Hi,
The "CANopen Interface Create.VI." initializes the CAN Port of your NI CAN board. If this function creates an error message, there is something wrong with the Port you tried to initialize.
perhaps the same port is used by another software? (MAX)
The error message should tell you what is wrong and perhaps you can post at least the error number?
And no, there is no previous configuration, that must be done, except perhaps to test the board in MAX.
DirkW