I have an absolute encoder that is putting out a synchronous serial pulse train of about 25-27 bits long. I have the signals coming out of an RS485 chip. I want to be able to read that pulse stream with the computer.
My first question is about the interface needed. I was going to purchase the PCI-8431/2 RS485 board and put that information into this card. Is this the right card to use? The stream that is coming out of the encoder has the capabilities of being clocked at well over the 1MHz range.
My next question is, if this is the right card, how would I wire the cable with the encoder pulse stream? All I can provide from my circuit is the data line and common ground.
My final question is this: I am using Visual Basic 6.0 and Measurement Studio. What would the code look like for attaining this information and displying it on the GUI?
Thanks for all your help and see you at NI WEEK next week.
