Re: J1939/11 SHIELD GROUND

Sir,

CAN is really difficult to understand when I'm just in the basic level. All
I can find is the basic structure and typical diagrams so I'm not able to
know from where to start.

Could you please take out some time to explain a student who is totally new
to the CAN bus from the beginning? I just know what is CAN and what it is
used for and its structure. I'm unable to grab anything else. Could you
just brief out what do i do to start and everything else i need to know in
simple words.? Please sir, it is really important to me, since last 10days
I've been trying and now its really high time I know everything about CAN
especially using arduino because my head told me to use arduino.

We have designed a prototype of a driverless car. Now we'll be working on
Mahindra E2O car and We need to implement all the sensors and everything
using CAN protocol. So I need to know everything about CAN from the start
till the end.

Kindly help me Sir. I would really appreciate your help and you'll be
helping our team as a whole. Awaiting your response

Thank you.

Regards,
Aayushi Sahu
aayushisahu95@gmail,com
+919916861884

On Tue, Jun 9, 2015 at 10:18 PM, John Dammeyer <[email protected]>
wrote:

> I ran into a similar problem.  I needed both Engine RPM and Transmission
> Selection from a J1939 bus.  The costs of the standard also appeared
> prohibitively high.  However I was starting with a large wall chart on
> J1939
> from Vector and a book by Wilfried Voss titled “A Comprehensible Guide to
> J1939”
> Also there are a number of free J1939 monitoring programs out there that do
> list a lot of the message IDs and data content.  With all that and a bit of
> reverse engineering we did find the RPM and transmission selector.
> However, ultimately we bit the bullet and bought the relevant standards.
> Given that perhaps people's lives are at risk if equipment malfunctions the
> standards costs are pretty low.
> John  Dammeyer
>
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Bram
> Kerkhof
> Sent: June-09-15 7:31 AM
> To: [email protected]
> Subject: RE: [CANLIST] J1939/11 SHIELD GROUND
>
> Investing a couple of Benjamins to ensure your products are playing nice
> with other doodahs that are controlling multiple metric tons of
> bone-crushing and flesh-grinding machinery is *always* a good idea.
> IIRC, SAE has a web subscription package for all J1939-related standards
> that is not completely over-the-top expensive (but not cheap either).
>
> As far as I’m aware, all downloads from the SAE (and ISO as well) are
> watermarked with the details of the buyer. You might be able to access the
> documents in a university/polytechnical school library (if you have access
> to one of those).
>
> cheers,
> Bram
>
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Cain
> Shultz
> Sent: dinsdag 9 juni 2015 15:33
> To: [email protected]; [email protected]
> Subject: FW: [CANLIST] J1939/11 SHIELD GROUND
>
> Good Day Bram,
>
> Thank you for that information.  You seemed to sum it up pretty easily.
> Unfortunately I do not have a copy of J1939/11 to reference.  My resources
> are limited and I do not have the funding to purchase such document from
> SAE.. my company does not really see the point in ‘investing’ in such
> documents at the moment.  I chose J1939/11 as our business is in the
> off-highway fluid power sector.  So a majority of our customers use J1939.
> I am looking to follow best practices from the very beginning, rather than
> making things work.. then realizing it didn’t follow requirements and it be
> a mess down the line or doesn’t communicate with other CAN networks on a
> machine.
> We (and that, I mean, ‘I’) are hoping to expand from a hydraulic supplier
> into a systems integrator using electronics/hydraulics.  Is there any other
> source for J1939/11?..
> [email protected]
>
> Thank you for your time,
> -Cain
>
>
>
>
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