National Instruments SCC Series Manuale utente

SCC Quick Start Guide

This document explains how to install and configure National Instruments

SCC modules with NI-DAQmx. This document assumes you have already

installed, configured, and tested the data acquisition (DAQ) device you will

connect to the SC-2345/2350 carrier. SCC modules work with NI M Series,

E Series, and B Series DAQ devices. If you have not done so, follow the

instructions in the DAQ Quick Start Guide included with the DAQ device

before continuing.

Contents

Conventions ............................................................................................ 2

Measurement System Overview ............................................................. 3

Step 1. Unpack the Carrier and Modules ................................................ 4

Step 2. Verify the Components ............................................................... 5

Step 3. Cable the SC-2345/2350 Carrier to the DAQ Device................. 6

Step 4. Set Up the SC-2345/SC-2350 Carrier......................................... 8

Procedure 1: Install the Connectors and Panelettes ......................... 8

Procedure 2: Apply I/O Panelette Labels ........................................ 9

Step 5. Connect the Signals..................................................................... 10

SC-2350: Connecting TEDS Sensors .............................................. 11

Connecting Digital Signals (Optional) ............................................ 12

SCC Module Installation Considerations................................................ 13

SC-2345 Carrier Considerations...................................................... 15

SC-2350 Carrier Considerations...................................................... 17

Step 6. Install the Modules...................................................................... 19

Step 7. Launch Measurement & Automation

Explorer (MAX)................................................................................... 22

Step 8. Configure the SC-2345/2350 ...................................................... 22

Step 9. Configure the SCC Modules....................................................... 24

SC-2350: Configure TEDS.............................................................. 25

Step 10. Configure Channels and Tasks ................................................. 26

Configure a Task.............................................................................. 26

Configure Global Channels in NI-DAQmx ..................................... 31

Step 11. Use Your Task in an Application.............................................. 32

Getting Started Developing an Application ............................................ 33

Using Examples ............................................................................... 33

Information about Measurement Applications and Devices............ 34

Worldwide Technical Support ......................................................... 35

SCC Quick Start Guide 2 ni.com

Conventions

The following conventions are used in this manual:

»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.

♦The ♦symbol indicates that the following text applies only to a specific

product, a specific operating system, or a specific software version.

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.

Wh 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 and information on hardware labels.

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

to a key concept.

monospace Text in this font is used for the proper names of disk drives, paths, and

directories.

monospace italic

Italic text in this font denotes text that is a placeholder for a word or value

that you must supply.

SCC-AIXX Refers to the SCC-AI01, SCC-AI02, SCC-AI03, SCC-AI04, SCC-AI05,

SCC-AI06, SCC-AI07, SCC-AI13, and SCC-AI14.

SCC-LPXX Refers to the SCC-LP01, SCC-LP02, SCC-LP03, and SCC-LP04.

SCC-TC0XRefers to the SCC-TC01 and SCC-TC02.

SCC-XX Refers to any SCC module.

SCC-SGXX Refers to the SCC-SG01, SCC-SG02, SCC-SG03, SCC-SG04,

and SCC-SG24.

©National Instruments Corporation 3 SCC Quick Start Guide

Measurement System Overview

Figure 1 depicts the measurement system overview, showing the path of

real-world physical phenomena to your measurement application.

Figure 1. Measurement System Overview

Sensors and transducers detect physical phenomena. Signal conditioning

components condition physical phenomena so that the measurement device

can receive the data. The computer receives the data through the

measurement device. Software controls the measurement system, telling

the measurement device when and from which channels to acquire or

generate data. Software also takes the raw data, analyzes it, and presents it

in a form you can understand, such as a graph, chart, or file for a report.

–

MAINFRAME

SCXI

Your Measurement Application

Application Software

LabVIEW, LabWindows/CVI, Measurement Studio, or other programming environments

Configuration

Measurement & Automation

Explorer (MAX)

Application Programming Interface (API)

NI-DAQmx, NI-SWITCH, or other API

Driver Engines

NI-DAQmx, NI-VISA

Data Acquisition and Modular Instrumentation

SCXI

Sensors and Transducers

Real-World Signals and Physical Phenomena

–

PCI PXI

PXI/SCXI Combination SCC

PCMCIA

Signal Conditioning

SC-2345

ONSTANDBY

SCC Quick Start Guide 4 ni.com

NI measurement devices and application software are packaged with

NI-DAQ driver softwareto program all the features of your

NI measurement device such as configuring, acquiring, and generating data

fromand sending datatoNImeasurement devices. Using NI-DAQsaves

you fromhaving to write these programs. Application software, such as

LabVIEW, LabWindows™/CVI™, Measurement Studio, and VI Logger,

sends commands to the driver, such as acquire and return a thermocouple

reading, and then displays and analyzes the data acquired.

You can use the NI-DAQ driver from NI application software or from any

programming environment that supports calling dynamic link libraries

(DLLs) through ANSI C interfaces. Regardless of the programming

environment, your DAQ application uses NI-DAQ, as shown in Figure 1.

If you have not installed, configured, and tested your DAQ device and

NI-DAQ software according to the instructions in the DAQ Quick Start

Guide, do so now.

Step 1. Unpack the Carrier and Modules

The SCC modules are shipped in an antistatic package to prevent

electrostatic damage (ESD) to the modules and their components.

Caution Never touch the exposed pins of connectors.

To avoid such damage, take the following precautions:

• Ground yourself using a grounding strap or by touching a grounded

object.

• Touch the antistatic package to a metal part of the computer chassis

before removing the module from the package.

Remove the module from the package and inspect the module for loose

components or any sign of damage. Notify NI if the module appears

damaged in any way. Do not install a damaged module into the carrier.

Store the SCC module in the antistatic package when not in use.

For safety and compliance information, refer to the device documentation

packaged with your device, on the NI-DAQ 7.xDevice Documentation CD

in the NI-DAQ software kit, or at ni.com/support. After you install the

Device Document Browser, device documents are accessible from

Start»Programs»National Instruments»NI-DAQ»Browse Device

Documentation.

©National Instruments Corporation 5 SCC Quick Start Guide

Step 2. Verify the Components

Make sure you have the following SCC system components.

In addition, you need the following items:

❑Hardware and documentation

– 68-pin DAQ device and documentation

– 68-pin cable

– SC-2345/2350 carrier and SC-2345/2350 Carrier User Manual

– One or more SCC modules and user guide

❑Software and documentation

– NI-DAQ 7.2 or later software and documentation

– One of the following software packages for development:

•LabVIEW

• LabWindows/CVI

• Visual C++

• Visual Basic

❑Other tools

– 1/8 in. flathead screwdriver

– Numbers 1 and 2 Phillips screwdrivers

– Wire insulation strippers

To install NI-DAQmx, refer to the DAQ Quick Start Guide. To install the

SC-2345/2350 carrier, refer to the SC-2345/2350 Carrier User Manual.

These documents are available for download at ni.com/manuals.

1 SCC Module

2 Power Module

3SCCCarrier

4 Shielded Cable

5DAQDevice

6 Personal Computer

456

SCC-

XXXX

68PositionE SeriesPinNumbers andNames

TerminalBlockDefinition

RowB RowC

Possible SCC Configurations

(ColorindicatesstripeonSCC)

RowA

P/N184114A-01

Reference Label

SC-2345 Quick

SCC Quick Start Guide 6 ni.com

Step 3. Cable 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/disconnecting any signal wires.

The DAQ device should already be installed in your computer. Refer to the

DAQ Quick Start Guide for installation instructions.

Connect the SC-2345/2350 carrier to the DAQ device with a 68-pin

shielded cable. If you are using an M Series DAQ device with two

connectors, connect the cable to connector 0 or 1. Use connector J24,

shown in Figure 2, on the SC-2345/2350 carrier.

Figure 2. Connector J24 Location

The chassis ground terminal on the SC-2345/2350 carrier and the

electromagnetic interference (EMI) gasket attached to the strain relief of

the SC-2345 connector block are for grounding a floating source (1 mA

maximum). Do not use these terminals as safety earth grounds. For more

information about the SC-2345/2350 carrier, refer to the SC-2345/2350

Carrier User Manual.

1 Connector J24 2 Power LEDs 3 SC-2345 Carrier

Digital I/O

or 1st Stage

of a Dual Stage

AI Configuration

Digital I/O

or 1st Stage

of a Dual Stage

AI Configuration

General Purpose

Counter/Timer

Channel 0

General Purpose

Counter/Timer

Channel 1

Analog Output

DAC 1

Analog Output

DAC 0

Single Stage AI

or 2nd Stage

of a Dual Stage

AI Configuration

Single Stage AI

or 2nd Stage

of a Dual Stage

AI Configuration

©National Instruments Corporation 7 SCC Quick Start Guide

Figure 3 shows the SC-2345 carrier with the signal wires connected.

Figures 4 and 5 show the two types of cabling on the SC-2345 with

configurable connectors.

Figure 3. SC-2345 Carrier Installation Diagram

Figure 4. Installing a Rear Cabled SC-2345 with Configurable Connectors

1 Screw Terminals

2 SCC Modules

3CoverScrews

4 68-Pin Shielded Cable

5 Quick Reference Label

6SCC-PWRXX

7 SCC Connector Block Socket

8 Screw Terminal Block

9 Top Strain-Relief Bar

10 Top Strain-Relief Screws

1 68-Pin Shielded Cable

2 Strain-Relief Panelette

3 SCC Modules

4 SCC Connector Block Socket

5 BNC Panelette

6 Power LEDs

7SCC-PWRXX

8 Screw Terminals

9 Screw Terminal Block

10 Top Cover

11 Cover Screws

68Position ESeriesPin Numbers andNames

Terminal BlockDefinition

RowB RowC

Possible SCC Configurations

(Color indicatesstripeonSCC)

RowA

P/N 184114A-01

Reference Label

SC-2345 Quick

SCC-

XXXX

SCC-

XXXX

SCC-

XXXX

CH1 CH2

711

SCC-

XXXX

SCC-

XXXX

SCC-

XXXX

SCC-

XXXX

SCC Quick Start Guide 8 ni.com

Figure 5. Installing a Side Cabled SC-2345 with Configurable Connectors

Step 4. Set Up the SC-2345/SC-2350 Carrier

The following section describes how to set up common to both the SC-2345

and the SC-2350 carriers.

Procedure 1: Install the Connectors and Panelettes

If you have selected an SC carrier with configurable connectors, install the

connector and interface panelettes. Some panelettes occupy more than one

panelette slot. Table 1 lists the panelette specifications.

1 Cover Screws

2 Top Cover

3 Screw Terminals

4 SCC Modules

5 Strain-Relief Panelette

6 Screw Terminal Block

7 68-Pin Shielded Cable

8 Power LEDs

9 SCC-PWRXX

10 BNC Panelette

11 SCC Connector Block Socket

Table 1. Panelette Options

Panelette Description

Connectors/Units

per Panelette Slot Width

Mini-thermocouple jack

J- or K-type 2 1

Uncompensated 2 1

Thermocouple jack

J- or K-type 1 1

Uncompensated 1 1

BNC BNC connector 2 1

SMB SMB connector 4 1

Banana jack Banana jack 2 1

CH1CH2

345

SCC-

XXXX

SCC-

XXXX

SCC-

XXXX

SCC-

XXXX

©National Instruments Corporation 9 SCC Quick Start Guide

You can install a blank panelette into any unused panelette opening.

Complete the following steps to install the I/O panelettes:

1. Remove the blank panel before installing any I/O panelettes on the rear

of the SC-2345/2350 with configurable connectors.

2. Place the lower edge of the I/O panelette in the groove at the bottom of

the enclosure opening.

3. Tilt the panelette top back into the enclosure.

4. Secure the panelette with either one, two, or three (depending on the

type of I/O panelette) M2.5 ×6 panhead screws that are included with

the panelette.

5. Connect the lead wires from the panelette to the screw terminals of the

SCC modules or to the 42-pin screw terminal block inside the

SC-2345/2350 carrier.

Procedure 2: Apply I/O Panelette Labels

The SC-2345 with Configurable Connectors and the SC-2350 are shipped

with a sheet of labels to apply to the I/O panelettes as shown in Figure 6.

The label sheet has both printed labels and blank labels you can customize.

LEMO (B-Series)

2-pin female 2 1

4-, 6-pin female 1 1

MIL-Spec 2-, 4-, 6-pin female 1 1

9-pin D-sub

Single (male) 1 2

Single (female) 1 2

Dual (male) 2 3

Dual (female) 2 3

Momentary switch On – off 2 1

Toggle switch (on – off – on) 2 1

Rocker switch (on – off – on) 1 1

LED Red, green, yellow, and orange LEDs 4 1

Potentiometer 1 turn, 10 1 1

Strain relief Small strain relief 1 2

Blank Filler panel — —

Table 1. Panelette Options (Continued)

Panelette Description

Connectors/Units

per Panelette Slot Width

SCC Quick Start Guide 10 ni.com

You can use two labels on single-width I/O panelettes and three or more

labels on wider panelettes.

Figure 6. Installing I/O Panelette Labels

Step 5. Connect the Signals

Caution Always refer to the specifications in your SCC-XX module user guide before

connecting signals. Exceeding specified module ratings can create a shock or fire hazard

and can damage any or all of the devices connected to the module.

Refer to ni.com/info and enter rdtntg in the info code field to confirm

signal names in the NI-DAQ C to NI-DAQmx Terminal Names Translation

Guide. Complete the following steps:

1. Remove power from the signal lines.

2. Strip 7 mm (0.25 in.) of insulation from the ends of the signal wires.

3. Insert the wires into the screw terminals. The SCC-XX module has a

fixed screw-terminal receptacle and a removable screw-terminal block,

as shown in Figure 7.

Figure 7. SCC-XX Two-Part Screw-Terminal System

4. Tighten the screws to 0.5 to 0.6 N · m (4.4 to 5.3 lb – in.) of torque.

5. Check if the strain-relief bar is installed as shown in Figures 3, 4,

and 5. If necessary, reinstall and tighten the strain-relief screws.

1 I/O Panelette 2 Labels

1 SCC Screw-Terminal Receptacle 2 Removable Screw-Terminal Block

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