Thanks Andrew.

>> However I don't think you will find what you are looking for.
I am starting to believe that !

I do understand your question : What do you want to do with CANopen ?!

In simple words this :

A) Send commands and read spool position information of the proportional valve.( only when command changes)
B) Read position and velocity of cylinder rod ( once every 10ms )

When the client said that the PC must handle the CANopen comm, I simply thought it must be another one like a Modbus RTU stuff. But I think I am mistaken. This CAN stuff seems a tad bit complex than that.

So what did I do ? Write to the CiA guys asking for the DS408 document thinking it will help me understand more. Alas when it landed, I found it was a 396 page (!!) document and I almost fell off my chair.

In a nut shell my problem is this : With BOSCH proportional valve I can use thier software which has a user interface for command values and display of spool position feedback values. Rest of the things like nodeID, SDO PDO EDS ABCD etc are unknown to the user.
I now have to create a similiar interface in LabVIEW. Simple is it not ?

Trying.

Raghu