Read & write in the same VI

[e.c.]

Hello,
I´m making a program using Labview that read and write in the same CAN bus. I have used ncWriteNet and ncReadNet. I can send and receive messages but the problem is that the messages I send from my program are not read by my program but are read in Max, so I´m sure I´m sending them.
How can read the messages i´m sending? Thanks
e.c.

[DiegoF]

Hi E.C,

There isn't a way to read-back from a CAN port. The CAN port cannot read a frame that is being currently transmitted. This behavior is determined by the hardware (the CAN controller).

I assume that you are using another port to read the frames, using Bus monitor, right?.

DiegoF
National Instruments.

[dodek]

Hi Diego,

some weeks ago i had the same problem. I phoned with NI-Support in Germany and they told me with the new generation of CAN boards and new software version there is a possibility to receive the echo.
NI will deliver the boards this year in fall.

Now who is right ?????

greetings
Juergen