This document, which describes the standards and practices for LabVIEW Plug and Play drivers, is intended for driver developers and describes the standards for structuring VIs, instrument I/O, style, and error reporting. It also describes instrument driver components and how to integrate these components. In addition, this document describes a process for developing useful instrument drivers. Other resources for instrument driver developers include the instrument driver templates and the Instrument Driver Guidelines, both of which are available from the National Instruments Instrument Driver Network (). To use this document, you should have a basic understanding of instrument control and be familiar with the operation of LabVIEW.

After installing LabVIEW and any applicable modules or toolkits, you should install the NI-VISA driver to facilitate communication with your instrument.

You also should be familiar with the with Virtual Instrument Software Architecture (VISA) application programming interface (API). Table of Contents • • • • • • •. What Is a LabVIEW Plug and Play Instrument Driver? A LabVIEW Plug and Play instrument driver is a set of VIs that control a programmable instrument. Download Game The Amazing Spiderman 2 Apk Offline.

Shantaram Audio Book Torrent Download. Each VI corresponds to an instrument operation, such as configuring, triggering, and reading measurements from the instrument. Instrument drivers help users get started using their instrument from their computer and saves them development time and cost because users do not need to learn the programming protocol for each instrument. With open-source, well documented instrument drivers, end users can customize their operation for better performance. A modular design makes the driver easier to customize. Using a standard architecture for all LabVIEW instrument drivers has the following benefits: • Improves the consistency of instrument drivers for the benefit of end users.

• Improves the quality of the drivers. • Minimizes duplicated effort. • Improves ease of use for end users by providing a consistent methodology for using instrument drivers from a variety of sources. • Streamline the instrument driver development process for the benefit of instrument driver developers. The contains instrument drivers for a variety of programmable instruments, including GPIB, USB, TCP/IP, VXI, RS-232, and PXI instruments. Instrument drivers contain high level VIs with intuitive front panels, so end users can quickly test and verify the remote capabilities of their instrument. They do not need to know low-level instrument control and instrument-specific commands and syntax.

Users create instrument control applications by building VIs using instrument driver VIs as subVIs on their block diagrams. LabVIEW Plug and Play Instrument Driver Model Many programmable instruments have a large number of functions and modes. With this complexity, it is necessary to provide a consistent design model that aids both instrument driver developers as well as end users who develop instrument control applications.

The LabVIEW Plug and Play instrument driver model contains both external structure and internal structure guidelines. The external structure shows how the instrument driver interfaces with the user and to other software components in the system. The internal structure shows the internal organization of the instrument driver software module. Instrument Driver External Structure An instrument driver consists of the API VIs the user calls from a higher level application. The figure below illustrates how the instrument driver interacts with the rest of the system. LabVIEW Instrument Driver External Structure The external structure illustrates how the instrument driver presents both an interactive interface and a programming interface.

The application programming interface (API) is the set of user-callable instrument driver VIs used in end-user systems. For example, a manufacturer test system might make instrument driver calls to communicate with a multimeter or an oscilloscope. The end user learns about the API through the instrument driver front panels. By interactively running the front panels of the instrument driver VIs, end users understand how each control affects the instrument. After they understand the settings, end users can incorporate the instrument driver VIs in their application.