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Schematic View of the Switch Soft Front Panel Showing Incorrect Connections The Schematic view of my Switch Soft Front Panel (SFP) does not update appropriately after I make changes to relay states in my application. URL: http://digital.ni.com/public.nsf/allkb/D7D6BDFF5C790829862574010079282C

USB-621x Can Generate Unexpected Values with NI-DAQmx 8.7 When using NI-DAQmx 8.7 driver software, NI USB-621x devices (USB bus-powered M Series multifunction DAQ) may generate unexpected values on the analog output channels. National Instruments released NI-DAQmx 8.7.1 to fix this problem. This behavior does not occur in previous versions of URL: http://digital.ni.com/public.nsf/allkb/58C3C3F69606C1B8862573EF00802143

Why Is The Calibration of My 784x or 785x R Series Device Not Being Saved? When using the NI 78xxR Calibration Utility to calibrate my 784x or 785x R Series device, the calibration does not seem to work. Why is this? URL: http://digital.ni.com/public.nsf/allkb/FDE5C451818A93D6862573E1007770AF

Calibration Executive NI 5600 Read Data File Missing I am using Calibration Executive to calibrate a NI 5600. During the calibration process a error message is received:Calibration Procedure ErrorOpen File in CalExec_5600_Read Data.VILabVIEW: File not found. The file might URL: http://digital.ni.com/public.nsf/allkb/2F29C0AEA6BF33C8862573D3006E5197

Switches Do Not Install Correctly When NI-DAQmx is Installed to C:\Program Files\NI I installed NI-DAQmx and cannot properly install my NI Switch devices. The device appear in Windows Device Manager and are listed as operating correctly but the devices do not show up in Measurement and Automation Explorer and cannot be accessed from any Application Development Environment or other URL: http://digital.ni.com/public.nsf/allkb/EB852CA659F93A60862573C4006AE3B1

Why is Automatic Serial Polling Unexpectedly Enabled in NI-VISA? I usually operate with automatic serial polling disabled. However, after I run a program that uses NI-VISA, I notice that automatic serial polling is now enabled. My program never made any calls to enable automatic serial polling. Why is this happening? URL: http://digital.ni.com/public.nsf/allkb/627380484246D46E862573B4008332D2

Why Do I Get an Error in CVI When Calling viMoveIn or viMoveOut VISA Functions? Why do I get a user protection error in LabWindows/CVI when calling the viMoveIn or viMoveOut NI-VISA functions? URL: http://digital.ni.com/public.nsf/allkb/2BB5D6FF93F1A80E862573710071EF9D

1588 Synchronization Drifts Away with Time when using a 10 Mbps Router with the PXI-6682 I'm doing 1588 synchronization with the PXI-6682 but I've noticed that synchronization gets worse with time (the slave continues to drift away from the master). Looking at the "offset from master" property for the slave, the value will look normal (under 100ns) most of the time, but you'll URL: http://digital.ni.com/public.nsf/allkb/06F98C12AA16ACA68625737000629003

Special Considerations for PFI0 on the PXI-6682 PFI0 seems to behave inconsistently. Sometimes I get an immediate timestamp even if my input hasn't changed. The same problem happens if I connect PFI0 to a destination, the initial state seems to be floating. Do I have a problem with PFI0? URL: http://digital.ni.com/public.nsf/allkb/25CDB06E89A649B3862573700062BE1A

NI 9237真实的激励电压与指定电压值不同 在用NI 9237创建Strain或者Custom Voltage with Excitation的DAQmx任务时，在任务中指定的激励电压与我在Ex+和Ex-两端之间测到的电压不一致。例如，在创建任务时，我指定的激励电压为6V。然而，我在Ex+和Ex URL: http://digital.ni.com/public.nsf/allkb/3F7E5F74EE6458AB4825736F00208909