baud rate

[can can canopen]

Hi All,

I am working on CANOpen protocol, In one of the application I have to change the baud rate twice.

The whole application is like this , I have a Motor control drive, the initial baud rate of the drive is 250, CANOpen is used for communication .

I can change the baud rate once and can check communication in drive by accessing some of the parameters, after this I again changed the baud rate to some other value and when i try to check the communication , I am getting CAN Interface create error.

This is the problem i am facing.

[John E]

Hi,
If you could provide us with the exact error number and error message you are receiving.  It should help us help you troubleshoot the issue.


Thanks,

[can can canopen]

For the first time when i change ....and when i read back by givin changed baud rate ...the communication was proper.

For the second time i am doing samething, but I am not stopping the program.....it is sequential, I am getting CANOpen interface create error.

If you want more details then I can attach the code.

Thanks

[Arjun_Khullar]

Hi,

Are you changing the baud rate on a fly or stopping the program, changing the baud rate and then running it back again?

Thanks,

Arjun K

[can can canopen]

No I am not stopping the program.

I had checked in that direction too, change baudrate save that,switch off and switch on drive,check communication .That program works .

But not this type of program.

[DirkW]

could you post your code, thus i could look into it, to see whats going on?

DirkW

[MightyMoooo]

Hi,

I have a CANopen-IO-Module which I want to test, I want to change the baudrate and check communication.
I use a NI-PCI-CAN-Card and LabVIEW with the CANopen-Library for communication.

After I changed the baudrate of the IO-Module, LabVIEW stops and shows the following error:
-
Error -1074388985 occurred at CANopen Interface Create.vi

Possible reason(s):

NI-CAN:  (Hex 0xBFF62007) You attempted to set a configuration attribute while the object is running.  Solutions: Configure attributes prior to opening the object; Stop and restart communication as needed so that you can update configuration attributes.
-

wants wrong??