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What Is PXI?

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1. 3 a a Lil Log ae Ej Figure 5 National Instruments PXI 8187 Pentium 4 M 2 5 GHz Embedded Controller Notice the familiar PC peripherals such as keyboard mouse and monitor connections as well as the hard drive USB 2 0 Ethernet serial and other standard PC peripherals This controller runs standard Windows 2000 XP OSs or can be targeted with LabVIEW Real Time Embedded controllers are ideal for portable systems and contained single box applications where the chassis is moved from one location to the next For more information please refer to PXI controllers PXI Peripheral Modules National Instruments offers more than 100 different PXI modules and because PXI is an open industry standard nearly 1000 modules are available from the 65 members of the PXI Systems Alliance Analog Inputand Output Frotoyping Boards Boundary Scan Instruments Bus Interface amp Communication Motion Control Carrier Products Power supplies Px Receiver Interconnect Devices Switching Timing Inout and Output Digital Inputand Output Digital Signal Processing Functional Test and Diagnostics Image Acquisition A categorized list of modules offered by National Instruments and our PXI product partners is available at ni com pxi Because PXI is directly compatible with CompactPCI you can use any 3U CompactPCI module in a PXI system Additionally CardBus PCMCIA and PMC PCI Mezzanine Card ca
2. 4 04 06 2006 09 59 AM What Is PXI Tutorial Products and Services National Instruments http zone n1 com devzone conceptd nsf webmain 5D 1 A4BAB15C82C 134 WIDYTes s 33 WINZ 324 DIT FLI GUS lt PXI Trigger Bus gt Figure 2 PXI Timing and Triggering Buses PXI combines industry standard PC components such as the PCI bus with advanced triggering and synchronization extensions on the backplane PXI Controllers As defined by the PXI Hardware Specification all PXI chassis contain a system controller slot located in the leftmost slot of the chassis slot 1 Controller options include remote controllers from a desktop workstation server or a laptop computer and high performance embedded controllers with either a Microsoft OS Windows 2000 XP or a real time OS LabVIEW Real Time PXI Remote Controllers There are two types of PXI remote controllers Laptop control of PXI PC control of PXI Laptop Control of PXI With ExpressCard MXI Measurement eXtensions for Instrumentation and PCMCIA CardBus interface kits users can control PXI systems directly from laptop computers During boot up the laptop computer will recognize all peripheral modules in the PXI system as PCI devices ExpressCard MXI interface kit PCMCIA CardBus interface kit Figure 3 Laptop Control of PXI The ExpressCard MXI interface kit provides a 110 MB s PCI Express to PCI bridge from the laptop computer to the PXI chassis The PCMCIA CardB
3. 7645 or via e mail Related Links 04 06 2006 09 59 AM What Is PXI Tutorial Products and Services National Instruments http zone n1 com devzone conceptd nsf webmain 5D 1 A4BAB15C82C PXI Specification Tutorial PXI Brochure Print this Page Your Feedback Poor Excellent YesNo Document Quality c Answered Your Question Add Comments 12 3 4 5 Submit gt Comments Great Job more Anonymous more Elizabeth A Thompson Ph D Indiana Univ Purdue Univ Fort Wayne IPFW Good more hakan almroth se flextronics com more math pablo My Profile Privacy Legal Contact NI 2006 National Instruments Corporation All rights reserved p d E Mail this Page 4 of 4 04 06 2006 09 59 AM
4. What Is PXI Tutorial Products and Services National Instruments http zone n1 com devzone conceptd nsf webmain 5D 1 A4BAB15C82C NATIONAL view cart help search Products amp Services NSTRUMENTS PXI and CompactPCI You are here NI Home gt Products amp Services gt PXI and CompactPCI PXI Chassis 261 ratings 4 16 out of 5 Rate this Document PXI Controllers What Is PXI Measurement Modules Sa Print this Page Industrial Modules PXI Switches This tutorial provides an overview of PXI including the PXI hardware architecture software architecture and an introduction to configuring PXI systems Motion Control and Machine Table of Contents Vision Modules Bus Interface Modules Introduction Hardware Architecture Third Party Products Software Architecture System Configuration Summary Introduction PXI PCI eXtensions for Instrumentation is a rugged PC based platform for measurement and automation systems PXI combines PCI electrical bus features with the rugged modular Eurocard packaging of CompactPCI and then adds specialized synchronization buses and key software features PXI is both a high performance and low cost deployment platform for measurement and automation systems These systems serve applications such as manufacturing test military and aerospace machine monitoring automotive and industrial test Developed in 1997 and launched in 1998 PXI was introduced as an open industry st
5. andard to meet the increasing demands of complex instrumentation systems Today PXI is governed by the PXI Systems Alliance PXISA a group of more than 65 companies chartered to promote the PXI standard ensure interoperability and maintain the PXI specification For more information on the PXISA including the PXI specification refer to the PXISA website at www pxisa org Hardware Architecture PXI systems are comprised of three basic components chassis system controller and peripheral modules Chassis Ni PAETOS Modules Controller amp Figure 1 A standard 8 Slot PXI chassis contains an embedded system controller and seven peripheral modules PXI Chassis The chassis provides the rugged and modular packaging for the system Chassis generally ranging in size from 4 slots to 18 slots are also available with special features such as DC power supplies and integrated signal conditioning The chassis contains the high performance PXI backplane which includes the PCI bus and timing and triggering buses Figure 2 Using these timing and triggering buses users can develop systems for applications requiring precise synchronization Learn more about PXI Chassis For more information on the functionality of the PXI timing and triggering buses refer to the PXI Hardware Specification at www pxisa org specs htm Star Trigger Bus System Controller Star Trigger Controller AS bs Pe eS a BAe 1 of
6. can implement either a daisy chain or a star topology to build multichassis systems For more information on topologies for multichassis configurations refer to the MXI 4 Series User Manual You can purchase any desktop workstation or server computer and then remotely control your PXI system using either MXI Express or copper fiber optic MXI 4 serial link For more information please refer to PC control of PXI With PXI remote controllers you can maximize processor performance with minimized cost by using a desktop computer or laptop to remotely control a PXI system Because all remote control products are software transparent no additional programming is required PXI Embedded Controllers mbedded controllers eliminate the need for an external PC therefore providing a complete system contained in the PXI chassis PXI embedded controllers are typically built using standard PC components in a small PXI package For example the NI PXI 8187 controller has a Pentium 4 M 2 5 GHz processor up to 1 GB of DDR RAM a hard drive and standard PC peripherals such as USB 2 0 Ethernet serial and parallel ports Additionally you can install your choice of OSs on the PXI controller including Windows 2000 XP or LabVIEW Real Time bat were a a ia Tes ao a iis LE 2of4 04 06 2006 09 59 AM What Is PXI Tutorial Products and Services National Instruments http zone n1 com devzone conceptd nsf webmain 5D 1 A4BAB15C82C 3 of 4 Lt
7. rds can be installed in PXI systems using carrier modules For example the National Instruments PXI 8221 PC Card Carrier can be used to connect CardBus and PCMCIA devices to PXI systems PXI also preserves investments in stand alone instruments or VXI systems by providing standard hardware and software for communication to these systems For example interfacing a PXI system to GPIB based instrumentation is no different with a PXI GPIB module than it is with a PCI GPIB module The software is identical Additionally a number of methods are available for interfacing PXI and VXI together For more information refer to the Web Event on Hybrid PXI and VXI Systems Software Architecture Because PXI hardware is based on standard PC technologies such as the PCI bus as well as standard CPUs and peripherals the standard Windows software architecture is familiar to users as well Development and operation of Windows based PXI systems is no different from that of a standard Windows based PC Additionally because the PXI backplane uses the industry standard PCI bus writing software to communicate with PXI devices is in most cases identical to that of PCI devices For example software to communicate to an NI PXI 6251 multifunction data acquisition module is identical to that of an NI PCI 6251 board in a PC Therefore existing application software example code and programming techniques do not have to be rewritten or reused when moving software between PC ba
8. sed and PXI based systems Figure 6 Two different packages one software standard In software communication with a PXI module bottom is identical to that with a PCI board top As an alternative to Windows based systems you can use a real time software architecture for time critical applications requiring deterministic loop rates and headless operation no keyboard mouse or monitor Additional information on using LabVIEW Real Time with PXI systems is available at www ni com realtime System Configuration Configure PXI Systems Online with the PXI Advisor at ni com pxiadvisor The fastest and easiest way to specify and configure your new PXI system is by using the online PX Advisor or PXI SCX Advisor The advisors lead you through a series of questions to help you build your new PXI system with a system controller software modules accessories and PXI or PXI SCXI combination chassis You build your system by answering simple questions and selecting the products best suited to your needs and you can print or export the image of your PXI system for use in proposals or design reviews Additionally the advisors will make recommendations on technical matters such as specific slot placement of modules cables and terminal accessories and integrated software packages The advisors also use behind the scenes logic to prevent incompatible configurations For example if you select a LabVIEW Real Time PXI controller the advisors will automa
9. tically restrict PXI measurement module selection to only those compaatible with LabVIEW Real Time When you are satisfied with your configuration you can pass that configuration to a National Instruments representative for order or you can automatically order through the online store With NI Factory Installation Services as part of your order you will receive your PXI system just as you configured it NI installs your selected PXI modules in your chassis and installs any memory upgrades National Instruments application software and required driver software on your embedded controller Summary PXI modular instrumentation defines a rugged computing platform for measurement and automation users that clearly takes advantage of the technology advancements of the mainstream PC industry By using the standard PCI bus PXI modular instrumentation systems can benefit from widely available software and hardware components The software applications and OSs that run on PXI systems are already familiar to users because they are already in use on common desktop computers PXI meets your needs by adding rugged industrial packaging plentiful slots for I O and features that provide advanced timing and triggering capabilities Visit ni com pxi for more information on PXI including links to product pages pricing datasheets and specifications If you have any additional questions you can contact a Technical Sales Representative either by phone at 888 280
10. us interface kit provides a 50 MB s PCI to PCI bridge from the laptop computer to the PXI chassis Users now have the advantage of mobile portable PXI systems with laptop control of PXI You can purchase any ExpressCard MXI compatible laptop or PCMCIA CardBus compatible laptop to remotely control your PXI system For more information please refer to Laptop control of PXI PC Control of PXI With MXI Express and MXI 4 interface kits users can control PXI systems directly from desktop workstation or server computers During boot up the computer will recognize all peripheral modules in the PXI system as PCI devices one oe ee Pee Pe a re Fe EH og Figure 4a Remote control with 2 port MXI Express provides simultaneous control of two PXI chassis with combined 160 MB s throughput The MXI Express interface kit provides a 110 MB s PCI Express to PCI bridge from the PC to the PXI chassis With the NI PXI PCle8362 2 port interface kit users will be able to control two PXI systems simultaneously from a single PC Figure 4b Remote control with MXI 4 provides PC control of PXI as well as multichassis PXI systems The MXI 4 interface kit provides a 78 MB s PCI to PCI bridge from PC to the PXI system MXI 4 interface kit comes with low cost copper links or fiber optic links for both extended distances and electrical isolation As shown in Figure 4b you can build multichassis PXI systems with MXI 4 as well Using a MXI 4 link you

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