National Instruments SCXI-1121 Manuel D’Utilisation

timing diagram, 2-46

Slot 0 Register

description, 4-5
programming hardscan circuitry, 

5-13 to 5-14

Slot-Select Register, 4-6

register writes, 5-2 to 5-4

RESET* signal (table), 3-4, C-3
Revision A and B

parts locator diagram

detailed, F-3
general, F-2

photograph, F-1

RTDs

specifications for RTD mode, A-3
using with SCXI-1321 terminal block, 

2-27 to 2-28

RTEMP bit, 4-4

safety specifications, A-4
SCAL bit, 4-3
SCAL signal (table), 2-18, D-3
SCANCLK signal

description (table), 2-38, B-2
timing requirements, 2-42

SCANCLKEN bit, 4-4
SCANCON signal (table), 3-5, C-4
SCANCONEN bit, 4-4, 4-8
SCANDIV bit, scanning measurements, 

5-9 to 5-10

scanning measurements, programming, 

5-7 to 5-15

acquisition enable, triggering, and 

servicing, 5-14 to 5-15

Counter 1 and SCANDIV, 5-9 to 5-10
data acquisition board setup, 5-7 to 5-9
examples, 5-15 to 5-17
module programming, 5-10 to 5-13
multiple-chassis scanning, 5-12 to 5-13

multiple-module multiplexed 

scanning, 5-12

single-module multiplexed scanning, 

5-11 to 5-12

single-module parallel scanning, 5-10
Slot 0 hardscan circuitry, 5-13 to 5-14

scanning modes, 3-17 to 3-20

analog output circuitry, 3-15
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

SCXI-1121. See also configuration; 

installation; theory of operation.

block diagram, 3-1
custom cables, 1-5
kit contents, 1-2
major components, 3-2
optional equipment (table), 1-4
optional software, 1-2 to 1-3
overview, 1-1
parts locator diagrams

detailed (figure), 2-2
general (figure), 2-1

Revision A and B

parts locator diagram, F-2 to F-3
photograph, F-1

unpacking, 1-6

SCXI-1121 cabling

SCXI-1180 feedthrough panel, 

E-8 to E-10

SCXI-1302 50-pin terminal block, 

E-10 to E-11

SCXI-1340 cable assembly, E-1 to E-4
SCXI-1341 Lab-NB, Lab-PC, or 

Lab-PC+ cable assembly, E-4 to E-6

SCXI-1342 PC-LPM-16 cable assembly, 

E-6 to E-8