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Re: which higher layer protocol is used in Mercedes Axor trucks(on top of CAN with 11 bit identifiers)
by Funny N.
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Greeting, Selçuk,
You better check with ISO standards such as ISO11898 etc. There are some European truck/diesel engines using ISO standards instead of SAE J1939 standards. And most of the case, they use the 11 bit CAN ID.
Also some of the US auto maker seems like to use the 11 bit CAN ID for the OBD II part of communication.
Funny N.
Au Group Electronics, New Bedford, MA, http://www.AuElectronics.com
You better check with ISO standards such as ISO11898 etc. There are some European truck/diesel engines using ISO standards instead of SAE J1939 standards. And most of the case, they use the 11 bit CAN ID.
Also some of the US auto maker seems like to use the 11 bit CAN ID for the OBD II part of communication.
Au Group Electronics, New Bedford, MA, http://www.AuElectronics.com
----- Original Message ----
From: Selçuk Cihan <selcukcihan@...>
To: canlist@...
Sent: Wednesday, July 2, 2008 10:03:51 AM
Subject: Re: [CANLIST] which higher layer protocol is used in Mercedes Axor trucks(on top of CAN with 11 bit identifiers)
> Is it a J1939 device? Many CAN Kingdom or DeviceNet devices use the 11 bit
> CAN frames.
Thanks for the response,
My device can receive both can 2.0a and can 2.0b frames. The problem
is that, axor gives me only 2.0a frames (standard frames, with 11 bit
ids), and i can not figure out the meaning of data associated with
that id. SAE j1939 mentions a little about the standard frames, it
says that standard and extended frames can coexist, etc; but the
semantics of the data part is not explained. I have verified that
Mercedes Axor/Actros trucks use standard frames on the can bus, but i
need to know the protocol that sits on top of the lower layer(in my
case can 2.0a)
For instance, following two lines are real data frames i have received from Axor
id(11bits) data(8 bytes)
0x6A0 33 FF FA FF FF 51 34 08
0x22D 00 3C A8 61 A8 61 00 00
--
Archives and useful links: http://groups.yahoo.com/group/CANbus
Subscribe and unsubscribe at www.vector-informatik.com/canlist/
Report any problems to <canlist-owner@...>
From: Selçuk Cihan <selcukcihan@...>
To: canlist@...
Sent: Wednesday, July 2, 2008 10:03:51 AM
Subject: Re: [CANLIST] which higher layer protocol is used in Mercedes Axor trucks(on top of CAN with 11 bit identifiers)
> Is it a J1939 device? Many CAN Kingdom or DeviceNet devices use the 11 bit
> CAN frames.
Thanks for the response,
My device can receive both can 2.0a and can 2.0b frames. The problem
is that, axor gives me only 2.0a frames (standard frames, with 11 bit
ids), and i can not figure out the meaning of data associated with
that id. SAE j1939 mentions a little about the standard frames, it
says that standard and extended frames can coexist, etc; but the
semantics of the data part is not explained. I have verified that
Mercedes Axor/Actros trucks use standard frames on the can bus, but i
need to know the protocol that sits on top of the lower layer(in my
case can 2.0a)
For instance, following two lines are real data frames i have received from Axor
id(11bits) data(8 bytes)
0x6A0 33 FF FA FF FF 51 34 08
0x22D 00 3C A8 61 A8 61 00 00
--
Archives and useful links: http://groups.yahoo.com/group/CANbus
Subscribe and unsubscribe at www.vector-informatik.com/canlist/
Report any problems to <canlist-owner@...>
« Return to Thread: which higher layer protocol is used in Mercedes Axor trucks(on top of CAN with 11 bit identifiers)
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