Hello, I have been researching CAN to implement CANopen in a ships power control system. This is a fairly new field for us and this will be our first system ...
kjmc12
kjm38@...
Feb 3, 2007 7:12 am
5986
... Being not a physical layer expert, I would say that the cable can be used. The transceivers dont care abou the small difference in the cable impedance. Of...
Heinz-Jürgen Oertel
oe@...
Feb 3, 2007 2:11 pm
5987
Hi, I'd suggest you join the NMEA2000 organization as publish a marine CAN protocol and they address all sorts of shipboard issues. John Dammeyer Automation...
John Dammeyer
johnd@...
Feb 3, 2007 6:16 pm
5988
Hello, The CAN line drivers are designed to operated with 120ohm cable and the 120ohm termination resistors at each end, so the PROFIBUS cable will be perfect....
Corrigan, Steve
s-corrigan1@...
Feb 3, 2007 6:27 pm
5989
Thanks for the prompt responses. Steve, Just in case I wasn't clear, the PROFIBUS cable has 150 ohm impedance vs CAN 120 ohm. Do you consider it acceptable...
kjmc12
kjm38@...
Feb 4, 2007 1:09 am
5990
... At 150 ohms, the impedance is off by 25 %, and the reflection coefficient is 0.111, which is not bad: the resulting SWR (Standing Wave Ratio) is 1.25:1,...
davide@...
Feb 4, 2007 7:45 am
5991
Hi, PROFIBUS is basically RS-485, in which CAN finds it's electrical origins. Profibus does specify a higher minimum driver output of 2.0V vs. 1.5V for 485,...
Corrigan, Steve
s-corrigan1@...
Feb 4, 2007 5:09 pm
5992
... CAN transceivers have low impedance outputs (in dominant state), not matched! So they don't care about the higher impedance. They are happy to deliver less...
Oliver Betz
list_ob@...
Feb 5, 2007 5:50 pm
5993
CiA is the second time organizing the "CAN Information day", presenting latest activities of CiA and new CAN technologies and trends. Please read more at CiA...
Heinz-Juergen Oertel
oe@...
Feb 6, 2007 2:33 pm
5994
Hello J1708 does not use RS232. It uses a modified RS485 which is a twisted differential pair of wires. RS232 uses a single transmit wire and a single receive...
Robert Boys
RBoys@...
Feb 7, 2007 10:04 pm
5995
Hi, I'm a bit dissapointed on limited feature set of Peak Canbus Monitor software. It doesn't allow any other display order, setting masks, message filtering,...
Robert Rozman
rozman@...
Feb 7, 2007 11:37 pm
5996
hello Sir, i have a doubt in SDO client, how SDO client works? and during development how to test that(suppose in a network one SDO server and one client is...
amritendu das
amritendubkdas@...
Feb 8, 2007 6:24 am
5997
... amritendu, the SDO working principle is clearly described in the CiA standard 301. One method to test your SDO client is using a working SDO server, buy...
Heinz-Jürgen Oertel
oe@...
Feb 8, 2007 7:14 am
5998
Hi Robert, I'm certain that has been a post on the list about a good monitor a year or so a go. Don't remember it's name or a URL. Search th archives. ...
YAP
x112358@...
Feb 8, 2007 8:36 am
5999
Hello CAN experts, I like to point your interest to another event organized by CiA. The topic seems to be very interesting. Networks are increasing in size and...
Heinz-Juergen Oertel
oe@...
Feb 19, 2007 12:38 pm
6000
Hi, Does CAN2.0B always mean 29bit ID? From what I understand, 2.0B supports both Basic and extended ID. But most of the sites related 2.0B to 29bit ID. So...
Prasad, Rotti (IE10)
Prasad.Rotti@...
Feb 19, 2007 1:50 pm
6001
Hello Prasad, 2.0B generally means that both IDs are supported. 11-bit or 29-bit IDs may be used in the application. Cheers, Steve C. ...
Corrigan, Steve
s-corrigan1@...
Feb 19, 2007 3:35 pm
6002
Hi, I'm working with the on-chip CAN in the TMS470R1512 Texas Microcontroler, and using the PCA82C251 Transceiver, which works according the 11898-2 standard,...
Marcelo
msrmailxxx@...
Feb 19, 2007 8:50 pm
6003
Hello Marcelo, 1st, make sure that you have not accidentially grounded pin 1 of the 82C251 transceiver. Cheers, Steve C. ... From:...
Corrigan, Steve
s-corrigan1@...
Feb 19, 2007 11:54 pm
6004
Hi, I have not grounded the pin 1 of the transceiver, but I have connected 2 resistor of 120ohm in paralell directly to outputs of the transceiver CAN_H and...
Marcelo
msrmailxxx@...
Feb 20, 2007 11:57 am
6005
Marcelo, I believe that you have found the problem. Be careful with optos. They have caused many problems in the past. Most opto outputs stay in the last bit...
Corrigan, Steve
s-corrigan1@...
Feb 20, 2007 2:57 pm
6006
Hi, The problem is partially solved, the optocouplers was really inverted, now I can transmit messagens through the Bus. But the other nodes don't send the ACK...
Marcelo
msrmailxxx@...
Feb 20, 2007 6:50 pm
6007
Marcelo, Is this your email -- msrmailxxx@...? I'll send you some code that should help. It's for a slightly different TMS470, but it's the same CAN...
Corrigan, Steve
s-corrigan1@...
Feb 20, 2007 8:34 pm
6008
... Marcelo, even if you don't think so, it seem to be the bit rate. It's difficult to measure if you are within the small tolerances allowed. Can you measure...
Heinz-Jürgen Oertel
oe@...
Feb 20, 2007 9:29 pm
6009
HI, Thanks for the tips, at the site (www.can-wiki.info/ProblemSolvingQuestions) I have found a suspect point, the ground between the microcontroller and the...
Marcelo
msrmailxxx@...
Feb 20, 2007 11:09 pm
6010
Hi, I'm working on a project where i need the speedsignal of The Mercedes ML! Is there a place where i can finde the can adres and information how the message...
Maarten Theunen
maarten.theunen@...
Feb 21, 2007 8:01 am
6011
Hi, I'm working on a project where i need the speedsignal of The Mercedes ML! Is there a place where i can finde the can adres and information how the message...
Maarten Theunen
maarten.theunen@...
Feb 21, 2007 2:17 pm
6012
Hello I do not agree with some of the things at this website. I copy those contents completely far below: http://www.can-wiki.info/ProblemSolvingQuestions 1) ...
Robert Boys
RBoys@...
Feb 23, 2007 11:52 pm
6013
Message text written by INTERNET:canlist_NOT@... ... Hello I wrote this and one sentence should read: This is NOT likely the source of your...
Robert Boys
RBoys@...
Feb 24, 2007 3:31 am
6014
Dear Robert, I agree with most of your points, but there is a difference between things that work and things that work under any circumstances. If you just...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
