Can Can

[Mrjmegson]

Hey guys,

I hope this is a simple question.

My batteries have two options for external connection to an inverter, CAN or RS485. The batteries don't come with either cable.

So my question is, which one is better?

Cheers.

 

[johnb2713]

CAN seems to be the one of choice.

 

[binky]

Hey guys,

I hope this is a simple question.

My batteries have two options for external connection to an inverter, CAN or RS485. The batteries don't come with either cable.

So my question is, which one is better?

Cheers.

Never seen any use RS485 when a lead is provided.

 

[Mrjmegson]

Cool, CAN it is.

I did a bit of reading last night and CAN seems to be able to actually be used to communicate properly, rather than just send simple signals.

As always, thanks guys, very much appreciated.

 

[johnb2713]

Canbus is really good, it's used a lot in automotive, aerospace and industry in general.

 

[Mrjmegson]

Canbus is really good, it's used a lot in automotive, aerospace and industry in general.

Yeh I've read and watched lots more about it today, and it is a really good system.

Begs the question, why run two systems on one battery.

The supplier also came back to me today and confirmed that CAN is the preferred way to go.

Hopefully the battery can impart lots of useful information to the inverter.

 

[johnb2713]

Yeh I've read and watched lots more about it today, and it is a really good system.

Begs the question, why run two systems on one battery.

Flexibility, some inverters may only have RS485 etc, cost to include both interfaces is minimal.

 

[Barx]

Components such as energy meters are usually RS485 MODBUS too. Can't say ever seen a CANBUS version, though I'm sure they will exist by now.

 

[Mrjmegson]

Flexibility, some inverters may only have RS485 etc, cost to include both interfaces is minimal.

Good point, very cheap to integrate both.