danzimmer
2008-06-28 20:10:07 UTC
Hi!
I am configuring a new test system and we are using a PXI-6259 to make counter timer measurements. My questions are pretty basic but I have no experience with the PXI-6259 and couldn't find my answers in the manual.
The PXI-6259 has two 68-pin connectors, Connector0 and Connector1. Let's say that I want to measure the frequency of a signal. The signal is routed to the PXI-6259 through 50 ohm coaxial switching. It doesn't look like there are dedicated pins on the Connector for the counters. Should I connect the signal to one of the Analog Input channels? For example, would I connect the center conductor of the coax to AI 1 (Connector0 pin 33) and the outer conductor/shield to AI Ground (Connector0 pin 32)...then set the module up to measure frequency?
Can I measure the time interval between two signals using the two onboard counters? For example, would I connect one signal to AI 1 and the other signal to AI 2? Let's say that I want to start counting when the signal on counter 1 transitions through 2V on the rising edge and stop counting when the signal on counter 2 transitions through 0.8V on the falling edge?
We aren't using LabView or LabWindows software. The software is another issue, and I'm really just trying to understand the basic hardware functionality right now.
Thanks!Message Edited by danzimmer on 06-28-2008 03:08 PM
I am configuring a new test system and we are using a PXI-6259 to make counter timer measurements. My questions are pretty basic but I have no experience with the PXI-6259 and couldn't find my answers in the manual.
The PXI-6259 has two 68-pin connectors, Connector0 and Connector1. Let's say that I want to measure the frequency of a signal. The signal is routed to the PXI-6259 through 50 ohm coaxial switching. It doesn't look like there are dedicated pins on the Connector for the counters. Should I connect the signal to one of the Analog Input channels? For example, would I connect the center conductor of the coax to AI 1 (Connector0 pin 33) and the outer conductor/shield to AI Ground (Connector0 pin 32)...then set the module up to measure frequency?
Can I measure the time interval between two signals using the two onboard counters? For example, would I connect one signal to AI 1 and the other signal to AI 2? Let's say that I want to start counting when the signal on counter 1 transitions through 2V on the rising edge and stop counting when the signal on counter 2 transitions through 0.8V on the falling edge?
We aren't using LabView or LabWindows software. The software is another issue, and I'm really just trying to understand the basic hardware functionality right now.
Thanks!Message Edited by danzimmer on 06-28-2008 03:08 PM