01-29-2020 02:46 PM
Hello,
I need to measure frequency of 5 separate devices with the PXI-6289. On the pinout guide it says " As an input, each PFI terminal can be used to supply an external source for AI, AO, DI, and DO timing signals or counter/timer inputs.", but in the manual it says it only has two counters. Am I still able to use 5 of the PFI terminals as counters to measure each frequency even though there are only 2 counters?
01-29-2020 04:35 PM
Briefly, no. Not at the same time anyway.
There are many terminals whose signals can be *routed* to the device's counters, but there are only 2 counter modules on the board for doing frequency measurement.
Does your chassis support PXIe? If so, you might want to consider a dedicated 6612 counter/timer board. It has 8 counters based on a new design that offers some enhancements over the ones on the 62xx M-series devices.
-Kevin P
02-27-2020 04:24 AM
Your 5 frequencies are of what frequency range?
needed update rate?
simultanious measurement needed?
needed freq. resolution?