National Instruments SCXI-1120 User Manual page 129

Index
temperature sensor connection, 2-15
rear signal connector
analog output signal
connections, 2-26
communication signals, 2-28 to 2-31
digital I/O signal connections, 2-26
to 2-27
pin assignments, 2-24, B-1
pin equivalences with SCXIbus and
data acquisition boards,
2-27, 5-2
SCXIbus pin equivalences, 3-5
signal descriptions, 2-25, B-2
timing signal, 2-28
SCXI-1320 terminal block, 2-20
SCXI-1328 terminal block, 2-20
SCXIbus connector
pin assignments, 3-3, C-2
pin equivalences with rear signal
connector, 3-5
pin equivalences with rear signal
connector and data acquisition
boards, 2-27, 5-2
signal descriptions, 3-4 to 3-5,
C-3 to C-4
warning against exceeding maximum
ratings, 2-11
single-channel measurements, 5-3 to 5-5
direct measurements, 5-3 to 5-4
indirect measurements, 5-4 to 5-5
measurements from other modules, 5-4
measurements from SCXI-1120 via
another module, 5-4 to 5-5
multiplexed output, 5-4
parallel output, 5-3
single-module multiplexed scanning
direct, 5-9
indirect, 5-9
theory of operation, 3-14 to 3-15
single-module parallel scanning, 3-14, 5-8
SL<3..0> bit, 4-6
Slot 0 hardscan circuitry, programming,
5-10 to 5-11
Slot 0 registers, 4-5 to 4-8
FIFO Register, 4-8
Hardscan Control Register (HSCR), 4-7
Slot-Select Register, 4-6
slot selection
© National Instruments Corporation
register selection and write procedure,
5-2 to 5-3
slot-select timing diagram, 2-29
writing 16-bit-slot select number, 2-29
SLOT0SEL* signal
communicating on SPI bus, 2-28 to 2-31
digital I/O signal connections,
2-26 to 2-27
jumper connection, 2-4, 2-5
programming hardscan circuitry, 5-11
rear signal connector, 2-25, B-2
register selection and write procedure,
5-2 to 5-3
software, optional, 1-2 to 1-3
specifications
analog input, A-1 to A-2
cold-junction sensor, A-2 to A-3
operating environment, A-3
physical, A-3
storage environment, A-3
SPI bus. See communication signals for SPI
bus.
SPICLK signal
description of, 3-4, C-3
digital control circuitry, 3-7
and SPI bus, 3-5
SS* signal
description of, 3-5, C-4
digital control circuitry, 3-7, 3-8
programming Slot 0 hardscan
circuitry, 5-11
storage environment specifications, A-3
T
technical support, G-1
temperature connection, direct
(jumper W41), 2-8 to 2-9
temperature sensor
connection for analog input
channels, 2-15
SCXI-1320 terminal block, 2-18
SCXI-1328 terminal block, 2-18 to 2-19
terminal block. See SCXI-1302 50-pin
terminal block; SCXI-1320 terminal
block; SCXI-1328 terminal block.
theory of operation
Index-8 SCXI-1120 User Manual