National Instruments SCXI-1121 User Manual

Page 161

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Index

© National Instruments Corporation

Index-11

SCXI-1121 User Manual

SCXIbus to SCXI-1121 rear signal

connector to DAQ board pin
equivalences (table), 2-41

Slot-Select Register

description, 4-6
register writes, 5-2 to 5-4

software, optional, 1-2 to 1-3
software-related resources, G-2
specifications

analog input, A-1 to A-2
cold-junction sensor, A-3 to A-4
environment, A-4
physical, A-4
RTD mode, A-3
safety, A-4
strain gauge mode, A-3

SPICLK signal

description (table), 3-4, C-3
SCXIbus equivalents for rear signal

connector (table), 3-5

SCXIbus to SCXI-1121 rear signal

connector to DAQ board pin
equivalences (table), 2-41

SS* signal (table), 3-5, C-4
strain gauge mode specifications, A-3

T

technical support resources, G-1 to G-2
temperature sensor

signal connections, 2-22
terminal blocks, 2-30 to 2-31

terminal adapter. See SCXI-1343 rear screw

terminal adapter.

terminal blocks. See SCXI-1302 50-pin

terminal block; SCXI-1320 and SCXI-1328
terminal blocks; SCXI-1321 terminal block.

theory of operation, 3-1 to 3-20

analog and timing circuitry, 3-8 to 3-16

analog input channels, 3-8 to 3-11
analog output circuitry, 3-15 to 3-16

calibration equipment requirements,

3-11 to 3-14

excitation output channels, 3-11

block diagram of SCXI-1121, 3-1
digital control circuitry, 3-7 to 3-8
digital interface, 3-6
major components of SCXI-1121, 3-2
scanning modes, 3-17 to 3-20

multiple-chassis scanning, 3-20
multiple-module multiplexed

scanning, 3-19

multiplexed scanning, 3-17 to 3-18
single-module multiplexed scanning,

3-18 to 3-19

single-module parallel

scanning, 3-17

SCXIbus connector

equivalents for rear signal connector

(table), 3-5

pin assignments (figure), 3-3
signal descriptions (table), 3-4 to 3-5

thermistors, using with SCXI-1321 terminal

block, 2-27 to 2-28

timing circuitry. See analog and timing

circuitry.

timing signal. See SCANCLK signal.
TRIG0 signal (table), 3-5, C-4
triggering, programming, 5-14 to 5-15

U

user-configurable jumpers, 2-2 to 2-3

V

V+ signal (table), 3-4, C-3
V- signal (table), 3-4, C-3
voltage and current excitation jumpers,

2-9 to 2-10

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