Index
©
National Instruments Corporation
I-3
SCB-68 Shielded Connector Block User Manual
selecting components, 5-20
accuracy considerations, 5-20
special considerations
analog input, 5-22 to 5-23
analog output, 5-23
digital inputs, 5-24
theory of operation, 5-19
channel pad configurations, 5-2 to 5-4
analog input channels, 5-2 to 5-3
analog output channels, 5-3 to 5-4
PFI0/TRIG1, 5-4
lowpass filtering, 5-7 to 5-16
adding components, 5-11 to 5-12
applications, 5-13 to 5-14
one-pole lowpass RC filter,
5-10 to 5-11
selecting components, 5-11
special considerations
analog input channels, 5-14
analog output channels,
5-14 to 5-15
digital trigger input signals,
5-15 to 5-16
theory of operation, 5-7 to 5-10
measuring 4-20 mA current, 5-16 to 5-18
adding components
differential inputs, 5-18
single-ended inputs, 5-18
selecting resistor, 5-17
theory of operation, 5-16 to 5-17
open thermocouple detection, 5-5 to 5-7
differential, 5-6
single-ended, 5-6
sources of error, 5-6 to 5-7
configuration
quick reference label, B-1 to B-8
quick reference label (table), 1-2 to 1-4
switch configuration, 2-3 to 2-5
using Measurement & Automation
Explorer (MAX), 1-11
connecting signals, 3-1 to 3-14
analog input signals, 3-1 to 3-10
differential connections DIFF input
mode
description, 3-5
ground-referenced signal
sources, 3-4, 3-6
nonreferenced or floating signal
sources, 3-3, 3-7 to 3-8
ground-referenced signal sources
description, 3-4
differential inputs, 3-4, 3-6
single-ended inputs, 3-4 to 3-5,
3-9 to 3-10
input modes
recommended input modes
(figure), 3-2
types of, 3-1
nonreferenced or floating signal
sources
description, 3-3
differential inputs, 3-3,
3-7 to 3-8
single-ended inputs, 3-3, 3-9
single-ended connections
description, 3-8
floating signal sources (RSE
configuration), 3-3, 3-9
grounded signal sources (NRSE
configuration), 3-4 to 3-5,
3-9 to 3-10
analog output signals, 3-10 to 3-11
digital signals, 3-11 to 3-12
installation procedure, 2-3
noise considerations, 3-13 to 3-14
timing signals, 3-12 to 3-13
conventions used in manual,
xi
current (4-20 mA), measuring, 5-16 to 5-18
adding components
differential inputs, 5-18
single-ended inputs, 5-18
