how to wire daq 6009

[Thijsse]

i am trying to count pulses with my daq 6009 but i dont know on which port i must connect the wires

pulses come from a flowmeter which feeds with 5 volts

can anyone tell me which ports i need to use?

[pallen]

Hi there,

Have a look at the specs here:  http://www.ni.com/pdf/manuals/371303e.pdf

Specifically,  look for the Event Counter.  The spec says: You can configure PFI 0 as a source for a gated invertor counter input edge
count task. In this mode, falling-edge events are counted using a 32-bit counter. For more information about event timing requirements, refer to the Specifications section.

Good luck!

[Thijsse]

i did indeed connect it to the port you name, but is wasnt really working:(

i just need to translate my pulses tot a flow in labVIEW but it seems that no one can tell me how to do that

[pallen]

Why not start with posting what you have so far? 

It will make it easier for others monitoring the boards to help you out.

[Thijsse]

well, i have a flowmeter wich has 3 wires, a plus and a minus which get 5 volts en a variable, which gives a pulse at each 16 millilitres

than i have the daq 6009 which following the specs has a counter en a have labVIEW 8.0

now i am a student at the higer technical school and my task is to translate the pulses to a flow which you can see as a gauge in labVIEW

today i connected the minus from the flowmeter to the ground on the daq en the plus to the pfi 0 port, that doesn't give any result on my daq program, so not even in labview yet

if i connect it to an analog port ai1 i see the blockwave in my dfaq program but i still cant read it into labview:(

i also have a pressure meter which gives a voltage between 1 and 5 volts to meassure a hight in a tank, this was no problem connecting and it words fine

[BasvanDijke]

Hi Thijsse,

Please notice the link below.

http://zone.ni.com/devzone/cda/tut/p/id/5404

Regards,

Bas

[BasvanDijke]

And in the usermanual you can find information about using PFI0 as event counter, see attachment.

Bas

[eti'n]

I try to use the count of my NI 6009 with Matlab.

Explainations about PFI0 are really small...

How create the channel ? And how access the data ?

@+

Eti'n

[ninlmartijn]

Hello Eti'n

Thank you for your post. I don't have any experience with Matlab, so I can't help you with that, but there is a tutorial and some tools which can help you to work with the driver (DAQmx), please review the following document and find the download tools below this page.

Best regards,