National Instruments USB-621 Series, User Manual

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Index
© National Instruments Corporation I-9 NI USB-621x User Manual
R
reciprocal freq u ency meas u rement, 8-13
referenced single-ended config u ration, 4-31
referenced single-ended connections
u sing with floating signal so u rces, 4-31
when to u se with floating signal so u rces,
4-25
when to u se with gro u nd-referenced
signal so u rces, 4-33
related doc u mentation, xiv
retriggerable single p u lse generation, 8-22
ro u ting, digital, 10-1
RSE connections
when to u se with gro u nd-referenced
signal so u rces, 4-33
r u bber feet, 1-6
S
sample clock, 8-34
edge co u nting, 8-3
meas u rement, 8-18
scan speed, 4-8
scanning speed, 4-8
self-calibration, 1-2
semi-period meas
u rement, 8-8
b u ffered, 8-9
single, 8-8
sensors, 2-3
settings, analog inp
u t gro u nd-reference, 4-3
short high-q u ality cabling, 4-6
signal
conditioning, 2-3
descriptions, 3-1
labels for USB-621
x Screw Terminal, 1-3
so u rces
floating, 4-25
gro
u nd-referenced, 4-31
Signal Stream, USB, 11-1
signals
AI Convert Clock, 4-16
AI Convert Clock Timebase, 4-19
AI Hold Complete Event, 4-19
AI Pa
u se Trigger, 4-22
AI Reference Trigger, 4-21
AI Sample Clock, 4-14
AI Sample Clock Timebase, 4-15
AI Start Trigger, 4-20
analog inp
u t, 4-11
analog o u tp u t, 5-5
AO Pa u se Trigger, 5-6
AO Sample Clock, 5-8
AO Sample Clock Timebase, 5-9
AO Start Trigger, 5-5
connecting analog inp
u t
on USB-6210/6211/6212
devices, 4-23
on USB-6215/6216/6218
devices, 4-36
connecting analog o u tp u t, 5-4
connecting digital I/O
on USB-6210/6211/6215/6218, 6-3
on USB-6212/6216, 6-6
connecting PFI inp u t, 7-4
Co u nter n A, 8-30
Co u nter n A u x, 8-29
Co u nter n B, 8-30
Co u nter n Gate, 8-29
Co u nter n HW Arm, 8-30
Co u nter n Internal O u tp u t, 8-31
Co u nter n So u rce, 8-28
Co u nter n TC, 8-31
Co u nter n Up_Down, 8-30
Co u nter n Z, 8-30
co u nters, 8-27
exporting timing o u tp u t u sing PFI
terminals, 7-3
FREQ OUT, 8-31
Freq
u ency O u tp u t, 8-31