PXI 6239 counter

[GITA_A]

Hi,

     I have PXI-6239 card , i have many query on this card .Does this card requires any external voltage for counter input and timer output .I am not able to read timer output i have done a code for this everthing is correct eventhough i am not reading any frequency but in the multimeter it shows overloaded but i have given input as just 10 HZ. And also i have dount on digital output i have conneccted the external circuit as shown in the user manual but here also same problem that i am not reading any voltage.Could any one clarify about this

[Robert_F]

Hello AutoTec,

You do not need to connect an external source to your counter.  There are a few counter examples that are shipped with LabVIEW and will measure a digital frequency.  (Hardware Input and Output >> DAQmx >> Counter Measurements >> Digital Frequency >> Meas Dig Frequency-Low Freq 1Ctr.vi)  Connect your signal (10Hz signal) to the gate (Pin 32 or PFI 1) on the counter. 

Pin 32 can be used for a PFI line, P0.1 digital input line or a counter gate line.  If you use this pin for your counter application, you can not use as a PFI or digital line.