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Can I Use an Analog Input for a Count Edges or Encoder Task Using DAQmx? I need to create a count edges or an encoder task but I do not have any available counters. Can I use an analog input (or resolver signal) to create a task for counting edges or for reading an encoder? URL: http://digital.ni.com/public.nsf/allkb/B472ABA1362F44328625729C0041A8B1

LabWindows/CVI で作成したDLL をTestStand からコールする方法 LabWindows/CVI で作成したDLL をTestStand からコールさせたいのですが、簡単なサンプルや手順書などはありませんでしょうか。 URL: http://digital.ni.com/public.nsf/allkb/2AFD55BB62C6266E86257273002B6BE0

How do I Specify my PFI Line as an External Clock Using Traditional NI-DAQ (Legacy) in LabWindows/CVI? I am using LabWindows/CVI to specify an external clock on a PFI line using Traditonal NI-DAQ. In LabVIEW I can use the AI Clock Config to specify a PFI line as an external clock but how do I achieve this in LabWindows/CVI? URL: http://digital.ni.com/public.nsf/allkb/6A93C0BC4122DE10862572680007E5D1

如何使用NI的产品测量电流？ 我想进行电流测量，但是我不知道哪种NI产品可以测量电流并且如何测量？ URL: http://digital.ni.com/public.nsf/allkb/D84290C812ED19164825726700401FB7

请问我该如何通过MAX( Measurement & Automation Explorer )测试多功能DAQ卡的PFI信号是否功能正常？ 我想要测试我的PFI信号线，但是E系列信号采集卡的自我测试功能似乎不会检查他们的动作是否正常？ URL: http://digital.ni.com/public.nsf/allkb/2C37EC04A6F847434825725800307FE9

How do I Phase Lock Loop (PLL) Multiple NI-DAQmx Tasks on the Same Device? I have multiple NI-DAQmx tasks that I want to phase lock loop (PLL) to an external clock. But when I define a reference clock for one of my tasks I get Error -89137: Specified route cannot be satisfied. URL: http://digital.ni.com/public.nsf/allkb/2F675A9F2162EA24862572570059A308

使用SCXI-1520和PXI-4220来测量全桥传感器 我有一个全桥传感器（例如压力传感器、负载单元、扭矩传感器等）。我想对传感器进行激励并且通过SCXI-1520监控响应。我如何使用传统DAQ或者DAQmx 7.x 对SCXI-1520（或PXI-4220）进行配置来创建虚拟通道、任务、或者全局通道来测量我的传感器？ URL: http://digital.ni.com/public.nsf/allkb/95120F5F3CD30FFB48257249001629CF

DAQ 助手提示没有发现可支持的设备 当我使用 DAQ 助手产生基本 DAQmx 代码时，显示 “No Supported Devices Found”而且不让我继续。我如何修复这个问题？ URL: http://digital.ni.com/public.nsf/allkb/4550399C68EA15954825723C000BE098

Why Doesn't Count Direction Work Properly on the Bus-Powered USB M Series Devices? I am trying to program an event counting task in NI-DAQmx for my USB-621x device. I would like to use an external signal to control the count direction, but it doesn't work right when using the default counter terminals. URL: http://digital.ni.com/public.nsf/allkb/1A8818274130FA388625722E00760CC9

Why do USB M-Series Devices Acquire No Data Values on the First Read? I am performing continuous data acquisition using a USB M-Series device and have the DAQmxRead function parameter for the number of samples per channel set to -1. Why does the first call to the DAQmxRead function return zero data points? URL: http://digital.ni.com/public.nsf/allkb/BFBC9983653C184186257227007A1527