I am currently using a 9174 cDAQ device. I am trying to connect the cDAQ to an external source that communicates through a RS-485 serial cable. I have spoken with a few representatives from Lawbview and they have told me that there is no direct way to talk to the chassis with the serial cable. I must purchase a serial to USB-485 cable and communicate in parallel within LabView. If I don't directly go through the cDAQ chassis, then why do I even need it? And, I'm lost as in how I will communicate with an external source within Labview.
My second question.
I have a 9074 cRIO. And, through much research, I have noticed that it seems to much easier to use this device for this situation. My only problem is that I am new to LabVIEW and I feel that working with the cRIO may be a little difficult for me at this point. My question is, would it be easier to perform the acquisition with the above set-up, or use the cRIO and spend a little extra time.
The application that i am trying to perform is this:
I have a RS-485 from the external source. Then I want to stream 2048 byte serial data stream that is continuous into NI and have it look at the serial data and assign a Virtual LED on a graphic and/or a display message to tell me what's coming across the serial stream.
