How to get counter from a BNC-2110

[jcannon]

Hi everyone,

I have a vi that is sampling data at 4kHz... At this rate I would like to use the counter on my BNC-2110 for DAQ device fro timing rather than the onboard clock... However, don't know how to get and use the counter data... I assume I need a wire connecting some of the pins on the device (e.g. PF01, CRT0, etc, what are all these pin ins/outs for?) and the counter would be used in some type of trigger set-up in the vi code? I am beeing trying to understand this for a while, but can't find anything that provids a nice simple description...

Any help would be greatly appreciated.

Regards,

Jack

[Dennis_Knutson]

Your question makes no sense. The BNC-2110 is a dumb terminal block and the only counter is from an actual DAQ device. Why would you not want to use the clock on the DAQ board?

[jcannon]

Hi Dennis,

Thanks for the reply... Programming DAQ timing is something I am still figuring out... I think I may be confusing "sample clock" and "onboard clock"... I think sample clock is the PC processor clock? So, onboard clock is the clock on my PCie 6320 card?...

I am using the DAQ assistant to configure my AI channel parameters... In the "Advanced Timing" tab in the "Sample Clock Type" drop down menu I can select Internal or External.. When I select External I can choose a heap of options from the "Clock Source" drop down menu (e.g. PFI0:15, ai/Sample Clock, 20MHz Timebase, etc) ... Is this where I should be looking? Which do I select?

Regards,

Jack 

[Dennis_Knutson · Accepted solution]

The sample clock is the clock that the A/D uses. The source is usually the internal clock on the DAQ device. You do not have access to the pc clock. Just leave the clock source at internal and forget the options for now.

[jcannon]

Thanks Dennis... Helps a lot...

Regards,

Jack