V7668A-1310BO 350-9310007668-131020 单板计算机

V7668A-1310BO 350-9310007668-131020 单板计算机

产品描述：

VMEbus的产品。16位数字分辨率，程控增益，可选择转换率，并自动扫描64差动或单端模拟输入，VMIVME-3122提供卓越的动态范围和模拟输入通道密度。支持多种操作模式，包括自动扫描，数据突发和外部同步。这块板被设计成接口直接与VMIC的信号调理板线数字化热电偶，rtd和应变片的输出。

可以下载单个通道增益以在扫描操作期间使用，或者该板可以配置为所有通道通用的固定增益。多个单板可以同步在一起，zui多可以同步16个单板同时启动每个扫描。一个间隔定时器，总线中断器，通道计数器和Midscan/Endscan标志简化了对双通道内数据的监控端口数据缓冲区。可以从VMIVME-3122中受益的系统应用程序功能包括工厂自动化，过程控制，数据采集系统，训练模拟器和实验室仪器。

当系统或程序复位发生时，板在64通道中初始化自动扫描模式在100千赫的速率和所有通道增益初始化为统一(x1)。复位操作后，程序可以选择定时突发或触发突发模式，并且可以根据需要修改块大小、缓冲区大小和通道增益。通道块可调为1、8、16、32或64通道，以及数据缓冲区大小可以以二进制增量从16到1,024个数据字进行选择。在标准性能模式下，单板复位后必须重新编程50千赫的扫描速率必须将值$00F7写入相对地址0006美元。定时数据爆发由一个间隔计时器控制，它可以提供重复的或单次爆发间隔可达687秒。一次爆发可由6个

8到1024通道样本。的中间或末尾可用一个数据就绪标志扫描，中断请求可以与标志同时生成。的中断也可以在获得特定数量的样本后启动

V7668A-1310BO 350-9310007668-131020 单板计算机
Product Description:

VMEbus products. With 16-bit digital resolution, programmable gain, selectable conversion rates, and automatic scanning of 64 differential or single-ended analog inputs, the VMIVME-3122 offers superior dynamic range and analog input channel density. Supports multiple modes of operation, including automatic scanning, data burst, and external synchronization. This board is designed to interface directly with VMIC's signal conditioning board wire for digitized thermocouple, rtd and strain gauge output.

A single channel gain can be downloaded for use during a scan operation, or the board can be configured as a fixed gain common to all channels. Multiple boards can be synchronized together. A maximum of 16 boards can be synchronized to start each scan at the same time. An interval timer, bus interrupter, channel counter, and Midscan/Endscan flag simplify the monitoring of port data buffers for data within dual channels. System application features that can benefit from VMIVME-3122 include factory automation, process control, data acquisition systems, training simulators and laboratory instruments.

When a system or program reset occurs, the board initializes the automatic scan mode in 64 channels at a rate of 100 KHZ and all channel gains are initialized to uniform (x1). After the reset operation, the program can choose a timed burst or trigger burst mode, and can modify the block size, buffer size, and channel gain as needed. Channel blocks can be adjusted to 1, 8, 16, 32, or 64 channels, and data buffer sizes can be selected in binary increments from 16 to 1,024 data words. In standard performance mode, the board must be reprogrammed after resetting the scan rate of 50 KHZ must write the value $00F7 to the relative address of $0006. Timed data bursts are controlled by an interval timer, which can provide repeated or single burst intervals of up to 687 seconds. An outbreak can consist of up to six

8 to 1024 channel samples. A data ready flag can be scanned in the middle or end of the data ready flag, and interrupt requests can be generated at the same time as the flag. Interrupts can also be initiated after obtaining a specific number of samples

V7668A-1310BO 350-9310007668-131020 单板计算机