RE: CANOpen CiA 418,419 Battery/Charger questions

Heikki,

Section 9.1 of which document?  My CiA418 Battery Module document only goes up to Section 7.  Same with the Charger CiA419.  I'd better study Dynamic SDO requests in order see if that's where the confusion in the specification lies.

Since the system I'm working on may have 3 chargers I'm perfectly content with a remote control mode of the chargers where they are stupid and send absolutely nothing until they have been configured.  I'm happy to configure these before installation since their node ID is done in firmware and not with switches.  So the PDOs can also be predefined.

I just object to multiple nodes sending out SDO read requests when they are not the system master.  

John

> -----Original Message-----
> From: [email protected] [mailto:canlist-
> [email protected]] On Behalf Of heikki saha
> Sent: December-09-13 1:58 AM
> To: [email protected]
> Subject: Re: [CANLIST] CANOpen CiA 418,419 Battery/Charger questions
> 
> Hello,
> 
> Section 9.1 clearly defines that CANopen multiple device concept may be used
> for multiple battery instances. I can't imagine any other approach.
> 
> Best regards,
> 
> -H
> 
> 
> TK Engineering Oy
> Heikki Saha, CTO
>   M.Sc. Automation
>   Dr.Tech. Electronics
> Mail address:  P.O. box 810, FIN-65101 VAASA Visit address: Yritt j nkatu 15,
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> http://www.tke.fi/
> http://www.canopen.fi/
> 
> ----- Original Message -----
> From: "bertil b ck" <[email protected]>
> To: [email protected]
> Cc: "John Dammeyer" <[email protected]>, "heikki saha"
> <[email protected]>
> Sent: Tuesday, December 3, 2013 9:46:56 PM
> Subject: Re: [CANLIST] CANOpen CiA 418,419 Battery/Charger questions
> 
> Hi John,
> I had a quick read in CiA 418 and CiA 419.
> 
> My conclusion is also that the specification only is intedned for one Battery and
> one Charger.
> 
> Heikki, any comments?
> 
> Br,
> Bertil
> 
> ----- Original Message -----
> From: "John Dammeyer" <[email protected]>
> To: [email protected]
> Sent: Monday, December 2, 2013 11:58:35 PM
> Subject: [CANLIST] CANOpen CiA 418,419 Battery/Charger questions
> 
> 
> 
> 
> Hi,
> 
> 
> 
> I have a question about CANOpen based chargers and Batteries based on the
> CiA 418,419 specification.
> 
> 
> 
> The 419 document states the Charger shall scan the network for a Battery
> Module (418) and read object 1000 from Battery to determine which PDOs are
> functional. It will then read the Battery OD PDO locations to determine what
> PDO COB-IDs to use.
> 
> 
> 
> The standard doesn t appear to support multiple chargers for one battery where
> the chargers are capable of working in parallel to provide more current than is
> possible with a single charger.
> 
> 
> 
> Have I got that right or have I misread the spec?
> 
> 
> 
> Thanks
> 
> John Dammeyer
> 
> 
> 
> 
> 
> "ELS! The Solution"
> 
> Automation Artisans Inc.
> 
> http://www.autoartisans.com/ELS/
> 
> Ph. 1 250 544 4950
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> 
> 
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