National Instruments 3.21E+04 Benutzerhandbuch
National Instruments Corporation
1-1
AT-MIO/AI E Series User Manual
Introduction
Chapter
1
This chapter describes the AT E Series boards, lists what you need to
get started, describes the optional software and optional equipment, and
explains how to unpack your AT E Series board.
get started, describes the optional software and optional equipment, and
explains how to unpack your AT E Series board.
About the AT E Series
Thank you for buying a National Instruments AT E Series board. The
AT E Series boards are the first completely Plug and Play-compatible
multifunction analog, digital, and timing I/O boards for the PC AT and
compatible computers. This family of boards features 12-bit and 16-bit
ADCs with 16 and 64 analog inputs, 12-bit and 16-bit DACs with
voltage outputs, eight and 32 lines of TTL-compatible digital I/O, and
two 24-bit counter/timers for timing I/O. Because the AT E Series
boards have no DIP switches, jumpers, or potentiometers, they are
easily configured and calibrated using software.
AT E Series boards are the first completely Plug and Play-compatible
multifunction analog, digital, and timing I/O boards for the PC AT and
compatible computers. This family of boards features 12-bit and 16-bit
ADCs with 16 and 64 analog inputs, 12-bit and 16-bit DACs with
voltage outputs, eight and 32 lines of TTL-compatible digital I/O, and
two 24-bit counter/timers for timing I/O. Because the AT E Series
boards have no DIP switches, jumpers, or potentiometers, they are
easily configured and calibrated using software.
The AT E Series boards are the first completely switchless and
jumperless data acquisition boards. This feature is made possible by the
National Instruments DAQ-PnP bus interface chip that connects the
board to the AT I/O bus. The DAQ-PnP implements the Plug and Play
ISA Specification so that the DMA, interrupts, and base I/O addresses
are all software configurable. This allows you to easily change the
AT E Series board configuration without having to remove the board
from your computer. The DAQ-STC makes possible such applications
as buffered pulse generation, equivalent time sampling, and seamlessly
changing the sampling rate.
jumperless data acquisition boards. This feature is made possible by the
National Instruments DAQ-PnP bus interface chip that connects the
board to the AT I/O bus. The DAQ-PnP implements the Plug and Play
ISA Specification so that the DMA, interrupts, and base I/O addresses
are all software configurable. This allows you to easily change the
AT E Series board configuration without having to remove the board
from your computer. The DAQ-STC makes possible such applications
as buffered pulse generation, equivalent time sampling, and seamlessly
changing the sampling rate.
The AT E Series boards use the National Instruments DAQ-STC
system timing controller for time-related functions. The DAQ-STC
consists of three timing groups that control analog input, analog output,
and general-purpose counter/timer functions. These groups include a
total of seven 24-bit and three 16-bit counters and a maximum timing
resolution of 50 ns.
system timing controller for time-related functions. The DAQ-STC
consists of three timing groups that control analog input, analog output,
and general-purpose counter/timer functions. These groups include a
total of seven 24-bit and three 16-bit counters and a maximum timing
resolution of 50 ns.
A common problem with DAQ boards is that you cannot easily
synchronize several measurement functions to a common trigger or
synchronize several measurement functions to a common trigger or