I just updated my Rec A BMS to 2.94, and immediately afterwards my Victron system lost communication with the Rec. I have a Cerbo GX, Multiplus 12/3000, Smart MPPT's, Samrt Shunt etc, all has been working fine for over a year.
I tried disconnecting and reconnecting the Cerbo, restarting the Cerbo, restarting the Rec.
I had to manually restart the Multiplus and MPPT's to get charging again.
Please point me in the right direction!
Thanks
Head office just advised us of an issue with 2.9.4 and we just posted a rerelease of the update here on the REC North America site
https://rec-bms-na.com/product-manuals/#7-8-wpfd-rec-active-bms
hope that helps
@Rick It did not. On the Cerbo under BMS - Can port it's just reading REC: N/A
@Trevor check in manual communication CANS?
Is it set at 2?
If not send command: CANS 2
Check with CANS? Again.
My system runs nice.
Your reset the mppt and others chargers to get them charged again.
Yes this is normal behaviour if communication with the BMS is lost.
@Ben Hi Ben, yes the Send address for communication is set to 2 still.
The system has been running great for over a year, it was just the update that changed something, can't figure out what it is.
@Rick I just reverted back to 2.93-1 and the REC immediately showed up on the Cerbo.
I used a 2.94 from another sourse as from
https://rec-bms-na.com/product-manuals/#7-8-wpfd-rec-active-bms
Now I downloaded the version from the link above.
Installed it, it worked perfect.
Restart an extra time, all worked, still connection with Cerbo.
Strange why it didnt work on yours.
Double check or GX, Services/VE.CAN port/CAn bus profile is set at (Ve.can & VE-bus BMS(250kbits/s)
After changing CANS 2, speed 250, you did a restart?
Extra note:
Nothing todo with NO communication, but after upgrade to 2.94, the new function MODE is at 1.
See info from txt file at download link.
MODE 1 is for Main relay, charge and discharge switch off
MODE 2 is for main relay, only discharge switch off. FOR charge switch off, program relay 1 under TASK.
One more note:
See new function, which I personally like and Iam happy it is finally there.
UBDI (End of charge allowed cell voltage difference)
I set this to 0.025 instead of the factory setting from 0.008
Good clarification on this Ben.
I think Trevor misunderstood your CANS (CAN speed) reference and thought you meant device address.
Trevor, your CANS parameter should be set to either 2 or 3 depending on your GX device
|
250k |
2 |
|
500k |
3(default) |
BTW, version 2.9.4 updated manual is now available for download here too:
https://rec-bms-na.com/product-manuals/#7-8-wpfd-rec-active-bms
@Ben Thank you, I tried again this morning and when I successfully install 2.94 the REC disconnects from the Cerbo, I don't know why.
I switch back to 2.93 and it works perfectly.
Did you try changing the CANS parameter to 2 or 3?
@Trevor really strange. I have 2 setups running with 2.94. Non off them have any problem.
suggestion to test, with 2.94.
under settings/manual communication.
Type address: 2
Type command: CANS?
press submit.
is the answer value: 2? If 2 thats ok.
if not:
Type address: 2
Type command; CANS 2
press submit.
is the answer value: 2? should be!!!, Let us know what you see after pressing submit.
see also my previouw question:
Double check or GX, Services/VE.CAN port/CAn bus profile is set at (Ve.can & VE-bus BMS(250kbits/s).
OR maybe try this, download:
