National Instruments DAQ NB-MIO-16X User Manual

User

Manual

NATIONAL

INSTRUMENTS®

The

Software

is

the

Instrument®

November 1993 Edition Part Number 320157-01

NB-MI0-16X

User Manual

Multifunction

1/0

Board

November 1993 Edition

Part

for

Macintosh NuBus Computers

Number

320157=01

All

Rights Reserved.

National Instruments Corporate Headquarters

6504 Bridge Point Parkway Austin,

TX

78730-5039

(512) 794-0100

Technical support fax: (800) 328-2203

(512) 794-5678

Branch Offices:

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45

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31

30, Italy 02/48301892,

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70,

Switzerland 056/20

26

00,

Finland

(03)

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51

(90)

51,

527

2321, France (1) 48

U.K.

0635

523545

14

24

24,

Norway

32-848400,

Limited

Warranty

The NB-MI0-16X is warranted against defects in materials and workmanship of

shipment,

replace equipment that proves

The media on which you receive National Instruments software are warranted not to fail instructions, due evidenced by receipts or other documentation. National Instruments will, at its option, repair or replace software media that the warranty period. National Instruments does not warrant that the operation of the software shall be uninterrupted or error

A Return Material Authorization outside of the package before shipping costs

National Instruments believes that reviewed for technical accuracy. reserves the right edition. The reader should consult National Instruments Instruments be liable for

EXCEPT AND

SPECIFICALLY PURPOSE. OF

NATIONAL NATIONAL USE

OF THEREOF. whether in contract or tort, including negligence. one year after the cause of action accrues. National Instruments shall not be liable for to

causes beyond its reasonable control. The warranty provided herein does not cover damages, defects, malfunctions, or service failures caused by owner's failure or maintenance instructions; owner's modification of the product; owner's abuse, misuse, or negligent acts; and power failure or surges, fire, flood, accident, actions of third parties, or other events outside reasonable control.

as

evidenced by receipts or other documentation. National Instruments will,

to

be defective during

to

defects in materials and workmanship, for a period of 90

do

not execute programming instructions

free.

(RMA)

any

of

returning

to

AS

SPECIFIED

CUSTOMER'S

INSTRUMENTS

PRODUCTS,

This limitation of the liability of National Instruments will apply regardless of the

to

the owner parts which are covered by warranty.

make changes

any

damages arising out of or related

HEREIN,

DISCLAIMS

RIGHT

SHALL

WILL

OR

INCIDENT

In

NATIONAL

TO

number must be obtained

equipment

the

the event that technical or typographical errors exist, National Instruments

to

subsequent editions of this document without prior notice

ANY

RECOVER

NOT

AL

will

information

WARRANTY

BE

LlMITED

BE

LlABLE

OR

CONSEQUENTIAL

the

warranty period. This warranty includes parts and labor.

if

National Instruments receives notice of such defects during

be

accepted for warranty

in

this manual

if

errors are suspected.

INSTRUMENTS

OF

MERCHANT

DAMAGES

FOR

Any

CAUSED

TO

THE

AMOUNT

DAMAGES

action against National Instruments must be brought within

to

follow the National Instruments installation, operation,

from

is

accurate. The document has been carefully

to

this document or

MAKES

DAMAGES,

NOW ABILITY BY

RESULTING

for

a period of one year

at

its option, repair or

to

execute programming

days

from date of shipment,

the factory and clearly marked on the

work.

National Instruments will pay

In

no

event shall National

the

information contained in

ARRANTIES,

OR

FITNESS

FAULT

THERETOFORE

EVEN

OR

FROM

IF

EXPRESS

FOR

NEGLlGENCE

PAID

BY

LOSS

OF

ADVISED

OF

form

any

delay in performance

from

as

to

holders of this

OR

IMPLlED,

AP

ARTICULAR

ON

THE

CUSTOMER.

DATA,

PRoms.

THE

POSSIBILITY

of

action,

the date

the

it

PART

due

Copyright

Under

the

copyright laws, this publication

mechanical, including photocopying, recording, storing

the

in part, without

prior written consent of National Instruments Corporation.

may

not be reproduced or transmitted

in

an

information retrieval system, or translating, in whole or

Trademarks

Lab

VIEW®,

Product and company names listed are trademarks or trade names

NI-DAQ®.

and

RTSI®

are trademarks of National Instruments Corporation.

in

any

form,

of

their respective companies.

electronic or

Warning Regarding Medical and Clinical Use

of

National Instruments Products

National Instruments products are

for

use

suitable medical part of

the medical traditional medical safeguards, equipment, and procedures that are appropriate in the particular situation serious injury or death should always continue National Instruments products are equipment used

in treatment and diagnosis of

or

clinical treatment can create a potential

user or application designer.

or

clinical treatment must

to

monitor or safeguard human health

not

designed

Any

be

performed

NOT

intended to be a substitute for

with

components

humans.

use

to be

Applications of National Instruments products involving

for

accidental injury caused

or application of National Instruments products

by

properly trained

used

and

testing intended

and

qualified medical personnel,

when

National Instruments products are being

any

form

safety

in

medical

or

to

ensure

by

product failure, or

of established process, procedure,

clinical treatment

a level of reliability

by

for

or involving

and

errors

all

to

prevent

used.

on

the

or

Preface

This manual describes the mechanical and electrical aspects information concerning its operation and programming. The NB-MI0-16X is a high-performance multifunction analog, digital, and timing input/output

NB-MI0-16X

The two 12-bit digital-to-analog converters (DACs) with voltage outputs, eight lines

I/0,

digital required, you can use the AMUX-64T multiplexer board.

and three 16-bit counter/timer channels for timing

contains a 16-bit analog-to-digital converter (ADC) with up to

of

the NB-MI0-16X and contains

(I/0)

board for Macintosh NuBus computers.

16

analog inputs,

of

TIL-compatible

I/0.

If

additional analog inputs are

Organization of This Manual

TheNB-MI0-16X

" Chapter

kit, the optional software, and the optional equipment; and explains how to unpack the NB-MI0-16X.

" Chapter 2, Configuration and Installation, explains board configuration, installation

NB-MI0-16X and cable wiring.

" Chapter 3, Theory

explains the operation

1,

User Manual is organized as follows:

Introduction, describes the NB-MI0-16X; lists the contents

in the Macintosh NuBus computer, signal connections to the NB-MI0-16X,

of

Operation, contains a functional overview

of

each functional unit making up the NB-MI0-16X.

of

your NB-MI0-16X

the NB-MI0-16X and

of

the

" Chapter 4, Programming, describes in detail the address and function

NB-MI0-16X

NB-MI0-16X.

the

" Chapter 5, Calibration Procedures, discusses the calibration procedures for the NB-MI0-16X

analog input and analog output circuitry.

" Appendix A, Specifications, lists the specifications

" Appendix

I/0

connector.

" Appendix C,

AmZ8073A System Controller (Advanced Micro Devices, Inc.) integrated circuit. This circuit is used on the NB-MI0-16X.

" Appendix D, Customer Communication, contains forms for you

communication with National Instruments concerning our products.

" The Index contains an alphabetical list

the page where each one can

registers. This chapter also includes important information about programming

of

the NB-MI0-16X.

B,

I/0

Connector, contains the pinout and signal names for the NB-MI0-16X 50-pin

AMD

Data Sheet, contains the manufacturer data sheet for the Am9513Af

of

key terms and topics used in this manual, including

be found.

of

each

of

the

to

complete to facilitate

©

National

Instruments

Corporation

V

NB-MI0-16X

User

Manual

Preface

Conventions Used

The

following conventions are used in this manual:

DIFF

DMAboard

italic

Macintosh

NI-DAQ

NRSE

RSE

DIFF refers to differential input configuration.

DMA unless otherwise noted.

Italic text denotes emphasis, a cross reference, concept.

Macintosh refers to unless otherwise noted.

NI-DAQ is used throughout this manual to refer to the NI-DAQ software for Macintosh unless otherwise noted.

NRSE

RSE refers to referenced single-ended input configuration.

in

This Manual

board refers to the NB-DMA-8-G board

refers to non-referenced single-ended input configuration.

Abbreviations

or

the NB-DMA2800 board

or

an introduction

to a key

all Macintosh II and Macintosh Quadra computers

The

following metric system prefixes are used with abbreviations for units

manual:

Prefix

pn- nano-

µ-

m-

k-

M-

G-

The

following abbreviations are used in this manual:

A amperes C

dB

0

F

ft

hex hexadecimal

Hz

in.

Celsius decibels degrees farads feet

hertz inches

Meaning

pico-

micro-

milli-

kilomegagiga-

Value

10-12 10-9

lQ-6

10-3 103 106

109

of

measure

in

this

NB-MI0-16X

User

Manual

vi

©

National

Instruments

Corporation

Preface

Abbreviations

m

M

.Q

(continued)

%

ppm rms

sec

V

Vrms

Acronyms

The following acronyms

AC

ND

AOC

CMOS

DIA

DAC

DMA

EPROM

FIFO

I/0

LSB

NMR

ROM RTSI

TC

TIL

VDC

VI

meters megabytes of memory

ohms percent parts per million

mean

root

square seconds volts volts root mean square

are

used in this

manual:

alternating current analog-to-digital

AID

converter

complementary metallic oxide semiconductor

digital-to-analog

DI A converter

direct

memory

access electrical programmable read-only memory first-in-first-out input/output least significant bit nonmaskable interrupt request read-only memory Real-Time

System

Integration terminal count transistor-transistor logic volts direct current virtual instrument

Related Documentation

The following documents contain information that you

• The Macintosh II or Quadra Owner's Manual, Getting Started manual, or Setting

if

you

plan

to

Consult the following manual

NB-MI0-16X:

• The Am9513A/Am9513 System Timing Controller technical manual

©

National

Instruments

Corporation

program the Am9513A Counter!fimer

vii

may

find helpful

as

you

NB-MJ0-16X

read

this manual:

Up

manual

used

on

the

User

Manual

Preface

Consult the following National Instruments manuals

if

you plan to program

DMA

operations with

this board:

0

The

NB-DMA-8-G User Manual (part number 320097-01)

0

The

NB-DMA2800 User Manual (part number 320240-01)

Customer Communication

National Instruments wants to receive your comments on our products and manuals. interested in the applications you develop with our products, and we want to help problems with them. To make it easy for you to contact us,

this

manual contains comment and

configuration forms for you to complete. These forms are in Appendix D, Customer

Communication,

at the end

of

this

manual.

if

you have

We

are

NB-MI0-16X

User

Manual

viii

Instruments

Corporation

Figure 2-1. Figure 2-2. Figure 2-3. Figure 2-4. Figure 2-5. Figure 2-6. Figure 2-7. Figure 2-8. Figure 2-9. Figure 2-10. Figure 2-11. Figure 2-12. Figure 2-13. Figure 2-14. Figure 2-15. Figure 2-16. Figure 2-17. Figure 2-18. Figure 2-19. Figure 2-20. Figure 2-21. Figure 2-22. Figure 2-23. Figure 2-24. Figure 2-25. Figure 2-26. Figure 2-27. Figure 2-28.

..................................................................................................................................

Index-I

Figures

NB-MI0-16X Interface Board ........................................................................... 1-2

Parts Locator Diagram ....................................................................................... 2-3

DIFF Input Configuration (Factory Setting) ...................................................... 2-5

RSE Input Configuration ................................................................................... 2-6

NRSE Input Configuration ................................................................................. 2-6

5 V Input Configuration ..................................................................................... 2-7

.2-

10 V Input Configuration (Factory Setting) ......................................................

External Reference Configuration ..................................................................... 2-9

Internal Reference Configuration (Factory Setting) .......................................... 2-10

Reference Choice Configurations ...................................................................... 2-10

Bipolar Output Configuration (Factory Setting) ................................................

Straight Binary Mode .........................................................................................

Two's Complement Mode (Factory Setting) ...................................................... 2-12

Unipolar Output Configuration .......................................................................... 2-12

NB-MI0-16X

NB-MI0-16X Instrumentation Amplifier .......................................................... 2-15

Differential Input Connections for Grounded Signal Sources ........................... 2-18

Differential Input Connections for Floating Sources ......................................... 2-19

Single-Ended Input Connections for Floating Signal Sources ........................... 2-20

Single-Ended Input Connections for Grounded Signal Sources ........................ 2-21

Analog Output Connections ............................................................................... 2-23

Digital

EXTSTROBE* Signal Timing ........................................................................... 2-26

EXTCONV* Signal Timing ............................................................................... 2-27

STARTTRIG* Signal Timing ............................................................................ 2-27

STOPTRIG Signal Timing ................................................................................. 2-28

Event-Counting Application with External Switch Gating ................................ 2-29

Frequency Measurement Application ................................................................ 2-30

General-Purpose Timing Signals ....................................................................... 2-31

I/0

Connector ............................................................................. 2-14

Connections ..................................................................................... 2-25

7

2-11 2-11

Figure 3-1. Figure 3-2. Figure 3-3. Figure 3-4. Figure 3-5. Figure 3-6.

Instruments

NB-MI0-16X Block Diagram ........................................................................... 3-1

NuBus Interface Circuitry Block Diagram ........................................................ 3-2

Analog Input and Data Acquisition Circuitry Block Diagram ......................... .3-4

Analog Output Circuitry Block Diagram ........................................................... 3-8

I/0

Digital Timing

Circuitry Block Diagram ................................................................ .3-10

I/0

Circuitry Block Diagram ................................................................ .3-11

Corporation

xiii NB-MI0-16X

User

Manual

Contents

Figure 3-7. Figure 3-8.

Figure 4-1.

Figure 5-1.

Figure B-1.

Table

2-1. Table 2-2. Table

Table

2-3.

2-4.

Table 4-1. Table Table Table Table Table Table Table Table

4-2. 4-3. 4-4. 4-5. 4-6. 4-7. 4-8. 4-9.

Counter Block Diagram ..................................................................................... 3-12

RTSI Bus Interface Circuitry Block Diagram .................................................... 3-14

RTSI Switch Control Pattern ............................................................................. 4-75

Calibration Trimpot Location Diagram ............................................................. 5-2

NB-MI0-16X

I/0

Connector ............................................................................. B-1

Tables

Jumper Settings .................................................................................................. 2-2

Input Configurations Available for the NB-MI0-16X ...................................... 2-4

Actual Range and Measurement Precision Versus Input Range

Selection and Gain ............................................................................................. 2-8

Recommended Input Configurations for Ground-Referenced

and Floating Signal Sources ............................................................................... 2-17

Macintosh Slot Addresses .................................................................................. 4-2

NB-MI0-16X Register Map .............................................................................. 4-3

Straight Binary Mode Two's Complement Mode

Single-Channel Data Acquisition Rates ............................................................ .4-49

Multiple-Channel Data Acquisition Rates ........................................................ .4-67

Analog Output Voltage Versus Digital Code (Unipolar Mode) ....................... .4-71

Analog Output Voltage Versus Digital Code (Bipolar Mode) ......................... .4-72

RTSI Switch Signal Connections ...................................................................... .4-74

ND

Conversion Values ................................................ .4-43

ND

Conversion Values .......................................... .4-43

NB-MI0-16X

User

Manual

xiv

Instruments

Corporation

Chapter 1

Introduction

This chapter describes the

software, and

The

NB-MI0-16X

Macintosh

•

Fast

Programmable

42

Guaranteed rates up to 55 ksamples/sec

Internal or external

"

Two

Unipolar and bipolar voltage output available

Onboard reference voltages

the

optional equipment; and explains

is a high-perfonnance multifunction analog, digital and timing

NuBus

16-bit

16 single-ended or 8 differential channels (expandable with AMUX-64T multiplexer board)

µsec converter

16-word

double-buffered multiplying 12-bit

computers.

ADC

FIFO

gains

ND

NB-MI0-16X;

The

NB-MI0-16X

of

1, 10,

or

18 µsec converter

buffer to obtain the highest possible data acquisition rate

ND

timing

of

lists the contents

has

100,500,

5 V and 10 V

or

DACs

how

to unpack the

the

following features:

1, 2, 4, 8

of

your

NB-MI0-16X

NB-MI0-16X.

kit, the optional

J/0

board for

Onboard timer for wavefonn generation

• Eight digital

• Three independent 16-bit counter/timers for frequency counting, event counting,

output applications

" Timer-generated interrupts

• High-perfonnance

Triggers for system-level timing

DMA

©

National

Instruments

J/0

lines,

each

able to sink up to

RTSI

bus interface

operation over a RTSI bus with a

Corporation

24

mA

DMA

1-/

current

board

NB-M/0-16X

and

pulse

User

Manual

Introduction

Chapter

1

Figure

1-1

shows the

NB-MI0-16X.

Figure 1-1. NB-MI0-16X Interface Board

The

NB-MI0-16X, with its multifunction analog, digital, and timing

automation

of

machine and process control, level monitoring and control, instrumentation,

electronic test, and many other functions. The multichannel analog input can

I/0,

can be used for

be used for signal

and transient analysis, data logging, and chromatography. The two analog output channels can be used for machine and process control, analog function generation, 12-bit resolution voltage source,

I/0

and programmable signal attenuation. The eight TTL-compatible digital machine and process control, intermachine communication, and relay switching control. The

16-bit counter/timers can be used for pulse and clock generation, timed control

lines can be used for

three

of

laboratory equipment, and frequency, event, and pulse-width measurement. With all these functions on one board, laboratory processes can be automatically monitored and controlled.

If

additional analog inputs are required, you can use the AMUX-64T multiplexer board. This four-to-one multiplexer can process

64

single-ended inputs.

Up

to

four AMUX-64T boards can be cascaded to obtain 256

single-ended inputs.

The

NB-MI0-16X has an interface to the National Instruments RTSI bus. This bus sends timing

signals between National Instruments NB Series boards. The NB-MI0-16X can send signals from the onboard counter/timer to another board, or another board can control single and multiple

AID conversions on the NB-MI0-16X.

The

NB-MI0-16X is available in two conversion speeds and two gain ranges, for a total

of

four

different versions:

• NB-MI0-16XL-18

• NB-MI0-16XL-42

• NB-MI0-16XII-18

• NB-MI0-16XII-42

NB-MI0-16X

User

Manual

1-2

Corporation

Chapter

The analog input signals. The NB-MI0-16XH and 8 for high-level analog input signals. The

µsec

capable

I

NB-MI0-16XL

conversion rate, which is about 24 kbytes/sec. The NB-MI0-16X(L/H)-18 has an ADC

of

an 18

has software-programmable gain settings

has software programmable gain settings

NB-MI0-16X(LJH)-42 has an ADC capable

µsec

conversion rate, which is about 55 kbytes/sec.

of

1, 10, 100, and 500 for low-level

Introduction

of

1, 2, 4,

of

a 42

Detailed specifications for the NB-MI0-16X are included

What

Each version

follows.

Kit

Your

of

Name

Kit Should Contain

the NB-MI0-16X board has a different part number and kit part number, listed as

Kit

Part

Number

in

Appendix A, Specifications.

Kit

Component

Board

Part

Number

NB-MI0-16XL-18

NB-MI0-16XL-42 776259-02

NB-MI0-16XH-18

NB-MI0-16XH-42

The board part number is printed on your board along the top edge on the component side. You can identify which version the preceding table.

776259-01 NB-MI0-16XL-18 board 180675-01

NB-MI0-16XL-42 board 180675-02

776259-11

776259-12 NB-MI0-16XH-42 board

of

the NB-MI0-16X board you have by looking up the part number in

NB-MI0-16XH-18 board

180675-11

180675-12

In addition to the board, each version

Kit

NB-MI0-16X

NI-DAQ software for Macintosh, with manuals 776181-01

NI-DAQfor Macintosh Software Reference Manual 320103-01

If

your kit is missing any

Instruments.

Your

NB-MI0-16X

of

functions that can be called from your application programming environment These functions include routines for analog input conversion), analog output (D/A conversion), waveform generation, digital

SCXI, RTSI, and self-calibration. NI-DAQ maintains a consistent software interface among its different versions so you can switch between platforms with minimal modifications to your code. NI-DAQ comes with language interfaces for MPW C, QuickBASIC. Any language that uses Device Manager Toolbox calls can access NI-DAQ.

User Manual 320157-01

of

the components or

is shipped with the NI-DAQ software for Macintosh. NI-DAQ has a library

of

the NB-MI0-16X kit contains the following components.

Component

if

you received the wrong version, contact National

(ND

conversion), buffered data acquisition (high-speed

THINK

C, Pascal, and Microsoft

Part

I/0,

Number

ND

counter/timer,

©

NaJi.onal

lnstrwnents

CorporaJion

1-3

NB-MI0-16X

User

Manual

Introduction

Chapter

Optional Software

This manual contains complete instructions for directly programming the NB-MI0-16X.

to

Normally, however, you should not need manual because the NI-DAQ software package for controlling the NB-MI0-16X is included with the board. Using NI-DAQ is quicker and easier than and programming described in Chapter 4,

read the low-level programming details in the user

as

flexible as using the low-level

Programming.

1

The NB-MI0-16X can also

be

used with Lab VIEW (part number 776141-01), a software system

that features interactive graphics, a state-of-the-art user interface, and a powerful graphical

programming language. The Lab VIEW Data Acquisition VI Library, a series of VIs

for

using Lab VIEW with the NB-MI0-16X and other National Instruments boards, is included with Lab

VIEW.

The

Lab

VIEW Data Acquisition VI Library

is

functionally equivalent

to

the

NI-DAQ

software for Macintosh.

Optional

NB-DMA2800 board

NB-DMA-8-G board

CB-50

NB

I/0 with 0.5-m with 1.0-m

Series R TSI bus cables for

Equipment

connector block

type

NB

1 cable

type

NB

1 cable

Equipment

(50

screw terminals)

Part

Number

776305-01

776161-01

776164-01 776164-02

2 boards 776188-02 3 boards 4 boards 5 boards

776188-03 776188-04 776188-05

SCXI signal conditioning modules

SCXI-1100 32-channel differential multiplexer/ amplifier SCXI-1120 8-channel isolated analog input SCXI-1121 4-channel isolated transducer amplifier with excitation 776572-21 SCXI-1140 8-channel simultaneously sampling differential amplifier SCXI-1180 feedthrough panel SCXI-1181 breadboard

AMUX-64T analog multiplexer board

with 0.2-m ribbon cable with 0.5-m ribbon cable with 1.0-m ribbon cable with 2.0-m ribbon cable

NB-MI0-16X

User

Manual

1-4

©

National

Instruments

776572-00 776572-20

776572-40 776572-80 776572-81

776366-02 776366-05 776366-10 776366-20

(continues)

Corporation

Chapter

1

Introduction

Equipment

SC-2050 cable adapter board for signal conditioning with 50-conductor cable

0.5m

1.0 m

SC-2060 optically isolated digital input board with 26-conductor cable

0.2m

0.4m

SC-2061 optically isolated digital output board with 26-conductor cable

0.2m

0.4m

SC-2062 electromechanical relay digital control board with 26-conductor cable

0.2m

0.4m

SC-2070 general-purpose termination breadboard with 50-conductor cable

0.5m

1.0 m

BNC-2080 BNC adapter board with 50-conductor cable

0.5m

1.0 m

Part Number

776335-00 776335-10

776336-00 776336-10

776336-01 776336-11

776336-02 776336-12

776358-00 776358-10

776579-05 776579-10

Digital signal conditioning modules

SSR Series mounting rack and 0.4-m cable

8-channel backplane with SC-205X cable

5B

Series signal conditioning backplane with 1.0-m cable

776290-18

776291-01

Unpacking

Your NB-MI0-16X is shipped in an antistatic plastic bag to prevent electrostatic damage

on

board. Several components such damage in handling the board, take the following precautions:

• Touch the plastic bag

• Remove the board from the bag and inspect the board for loose components or any other sign of

damage. Notify National Instruments

install a damaged board into your computer.

the board may be damaged by electrostatic discharge. To avoid

to

a metal part

of

your computer before removing the board from the bag.

if

the board appears damaged in any way. Do

to

the

not

1-5

NB-MI0-16X

User

Manual

Chapter

2

Configuration

This chapter explains board configuration, installation NuBus computer, signal connections to the NB-MI0-16X,

and

Installation

of

the NB-MI0-16X in the Macintosh

and

cable wiring.

Board Configuration

The NB-MI0-16X has 10 jumpers that determine the analog input and analog output configurations Jumpers W3, W5, and W9, and WlO configure the analog output circuitry.

of

the board. The jumpers are shown in the parts locator diagram in Figure 2-1.

W8

configure the analog input circuitry. Jumpers

Wl,

W2, W4, W6, W7,

Jumper Settings

The NB-MI0-16X is shipped from the factory with the following configuration:

• Differential analog input

•

10

V input range

• ±10 V output range with internal 10 V reference selected

(8

channels)

" Two's complement

Table 2-1 lists all the available jumper configurations for the NB-MI0-16X with the factory settings noted.

DAC

input mode

©

National

Instruments Corporation

2-1

NB-MI0-16X

User

Manual

Configuration

and

Installation

Table 2-1. Jumper Settings

Chapter

2

Output

CHO Internal

Reference

Output

CHl

Reference

Input

Output

Range

Mode

CHO Unipolar

Polarity

Configuration

10

V (factory setting) Internal 5 V External

Internal

10

V (factory setting) Internal 5 V External

0 to 10 V or -10 to +

-5

0 to 5V or

to

+5

10

V (factory setting)

V

Differential (DIFF) (factory setting) Non-referenced single-ended (NRSE) Ground-referenced single-ended (RSE)

Bipolar (factory setting)

W2: W2: W2:

Wl: WI: Wl:

WS: WS:

W3: W3: W3:

W6: W6:

Jumper

B-C B-C

Settings

W4: W4:

B-C A-B

A-B

B-C B-C

W4: W4:

B-C A-B

A-B

B-C A-B

A-C, B-D, E-F WS: A-B A-B, C-E, G-H WS: B-C A-B, C-D, G-H WS: B-C

B-C A-B

Output Polarity

DACO Mode

DACI Mode

CHI

Input

Unipolar Bipolar (factory setting)

Straight binary mode Two's complement mode (factory setting)

W7: W7:

W9: W9:

WIO: WIO:

B-C A-B

A-B B-C

NB-MI0-16X

User

Manual

2-2

Corporation

@

~

c3·

is

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~

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Configuration

and

Installation

Chapter2

Analog

You can select different analog input configurations Table 2-1. The following paragraphs describe each configuration illustrations throughout

Input

Configuration

this chapter, the black bars show where to place jumpers.

Input Mode

The

NB-MI0-16X referenced single-ended (NRSE) input, configurations use 16 channels. The configurations

Configuration

offers three different input modes-referenced single-ended (RSE) input, non-

and

differential (DIFF)

DIFF

input configuration uses 8 channels. These

are

described

Table 2-2. Input Configurations Available for the

DIFF

RSE

in

Table 2-2.

Differential configuration. Provides

the instrumentation amplifier tied to the multiplexer output

of

Channels 8 through 15.

Referenced Single-Ended configuration. Provides 16 single-ended inputs with the negative (-) input of

the instrumentation amplifier referenced to analog

ground.

8 differential inputs with the negative(-) input

by

using the jumper settings shown in

of

the analog input categories in detail.

input

The single-ended input

NB-MI0-16X

Description

of

In

the

NRSE

While reading the following paragraphs, you may find

Connections later

configurations.

DIFF Input

DIFF input means that each input signal has its own reference, and the difference between each

· signal and its reference is measured. The signal and its reference channel. With signals. You select the DIFF input configuration

W3:

in

this chapter, which contains diagrams showing the signal paths for the three

(8

Channels, Factory Setting)

this input configuration, the

A - C Jumper

together inside the board.)

B - D

AI

Non-Referenced Single-Ended configuration. Provides 16 single-ended inputs with the negative(-) input of

the instrumentation amplifier tied to AISENSE and not

connected

is placed

SENSE is tied

to

ground.

it

helpful to refer to

are

NB-MI0-16X

by

in

standby position. (A and C are always connected

to

the instrumentation amplifier signal ground.

can monitor eight different analog input

setting jumpers W3 and W5 as follows:

Analog

each assigned an input

Input Signal

NB-MJ0-16X.

User

Manual

24

©

National

I nstrwnents

Corporation

Chapter

2

Configuratwn

andlnstallatwn

E-F

W5:

- B Multiplexer is configured to control eight input channels.

A

This configuration

Channels O through 7

instrumentation amplifier. Channels

(-) input

is

shown in Figure 2-2.

of

the instrumentation amplifier.

are

tied to the positive ( +) input

8 through

W3

H

F

"

..

G

E

15

-

W5

..

-

A

B C

Figure 2-2. DIFF Input Configuration (Factory Setting)

I

D

B

C

A

of

the

are

tied to the negative

Considerations for using the this chapter. Figure 2-17 shows a schematic diagram

RSE Input (16 Channels)

RSE input means that all input signals the analog input ground

is

amplifier sources. See NB-MI0-16X configuration by setting jumpers

tied to analog ground. This configuration is useful when measuring floating signal

Types

W3:

of

can monitor 16 different analog input signals.

A-B

C-D

G-H

W5:

B-C

This configuration

is

shown

DIFF

configuration are discussed under Signal Connections later in

are

referenced to a common ground point that is also tied to

of

the NB-MI0-16X board.

Signal

Sources

AI

SENSE is tied

The negative instrumentation amplifier signal ground.

Multiplexer outputs

instrumentation amplifier.

Multiplexer control is configured for 16 input channels.

in

Figure 2-3.

W3

later

in

and

W5

to

(-) input

this chapter.

as

follows:

the negative (-) input

of

the instrumentation amplifier is tied to the

are

tied together into the positive ( +) input

of

this configuration.

The

negative(-) input

With

this input configuration, the

You

select the RSE input

of

the differential input

of

the instrumentation amplifier.

of

the

©

National

Instruments

Corporation

2-5

NB-MI0-16X

User

Manual

Co,ifiguration

and

Installation

Chapter2

W3

H

G

-

•

-

•

E

C

A

I .

ws

1!1111111111111

F

D

B

-

B

A

Figure 2-3. RSE Input Configuration

Considerations for using the this chapter. Figure 2-18 shows a schematic diagram

NRSE

NRSE input means that all input signals are referenced to the same common mode voltage but that this common mode voltage NB-MI0-16X board. instrumentation amplifier. sources. See NB-MI0-16X can measure 16 different analog input signals having the same ground reference. You select the NRSE input configuration by setting jumpers W3 and W5 as follows:

Input

Types

(16 Channels)

of

RSE

is allowed to float with respect to the analog ground

Tiris common mode voltage is subsequently subtracted out by the input

Tiris· configuration is useful when measuring ground-referenced signal

Signal Sources later in this chapter. With this input configuration, the

C

configuration are discussed under Signal Connections later

of

this configuration.

of

the

in

W3:

A-B

C-E

G-H

W5:

B-C

Tiris configuration is shown

AI SENSE is tied to the negative (-) input

Jumper is placed in standby position. (C and E are always connected together inside the board.)

Multiplexer outputs are tied together into the positive ( instrumentation amplifier.

Multiplexer control is configured for 16 input channels.

in

Figure 2-4.

I .

A B

W5

-

C

H

F

D

B

-

•

"

-

W3

of

the instrumentation amplifier.

+) input

G

E

C

A

of

the

NB-MI0-16X

User

Manual

Figure 2-4. NRSE Input Configuration

2-6

©

National

Instruments

Corporation

Chapter2

Considerations for using the NRSE configuration are discussed under Signal Connections later in

of

this chapter. Figure 2-19 shows a schematic diagram

this configuration.

Configuration

and

Installation

Input

The input range by setting jumper Chapter 4,

If

you are using NI-DAQ, the BP*/UP bit is automatically set to the correct value when you

specify the input range and polarity in the AI_ Config call.

Figures 2-5 and 2-6 show the jumper positions for the 5 V + 10 V or -10 V to + 10 V) input range configurations, respectively.

Polarity

NB-MI0-16X

Programming), as follows:

Bipolar

Unipolar

and

Input

has four different input ranges. You select the

Range

W8

and the BP*/UP bit

5VRange

SetW8 BP*/UP Cleared BP*/UP Cleared

SetW8 BP*/UP Set BP*/UP Set

to A-B

W8

in

Command Register 1 (described in

lOVRange

SetW8

(0 to +5 V or -5 to +5 V) and 10 V (0

NB-MI0-16X

toB-C

input polarity and

to

I·

--

c B A

Figure 2-5. 5 V Input Configuration

W8

C B A

Figure 2-6. 10 V Input Configuration (Factory Setting)

Considerations

Input polarity/range selection depends on the expected input range input range can accommodate a large signal variation but sacrifices voltage resolution. Choosing a smaller input range increases voltage resolution but may result in the input signal going out range. For best results, the input range should be matched as closely as possible to the expected

of

range

(below O V), a unipolar input

will occur and

the input signal. For example,

for

Selecting

so

a bipolar input range would

Input

is best. However,

Ranges

if

the input signal

if

the signal does go negative, inaccurate readings

be

appropriate.

of

the incoming signal. A large

is

guaranteed to never

go

negative

of

©

National

Instruments

Corporation

2-7

NB-MI0-16X

User

Manual

Configuration

and

Installation Chapter2

Software-programmable gain on the NB-MI0-16X increases overall flexibility by matching input signal ranges to those accommodated by the NB-MI0-16X ADC. The NB-MI0-16XH board has

of

1,

gains

2, 4, and 8 and is suited for high-level signals near the range

NB-MI0-16XL board is designed to measure low-level signals and has gains

500. With the proper gain setting, the signal. Table

2-3 shows the overall input range and precision according to the input range

full resolution

of

the ADC can be used to measure the input

of

the ADC. The

of

l,

10, 100, and

configuration and gain used.

Table 2-3. Actual Range and Measurement Precision Versus Input Range Selection and Gain

Range Configuration Gain Actual Input Range Precision*

Oto+SV 1

2 0

4

8

10

100 0 to +o.05 V

500

Oto+lOV

1 2 4

8 0 to

10

100

500

-5

to +SY

1 2 -2.5 to +2.5 V 76.3 4

8 -0.625 to +o.625 V 19.1

10 -0.5 to +o.5 V 15.3

500

-10 to +lOV

1

2 -5 to 4 -2.5 to +2.5 V 76.3 µV 8 -1.25 to + 1.25 V

10

100 -0.1 to

500 -20 mV to +20

Oto+S

0 to

V

to

+2.5 V 38.1 +l.25

V

76.3

19.1 0 to +o.625 V 9.54 0 to +o.5 V 7.63

763nV

Oto+lOmV

Oto+lOV 0

to+S

V 76.3

153nV

153µV

0 to +2.5 V 38.1

+l.25 Oto+l Oto+o.l

V

V 15.3

V 1.53

Oto+20mV

-5 to +5 V

19.1 µV

305nV

153µV

-1.25 to + 1.25 V 38.1

-lOmVto+lOmV

-lOto+lOV

+5

V

305nV

305µV

153µV

38.1

-1

to+l

V 30.5

+o.l

V 3.05

mV

610nV

µV µV µV µV µV

µV µV

µV µV µV µV

µV µV µV

* The value

NB-MI0-16X

of

l least significant bit

(1

LSB)

of voltage increment corresponding to a change count.

User

Manual

2-8

the 16-bit ADC, that is, the

of

one count in the ADC 16-bit

Corporation

Chapter

2

Configuration

and

Installation

Analog

You can select different analog output configurations by using the jumper settings shown in Table 2-1. The following paragraphs describe each

Output

Configuration

of

the analog output configurations in detail.

External and Internal Reference

Each analog output channel can be connected to the NB-MI0-16X internal reference the external reference signal connected to the EXTREF pin (pin 22) on the channels need not be configured the same way, although only one

10

V) can be used at a time. (You cannot, for example, use the internal

of

I/0

the internal references

10

V reference on Channel

0 and the internal 5 V reference on Channel 1.)

External Reference Selection

You select the external reference signal for each analog output channel by setting the following jumpers:

Analog Output Channel

0:

W2 A - B External reference signal connected

reference input.

1:

Wl

A - B External reference signal connected to DAC 1

reference input.

of

10 V or

connector. Both

(5

to

DAC 0

to

V or

This configuration is shown

in

Figure 2-7.

W2

- ·I

A B C

Channel 0

Figure 2-7. External Reference Configuration

Wl

- . I

A B C

Channel 1

Internal Reference Selection (Factory Setting)

You select the onboard reference for each analog output channel by setting the following jumpers:

0:

Analog Output Channel

This configuration is shown in Figure 2-8.

W2 B - C Onboard reference connected to DAC O reference

input.

1:

Wl

B - C Onboard reference connected to DAC 1 reference

input.

2-9

NB-MIO-l

6X

User

Manual

Configuration

and.Installation

Chapter2

W2

I·

Figure

Both channels must setting

5 V internal reference:

10

These configurations are shown in Figure

W4

as

follows:

V internal reference:

use

2-8.

Internal Reference Configuration (Factory Setting)

the

same

-I

A B C A B C

Channel 0 Channel I

internal reference. You select which internal reference

W4

A-B

B-C

W4

2-9.

WI

I·

(factory setting)

-I

W4

to

use

by

A B C

5V

Figure 2-9. Reference Choice Configurations

Analog Output Polarity Selection

Each analog output channel can configuration

-V ref

to output circuitry and can either channels need not configured for bipolar output.

Bipolar Output Selection (Factory Setting)

You

select

jumpers:

V

has

a range

ref

at

the

analog output V ref

be

the

bipolar output configuration for

of

configured the same

be

configured

Oto Vref at the analog output A bipolar configuration

is

be

the

onboard reference or

for

the voltage reference used

way;

however,

each

I·

(Factory setting)

either unipolar or bipolar output. A unipolar

analog output channel

-I

A B C

IOV

has

by

the

DA

Cs

in

the

an

externally supplied reference. Both

at

the

factory both channels

by

setting

a range of

analog

are

the

following

Analog Output Channel

This configuration

NB-MI0-16X

User

is

shown in Figure 2-10.

Manual

0:

W6 A - B

1:

W7

A - B

2-10

Corporation

National Instruments DAQ NB-MIO-16X User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Preface

Contents