo side?

Then plug a VE.Can terminator in the other VE.Can socket on the GX device. Two VE.Can terminators are included with the package of the GX device as an accessory, only one is used. Keep the other one as a spare.

That is the one that should be there.

3

hi, yes, provided CAN Terminator was used. I am a little bit confused since there is NO RX or TX visible on Dash. niene nada.
Is Pytes not sending or is Cerbo not receiving. Cable ist original from Victron and tested.
Any help is appreceated

4

Do you have the VE.Can (not VE.Bus) port configured for “CAN-bus BMS LV (500 kbit/s)? Are you using a Victron Type A BMS cable? If so, do you have it turned around right? One RJ45 is wired for VE.Can and one RJ45 is wired for the Pytes CANbus side.

5

Hey, thanks for quick replay,

and yes correct Cable is used in the right direction. Port is configured according to manual (lv 500). Still nothing is shown on the dashboard. Pytes manual is clear on setting → use CAN port.

Is there an issue on Victron?

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6

You are either mixing up ports / lingo / something.

The ve bus is not the ve can.

The terminator should be in the ve can. And so should the battery.

Either that or you are looking in the wrong place for verification

From the manual i linked in my first reply. The issue is more likely to be incorrect cable connection or setting, not a Victron problem, since youbare using an officially compatible battery.

Without properly connecting this cable, the battery will not show up on the display of the GX device.

7

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Looking into the manual, there is a different description as printed on system. On Cerbo it is VE CAN1 and VE CAN 2..

according to some manual, we were using VECAN 2. this might not be ok. Need to check on Monday

Cabeling is correct using Victron cable

8

The Mk2 Cerbo GX had some changes to it, for example what was once BMS-Can is now VE.Can 2

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Also both VE.Can can now be used for connecting to the BMS since both can be set to 500kbit BMS-Can connection

9

Try using a Victron Type A BMS cable or a second cable provided by Pytes, if you have another one. With a working cable, proper termination, and correct CANbus settings it should be plug-n-play. If I were you, I’d ask your local Victron dealer for a Type A BMS cable and see if that solves your problem.

10

looking better, now,
using second Port on Cerbo, we got a reading on RX and TX and after a few minutes reading of all 14 Pytes v5a were displayed on VRM.
I was just lossing my mind, thinking we did everthing right.
Issue can be closed