NI SCC Series Manual de usuario

SCC Quick Start Guide

This document explains how to install and configure National Instruments Signal Conditioning

Components (SCC) modules with NI-DAQmx. SCC modules work with NI M Series, E Series, and

B Series DAQ devices. This document assumes you have already installed, configured, and tested your

NI application and driver software and the data acquisition (DAQ) device you will connect to the

SC-2345/2350 carrier. If you have not done so, refer to the DAQ Getting Started Guide included with

the DAQ device, available on the NI-DAQ CD, and from ni.com/manuals before continuing.

Throughout this document, abbreviations containing Xor XX are used to refer to families of related

device model numbers.

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-SGXX—refers to the SCC-SG01, SCC-SG02, SCC-SG03, SCC-SG04, and SCC-SG24.

SCC-TC0X—refers to the SCC-TC01 and SCC-TC02.

SCC-XX—refers to any SCC module.

Step 1. Unpacking the Carrier and Modules

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.

For safety and compliance information, refer to the device documentation packaged with the device,

at ni.com/manuals, or on NI-DAQmx CD that contains the device documentation.

The following symbols may be on the device:

This symbol 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 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 a

component may result in bodily injury.

SCC Quick Start Guide 2 ni.com

Step 2. Verifying the Components

Verify that 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 shielded 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 7.2or later software and documentation

– At least one of the following software packages and documentation:

•LabVIEW

• LabWindows™/CVI™

• LabVIEW SignalExpress

•MeasurementStudio

• Visual C++

• Visual Basic

❑Tools

– 1/8 in. flathead screwdriver

– Numbers 1 and 2 Phillips screwdrivers

– Wire insulation strippers

To install NI-DAQmx, refer to the DAQ Getting Started Guide. To install the SC-2345/2350 carrier, refer

to the SC-2345/2350 Carrier User Manual. All NI documents are available at ni.com/manuals.

1 SCC Module

2 Power Module

3 SCC Carrier

4 Shielded Cable

5 DAQ Device

6 Personal Computer

456

SCC-XXXX

68PositionESeriesPinNumbersandNames

TerminalBlock Definition

RowB RowC

Possible SCC Configurations

(Colorindicatesstripe onSCC)

RowA

P/N184114A-01

Reference Label

SC-2345 Quick

©National Instruments Corporation 3 SCC Quick Start Guide

Step 3. Cabling 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. Follow proper ESD

precautions to ensure you are grounded before installing the hardware.

Verify that the DAQ device is installed in the computer. If the DAQ device is not installed, refer to the

DAQ Getting Started 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 1, on the SC-2345/2350 carrier.

Figure 1. 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 used to ground 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

SCC Quick Start Guide 4 ni.com

Figure 2 shows the SC-2345 carrier with the signal wires connected. Figures 3 and 4 show the two types

of cabling found on the SC-2345 with configurable connectors.

Figure 2. SC-2345 Carrier Installation Diagram

Figure 3. SC-2345 Carrier with Configurable Connectors (Rear Cabled) Installation Diagram

1 Screw Terminals

2 SCC Modules

3 Cover Screws

468-Pin Shielded Cable

5 Quick Reference Label

6 SCC-PWRXX

7 SCC Connector Block Socket

8Screw Terminal Block

9 Top Strain-Relief Bar

10 Top Strain-Relief Screws

168-Pin Shielded Cable

2 Strain-Relief Panelette

3 SCC Modules

4 SCC Connector Block Socket

5 BNC Panelette

6 Power LEDs

7 SCC-PWRXX

8Screw Terminals

9 Screw Terminal Block

10 Top Cover

11 Cover Screws

68PositionESeriesPinNumbersandNames

erminalBlockDefinition

RowB RowC

Possible SCC Configurations

(Colorindicatesstripe onSCC)

RowA

P/N 184114A-01

Reference Label

SC-2345 Quick

SCC-XXXXSCC-XXXX

SCC-XXXX

CH1 CH2

711

SCC-XXXX

©National Instruments Corporation 5 SCC Quick Start Guide

Figure 4. SC-2345 Carrier with Configurable Connectors (Side Cabled) Installation Diagram

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

The following section describes how to set up features common to both the SC-2345 and the SC-2350

carriers.

Procedure 1: Installing 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

2TopCover

3 Screw Terminals

4 SCC Modules

5 Strain-Relief Panelette

6 Screw Terminal Block

768-Pin Shielded Cable

8Power LEDs

9SCC-PWRXX

10 BNC Panelette

11 SCC Connector Block Socket

Table 1. Panelette Specifications

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

LEMO (B-Series) 2-pin female 2 1

4-, 6-pin female 1 1

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

CH1CH2

345

SCC-XXXX

SCC Quick Start Guide 6 ni.com

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: Applying 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 5. The label sheet has both printed labels and blank labels you

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

panelettes.

Figure 5. Installing I/O Panelette Labels

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 — —

1 I/O Panelette 2 Labels

Table 1. Panelette Specifications (Continued)

Panelette Description

Connectors/Units

per Panelette Slot Width

©National Instruments Corporation 7 SCC Quick Start Guide

Step 5. Connecting the Signals

Caution Always refer to the specifications in the 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 the SCC module user guide to confirm signal names. 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 6.

Figure 6. 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. Make sure the strain-relief bar is installed as shown in Figures 3, 4, and 5. If necessary, reinstall

and tighten the strain-relief screws.

6. Close or replace the top cover.

7. Reinsert and tighten the cover screws to ensure proper shielding.

For complete signal-connection information, refer to the SCC-XX module user guide. For more

information about using the SC-2345, refer to the SC-2345/2350 Carrier User Manual.

For information about sensors, refer to ni.com/sensors or Common Sensors in the Measurement

Fundamentals section of the NI-DAQmx Help, which you can access from Start»All Programs»

National Instruments»NI-DAQ»NI-DAQmx Help. For information about IEEE 1451.4 TEDS smart

sensors, refer to ni.com/teds.

SC-2350: Connecting TEDS Sensors

If you are using an IEEE P1451.4 Transducer Electronic Data Sheet-compatible smart sensor, complete

the following steps to connect the TEDS DATA and RETURN signals. Refer to Figure 7 when

completing the following steps:

1. Connect the DATA signal to the DATA+ screw terminal on the TEDS screw terminal.

2. Connect the RETURN signal to the RETURN screw terminal on the TEDS screw terminal.

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

SCC Quick Start Guide 8 ni.com

Figure 7. TEDS DATA+ and RETURN Connections

Figure 8 shows the SC-2350 carrier with the SCC modules installed.

Figure 8. SC-2350 Carrier Installation Diagram

1DATA+2 2 DATA+ 10 3 RETURN 10 4 RETURN 2

1 Cover Screws

2 Screw Terminal Block

3 TEDS Screw Terminal

4 SCC Modules—Analog Output

5 SCC-PWRXX

6 D-SUB Panelette

7 SCC Modules—Analog Input

8Connector Block Sockets

9 TEDS Screw Terminal: RETURN Screw Terminal

10 TEDS Screw Terminal: DATA+ Screw Terminal

11 Strain-Relief Panelette

DATA+ 2/10

RETURN 2/10

J27

©National Instruments Corporation 9 SCC Quick Start Guide

Connecting Digital Signals (Optional)

The SC-2345/2350 has a 42-position, triple-row screw-terminal block for connecting to DAQ device

digital signals. Depending on the DAQ device you are using, you can connect the terminal block to

various digital signals. Refer to Figure 9 for signals of E, B, or M Series Connector 0. The SC-2345

Quick Reference Label identifies the location of each signal on the terminal rows A to C. The terminal

label numbers correspond to the pin number location of each signal on the 68-pin DAQ device

connector. Refer to the DAQ device documentation for more information about this connector.

Figure 9. Terminal Block I/O Connector Pin Assignments of E, B, and M Series Devices

Note Refer to the M Series User Manual for pin assignments of M Series devices.

♦SC-2345 connector block (The following does not apply to the SC-2345 with configurable connectors

or to the SC-2350.)

A metallized nylon knit EMI gasket is attached to the strain-relief bars of the SC-2345 connector block.

Using shielded cables to connect the signals allows you to ground the shielded signal cables. Stripping

the insulation away from the shield of the cables forms a chassis ground connection at the strain-relief

bar. To avoid adding noise to the signal, ground the cable shield only at one end. For complete signal

connection information, refer to the SCC-XX module user guide. For more information about using the

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

SCC Module Installation Considerations

SCC modules are required for connecting to the analog inputs or analog outputs of the DAQ device. You

do not need to use SCC modules to connect to the CTR and P0.Xsignals of the DAQ device, which are

accessible from the SC-2345 carrier. Refer to the SC-2345/2350 Carrier User Manual for more

information.

Each SCC module has a lengthwise color stripe label on the top, as illustrated in Figure 10, that indicates

the module type and function classification of the module and displays a corresponding icon.

P0.0

P0.2

P0.4

P0.6

+ 5 V

PFI 0/AI START TRIG

PFI 2/AI CONV CLK

PFI 4/CTR 1 GATE

PFI 6/AO START TRIG

PFI 8/CTR 0 SOURCE

PFI 12/CTR 0 OUT

PFI 14/FREQ OUT

Not Used

D GND

Not Used

P0.1

P0.3

P0.5

P0.7

PFI 11/AI HOLD COMP

PFI 1/AI REF TRIG

PFI 3/CTR 1 SOURCE

PFI 5/AO SAMPLE CLK

PFI 7/AI SAMP CLK

PFI 9/CTR 0 GATE

PFI 13/CTR 1 OUT

PFI 10/EXTSTROBE*

AI SENSE

Not Used

SCC Quick Start Guide 10 ni.com

Figure 10. SCC Module

For more information about SCC module types, accompanying icons, label color, and measurement

types, refer to Table 2.

1 SCC Screw-Terminal Receptacle 2 Label Color Stripe 3 SCC Module Name

Table 2. SCC Modules: Icon, Label Color, and Measurement Type

SCC Module Icon

Label

Color

Measurement

Type

SCC-ACC01 Blue Analog Input

SCC-AIXX Blue Analog Input

SCC-A10 Blue Analog Input

SCC-CI20 Blue Analog Input

SCC-FV01 Blue Analog Input

SCC-LPXX Blue Analog Input

SCC-XXXX

ACC

INPUT

÷10

IIN VOUT

0–100Hz

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