National Instruments SCXI-1000 Manuale utente

SCXI Quick Start Guide

Signal Conditioning eXtensions for Instrumentation

This document contains English, French, and German language instructions. For Japanese, Korean,

and Simplified Chinese language instructions, refer to the other document in your kit.

Ce document contient des instructions en anglais, français et allemand. Pour les consulter en japonais,

coréen et chinois simplifié, reportez-vous à l’autre document dans votre kit.

Dieses Dokument enthält Anleitungen auf Englisch, Französisch und Deutsch. Anleitungen auf

Japanisch, Koreanisch und in vereinfachtem Chinesisch finden Sie in dem anderen Dokument in

diesem Kit.

This document explains how to install and configure SCXI signal conditioning modules in SCXI-1000,

SCXI-1001, SCXI-1000DC, or PXI/SCXI combination chassis, confirm the module and chassis are

operating properly, and set up multichassis systems. It also describes the NI-DAQmx software relative

to SCXI and integrated signal conditioning products. This document assumes you have already installed,

configured, and tested your NI application and driver software, and the data acquisition (DAQ) device

to which you will connect the SCXI module. If you have not, refer to the DAQ Getting Started Guide

included with the DAQ device and available on the NI-DAQ CD and from ni.com/manuals, before

continuing.

For instructions on configuring Traditional NI-DAQ (Legacy), refer to the Traditional NI-DAQ (Legacy)

Readme, accessible from Start»All Programs»National Instruments»NI-DAQ, after you have

installed the software. Refer to the NI Switches Getting Started Guide, available at ni.com/manuals,

for switch information.

Step 1. Unpack the Chassis, Module, and Accessories

Remove the chassis, module, and accessory from the packaging and inspect the products for loose

components or any sign of damage. Notify NI if the products appear damaged in any way. Do not install

a damaged device.

For safety and compliance information, refer to the device documentation packaged with your device,

at ni.com/manuals, or the NI-DAQmx CD that contains device documentation.

The following symbols may be on your device.

This icon denotes a caution, which advises you of precautions to take to avoid injury, data loss, or a

system crash. When this symbol is marked on a product, refer to the Read Me First: Safety and

Radio-Frequency Interference document, shipped with the device, for precautions to take.

™

SCXI Quick Start Guide 2 ni.com

When this symbol is marked on a product, it denotes a warning advising you to take precautions to avoid

electrical shock.

When this symbol is marked on a product, it denotes a component that may be hot. Touching this

component may result in bodily injury.

Step 2. Verify the Components

Make sure you have the specific combination of the SCXI system components, shown in Figures 1

and 2, needed for your application along with the following the following items:

• NI-DAQ 7.xor later software and documentation

• At least one of the following software packages and documentation:

– NI LabVIEW

– NI LabWindows™/CVI™

– NI LabVIEW SignalExpress

– NI Measurement Studio

– Visual C++

– Visual Basic

• SCXI product manuals

• 1/8 in. flathead screwdriver

• Numbers 1 and 2 Phillips screwdrivers

• Wire insulation strippers

• Long nose pliers

Figure 1. SCXI System Components

Figure 2. For SCXI Chassis Only

1 Terminal Block or TBX Accessories (Optional)

2 PXI Module

3 SCXI Modules

4 PXI/SCXI Combination Chassis with Controller

5 SCXI Chassis

6 Chassis Power Cord

1 Chassis Cord and Adapter Assembly

2 DAQ Device

3USBCable

4 SCXI USB Device

C1718 19 20 21 22 2324 25 26 27 28 29 30 31 32C

V12 34 5 6 7 89 10111213141516 V

SCXI1140

MAINFRAME

SCXI

POWER

RESET

ADDRESS

2 41 6352 41 6352 4

And

©National Instruments Corporation 3 SCXI Quick Start Guide

Step 3. Set Up the Chassis

Caution Refer to the Read Me First: Safety and Radio-Frequency Interference document packaged

with your chassis before removing equipment covers or connecting or disconnecting any signal

wires. Follow proper ESD precautions to ensure you are grounded before installing the hardware.

You can test NI-DAQmx applications without installing hardware by using an NI-DAQmx simulated

device. Refer to the Measurement & Automation Explorer Help for NI-DAQmx by selecting Help»Help

Topics»NI-DAQmx in Measurement & Automation Explorer for instructions on creating NI-DAQmx

simulated devices and importing NI-DAQmx simulated device configurations to physical devices.

Refer to the Windows Device Recognition section after installing a DAQ device or an SCXI

USB Device.

SCXI Chassis

1. Power off and unplug the chassis.

2. Set the chassis address if your chassis is addressable. Some older chassis are not addressable.

• If the chassis has address switches, you can set the chassis to a desired address. When

configuring the chassis in MAX in Step 12, make sure the software address settings match the

hardware address settings. All switches are shown in the off position, the default setting, in

Figure 3.

• Some older chassis use jumpers inside the front panel instead of chassis address switches.

Older chassis also differ in fuses and AC power selection. Refer to the chassis documentation

for more information.

3. Confirm the correct power settings (100, 120, 220, or 240 VAC).

4. Connect the power cord.

Figure 3. SCXI Chassis Setup

1 Front

2Back

3 Chassis Power Switch

4 Chassis Address Switch

5 Voltage Selection Tumbler

6 Power Cord Connector

ADDRESS

SCXI

120Vac

POWER

RESET

ADDRESS

1 2

SCXI Quick Start Guide 4 ni.com

PXI/SCXI Combination Chassis

You must have a system controller installed in the PXI side of the chassis. Refer to ni.com/info and

type rdfis5 for more information on ordering a configured PXI/SCXI combination chassis through

Factory Installation Services.

1. Power off both the PXI and SCXI power switches, and unplug the chassis.

2. Set the SCXI chassis address switch positions to the desired address. In Figure 4, all switches are

shown in the off position.

3. Set the voltage selection tumbler to the correct voltage for your application. Refer to the chassis

documentation for more information.

4. Connect the power cord.

Figure 4. PXI/SCXI Combination Chassis Setup

Step 4. Install the Modules

Caution Make sure the chassis is completely powered off. SCXI modules are not hot-swappable.

Adding or removing modules while the chassis is powered on can result in blown chassis fuses or

damage to the chassis and modules.

PXI/SCXI Combination Chassis

To install the PXI E Series or M Series DAQ communicating device in the right-most slot of the

PXI chassis, complete the following steps:

1. Touch any metal part of the chassis to discharge static electricity.

2. Place the module edges into the top and bottom PXI module guides, as shown in Figure 5.

3. Slide the module to the rear of the chassis. Make sure that the injector/ejector handle is pushed

down.

4. When you begin to feel resistance, pull up on the injector/ejector handle to inject the module into

the frame.

5. Secure the module to the chassis front panel mounting rail using the two screws.

1Front

2Back

3 Voltage Selection Tumbler

4 Power Cord Connector

5 Address Switch

6 SCXI Power Switch

7 PXI Power Switch

8System Controller

SCXI

120Vac

ADDRESS

©National Instruments Corporation 5 SCXI Quick Start Guide

Figure 5. Installing the PXI Module in a New Chassis

SCXI Chassis

1. Touch any metal part of the chassis to discharge static electricity.

2. Insert the module into the SCXI slot.

3. Secure the module to the chassis front panel mounting rail using the two thumbscrews.

Figure 6. Installing the SCXI Module in a New Chassis

SCXI USB Modules

SCXI USB modules are plug-and-play, integrated signal conditioning modules that communicate

between an SCXI system and a USB-compatible computer or USB hub, so no intermediate DAQ device

is needed. SCXI USB modules, such as the SCXI-1600, cannot be used in a PXI/SCXI combination

chassis or in multichassis systems. After you install the module in the chassis, complete the following

steps:

1. Connect the USB cable from the computer port or from any other USB hub to the USB port on the

SCXI USB module.

2. Attach the cable to the strain relief using a cable tie.

1 PXI DAQ Module 2 Injector/Ejector Handle 3 Injector/Ejector Rail

1 Thumbscrews 2 Module

SCXI Quick Start Guide 6 ni.com

Figure 7. Installing an SCXI USB Module

Add a Module to an Existing SCXI System

You also can add a module to an existing SCXI system in multiplexed mode. If your system already has

a controller established, you can simply install additional SCXI modules in any available chassis slots

as previously described. Refer to the list of SCXI modules in Step 7. Install the Cable Adapter to

determine which module to connect to the cable adapter, if applicable.

Figure 8. Installing the SCXI Module in an Existing System

Step 5. Attach Sensors and Signal Lines

Attach sensors and signal lines to the terminal block, accessory, or module terminals for each installed

device.

Right-click the device name in MAX to see the device pin assignments (pinouts). Pinouts are also in the

Device Terminals in the Measurement & Automation Explorer Help for NI-DAQmx, accessible from

Help»HelpTopics»NI-DAQmx»MAX Help for NI-DAQmx.

You can view and print a connection diagram for NI-DAQmx tasks and virtual channels in your system

through the DAQ Assistant. Select the task or virtual channel and click the Connection Diagram tab.

Select each virtual channel in the task to view the terminal names and numbers for connections from

sensor to connector block.

For more specific descriptions of the pin assignments or for more information about configuring the

switch or jumper settings on the hardware, refer to the module user manual included in your kit,

at ni.com/manuals, or on the NI-DAQmx CD that contains the device documentation.

1 Personal Computer

2USBHub

3USBCable

4 SCXI USB Device

1 New SCXI Module

2 Existing SCXI Module

3 SCXI Chassis

4 Existing DAQ Device

ADDRESS

ADDRESS BAUD

©National Instruments Corporation 7 SCXI Quick Start Guide

For information about sensors, refer to ni.com/sensors or Sensors in the NI-DAQmx Help, which

you can access from Start»All Programs»National Instruments»NI-DAQ»NI-DAQmx Help.

For information about IEEE 1451.4 TEDS smart sensors, refer to ni.com/teds.

Step 6. Attach the Terminal Blocks

SCXI Chassis or PXI/SCXI Combination Chassis

If you installed direct-connect modules, skip to Step 7. Install the Cable Adapter.

Attach the terminal blocks to the front of the modules. Refer to ni.com/products to determine valid

terminal block and module combinations. Refer to the TBX installation guide if you are using a TBX

terminal block.

Figure 9. Attaching Terminal Blocks

Step 7. Install the Cable Adapter

Single-Chassis System

If you installed an SCXI USB module, such as the SCXI-1600, or are using a PXI/SCXI combination

chassis, skip to Step 9. Power On the SCXI Chassis.

1. Identify the appropriate SCXI module to connect to the cable adapter, such as the SCXI-1349.

If there is an analog input module with simultaneous sampling capability in the chassis, you must

connect that module to the cable assembly, or an error message appears each time you run your

application.

• If all modules are in multiplexed mode, determine which of the modules occurs first in the

following list, and attach the cable adapter to it:

• If your system has both parallel and multiplexed modules, select the multiplexed controller

from the previous list, and attach the cable adapter to it.

1 Modules with Installed Terminal Blocks

2 Attaching a Terminal Block to the SCXI Module

3 SCXI Module Front Panels

SCXI-1520, SCXI-1530, SCXI-1531, SCXI-1540, SCXI-1140

SCXI-1521/B, SCXI-1112, SCXI-1102/B/C, SCXI-1104/C, SCXI-1125, SCXI-1126, SCXI-1141,

SCXI-1142, SCXI-1143, SCXI-1581

SCXI-1120/D, SCXI-1121, SCXI-1100, SCXI-1122

SCXI-1124, SCXI-116x

ADDRESS

SCXI Quick Start Guide 8 ni.com

• If all modules are in parallel mode, attach a cable adapter to each module. The following

modules can run in parallel mode:

2. Insert the 50-pin female connection on the rear of the cable adapter into the 50-pin male connector

on the rear of the appropriate SCXI module.

Caution Do not force the adapter if there is resistance. Forcing the adapter can bend pins.

3. Fasten the adapter to the rear of the SCXI chassis with the screws provided with the SCXI-1349.

Figure 10. Installing the Cable Adapter

Multichassis System

The SCXI-1346 covers the rear connector of two modules. When viewing the chassis from the rear, the

module to the right of the module directly connected to the SCXI-1346 cannot have an external cable

inserted into its rear 50-pin connector.

SCXI-1000 chassis through revision D do not have address jumpers or switches and respond to any

address, but you cannot use them in multichassis systems. Revision E chassis use jumpers on Slot 0 for

chassis addressing. Revision F and later chassis use a DIP switch for chassis addressing.

SCXI-1000DC chassis through revision C do not have address jumpers or switches and respond to any

address, but you cannot use them in multichassis systems. Revision D and later chassis use jumpers on

Slot 0 for chassis addressing.

SCXI-1001 chassis through revision D use jumpers on Slot 0 for chassis addressing. Revision E and later

chassis use a DIP switch for chassis addressing.

To connect the multichassis system, you must use one SCXI-1346 multichassis adapter for every chassis

in the chain except the chassis furthest from the E Series or M Series DAQ device. The last chassis uses

the SCXI-1349 cable adapter.

1. Identify the appropriate SCXI module to connect to the cable adapter. Refer to step 1 of the

previous Single-Chassis System section to determine the appropriate module.

2. Insert the 50-pin female connection on the rear of the cable adapter into the 50-pin male connector

on the rear of the appropriate SCXI module.

3. Fasten the adapter to the rear of the SCXI chassis with the screws provided with the SCXI-1346.

SCXI-1120/D, SCXI-1121, SCXI-1125, SCXI-1126, SCXI-1140, SCXI-1141, SCXI-1142,

SCXI-1143, SCXI-1520, SCXI-1530, SCXI-1531

1 SCXI Chassis

2 SCXI-1349 Cable Adapter

368-Pin Shielded Cable

4Screws

FUSE

PULL

©National Instruments Corporation 9 SCXI Quick Start Guide

4. Repeat steps 1 through 3 for each SCXI chassis in the system, excluding the last SCXI chassis in

the chain.

Figure 11. SCXI-1346 Cable Assembly

5. Install the SCXI-1349 cable adapter into the last SCXI chassis in the chain. Refer to step 1 of the

previous Single-Chassis System section for instructions on installing the SCXI-1349.

Step 8. Connect the Modules to the DAQ Device

Single-Chassis System

If you installed modules in a PXI/SCXI combination chassis, the PXI backplane of the chassis connects

the modules and DAQ device.

If you are using an SCXI chassis, complete the following steps:

1. Connect one end of the 68-pin shielded cable to the SCXI-1349.

2. Connect the other end of the cable to the DAQ device. For M Series devices, connect the cable to

connector 0.

If you are running modules in parallel mode, repeat the steps for each module and DAQ device pair.

Multichassis System

1. Connect one end of a 68-pin shielded cable to the E Series or M Series DAQ device.

2. Connect the other end of the cable to the SCXI-1346 in chassis ID nlabeled FROM DAQ BOARD

OR PREVIOUS CHASSIS.

3. Connect a 68-pin shielded cable to the SCXI-1346 in chassis nlabeled TO NEXT CHASSIS.

4. Connect the other end of the cable to the SCXI-1346 in chassis ID n+1 labeled FROM DAQ

BOARD OR PREVIOUS CHASSIS.

5. Repeat steps 3 and 4 for the remaining chassis until you reach the last chassis.

6. Connect the 68-pin shielded cable to the next to the last chassis in the slot labeled TO NEXT

CHASSIS.

7. Connect the other end of the cable to the SCXI-1349 in the last chassis.

1 SCXI-1000, SCXI-1001, or SCXI-1000DC Chassis

2 SCXI-1346 Cable Adapter

3 Shielded Cable Connecting to TO NEXT CHASSIS

4 Shielded Cable Connecting to FROM DAQ BOARD OR PREVIOUS CHASSIS

FUSE

PULL

TONEXT CHASSIS

FROMDAQ BOARD OR PREVIOUSCHASSIS

SCXI-1346

SHIELDED MULTI-CHASSISADAPTER

TOP

SCXI Quick Start Guide 10 ni.com

Figure 12. Completed SCXI System

Step 9. Power On the SCXI Chassis

If you are using an SCXI chassis, the chassis power switch is shown in Figure 3, SCXI Chassis Setup.

If you are using a PXI/SCXI combination chassis, the PXI and chassis power switches are shown in

Figure 4, PXI/SCXI Combination Chassis Setup.

When the controller recognizes a USB device such as an SCXI-1600 module, the LED on the module

front panel blinks or lights up. Refer to the device documentation for LED pattern descriptions and

troubleshooting information.

Windows Device Recognition

Windows Vista does not prompt the user with Windows device recognition. Earlier versions of Windows

recognize any newly installed device the first time the computer restarts after hardware is installed. On

some Windows systems, the Found New Hardware wizard opens with a dialog box after installation of

an NI device. Install the software automatically (Recommended) is selected by default. Click Next

or Yes to install the software for each device.

After Windows detects newly installed NI USB devices, the NI Device Monitor utility for launching

applications runs automatically at startup. The NI Device Monitor prompts you to select from the

following options, which may vary depending on the devices and software installed on your system:

•Begin a Measurement with LabVIEW launches LabVIEW.

•Begin a Measurement with This Device Using NI LabVIEW SignalExpress opens a DAQ step

that uses the channels from your device in LabVIEW SignalExpress.

•Configure and Test This Device opens MAX to your device so that you can configure settings.

•Run Test Panels launches MAX test panels for your device.

•Take No Action leaves your device in the system but does not launch an application.

Right-click the NI Device Monitor icon in your system tray to use the following features of this utility:

• By default, the checkmark next to Run at Startup causes the NI Device Monitor to run

automatically at system startup. If you remove the checkmark, the utility does not automatically

run at system startup but continues to run when it detects a new device.

1 Shielded Cable Connected to SCXI-1349 Cable Adapter

2 Shielded Cable Connected to SCXI-1346 Cable Adapter

3 DAQ Device

4 Shielded Cable to DAQ Device

5 Terminal Blocks

6 Sensors

7 SCXI Chassis

–

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