how to measure frequencies of two sources simultaneously using 6602?

[ZYuan]

I am using pci-6602 & LabView to measure frequencies of two sources. I wired Measure Frequency (NI-TIO).vi to do it, but it seems the counter only works at one channel at a time. Can anybody send me an example vi?

Many thanks in advance

ZYuan

[rgharrison]

Hi ZYuan,

To measure the frequencies simultaneously, you would need to duplicate the code for the single counter example twice and link the error cluster from one set to the next. I don't have a specific example but the following example can be used as a guide.

Simultaneous Buffered-Event Counting on All Eight Counters of the 6602 or 6608 Devices
http://sine.ni.com/apps/we/niepd_web_display.display_epd4?p_guid=B45EACE3DC9F56A4E034080020E74861&p_node=DZ52325&p_source=External

Hope that helps. Have a good day.

Ron