National Instruments SCXI Series Manual de usuario

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 guides

included with the DAQ device and available on the NI-DAQ software media and from ni.com/

manuals, before continuing.

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

Readme 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 media that contains device documentation.

™

SCXI Quick Start Guide 2 ni.com

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

Electromagnetic Compatibility document, shipped with the device, for precautions to take.

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

• NI LabVIEW, NI LabWindows™/CVI™, NI LabVIEW SignalExpress, NI Measurement Studio,

Visual C++, or 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

3 USB Cable

4 SCXI USB Device

C17 18 19 20 21 22 2324 25 26 27 28 29 30 31 32 C

V1 2 34 5 6 7 8 9 10 11 12 1314 15 16 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 Electromagnetic Compatibility 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.

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

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 to order a configured PXI/SCXI combination chassis.

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.

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

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 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. Ensure 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.

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

Figure 5. Installing the PXI Module in a New Chassis

1 Front

2Back

3 Voltage Selection Tumbler

4 Power Cord Connector

5 Address Switch

6 SCXI Power Switch

7 PXI Power Switch

8System Controller

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

SCXI

120Vac

ADDRESS

©National Instruments Corporation 5 SCXI Quick Start Guide

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 these 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.

Figure 7. Installing an SCXI USB Module

1 Thumbscrews 2 Module

1 Personal Computer

2USBHub

3USBCable

4 SCXI USB Device

ADDRESS

SCXI Quick Start Guide 6 ni.com

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, install additional SCXI modules in any available chassis slots. Refer to 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. The following table lists device terminal/pinout locations.

For information about sensors, refer to ni.com/sensors. 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. If you are using a TBX terminal block, refer to its guide.

1 New SCXI Module

2 Existing SCXI Module

3 SCXI Chassis

4 Existing DAQ Device

Location How to Access Pinout

MAX Right-click the device name under Devices and Interfaces, and select Device Pinouts.

Select Help»Online Device Documentation. A browser window opens to ni.com/manuals

with the results of a search for relevant device documents.

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

channel in the task.

NI-DAQmx Refer to the NI-DAQmx Help that installs with NI-DAQmx.

ni.com/manuals Refer to the device documentation.

ADDRESS BAUD

©National Instruments Corporation 7 SCXI Quick Start Guide

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.

• 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.

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

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

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

ADDRESS

SCXI Quick Start Guide 8 ni.com

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 DAQ communicating 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.

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

the chain.

1 SCXI Chassis

2 SCXI-1349 Cable Adapter

368-Pin Shielded Cable

4 Screws

FUSE

PULL

©National Instruments Corporation 9 SCXI Quick Start Guide

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 DAQ communicating 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 versions earlier than Windows Vista recognize any newly installed device when the computer

restarts. If the Found New Hardware wizard opens, Install the software automatically as

recommended for each device.

NI Device Monitor

After Windows detects newly installed NI USB devices, NI Device Monitor runs automatically at

startup.

Make sure the NI Device Monitor icon, shown at left, is visible in the taskbar notification area.

Otherwise, the NI Device Monitor does not open. To turn the NI Device Monitor on, unplug your device,

restart NI Device Monitor by selecting Start»All Programs»National Instruments»NI-DAQ»

NI Device Monitor, and plug in your device.

The NI Device Monitor prompts you to select from the following options. These options may vary,

depending on the devices and software installed on your system.

•Begin a Measurement with This Device Using NI LabVIEW SignalExpress—Opens a

NI-DAQmx step that uses the channels from your device in LabVIEW SignalExpress.

•Begin an Application with This Device—Launches LabVIEW. Choose this option if you have

already configured your device in MAX.

•Run Test Panels—Launches MAX test panels for your device.

•Configure and Test This Device—Opens MAX.

•Take No Action—Recognizes your device but does not launch an application.

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

6Sensors

7 SCXI Chassis

–

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