National Instruments PXI-7854 Bedienungsanleitung

PXI-7854

Getting Started with R Series Multifunction RIO

This document explains how to install and configure National Instruments PCI/PXI-781xR,

PCI/PXI-783xR, PCIe/PXI-784xR, and PCIe/PXI-785xR, referred to collectively as NI 78xxR devices.

This document also contains a tutorial section that demonstrates how to begin taking a measurement

using a LabVIEW FPGA example VI.

Figure 1. PCI, PCI Express, and PXI R Series Devices

NI 78xx R Required Components

The following items are necessary to set up and use the NI 78xxR:

❑The following software packages:

–LabVIEW

– LabVIEW FPGA Module

– NI-RIO device drivers

– (Optional) LabVIEW Real-Time Module

Refer to Step 1. Install Application Software and Driver, for information on R Series software

support.

❑Development computer or PXI/CompactPCI chassis and PXI/CompactPCI embedded controller

running Windows Vista/XP/2000.

❑At least one cable and accessory for connecting signals to the NI 78xxR. For a list of applicable

cable and accessory options, refer to the Connectivity Options section.

Getting Started with R Series Multifunction RIO 2 ni.com

Step 1. Install Application Software and Driver

Before installing the NI 78xxR, you need to install the application software and device driver. Visit

ni.com/info and enter rdsoftwareversion to determine which minimum versions of software

you need for the device you are using.

Refer to the LabVIEW Release Notes for installation instructions for LabVIEW and system requirements

for the LabVIEW software. Refer to the LabVIEW Upgrade Notes for additional information about

upgrading to the most recent version of LabVIEW for Windows.

Refer to the LabVIEW FPGA Module Release and Upgrade Notes for installation instructions and

information on getting started with the LabVIEW FPGA Module.

Refer to the LabVIEW Real-Time Module Release and Upgrade Notes for system requirements,

installation instructions, and additional information on using the LabVIEW Real-Time Module.

Refer to the NI-RIO Readme on NI-RIO installation media for system requirements and installation

instructions for the NI-RIO driver.

The listed documents are available at ni.com/manuals. In LabVIEW 8.0 or later, you can also view

the LabVIEW Manuals directory that contains these documents by selecting Start»All Programs»

National Instruments»LabVIEW»LabVIEW Manuals.

Step 2. Install the Device, Accessories, and Cables

This section describes how to unpack and install the NI PCI/PCIe/PXI-78xxR devices.

Note You must install NI-RIO device driver software before installing the NI 78xxR.

Unpacking

The NI 78xxR is shipped in an antistatic package to prevent electrostatic discharge from damaging

device components. To prevent such damage when handling the device, take the following precautions:

• Ground yourself using a grounding strap or by holding a grounded object, such as your computer

chassis.

• Touch the antistatic package to a metal part of the computer chassis before removing the device

from the package.

Caution Never touch the exposed pins of connectors.

Remove the device from the package and inspect the devices for loose components or any other sign of

damage. Notify NI if the device appears damaged in any way. Do not install a damaged device into the

computer.

Store the NI 78xxR in the antistatic envelope when not in use.

©National Instruments Corporation 3 Getting Started with R Series Multifunction RIO

Installing the NI 78xx R

You can install the NI PCI/PCIe-78xxR in any available PCI/PCI Express expansion slot in the computer,

and the NI PXI-78xxR in any available peripheral slot in the PXI or CompactPCI chassis. To achieve the

best noise performance, leave as much room as possible between the NI PCI/PCIe-78xxR and other

boards.

Note You must install the software before installing the hardware. For software installation

information, refer to Step 1. Install Application Software and Driver.

1. Power off and unplug the computer or PXI chassis.

Caution Refer to the Read Me First: Safety and Electromagnetic Compatibility document packaged

with your PXI chassis or device before removing equipment covers or connecting or disconnecting

any signal wires.

2. Remove the computer cover and/or the expansion slot cover on the computer, or the filler panel of

an unused PXI slot on the PXI chassis.

3. Touch any metal part of the computer or chassis to discharge any static electricity.

4. For the NI PCI/PCIe-78xxR, insert the device into the applicable PCI/PCI Express system slot on

your computer. Gently rock the device into place. Do not force the device into place. For the

NI PXI-78xxR, insert the device into the PXI slot. Use the injector/ejector handle to fully inject the

NI PXI-78xxR into place.

Figure 2. Installing an NI PCI/PCIe-78xxR Device

1 NI PCI/PCIe-78xxR Device 2 PCI/PCI Express System Slot 3 PC with PCI/PCI Express Slot

Getting Started with R Series Multifunction RIO 4 ni.com

Figure 3. Installing an NI PXI-78xxR Device in a PXI Chassis

5. For the NI PCI/PCIe-78xxR, secure the device mounting bracket to the computer back panel rail.

For the NI PXI-78xxR, secure the device front panel to the chassis front panel mounting rail using

the front-panel mounting screws.

6. For the NI PCI/PCIe-78xxR, replace the computer cover, if applicable.

7. Plug in and power on the computer or PXI chassis.

To confirm that your device is recognized, complete the following additional steps:

1. Select Start»All Programs»National Instruments»Measurement & Automation to open

Measurement & Automation Explorer (MAX).

2. Expand Devices and Interfaces.

3. Verify that the device appears under Devices and Interfaces»RIO Devices.

1 PXI Chassis

2 PXI System Controller

3NIPXI-78

xxR Device

4 Injector/Ejector Handle

5 Front-Panel Mounting Screws

6 Module Guides

7 Power Switch

PXI-1000B

©National Instruments Corporation 5 Getting Started with R Series Multifunction RIO

Step 3. Connect Signals

Figure 4 shows the I/O connector pin assignments and locations for NI 781xR digital-only R Series

devices. Figure 5 shows the I/O connector pin assignments and locations for NI 783xR/784xR/785xR

Multifunction R Series devices.

Figure 4. NI 781xR Connector Pin Assignments and Locations

DGND

+5V

DIO28

DIO31

DIO33

DIO35

DIO37

DIO39

DIO0

DIO2

DIO3

DIO5

DIO6

DIO7

DIO8

DIO1

DIO4

DIO9

DIO10

DIO11

DIO12

DIO13

DIO14

DIO15

DIO16

DIO17

DIO18

DIO19

DIO20

DIO21

DIO22

DIO23

DIO24

DIO25

DIO26

DIO27

DIO29

DIO30

DIO32

DIO34

DIO36

DIO38

351

362

373

38 4

395

40 6

41 7

42 8

439

44 10

45 11

46 12

47 13

4814

49 15

50 16

51 17

52 18

5319

54 20

55 21

56 22

57 23

5824

59 25

60 26

61 27

62 28

6329

64 30

65 31

66 32

67 33

6834

CONNECTOR 1

(RDIO)

TERMINAL 34

TERMINAL 68

TERMINAL 35

TERMINAL 1

TERMINAL 35

TERMINAL 1

TERMINAL 34

TERMINAL 68

TERMINAL 34

TERMINAL 68

TERMINAL 35

TERMINAL 1

CONNECTOR 0

(RDIO)

CONNECTOR 2

(RDIO)

TERMINAL 35

TERMINAL 1

TERMINAL 34

TERMINAL 68

CONNECTOR 3

(RDIO)

Getting Started with R Series Multifunction RIO 6 ni.com

Figure 5. NI 783xR/784xR/785xR Connector Pin Assignments and Locations

Caution Connections that exceed any of the maximum ratings of input or output signals on the

NI 78xxR can damage the NI 78xxR device and the computer or chassis. NI is not liable for any

damage resulting from such signal connections. For the maximum input and output ratings for each

signal, refer to the NI R Series Multifunction RIO Specifications, available at ni.com/manuals.

+5V

DGND

DIO8

DIO10

DIO12

DIO14

AOGND7

AOGND6

AOGND5

AOGND4

AOGND3

AOGND2

AOGND1

AOGND0

No Connect

AI7–1

AIGND7

AI6–1

AI5–1

AIGND5

AI4–1

AI3–

AIGND3

AI2–

AI1–

AIGND1

AI0–

+5V

DIO1

DIO2

DIO4

DIO5

DIO6

DIO7

DIO0

DIO3

DIO9

DIO11

DIO13

DIO15

AO71

AO61

AO51

AO41

AO3

AO2

AO1

AO0

AISENSE

AI7+1

AIGND6

AI6+1

AI5+1

AIGND4

AI4+1

AI3+

AIGND2

AI2+

AI1+

AIGND0

AI0+

351

362

373

38 4

395

40 6

41 7

42 8

439

44 10

45 11

46 12

47 13

4814

49 15

50 16

51 17

52 18

5319

54 20

55 21

56 22

57 23

5824

59 25

60 26

61 27

62 28

6329

64 30

65 31

66 32

67 33

6834

1No Connect on the NI 7830R

DGND

+5V

DIO28

DIO31

DIO33

DIO35

DIO37

DIO39

DIO0

DIO2

DIO3

DIO5

DIO6

DIO7

DIO8

DIO1

DIO4

DIO9

DIO10

DIO11

DIO12

DIO13

DIO14

DIO15

DIO16

DIO17

DIO18

DIO19

DIO20

DIO21

DIO22

DIO23

DIO24

DIO25

DIO26

DIO27

DIO29

DIO30

DIO32

DIO34

DIO36

DIO38

351

362

373

38 4

395

40 6

41 7

42 8

439

44 10

45 11

46 12

47 13

4814

49 15

50 16

51 17

52 18

5319

54 20

55 21

56 22

57 23

5824

59 25

60 26

61 27

62 28

6329

64 30

65 31

66 32

67 33

6834

CONNECTOR 1

(RDIO)

TERMINAL 34

TERMINAL 68

TERMINAL 35

TERMINAL 1

TERMINAL 35

TERMINAL 1

TERMINAL 34

TERMINAL 68

TERMINAL 34

TERMINAL 68

TERMINAL 35

TERMINAL 1

CONNECTOR 0

(RMIO)

CONNECTOR 2

(RDIO)

©National Instruments Corporation 7 Getting Started with R Series Multifunction RIO

The +5V terminals on the I/O connector supply +5 V referenced to D GND. Use these terminals to

power external circuitry. All NI 78xxR devices are equipped with a fuse to protect the supply from

overcurrent conditions. Refer to the R Series Multifunction RIO User Manual, available at ni.com/

manuals, for information about the device-specific fuses.

Connectivity Options

Accessing the signals on the I/O connectors requires at least one cable and one signal accessory. Table 1

summarizes the National Instruments connectivity options available for use with the NI 78xxR device.

For detailed information about connecting I/O signals, refer to the NI R Series Multifunction RIO User

Manual, available at ni.com/manuals.

Table 1. R Series Connectivity Options

Cable

Connector

Accessory DescriptionNI 781xR

NI 783xR/

784xR/785xR

SHC68-68-RMIO

(NI Recommended)

— 0 NI SCB-68 High-performance shielded cable wired

specifically for signal connection from

the RMIO connector†to the NI SCB-68

terminal block to provide higher signal

integrity and noise immunity.

SHC68-68-RDIO

(NI Recommended)

0, 1, 2, 3 1, 2*NI SCB-68 High-performance shielded cable wired

specifically for signal connection from

the RDIO connector†to the NI SCB-68

terminal block to provide higher signal

integrity and noise immunity.

SH68-C68-S 0, 1, 2, 3 1, 2*NI SCB-68 Basic shielded cable for signal

connection from the RMIO or RDIO

connector to the NI SCB-68 terminal

block for noise reduction.

*NI 7830R does not have Connector 2.

†For a diagram of the twisted pairs in the SHC68-68-RMIO and SHC68-68-RDIO cables and the signals to which they

correspond, go to ni.com/info and enter the info code rdrmio.

Getting Started with R Series Multifunction RIO 8 ni.com

Step 4. Using Your NI 78xx R Device with a LabVIEW FPGA Example VI

(NI 783xR/784xR/785xR Only)

The NI-RIO driver installation includes a variety of example projects to help get you started. This

section demonstrates how to use an existing LabVIEW FPGA example project to take an analog input

measurement with the NI 783xR/784xR/785xR device.

Note Examples available for your device are dependent on the device-specific minimum software

requirements. For more information on software requirements for your device, refer to Step 1. Install

Application Software and Driver.

Each R Series example project includes:

• A LabVIEW FPGA VI that can be compiled and run embedded in FPGA hardware

• A Host VI that runs in LabVIEW for Windows and interacts with the LabVIEW FPGA VI

Each example is configured for a specific target and might not be pre-configured for your device. To use

an example for a different target, you must copy the items contained within the VI to a new FPGA target.

Note To acquire real-world data in the analog input measurement taken in this example,

you will also need to provide your own signal source, such as a battery or function generator.

To access the analog input example project and take a measurement, complete the following steps:

1. Launch LabVIEW.

2. In the Getting Started window, click Find Examples to display the NI Example Finder.

3. In the NI Example Finder window, select Hardware Input and Output»R Series. This directory

holds several example projects designed to help you get started using your R Series device.

4. Select Basic I/O and then select Analog Input - R Series.lvproj.

5. The Analog Input example project opens in the Project Explorer window. This project is

precompiled for the NI PCI-7831R. If you are not using an NI PCI-7831R, then you need

to copy the example files into a new target directory and recompile the code. To compile

Analog Input - R Series.lvproj for a new R Series target, complete the following steps:

a. In the Project Explorer window, right-click My Computer and select New»Targets and

Devices to create a new target.

b. Select the Existing target or device radio button.

c. Expand the FPGA Target folder to display a list of the R Series devices you can add.

From the list, select the device for which you want to create a new directory, and click OK.

If your R Series device does not appear under this tree structure, refer to the Step 2. Install the

Device, Accessories, and Cables section and confirm that the device was installed correctly.

d. In the Project Explorer window, expand the original FPGA target and locate the Items to

Move folder. This folder holds all the target VIs and I/O resources necessary to run the

example VI. Click on the folder and drag it to the new FPGA Target.

Note The new target must support all of the analog input items included in this folder.

e. Right-click the Analog Input (FPGA).vi file within the Items to Move folder and select

Compile to recompile the FPGA VI. Recompiling takes several minutes. When the bitstream

generation is complete, close the LabVIEW FPGA Compile Server.

f. Open Analog Input (Host).vi under My Computer and switch to the block diagram to update

the host VI and its references to the FPGA VI.

g. On the block diagram, right-click the Open FPGA VI Reference function and select

Configure Open FPGA VI Reference from the shortcut menu.

h. In the Configure Open FPGA VI Reference dialog box, click the Browse Project button by

the Open»VI field to open the Select VI dialog box.

i. In the Select VI dialog box, select Analog Input (FPGA).vi in the new target and click OK.

j. Click OK in the Configure Open FPGA VI Reference dialog box.

Note (LabVIEW version 8.5.1 and earlier) LabVIEW versions 8.5.1 and earlier do not use the

Configure Open FPGA VI Reference dialog to update the FPGA target in the host VI. For LabVIEW

version 8.5.1 and earlier, right-click the Open FPGA VI Reference function on the block diagram

and choose Select VI from the shortcut menu. In the Select VI dialog box, select Analog Input

(FPGA).vi in the new target and click OK.

k. In the Project Explorer window, right-click the original FPGA target and select Remove to

delete it from the project.

l. Save the project to a new directory by selecting File»Save As.

6. Click the Run button in Analog Input (Host).vi to run the VI. The host VI displays the data being

acquired by the R Series device. To view real-world data, wire a signal source or voltage source to

AI0+ (RMIO pin 68) and AI0– (RMIO pin 34) of the terminal block.

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