具有先进的运动控制、方便的软件工具和运动VI库(与LabVIEW一起使用)倪PXI-7344(零件号:777935-01)是一个4轴，PXI步进机/伺服运动控制模块。这个控制器是为PXI、PCI和1394总线计算机设计的。借助这种模式，用户可以在实时、抢先、多任务操作系统环境中同时运行多达10个运动程序。该型号具有增强的PID/piff伺服更新功能，每轴更新速率为62 μs。这倪PXI-7344具有用于主开关输入的运动输入/输出、断点输出、行程终点限制、触发输入和高达20 MHz的编码器反馈速率。它配有32个数字I/O位，模拟输入分辨率为12位。这倪PXI-7344有8个多路复用模拟输入通道，4个用户信号；和4个模拟输出通道。它有4个8位数字I/O端口。

这倪PXI-7344旨在支持“国家仪器”专有实时系统集成(RTSI)总线。这种总线在National Instruments的不同产品之间提供高速高效的连接。RTSI总线是数据采集(DAQ)和图像采集(IMAQ)产品的理想解决方案。通过这种总线，用户可以同步他们的倪PXI-7344轻松跨越多个IMAQ、DAQ或运动设备，到达一个共同的定时或触发事件。为运动I/O连接提供了一个高密度68针母VHDCI连接器。

该型号支持LabVIEW，这是一种基于图形编程语言的应用软件。该型号支持其他应用开发软件，如LabWindows/CVI、BridgeVIEW和FlexMotion软件。该程序为用户提供了创建32位独立可执行程序和编译程序所需的源代码。因此，用户可以考虑倪PXI-7344作为满足客户自动化需求的可行解决方案。此外，美国国家仪器公司还提供FlexMotion VI库——一系列虚拟仪器，可与倪PXI-7344。该器件的工作温度为0至55°c。

PXI-7344

Featured with advanced motion control, handy software tools, and motion VI libraries (to be used with LabVIEW), the NI PXI-7344 (Part Number: 777935-01) is a 4-Axis, PXI Stepper/Servo Motion Control Module. This controller is designed for PXI, PCI, and 1394 bus computers. With this model, the user can run as many as 10 motion programs at the same time in a real-time, preemptive, multitasking OS environment. This model comes featured with enhanced, PID/PIVff servo updates at a rate of 62 μs per axis. The NI PXI-7344 has motion Input/Output for home switch inputs, a breakpoint output, end-of-travel limit, trigger input, and up to 20 MHz encoder feedback rates. It is equipped with 32 digital I/O bits, and an analog input resolution of 12 bits. The NI PXI-7344 has 8 multiplexed analog input channels, with 4 user signals; and 4 analog output channels. It has 4 8-bit digital I/O ports.

The NI PXI-7344 is designed to support the National Instruments’ proprietary Real-Time System Integration (RTSI) bus. This bus offers high-speed and efficient connectivity between different products from National Instruments. The RTSI bus is an ideal solution for data acquisition (DAQ) and image acquisition (IMAQ) products. With this bus, the user can synchronize their NI PXI-7344 easily across multiple IMAQ, DAQ, or motion devices to a common timing or trigger event. There is a high density 68-pin female VHDCI connector provided for Motion I/O connections.

This model supports LabVIEW, which is an application software based on a graphical programming language. The model supports other application development software such as–LabWindows/CVI, BridgeVIEW, and the FlexMotion software. This program provides the user with sources required in the creation of 32-bit standalone executable and compiled programs. Thus, the user can consider the NI PXI-7344 as a viable solution for their custom automation requirements. In addition, National Instruments also offers the FlexMotion VI Library – a series of VIs (Virtual Instruments) for using LabView with the NI PXI-7344. The device has an operating temperature of 0 to 55 °C.