The following devices support Sample Clock timing for time-based measurements of digital signals, such as frequency, period, and two-edge separation measurements.
Bus-powered M Series USB devices
Parallel digital I/O modules connected to
cDAQ-9132, 9133, 9134, 9135, 9136, 9137, 9171, 9174, 9178, 9179, 9181, 9184, 9185, 9188, 9188XT, 9189, and 9191 chassis. Refer to Digital I/O Considerations for C Series Devices.
PXIe-6612 and 6614 devices.
PXIe-6738 and 6739 devices.
X Series Devices
You cannot use Sample Clock timing for semi-period measurements on X Series devices.