National Instruments SC-2345 Carrier, SC-2350 Carrier User Manual

Signal Conditioning

SC-2345/2350 Carrier User Manual

July 2007 371064F-01

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The SC-2345/2350 carrier is warranted against defects in materials and workmanship for a period of one year from the date of shipment, as evidenced by receipts or other documentation. National Instruments will, at its option, repair or replace equipment that proves to be defective during the warranty period. This warranty includes parts and labor.

The media on which you receive National Instruments software are warranted not to fail to execute programming instructions, due to defects in materials and workmanship, for a period of 90 days from date of shipment, as evidenced by receipts or other documentation. National Instruments will, at its option, repair or replace software media that do not execute programming instructions if National Instruments receives notice of such defects during the warranty period. National Instruments does not warrant that the operation of the software shall be uninterrupted or error free.

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Conventions

The following conventions are used in this manual:

<> Angle brackets that contain numbers separated by an ellipsis represent

a range of values associated with a bit or signal name—for example, AO <3..0>.

» The » symbol leads you through nested menu items and dialog box options

to a final action. The sequence File»Page Setup»Options directs you to pull down the File menu, select the Page Setup item, and select Options from the last dialog box.

This icon denotes a note, which alerts you to important information.

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 the product, refer to the Read Me First: Safety and Radio-Frequency Interference document shipped with the product for precautions to take.

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

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

bold Bold text denotes items that you must select or click in the software, such

as menu items and dialog box options. Bold text also denotes parameter names.

italic Italic text denotes variables, emphasis, a cross-reference, or an introduction

to a key concept. Italic text also denotes text that is a placeholder for a word or value that you must supply.

monospace Text in this font denotes text or characters that you should enter from the

keyboard, sections of code, programming examples, and syntax examples. This font is also used for the proper names of disk drives, paths, directories, programs, subprograms, subroutines, device names, functions, operations, variables, filenames, and extensions.

monospace italic

Italic text in this font denotes text that is a placeholder for a word or value that you must supply.

Contents

Chapter 1 Setting up the SC-2345/2350 Carrier

About the SCC Hardware ..............................................................................................1-1

SC-2345 Carrier...............................................................................................1-1

SC-2350 Carrier...............................................................................................1-2

What You Need to Get Started ......................................................................................1-2

Installing the Driver Software........................................................................................1-3

Connecting the SC-2345/2350 Carrier to the DAQ Device ..........................................1-4

Configuring the SC-2345 Carrier as a DAQ Accessory ................................................1-4

Configuring the SC-2350 Carrier as a DAQ Accessory ................................................1-6

TEDS .............................................................................................................................1-9

Importing TEDS Information..........................................................................1-10

Importing Virtual TEDS Sensor Information..................................................1-12

Affixing the Quick Reference Label to the SC-2345 Carrier ........................................1-15

Connecting Power to the SC-2345/2350 Carrier ...........................................................1-15

SCC-PWR01....................................................................................................1-17

SCC-PWR02....................................................................................................1-18

SCC-PWR03....................................................................................................1-19

Installing SCC Modules in the SC-2345/2350 Carrier....................................1-19

Chapter 2 Connecting Signals to the Terminal Block of the SC-2345/2350 Carrier

Rack-Mounting and Stack-Mounting Options...............................................................2-2

Installing the Rack-Mount Kit.........................................................................2-2

Installing the Stack-Mount Kit ........................................................................2-3

Appendix A Specifications

Appendix B Carrier Socket Signal Assignments

Appendix C SCC Power Requirements and Solutions

Contents

Appendix D Common Questions

Glossary

Index

SC-2345/2350 Carrier User Manual viii ni.com

Setting up the SC-2345/2350 Carrier

This document assumes you have already installed, configured, and tested the SC carrier, SCC modules, and the DAQ device to which they are connected. If you have not done so, follow the instructions in the DAQ Getting Started Guide and SCC Quick Start Guide, included with the hardware, before continuing. The SCC Quick Start Guide and DAQ Getting

Started Guide are also available at

Start»Programs»National Instruments»NI-DAQ»Browse Device Documentation after you install the DAQ documentation browser.

About the SCC Hardware

ni.com/manuals or accessible from

SC-2345 Carrier

The SC-2345/2350 carrier transfers signals to and from 68-pin E/M Series data acquisition (DAQ) devices, referred to as the DAQ device in this manual. When used with SCC Series modules and a shielded 68-pin cable, the SC-2345/2350 carrier offers easy-to-use, rugged, low-noise signal conditioning on a per-channel basis. The SC-2345/2350 carrier also has 42 screw terminals for direct connection to the DAQ device digital signals.

Some SC-2345 carrier enclosures are available with configurable connectors to maximize I/O flexibility through the use of panelettes. All SC-2345/2350 carriers are portable enclosures for laptop and desktop applications.

Optional rack-mount and stack-mount accessories enable you to mount the SC-2345/2350 carrier with configurable connectors to suit your application. The rack-mount option is available for standard 19 in. racks.

The SC-2345 carrier supports analog I/O and digital I/O SCC modules. The SC-2345 is available in the following forms:

• SC-2345 connector block—the SC-2345 connector block requires you to pass input signal wires through a strain relief

Chapter 1 Setting up the SC-2345/2350 Carrier

• SC-2345 carrier with configurable connectors and a rear cable connector

• SC-2345 carrier with configurable connectors and a side cable connector

Note Refer to Figure 1-9 and the SCC Quick Start Guide for more information about all

these carrier forms.

SC-2350 Carrier

The SC-2350 carrier supports analog I/O SCC modules. The SC-2350 carrier supports reading from and writing to Transducer Electronic Data Sheet (TEDS) Class II sensors for its analog input SCC modules. The SC-2350 carrier is available with configurable connectors and a side cable connector. Refer to Figure 1-9 and the SCC Quick Start Guide for more information.

What You Need to Get Started

To set up and use the SC-2345/2350 carrier, you need the following items:

❑ Hardware

– SC-2345/2350 carrier with one of the following factory-installed

power modules:

• SCC-PWR01

• SCC-PWR02 and the PS01 power supply

• SCC-PWR03 (requires a 7 to 42 VDC power supply, not included)

– 68-pin E/M Series DAQ device with a shielded 68-pin cable of

less than 2 m length

– 100-pin E Series DAQ device with an SH1006868 cable

(to connect 100-pin devices to two 68-pin connectors)

– One or more SCC modules

– Rack-mount or stack-mount kit (optional)

Note You cannot use the I/O panelettes on the SC-2345 carrier with connector block.

SC-2345/2350 Carrier User Manual 1-2 ni.com

– One or more I/O panelettes

Chapter 1 Setting up the SC-2345/2350 Carrier

❑ Software

– NI-DAQ 7.4 or later for Windows 2000/NT/XP

Note Software scaling of measurements is not supported on the Macintosh operating

system.

❑ Documentation

– SCC Quick Start Guide

– 100-pin or 68-pin E/M Series DAQ device documentation

– DAQ Getting Started Guide

– Read Me First: Safety and Radio-Frequency Interference

– SC-2345 carrier Quick Reference Label, if you have an SC-2345

carrier

❑ Tools

– 1/8 in. flathead screwdriver

– Numbers 1 and 2 Phillips screwdrivers

– Wire insulation strippers

Installing the Driver Software

Install your application development environment (ADE) software and/or NI application software, if you have not already done so, according to their instructions.

Install NI-DAQ, which came with the DAQ device, if you have not already done so. If you do not have version NI-DAQ 7.4 or later, you can either download it from the National Instruments Web site at

downloads

Follow the software prompts to install NI-DAQ. If you do not see the Install NI-DAQ screen when you insert the CD, go to the Windows Start»Run. Type

installer detects the language of your operating system and the screens appear in that language.

or contact a sales representative to request a CD.

:\setup.exe (

is the letter of your CD drive). The NI-DAQ

ni.com/

Chapter 1 Setting up the SC-2345/2350 Carrier

Connecting the SC-2345/2350 Carrier to the DAQ Device

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

before removing equipment covers or connecting or disconnecting any signal wires.

Use a 68-pin shielded cable to connect the SC-2345/2350 carrier to the E/M Series DAQ device. Use connector J24 on the SC-2345/2350 carrier. The pin assignment of J24 is defined by the DAQ device MIO front connector. Refer to Figure 1-9 for the location of connector J24.

The chassis ground terminal on the SC-2345 carrier and the electromagnetic interference (EMI) gasket attached to the strain relief of the SC-2345 carrier are for grounding a floating source (1 mA maximum). Do not use these terminals as safety earth grounds.

Configuring the SC-2345 Carrier as a DAQ Accessory

Complete the following steps to run Measurement & Automation Explorer (MAX) and configure the SCC system:

1. Open MAX.

2. Right-click Devices and Interfaces and select Create New.

3. Under NI-DAQmx SCC Connector Block, select SC-2345. Click

Finish.

4. In the SCC Connector Block Configuration window, configure the SCC system as follows.

SC-2345/2350 Carrier User Manual 1-4 ni.com

Chapter 1 Setting up the SC-2345/2350 Carrier

Figure 1-1. SCC Connector Block Configuration Window

a. Specify the SCC Carrier Type. The location of the SCC sockets

changes depending on the SCC carrier type.

b. In the drop-down listbox under DAQ Device, select the

E/M Series DAQ device that is connected to the SC-2345 carrier.

c. Type the SCC Connector Block ID. The default value is

SCC1.

d. In the J21 drop-down listbox next to Power, select the correct

SC-2345 power configuration. Refer to Connecting Power to the

SC-2345/2350 Carrier section for information about power

configurations.

Chapter 1 Setting up the SC-2345/2350 Carrier

e. For each SCC module physically installed in the SC-2345 carrier,

add a corresponding entry in the SC-2345 Connector Block Configuration window. Click the drop-down listbox and select the correct module. If the module name does not appear in the list, either the module is not allowed in that location or you do not have NI-DAQ 7.4 or later. If you do not have the current version of NI-DAQ, download it from

5. Click OK after completing all SCC module entries.

6. Click OK to complete the configuration process and close MAX.

You have completed the steps to configure the SC-2345 carrier as an E/M Series DAQ device accessory.

Note Configuring the SCC system using MAX automatically sets the E/M Series DAQ

device analog input mode to NRSE. If you are configuring digital SCC modules, the configuration automatically sets individual digital lines to the appropriate direction, input or output.

ni.com/downloads.

Configuring the SC-2350 Carrier as a DAQ Accessory

Complete the following steps to run MAX and configure the SCC system:

1. Open MAX.

2. Right-click Devices and Interfaces and select Create New.

3. Under NI-DAQmx SCC Connector Block, select SC-2350.

SC-2345/2350 Carrier User Manual 1-6 ni.com

Chapter 1 Setting up the SC-2345/2350 Carrier

Figure 1-2. MAX Window with the SC-2350 Carrier Selected

4. Click Finish. The SC-2350 Configuration window opens.

Chapter 1 Setting up the SC-2345/2350 Carrier

5. To configure the SCC system, complete the following steps:

SC-2345/2350 Carrier User Manual 1-8 ni.com

Figure 1-3. SC-2350 Configuration Window

a. In the drop-down listbox located under DAQ Device, select the

E/M Series DAQ device that is connected to the SC-2350 carrier.

b. Type the SCC Connector Block ID. The default value is

SCC1.

c. In the J21 drop-down listbox next to Power, select the correct

SC-2350 carrier power configuration. Refer to the Connecting

Power to the SC-2345/2350 Carrier section for information about

power configurations.

Chapter 1 Setting up the SC-2345/2350 Carrier

d. For each SCC module physically installed in the SC-2350 carrier,

add a corresponding entry in the SC-2350 Configuration window. Click the drop-down listbox and select the correct module. If the module name does not appear in the list, either the module is not allowed in that location or you do not have NI-DAQ 7.4 or later. If you do not have the current version of NI-DAQ, download it from

ni.com/downloads.

e. MAX automatically scans the SCC modules you select for IEEE

P1451.4 sensors that are compatible with TEDS. If MAX finds a TEDS, MAX scans and maps a TEDS icon and information under the SCC module in MAX. For more information, refer to the TEDS section.

6. Click OK after completing all SCC module entries.

7. Click OK to complete the configuration process and close MAX.

You have completed the steps to configure the SC-2350 carrier as an E/M Series DAQ device accessory.

TEDS

Note Configuring the SCC system using MAX automatically sets the E/M Series DAQ

device analog input mode to NRSE.

This section describes TEDS.

IEEE P1451.4 specifies two classes of TEDS sensors:

• Class I—Uses the same two wires for both analog and digital signals (such as accelerometers and microphones).

• Class II—Separates analog and digital signals on different wires. In addition to the analog signal wires, uses two wires for digital signals. The SC-2350 carrier uses Class II TEDS.

On IEEE P1451.4 TEDS-compatible sensors, the manufacturer places an EEPROM on the sensor that stores a TEDS. The TEDS includes vendor and calibration information, sensor constants, and user-defined data. TEDS-compatible hardware, like the SC-2350 carrier, can read the TEDS data. Software can use TEDS data to streamline measurement setup.

Advantages and disadvantages to using TEDS-compatible sensors include the following:

• Smart, or hardware, TEDS—Provides easier connectivity. You can

plug it in and automatically set up your measurement system.

Chapter 1 Setting up the SC-2345/2350 Carrier

• Virtual, or software, TEDS (also part of the IEEE P1451.4 specification)—Obtains sensor information from a vendor Web site, instead of an EEPROM. The information is free and does not require a hardware upgrade. However, you must manually select the correct channel and sensor.

The following resources provide additional information about IEEE P1451.4 TEDS-compatible smart sensors:

• SCXI-1314T TEDS Bridge Sensor Terminal Block Installation Guide

• Refer to

–

rd2350

– rdsenr

– rdpnpy

– rdpnsn

– rdtntg

• ni.com/devzone

For information about how to configure channels and tasks with the SC-2350 carrier, refer to the SCC Quick Start Guide.

Importing TEDS Information

To import smart hardware TEDS sensor information into MAX, first install and configure the SCC modules. Refer to the SCC Quick Start Guide for more information about how to install and configure the SCC modules.

If your system has smart hardware TEDS, MAX automatically scans and maps the TEDS sensor information into MAX. If MAX finds a TEDS associated with the SCC module, the LED lights up as shown in Figure 1-4.

ni.com/info, and enter any of the following info codes:

If you later add SCC modules to your system that have TEDS-compatible sensors physically wired to them, click Scan for TEDS to import the TEDS sensor information into MAX and refresh the configuration tree.

SC-2345/2350 Carrier User Manual 1-10 ni.com

Chapter 1 Setting up the SC-2345/2350 Carrier

As shown in Figure 1-4, MAX scans and maps the TEDS information under the SC-2350 carrier.

Figure 1-4. TEDS Sensor Information Scanned and Mapped Into MAX

Chapter 1 Setting up the SC-2345/2350 Carrier

To view the TEDS sensor data sheet, click the TEDS listing under the SC-2350 in MAX. The TEDS sensor data sheet opens as shown in Figure 1-5.

Figure 1-5. TEDS Sensor Data Sheet

Verify that the TEDS data is correctly imported. Next, create an NI-DAQmx Global Channel or Task using the channel that has a TEDS sensor associated to it. Refer to

ni.com/info and enter rd2350, for more

information about how to create an NI-DAQmx Global Channel or Task for a TEDS sensor.

Importing Virtual TEDS Sensor Information

To import Virtual TEDS sensor information into MAX, first install and configure the SCC modules. Refer to the SCC Quick Start Guide, for more information about how to install and configure the SCC modules.

SC-2345/2350 Carrier User Manual 1-12 ni.com

Chapter 1 Setting up the SC-2345/2350 Carrier

To import Virtual TEDS sensor information into MAX, right-click the SCC module that you want a Virtual TEDS sensor associated to and select Configure TEDS.

The Configure TEDS window opens as shown in Figure 1-6.

1. Click Import Virtual TEDS.

Figure 1-6. Configure TEDS Window

Chapter 1 Setting up the SC-2345/2350 Carrier

2. The virtual TEDS directory opens as shown in Figure 1-7.

Figure 1-7. Virtual TEDS Directory

3. Press <Ctrl> and select the virtual TEDS file you want to import into MAX to associate with the SCC module.

4. Click OK.

MAX scans and maps the TEDS sensor information into MAX. The LED turns green.

5. To verify that the TEDS sensor information imported correctly, click the TEDS sensor icon in the configuration tree. The TEDS sensor data sheet opens as shown in Figure 1-5.

6. Next, you need to create an NI-DAQmx Global Channel or Task using the channel that has a TEDS sensor associated to it.

Note Refer to ni.com/info and enter rd2350, for more information about how to create

a NI-DAQmx Global Channel or Task for a TEDS sensor.

You have configured the SC-2350 carrier in MAX.

SC-2345/2350 Carrier User Manual 1-14 ni.com

Chapter 1 Setting up the SC-2345/2350 Carrier

Affixing the Quick Reference Label to the SC-2345 Carrier

Note Only the SC-2345 carrier is shipped with a Quick Reference Label.

Affix the Quick Reference Label to the inside cover of the SC-2345 carrier. You will refer to the Quick Reference Label when installing the SCC modules.

Connecting Power to the SC-2345/2350 Carrier

The SC-2345/2350 shielded carrier has one of the following power modules factory-installed in socket J21:

•SCC-PWR01

•SCC-PWR02

•SCC-PWR03

1 Negative or GND of External Supply 2J1 3 Positive of External +5 VDC Supply

Figure 1-8. SCC-PWR0X Parts Locator Diagram

4S1 5 Product Name

Each power module supplies digital power (+5 V) for the SC-2345/2350 carrier only and analog power (±15 V) to SCC modules in the SC-2345/2350 carrier. LEDs on the SC-2345/2350 indicate whether the +5 V and ±15 V power supplies are functioning properly. If the LEDs do not light when you connect power to the SC-2345/2350 carrier, refer to Appendix C, SCC Power Requirements and Solutions. Figure 1-9 shows the locations of sockets J24 and J25 on each of the three types of SC-2345 carrier enclosures and the SC-2350 carrier enclosure.

Chapter 1 Setting up the SC-2345/2350 Carrier

1 SC-2345 Carrier 2 SC-2345 Carrier with Configurable

Connectors, Side Cabled

3 SC-2350 Carrier with Configurable

Connectors, Side Cabled

4 SC-2345 Carrier with Configurable

Connectors, Rear Cabled

5 Connector J24 (Connects to 68-Pin

E/M Series DAQ Device)

6 Connector J25 (Connects to PS01 Power Supply

for Use with SCC-PWR02 Power Module)

SC-2345/2350 Carrier User Manual 1-16 ni.com

Figure 1-9. SC-2345/2350 Enclosures

+ 51 hidden pages

National Instruments SC-2345 Carrier, SC-2350 Carrier User Manual

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