03-01-2006 04:50 PM
03-02-2006 04:21 PM
03-03-2006 08:27 AM
Travis Gorkin
I still don't see how to make the connections work? I am trying to get this done with the DAC-assistant and no matter what I do I can't get the signals from the gate or scr input of the SCC-CTR01 to connect to the counter direction controls. I looked at Document, ID: 3PJGJ2RM and I see some sort of code with nothing to do with the SCC-CTR01? Can this not be done with the DC-assistant? If there was a way do tristate the output attached to the counter direction line on the build-out connector in the SC-2345 so I could wire the output of the SCC-CTR01 across to the counter direction input bit P0.6. Is there a way to do this?
Ken
03-06-2006 09:49 AM
Hi Ken-
The code snippet in that KB shows how to use a DAQmx Property Node to override the default direction terminal in case you need an isolated input terminal for your count direction and are using an M Series device (which features configurable counter terminals)
I'm assuming you are using an E Series device judging by your P0.6 query. To answer your question, Yes- you can use pin 16 on the built-in breakout area of the SC-2345 carrier to externally control the count direction of your counter. There is no need to tristate the line as long as you specify "Externally Controlled" for count direction in your DAQ Assistant settings. If you still require an isolated input terminal for the count direction you could use an SCC-DI01 module to interface directly with P0.6. All of this information is available in the KB you mentioned. Please let me know if you need additional clarification.
Thanks-