Справочник Пользователя для National Instruments AT E Series
© National Instruments Corporation
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Introduction
This chapter describes the AT E Series devices, lists what you need to
get started, describes the optional software and optional equipment, and
explains how to unpack the AT E Series device.
get started, describes the optional software and optional equipment, and
explains how to unpack the AT E Series device.
About the AT E Series
Thank you for buying an NI AT E Series device. The AT E Series devices
are the first completely Plug and Play-compatible multifunction analog,
digital, and timing I/O devices for the PC AT and compatible computers.
This family of devices 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 DIO, and two 24-bit counter/timers for TIO.
Because the AT E Series devices have no DIP switches, jumpers, or
potentiometers, they are easily configured and calibrated using software.
are the first completely Plug and Play-compatible multifunction analog,
digital, and timing I/O devices for the PC AT and compatible computers.
This family of devices 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 DIO, and two 24-bit counter/timers for TIO.
Because the AT E Series devices have no DIP switches, jumpers, or
potentiometers, they are easily configured and calibrated using software.
The AT E Series devices are the first completely switchless and jumperless
data acquisition (DAQ) devices. This feature is made possible by the
National Instruments DAQ-PnP bus interface chip that connects the device
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
device configuration without having to remove the device from the
computer. The DAQ-STC makes possible such applications as buffered
pulse generation, equivalent time sampling, and seamlessly changing the
sampling rate.
data acquisition (DAQ) devices. This feature is made possible by the
National Instruments DAQ-PnP bus interface chip that connects the device
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
device configuration without having to remove the device from the
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 devices use the National Instruments DAQ-STC system
timing controller for time-related functions. The DAQ-STC consists of
three timing groups that control AI, AO, 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.
timing controller for time-related functions. The DAQ-STC consists of
three timing groups that control AI, AO, 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 devices is that you cannot easily
synchronize several measurement functions to a common trigger or timing
event. The AT E Series devices have the Real-Time System Integration
(RTSI) bus to solve this problem. The RTSI bus consists of the RTSI bus
synchronize several measurement functions to a common trigger or timing
event. The AT E Series devices have the Real-Time System Integration
(RTSI) bus to solve this problem. The RTSI bus consists of the RTSI bus