National Instruments SCXI Series User manual

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.
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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
1
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
63
SCXI1140
5
®
MAINFRAME
SCXI
5
4
3
2
1
POWER
RESET
ADDRESS
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©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
12
And
Or
And
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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
ON
5
4
3
2
1
SCXI
120Vac
~
®
5
4
3
2
1
POWER
RESET
ADDRESS
1 2
5
6
4
3
SCXI
120Vac
~
ADDRESS
ON
5
4
3
2
1
21
8
5
3
4
6
7

©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
3
1
2

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
®
5
4
3
2
1
1
2
1
Or
®
5
4
3
2
1
ADDRESS
4
3
2
1

©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.
ON
8
1
2
3
4
5
6
7
12
9
10
11
ADDRESS BAUD
1
3
2
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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
®
5
4
3
2
1
ADDRESS
1
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©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
1
3
2
4
4
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
1
3
2
4
FUSE
PULL
TONEXT CHASSIS
FROMDAQ BOARD OR PREVIOUSCHASSIS
SCXI-1346
SHIELDED MULTI-CHASSISADAPTER
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