[Ovmsdev] Twizy SEVCON object dictionary

Michael Balzer dexter at expeedo.de
Mon Dec 1 21:47:11 HKT 2014

Hi Julien,

there's no publically available DCF or master 
dictionary covering the Twizy specific Gen4 
firmware, but I found out most of the registers 
are the same as for the latest common Gen4 firmware.

Use the master dictionary excel sheet (!) 
contained in the DVT software package. Google 
"sevcon dvt download" to find the download for that.

I downloaded the DCF from my Gen4 using the 
CANopen standard function, merged that with the 
master dictionary for the SDO documentation and 
added the few specific differences (overspeed 
warning thresholds for example). Sadly I cannot 
share the full result, as the master dictionary is 
copyrighted by SEVCON.

As an alternative I created the file 
"Twizy-SDO-List.ods" only containing the SDOs used 
by me and only containing my comments, so you can 
just merge this info into the master dictionary or 
use both side by side.

If you've got questions regarding specific SDOs 
don't hesitate to contact me. Up to now I seem to 
have been the only one experimenting on this 
level, would be nice to add another view.


Am 01.12.2014 um 13:40 schrieb Julien NOZAIS:
> Hi,
> I have been working on my thesis with my Twizy 
> and OVMS for a few month. Among the various 
> documents I have used, a Master Object 
> Dictionary from SEVCON helped me a lot to 
> understand all the parameters.
> However the document I have found (on some 
> forum) is not specific to SEVCON Gen 4, as it 
> includes other versions of the objects and some 
> that are not implemented in Gen 4.
> I assume the work done on the twizy by you guys 
> needed such dictionary. I am wondering if you 
> happen to have a more recent or updated version 
> for the Gen 4, or a *.cdf file ?
> If so, would you be so kind as to send me a copy 
> ? I went through the mailing list's archive but 
> no one seems to talk about it. I would also be 
> interested to know how you managed to found that 
> document. Is it easy to get it from SEVCON or 
> from some other source ?
> Best regards,
> Julien
> _______________________________________________
> OvmsDev mailing list
> OvmsDev at lists.teslaclub.hk
> http://lists.teslaclub.hk/mailman/listinfo/ovmsdev

Michael Balzer * Paradestr. 8 * D-42107 Wuppertal
Fon 0202 / 272 2201 * Handy 0176 / 206 989 26

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