BNC-2121 Connector Accessory for 660X Devices
12
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Buffered Pulse-Width Measurement
To perform buffered pulse-width measurement, complete the following
steps.
1.
In the C interface or in LabVIEW, select an internal timebase as
SOURCE of the selected counter.
2.
Connect a wire from the
spring terminal to GATE of the selected
counter.
Each time GATE goes high, the value of the counter is latched to a buffer.
Note
For buffered pulse-width measurement, the counter value obtained between the
rising and falling edges of GATE is latched at the completion of each pulse-width interval
of GATE.
Buffered Two-Signal Edge-Separation Measurement
To perform a buffered two-signal edge-separation measurement, complete
the following steps.
1.
In the C interface or in LabVIEW, select an internal timebase as
SOURCE of the selected counter.
2.
Connect a wire from the
spring terminal to UP/DOWN of the
selected counter.
3.
Connect a wire from the
Trigger
spring terminal to GATE of the
selected counter. The counter counts the rising edges on SOURCE
between the active edge of UP/DOWN and the active edge of GATE.
The counter value latches at each active edge of GATE.
4.
Press the
Digital Trigger
button to drive GATE into a high state. Press
the
Digital Trigger
button several times to obtain multiple GATE
edges.
Buffered Periodic Event Counting
To perform buffered periodic event counting, complete the following steps.
1.
Connect a wire from the
spring terminal to SOURCE of the
selected counter.
2.
Connect a wire from the
Trigger
spring terminal to GATE of the
selected counter. The counter increments on each active SOURCE
edge and latches at each active GATE edge.
