HONEYWELL FTA-T-02英文說明,FTA-T-02卡件
64通道掃描，12位模擬到數(shù)字轉(zhuǎn)換器（ADC）是世界上密度最高、每通道板成本最低的電路板之一工業(yè)此外，它包含許多僅在更昂貴的產(chǎn)品。自動掃描模式，自動進入通電，在所有輸入和存儲上執(zhí)行模數(shù)轉(zhuǎn)換它們位于專用通道雙端口寄存器中。這允許用戶操作沒有任何編程的電路板。用戶只需從雙端口讀取數(shù)據(jù)寄存器，始終包含該特定通道的最新轉(zhuǎn)換數(shù)據(jù)。
HONEYWELL FTA-T-02英文說明還有四種其他ADC操作模式，允許在控制ADC操作。
VMIVME-3112板對于許多需要將大量差分輸入轉(zhuǎn)換為數(shù)字形式。過電壓保護輸入、輸入濾波器、可編程定時器和可編程跳線增益特性使電路板適用于工廠自動化和儀表、過程控制、實驗室儀表和一般數(shù)據(jù)采集系統(tǒng)。
以下主要功能的簡要概述說明了靈活性VMIVME-3112板的性能：a、 64個差分或單端輸入b、 在自動掃描模式下通電-無軟件初始化必修的c、 持續(xù)數(shù)字化輸入通道并將結(jié)果存儲在專用通道雙端口寄存器（自動掃描模式）d、 五種操作模式1、自動掃描模式*2、隨機輪詢模式
3、隨機中斷模式4、掃描輪詢模式5、掃描中斷模式e、 跳線可選掃描2到64個通道f、 VMEbus中斷可編程為在完成時中斷單個a/D轉(zhuǎn)換，或在完成16到64通道掃描g、 用戶可編程間隔計時器支持掃描所有通道每隔一段時間h、 跳線可編程增益1、10、100、200和500i、 0至+10 V、±5 V、±10 V的可選A/D范圍j、 低電平和高電平輸入：±10 mV至±10 Vk、 可選低通濾波器l、 過電壓保護輸入m、 5 x 106? 輸入阻抗n、 33 kHz轉(zhuǎn)換率o、 可選輸出代碼：二進制、偏移二進制、帶標志擴展p、 前面板故障指示燈受程序控制，可用于任何目的q、 電路板ID寄存器
The VMIVME-3112 64-Channel Scanning, 12-Bit Analog-to-Digital
Converter (ADC) is one of the highest density/lowest cost per channel boards in the
industry. In addition, it contains many features found only on more expensive
products. The AUTO SCANNING MODE, which is automatically entered on
power-up, performs Analog-to-Digital (A/D) conversions on all inputs and stores
them in a dedicated channel dual port register. This allows the user to operate the
board without any programming. The user simply reads the data from the dual port
registers, which always contain the latest converted data for that particular channel.
There are four other ADC operating modes which allow greater flexibility in
controlling the ADC operation.
The VMIVME-3112 Board is useful for many applications which require a
large number of differential inputs to be converted to digital form. Overvoltage
protected inputs, input filters, programmable timers, and jumper-programmable
gain features lend the board to such applications as factory automation and
instrumentation, process control, laboratory instrumentation, and general data
acquisition systems.
The following brief overview of principal features illustrates the flexibility
and performance that is available with the VMIVME-3112 Board:
a. 64 differential or single-ended inputs
b. Powers-up in AUTO SCANNING MODE - no software initialization
required
c. Continually digitizes input channels and stores the results in a
dedicated channel dual port register (AUTO SCANNING MODE)
d. Five operating modes
1. AUTO SCANNING MODE *
2. RANDOM POLL MODE
3. RANDOM INTERRUPT MODE
4. SCANNING POLL MODE
5. SCANNING INTERRUPT MODE
e. Jumper-selectable scanning of 2 to 64 channels
f. VMEbus interrupts may be programmed to interrupt upon completion
of a single A/D conversion, or upon completion of a 16- through
64-channel scan
g. User-programmable interval timer supports scanning of all channels
at periodic intervals
h. Jumper-programmable gains of 1, 10, 100, 200, and 500
i. Selectable A/D ranges of 0 to +10 V, ±5 V, ±10 V
j. Low-level and high-level inputs: ±10 mV to ±10 V
k. Optional low pass filter
l. Overvoltage protected inputs
m. 5 x 106 ? input impedance
n. 33 kHz conversion rate
o. Selectable output code: binary, offset binary, two's complement with
sign extension
p. Front panel Fail LED is under program control and may be used for
any purpose
q. Board ID register
