National Instruments SCXI Series 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 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.

™

SCXI Quick Start Guide 2 ni.com

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.

The following symbols may be on your device.

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 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

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.

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

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 16V

SCXI1140

MAINFRAME

SCXI

POWER

RESET

ADDRESS

2463524 6352 4

©National Instruments Corporation 3 SCXI Quick Start Guide

Figure 2. For SCXI Chassis Only

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. For instructions on creating NI-DAQmx simulated devices, in Measurement

& Automation Explorer, select Help»Help Topics»NI-DAQmx»MAX Help.

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.

1 Chassis Cord and Adapter Assembly

2 DAQ Device

3 USB Cable

4 SCXI USB Device

And

SCXI Quick Start Guide 4 ni.com

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.

Figure 4. PXI/SCXI Combination Chassis Setup

1 Front

2Back

3 Chassis Power Switch

4 Chassis Address Switch

5 Voltage Selection Tumbler

6 Power Cord Connector

1 Front

2Back

3 Voltage Selection Tumbler

4 Power Cord Connector

5 Address Switch

6 SCXI Power Switch

7 PXI Power Switch

8System Controller

ADDRESS

SCXI

120Vac

POWER

RESET

ADDRESS

1 2

SCXI

120Vac

ADDRESS

©National Instruments Corporation 5 SCXI Quick Start Guide

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

SCXI Quick Start Guide 6 ni.com

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

©National Instruments Corporation 7 SCXI Quick Start Guide

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.

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.

Right-click the device name under Devices and Interfaces,and 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 Help Select Start»All Programs»National Instruments»NI-DAQ»NI-DAQmx Help.

ni.com/

manuals

Refer to the device documentation.

ADDRESS BAUD

SCXI Quick Start Guide 8 ni.com

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.

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

©National Instruments Corporation 9 SCXI Quick Start Guide

• 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.

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

4 Screws

FUSE

PULL

SCXI Quick Start Guide 10 ni.com

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.

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.

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

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