topic Re: Read CANoe Data in Automotive and Embedded Networks

Read CANoe Data

Dama — Fri, 11 Apr 2008 07:43:14 GMT

Hello,

i have some problems with CANoe. I just want to read the Data (see on the picture) in Labview but I don´t no how.

Can someone help me?

Re: Read CANoe Data

DirkW — Fri, 11 Apr 2008 13:39:01 GMT

Vector offers a LV API for their boards. You should contact them for help.

DirkW

Re: Read CANoe Data

Dama — Mon, 14 Apr 2008 07:38:10 GMT

Thank you for your answer.

But i have contact Vector and they can´t help me! I hope that someone can give me the answer.

Re: Read CANoe Data

ksn1 — Mon, 21 Apr 2008 08:33:45 GMT

Hi,

Try using ActiveX functions in LabVIEW.

Let me know if you have questions.

Re: Read CANoe Data

Dama — Tue, 22 Apr 2008 05:08:33 GMT

(Hi,

Try using ActiveX functions in LabVIEW.

Let me know if you have questions.)

I have build a Vi with ActiveX and it works.

Re: Read CANoe Data

Padderick — Thu, 21 Oct 2010 08:46:41 GMT

Hi,

first of all, sorry that I'm answering such an old thread. But I'm looking for a solution for nearly the same problem. I need to read the databytes out of a message (message send from a device and connected over a cancardxl with canoe) . Dama's VI is a little help but in my case I don't have a name in my message (as you can see in: bitmap - canoe screen). And I think maybe that's the problem why I can not read the data of my message.

Can i maybe search a message not by searching for the name but searching for the message di?

I attached my VI. Maybe you can help me to find a solution. 🙂

greetings, Padderick

Re: Read CANoe Data

ksn1 — Thu, 21 Oct 2010 10:09:02 GMT

hi,

First try to run the CANoe with proper settings. Go to hardware configuration of CANoe menu and see whether the CAN channels are configured properly, especially the Baud rate.The system window shows that baud rate is configured to 500000 baud..Are you sure about this value?

Also check whether your device is sending the message, to see the names there you should have *.dbc file.

Try getting the data in the CANoe tool first. Once the data is traced properly in CANoe tool, then there should not be a problem with LabVIEW.

Do let me know if you have questions in CANoe.

Also send the vi in LV 2009 version , i dont have 2010.

Thanks and Regards,

Senthil

Re: Read CANoe Data

Padderick — Thu, 21 Oct 2010 10:37:17 GMT

Hey,

thank you for your prompt reply 🙂

I checked the baudrate and its set to 500kBaud.

I think canoe is working well. If I send a message with the device I can see exactly this message in canoe. The message has also the correct id, dlc length and datavalues. And if I stop sending this message and refresh the measurement screen in canoe I can not see the message any longer. So I think it is working normal.

I think the device send messages without names. But unfortunately I can not change the hardware. Its an embedded system of the company i work for. 😞

I added the VI again in LV2009

Re: Read CANoe Data

ksn1 — Thu, 21 Oct 2010 11:35:27 GMT

hi,

Always the device will send the messages only with message ID and not the message name, the databses file (*.dbc) in CANoe have the message names for the message ids.

the vi named "Feldstärke Vector.vi" in previous reply by Dama, that VI works for me. I am able to get the data in LV from CANoe.Take the same vi and try running it.

Also in CANoe using dbc editor create a dbc fileor take any existing dbc file and add the ID and message details you want and add the same in to the CANoe configuration and then give the meesage name you want.

let me know if you have anyother questions.

Re: Read CANoe Data

Padderick — Thu, 21 Oct 2010 12:58:43 GMT

ohh I didin't know anything about a dbc editor. So to use Damas VI i need to create a dbc file for my needs? I saw i have a candb++ programm already installed on my pc. Is this the programm to create dbc files?

Can someone may send me a example of a dbc file which i can use for Damas VI? Would be really nice 😉

Re: Read CANoe Data

ksn1 — Thu, 21 Oct 2010 13:38:17 GMT

yes db++ editor used for editing and crating the dbc files.

i have attached a sample dbc quickly created. check all the parameters in the dbc file.

thanks and Regards,

Senthil

Re: Read CANoe Data

Padderick — Thu, 21 Oct 2010 14:33:46 GMT

Thank you 🙂

But now I'm trying to run Dama's VI and I get still some error messages. How can I connect the dbc-file with my VI. I thought it is the activex-application-open-config part in Damas VI (Put the path of the dbc-file in the string).

And what should I put inside of the two other strings at the activex-busvb-getsignal. I thought it's (using your file) signalname=LV_CANOe_Test_Signal_1 and msgname=LV_CANoe_TestMessage

I added a screen of my settings in the VI. 🙂

Sorry, it is probably a stupid question but I'm new in using labview and especially new in using activex. 😞

Padderick

Re: Read CANoe Data

ksn1 — Thu, 21 Oct 2010 18:43:19 GMT

signalname=LV_CANOe_Test_Signal_1 and

msgname=LV_CANoe_TestMessage these two are right.

enter config = CANoe config file path ie. something like"C:\..\..\*.cfg"

use the dbc file to setup the canoe config or add the dbc file in to the existing canoe cfg.

let me know if you have any other questions.

Re: Read CANoe Data

Padderick — Mon, 25 Oct 2010 07:48:49 GMT

Hey ksn1,

thanks for your help. 😄 I'm so happy. IT works 😄

The only thing is with that VI I can only read one databyte of the message. I tried to change the message length(bit) in the dbc file into 64bit (8*8bit), but if I do that the value gets to long and i can not read such big values. Is there an easy solution to read all databytes of one message?

Re: Read CANoe Data

Padderick — Tue, 26 Oct 2010 08:14:25 GMT

OK I found a solution for that problem.

I'm using the property rawvalue of "ISignal2" and not the property value. That gives me an array with variant data and after using the function "variant to data" I get an numeric array with all databytes.

And again, thank you very much for your help, ksn1. 🙂

Re: Read CANoe Data

Padderick — Wed, 27 Oct 2010 08:48:43 GMT

Hey guys,

now I'm trying to load the dlc-length and the cycletime of a canoe-message into labview. Is there a way to get the data out of the message? (maybe calculate cycletime by using the busloadinformation of the channel?)

greetings Padderick