Intelligent Motion Systems Computer Hardware UDAS 1001E User Manual

INNOVATIVE PC Data Acquisition Solutions

UDAS-1001E Series

Hardware User Manual

for the

Multifunction Data Acquisition System

855M495

1.0

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Technica l Assista nce a nd Service

Seller's warranty as herein set forth shall not be enlarged, diminished or affected by, and no

obligation or liability shall arise or grow out of, Seller's rendering of technical advice, facilities or

service in connection with Buyer's order of the goods furnished hereunder. Products returned for

warranty service, but which are found to be fully functional and in conformance with

specifications may be subject to a nominal service charge and return freight charges. Periodic re-

calibration of products, if required, is the responsibility of Buyer and is not provided under this

Warranty.

Online Support

If errors persist after repeatedly checking the unit as described in the UDAS-1001E Series

Hardware User Manual, check the technical support links on Intelligent Instrumentation’s 24-

hour World Wide Web site at h ttp :/ / w w w .in s tru m e n t.co m . The site contains information on

Intelligent Instrumentation’s products, new developments, announcements, application notes,

application examples, and other useful information. The site and support areas continue to grow

as new products, updates, and features are added.

Em ail Sup p ort

Intelligent Instrumentation’s technical support can be reached via email. When sending an email

message, be sure to include complete contact information as well as a detailed description of the

products being used and the problem. Use the following addresses to contact the support group:

North Am erican Cus tom ers

[email protected]

International Cus tom ers

[email protected]

In France:[email protected]

In Italy: [email protected]

In Germany: [email protected]

Sta tic Se nsitivity

Seller ships all static-susceptible products in anti-static packages. Seller's Warranty as herein set

forth shall not cover warranty repair or replacement for products damaged by static due to

Buyer's failure to use proper protective procedures when handling, storing, or installing products.

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Tra de m a rks

U-Link‘ ‘ ‘ ÔSoftware Libraries is a trademark of Intelligent Instrumentation Incorporated.

VisualDesignerÒ is a registered trademark of Intelligent Instrumentation Incorporated.

LabVIEWÒ is a registered trademark of National Instruments Corporation.

WindowsÒ 98 is a registered trademark of MicrosoftÒ Corporation in the U.S.A. and other

countries.

Other products or brand names are trademarks or registered trademarks of their respective

companies.

Use of Equipm e nt

Intelligent Instrumentation Inc., assumes no responsibility for any direct, indirect or

consequential loss or damages resulting from misuse of the equipment or for improper or

inadequate maintenance of the equipment or for any such damage or loss resulting from the use

of other equipment, attachments, accessories, and repairs at any time made to or placed upon the

equipment or any replacement thereof. Furthermore, Intelligent Instrumentation Inc., makes no

representations or warranties, either expressed or implied, in connection with the use of the

equipment in the event it is improperly used, repaired or maintained.

FCC Ra dio Fre que ncy Inte rfe re nce Sta te m e nt

This equipment generates and uses radio frequency energy, and may cause interference to radio

or television reception.

Per FCC rules, Part 15, Subpart J , operation of this equipment is subject to the conditions that no

harmful interference is caused and that interference must be accepted that may be caused by

other incidental or restricted radiation devices, industrial, scientific or medical equipment, or

from any authorized radio user.

The operator of a computing device may be required to stop operating his device upon a finding

that the device is causing harmful interference and it is in the public interest to stop operation

until the interference problem has been corrected.

The user of this equipment is responsible for any interference to radio or television reception

caused by the equipment. It is the responsibility of the user to correct such interference.

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UDAS-1001E Series User Manual

Revision History

Version

1.0

Date

Revision

000218

Original Release

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Table of Contents

Chapter 1

UDAS-1001E Series Data Acquisition Systems

1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FIGURE 1.1 UDAS Series Block Diagram . . . . . . . . . . . . . . . . . . . . . . .

1.2 UDAS 1001E Series Functional Description . . . . . . . . . . . . . . . . . . . . . . .

1.2.1 Data Acquisition Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FIGURE 1.2 UDAS-1001E-4 dimensional drawing. . . . . . . . . . . . . . . . .

1.2.2 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 Software Support and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3.1 Software Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1

1-2

1-4

1-10

1-11

Chapter 2

Chapter 3

Configuration and Installation

2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2 Power-on Default Digital I/O Configuration . . . . . . . . . . . . . . . . . . . . . . . .

FIGURE 2.1 UDAS Switch S1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TABLE 2.1 CJC Jumper Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3 Connecting the UDAS Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1

2-2

2-4

2-5

Checking the System

3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2 Installing and Running UDAS SYSCHECK . . . . . . . . . . . . . . . . . . . . . . . .

3.3 SYSCHECK Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3.1 Unit Info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FIGURE 3.1 Unit Info dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3.2 System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FIGURE 3.2 UDAS SYSCHECK System Check dialog . . . . . . . . . . . . .

3.3.2.1 Analog Input Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FIGURE 3.3 UDAS SYSCHECK Analog Input Test of a UDAS unit. . . .

3.3.2.2 Analog Output Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FIGURE 3.4 UDAS SYSCHECK Analog Output Test of a UDAS unit . .

3.3.2.3 Counter Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FIGURE 3.5 UDAS SYSCHECK Counter Test in Count Mode . . . . . . .

3-1

3-2

3-3

3-4

3-5

3-6

3-7

FIGURE 3.6 UDAS SYSCHECK Counter Test: Measure Input High Mode 3-8

FIGURE 3.7 UDAS SYSCHECK Counter Test: Measure Frequency Mode 3-9

FIGURE 3.8 UDAS SYSCHECK Digital I/O Test . . . . . . . . . . . . . . . . . .

3.3.3 Paced Analog Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FIGURE 3.9 UDAS SYSCHECK Paced Analog Input Window . . . . . . .

FIGURE 3.10 High-Speed Aquisition Sample. . . . . . . . . . . . . . . . . . . . . .

3.4 Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4.1 Basic Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FIGURE 3.11 System Error message window . . . . . . . . . . . . . . . . . . . . .

3-10

3-11

3-12

3-13

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Table of Contents

3.4.1.1 Verify Lower Level Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-13

Appendix A Specifications

A.1 UDAS-1001E Series Hardware Specifications. . . . . . . . . . . . . . . . . . . . .

A-1

A-4

A-5

A-6

A-7

TABLE A.1 Hardware Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . .

A.2 UDAS-1001E-3, UDAS-1001E-4 Dimensions . . . . . . . . . . . . . . . . . . . . .

FIGURE A.1 Dimensions of the UDAS unit (Top view) . . . . . . . . . . . . .

FIGURE A.2 Dimensions of the UDAS unit (Rear panel) . . . . . . . . . . .

FIGURE A.3 Dimensions of the UDAS unit (Bottom view) . . . . . . . . . .

FIGURE A.4 Dimensional Drawing of the UDAS series PCB . . . . . . . .

A.3 UDAS I/O Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TABLE A.2 UDAS I/O Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix B Accessories

TABLE B.1 Accessories for the UDAS-1001E Series . . . . . . . . . . . . . .

B.1 UDAS Termination Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B.1.1 PCI-20429T-1 Multifunction Termination Panel . . . . . . . . . . . . . . . . .

FIGURE B.1 Securing the PCI-20429T-1 to the UDAS unit . . . . . . . . .

FIGURE B.2 PCI-20429T-1 Multifunction Termination Panel . . . . . . . .

B.1.2 UDAS Termination and Signal Conditioning Options . . . . . . . . . . . . .

FIGURE B.3 UDAS-1001E Termination Options. . . . . . . . . . . . . . . . . .

FIGURE B.4 UDAS-1001E Termination Options (continued) . . . . . . . .

FIGURE B.5 Diagram of the PCI-20430A-1’s connectors and cables. .

B.1.3 Isolator Blocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B-1

B-2

B-3

B-4

B-5

B-6

B-7

Appendix C Analog Input and Output Calibration Procedures

C.1 UDAS Analog Input Circuit Calibration Procedures . . . . . . . . . . . . . . . . .

C.1.1 Removing the UDAS Unit’s Cover . . . . . . . . . . . . . . . . . . . . . . . . . . .

FIGURE C.1 Locations of Potentiometers for Adjusting Analog Circuits

C.1.2 Analog Input Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . .

C.2 UDAS Analog Output Circuit Calibration Procedure . . . . . . . . . . . . . . . .

C-1

C-2

C-3

C-6

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Ch a p t e r 1

UDAS-1001E Series Data

Acquisition System s

1.1 Introduction

The UDAS-1001E Series Data Acquisition Systems are stand-alone, multifunction, plug-and-play

data acquisition systems that connect to the Universal Serial Bus and operate using power

supplied through either the USB connector or an external power supply.

All of the systems feature analog inputs (8 differential, 16 single-ended), digital I/O (Two 8-bit

ports, each port configurable to input or output), and one counter channel. Selected models

include an analog output section.

The UDAS Models include:

UDAS-1001E-1

This is a stand alone unit for use with standard termination products.

UDAS-1001E-1G

This model is similar to the UDAS-1001E-1, without the housing for use in OEM applications or

other situations where a bare board is appropriate.

UDAS-1001E-2

This is a stand alone unit for use with standard termination products. It includes a two-channel

analog output with wave form generation.

UDAS-1001E-2G

This model is similar to the UDAS-1001E-2, without the housing for use in OEM applications or

other situations where a bare board is appropriate.

UDAS-1001E-3

This model has a multifunction data acquisition system with built-in termination.

UDAS-1001E-4

This model is similar to the UDAS-1001E-3, with built-in termination and analog outputs.

1-1

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UDAS-1001E Series Data Acquisition Systems

1.1.1 Fe a ture s

Features and basic specifications of the UDAS units are listed below. Specifications of each UDAS

unit are listed in Appendix A, Specifications. The UDAS system block diagram is shown below.

DIGITAL I/O

ANALOG

A/D

FRONT-END

USB

m PROCESSOR

USB

RATE

GENERATOR

INTERFACE

CHIP

POWER

SUPPLY

ANALOG OUTPUT

RATE

GENERATOR

Dotted line indicates optional Analog Output

COUNTER

FIGURE 1.1 UDAS Series Block Diagram

Softwa re Support Libra ry

The software support library is included with the UDAS.

UDAS Support Software includes:

•

UDAS SYSCHECK

U-Link Software Libraries for Windows 98

LabView 5.0 Support Library

UDAS Device Driver

Visual Designer Support Library

1-2

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UDAS SYSCHECK

The SYSCHECK application enables you to verify the UDAS installation is functioning properly.

SYSCHECK can also be used during the calibration procedure and for simple data acquisition.

U-Link Software Lib raries for Wind ows 98

These function libraries allow custom application development using C/C++ and Visual Basic.

Lab View 5.0 Sup p ort Library

Allows the use of UDAS with LabVIEW.

UDAS Device Driver

To use the UDAS unit, Microsoft Windows requires the UDAS device driver.

Vis ual Des igner Support Lib rary

The Visual Designer Support Library allows the use of the UDAS device in Visual Designer 4.0

applications.

Ana log Input

The UDAS unit features:

•

16 Single-ended or 8 Differential Analog Inputs

(±0.05 V, ±0.1 V, ±0.5 V, ±1 V, ±5 V, ±10 V, and 0-0.1 V, 0-1.0 V, 0-10V programmable input

ranges).

•

Analog Input resolution: 12-bit (1 part in 4096).

Up to 100 kHz input sample rate (built-in timebase generator).

Analog Trigger function to start analog-to-digital conversions.

Ana log Output

The UDAS unit features:

•

Up to 100 kHz output rate (built-in timebase generator).

2 analog outputs at 12-bit resolution (±10V output range, 1 part in 4096).

Waveform generation

1-3

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UDAS-1001E Series Data Acquisition Systems

Digita l Input/ Output

•

16 Programmable digital I/O channels. Groups of 8 separately programmable for input or

output.

•

Digital inputs can be programmed to read digital signal status, detect a change-of-state or to

perform low speed event counting (up to 2 kHz).

•

Digital outputs can drive TTL level signals.

8 of the 16 I/O channels can be configured for preset direction and output state levels for safe

power-up and reset situations.

Counte r

One 16-bit counter channel performs general purpose event counting and frequency measurement

up to 20 MHz up to 2 MHz for high-speed event counting.

Term ination

The UDAS-1001E-3 and UDAS-1001E-4 units have built-in depluggable termination blocks for

connecting I/O signals. The UDAS-1001E-1 and UDAS-1001E-2 units have a 50-pin I/O connector

for attaching external termination. Information on termination panels is provided in Appendix B,

Accessories.

1.2 UDAS 1001E Series Functional Description

This section provides information on the following data acquisition functions:

•

Analog input

High-speed analog input

Acquisition pacing and triggering

Power supplied by the USB port or by an external power supply

1.2.1 Da ta Acquisition Functions

Ana log Input

The A/D converter on the UDAS device is a 12-bit converter with a throughput rate of 100 kHz.

For analog input:

•

Programmable input voltage ranges are 0-10 V, ±5 V, and ±10 V.

1-4

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•

Programmable gains are 1, 10, and 100 which translate to a full-scale input of 0-10 V, 0-1.0 V,

0-0.1 V, ±10 V, ±1.0 V, ±0.1 V, ±5 V, ±0.5 V, and ±0.05 V.

The analog input section has 16 single-ended or 8-differential analog input channels.

The analog input section has a first-in-first-out (FIFO) buffer for high-speed capturing of data up

to 100 kHz.

An analog trigger is also provided to initiate high-speed conversions based on a voltage transition

on a selected analog input channel, or on an external TTL level signal. A programmable crystal-

based rate generator regulates high-speed conversions.

High-Spe e d Ana log Input Mode

High-speed mode uses the rate generator (described below), or an external input to start data

conversions. The use of the rate generator or an external signal to start conversions is referred to

as pacing.

On the UDAS unit, the rate generator is able to provide rates from 0.477 conversions per second

to 100,000 conversions per second. These conversions are either performed on a single input

channel, or performed on a range of input channels by using the channel scanner (described

below).

When the conversion is complete on the current channel, the channel scanner automatically

selects the next channel. The term high-speed refers to the use of pacing to automatically begin

the conversions. The speed of the actual rate of conversions can be controlled by using the rate

generator. See Rate Generator , on page 1-6.

Sta rting a nd Stopping the High-Spe e d Ana log Input Mode

There are several methods to start and stop conversions available on the UDAS:

•

Start with trigger, Stop with software

Start with trigger, Stop after N samples

Start with software, Stop N samples after trigger

Start with software, Stop with software

Start with software, Stop after N samples

Starting Convers ions

To start the conversions, use either a trigger or a software command. The trigger can be an

external digital TTL level input, or an analog input. For an external TTL signal, the slope (rising

edge or falling edge) must be specified. Use the external input pin to provide this input.

1-5

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UDAS-1001E Series Data Acquisition Systems

If an analog input is used for the trigger, specify the trigger level, analog input channel, and

slope. Use analog output channel 1 for setting the trigger level.

No te : When using analog input channel 1 for a trigger, do not use this channel

for any other purpose.

When an input signal on the selected channel of the proper slope (rising or falling voltage) crosses

the trigger level, the conversion process begins.

Stopping Convers ions

To stop a conversion, use either a software command, an N sa mples counter, or a combination of a

trigger and an N sa mples counter.

Use the N sa mples counter to specify the number of samples that you want to capture.

When the trigger is used to stop a conversion, and the N samples counter is used, a post-

triggering function occurs. In this mode, software is used to start conversions and continue

indefinitely until a trigger event occurs. When a trigger event occurs, N additional samples are

captured.

Ra te Ge ne ra tor

The UDAS unit contains an on-board 24-bit rate generator for analog input pacing. The base clock

for the rate generator is an 8 MHz clock derived from a crystal which provides 125 ns resolution

and a frequency range of 0.4768371 Hz to 4 MHz.

The I/O connector has a rate generator output pin that is driven by either the Analog Input Rate

Generator or the Analog Output Rate Generator.

Cha nne l Sca nne r

When the channel scanner is enabled, immediately after the conversion on the current channel

finishes, the next analog input channel to be converted is automatically selected.

The UDAS device incorporates a 0 to N scanner. This allows analog conversions on all of the input

channels from channel 0 to channel N, where the value of N is programmable.

The scanner selects each channel for conversion, beginning with channel 0, incrementing to

channel N. After the conversion on channel N is complete, the scanner selects channel 0 and the

process repeats.

1-6

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The scanner operates with the built-in analog channels, or with the optional AI-MAX. The AI-

MAX allows up to 256 analog input channels to be connected to a single UDAS device.

No t e : The scanner begins on the selected trigger channel and not channel 0 when the

start on trigger mode is used with an analog input trigger.

High-Spe e d Ana log Input Trigge ring

To start or stop conversions, use triggering in the High-Speed Analog Input mode in the UDAS

device. The trigger signal can be either an analog input or a digital input.

When using an analog input as the trigger, the start on trigger mode causes the scanner to start

on the trigger channel. For example, if the trigger channel is set to 5, the N channel of the 0 to N

scanner is set to 7, the return data is as follows:

channel 5

channel 6

channel 7

channel 0

channel 1

...

channel 7

channel 0

...

When using the stop on trigger mode and the trigger is from an analog input channel, the trigger

signal is sampled only when the trigger channel is the active scanner channel. Although this

allows any channel to be used for triggering, it imposes some restrictions on the characteristic of

the trigger signal.

The duration of the trigger signal must be long enough to cause the unit to trigger. Use the

following formula to calculate the length of a signal to ensure that the signal is long enough to

activate the trigger: (To ta l ch a n n e ls s ca n n e d )/ (s ca n ra te in Hz ).

1-7

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UDAS-1001E Series Data Acquisition Systems

Exam ple:

If 9 channels are being scanned at a rate of 100Hz and the slope is low to high, the trigger signal

must remain below the trigger level for 9/100 of a second, and above the trigger level for 9/100 of a

second to ensure that a trigger event occurs. When using External Input as the trigger, this

restriction does not apply.

When using an analog input channel for triggering, analog output channel 1 is used to set the

trigger level.

No t e : Do not use analog output channel 1 for any other purpose while analog

triggering is in use.

Due to the internal configuration of the unit, the voltage appears on the analog output 1 pin as

the negative value of the desired trigger voltage. Connecting this pin to another signal, or

shorting it out causes the trigger voltage to be incorrect.

Auto Ze ro

When in auto zero mode, the inputs to the Analog input circuit are internally grounded, disabling

the input multiplexers. This enables a known 0 volt signal to be measured, and the value read can

be used to compensate for input offset errors.

Ana log Output

The UDAS device has two analog output channels. Each output channel has 12-bit resolution and

a ±10 V output range. A FIFO is available for waveform generation.

This FIFO can be used as a circular buffer for either or both analog output channels to allow

repetitive waveform generation and supports waveforms of up to 512 points (single channel) or

256 points (dual channel). The unit also supports non-repetitive wave forms.

When the unit is powered-on and the analog outputs are not enabled, the output voltage is 0 V.

This provides a known voltage when the UDAS unit is powered-up.

Analog output channel 1 is also used to support the analog trigger function for hardware-paced

analog input conversions (as described above).

Digital I/ O

The digital data acquisition circuit consists of two 8-bit digital I/O ports providing 16 digital I/O

bits and one 32-bit counter. Output power-on states are configured for Port 1 through an internal

DIP switch. The digital I/O is configured as 2 ports (0 and 1) of eight bits each.

1-8

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Digital I/O signals are TTL-compatible and perform functions such as reading digital inputs,

driving digital outputs, and detecting input change-of-state.

Digital I/O direction is programmable separately for each port through software. A nine-position

DIP switch is provided inside of the unit to select the power-up direction of Digital I/O Port 1

(input/output) and to individually set power-up output states for each bit.

Counte rs

One counter input line is connected to a 32-bit counter for high-speed counting (up to 2 MHz).

This counter supports event counting and frequency measurement.

An event counter counts pulses occurring at its input. For frequency measurement mode, the

pulses are captured over an internally generated gate time. The frequency is calculated from the

captured count and the gate time. The gate time can be set to 1ms, 10ms, 100ms, or 1s through

software.

Term ination

The UDAS unit provides the user with several options for connecting to I/O signals. You can use a

50-pin ribbon cable to connect signals directly to the UDAS unit.

There are many termination products available from Intelligent Instrumentation with a 50-pin

interface. See our catalog for a variety of termination options. For the UDAS-1001E-3 and UDAS-

1001E-4 models, use the built-in termination to connect signals directly to the unit.

The built-in termination panel is directly mounted to the back plate of the UDAS unit, providing

easy access to all I/O signals (FIGURE 1.2, UDAS-1001E-4 dimensional drawing). The

connections are made using pluggable 5mm terminal strips to simplify the wiring. A cold junction

compensation circuit (CJ C) is incorporated on the board to allow the use of thermocouples.

To use the CJ C circuit, you must enable it by setting the jumpers. The jumpers are located on the

back side of the termination panel and require removal of the panel to gain access. For

information on the jumpers, reference Chapter 2, Configuration and Installation, and see TABLE

2.1, CJ C J umper Positions.

No t e : When the CJC is enabled, differential channel 0 is used. Do not connect

anything to Analog Input 0 or Analog Input 8.

1-9

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UDAS-1001E Series Data Acquisition Systems

A diagram of the termination panel for the UDAS-1001E-4 unit is shown below.

5.750

6.600

1.520

7.290

FIGURE 1.2 UDAS-1001E-4 dimensional drawing

1-10

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1.2.2 Powe r

The UDAS unit normally uses power from the host computer via the USB cable. Power can also be

obtained from an external power supply that is available (See Appendix B, Accessories). When the

UDAS unit is connected to a power source, the computer controls the power. The unit does not

have a power switch. There is an LED labeled PWR located on the front panel that indicates

power to the unit, regardless of its source.

The USB specification imposes strict requirements on power usage. If an external power supply is

used, up to 200 mA at +5 VDC is available to external termination circuits (available at pin-26

and pin-48 of the unit’s 50-pin I/O connector).

See section 1.3, Software Support and Accessories or Appendix B, Accessories for the part numbers

of the available Power Adapters. If the power is supplied from the PC through the USB port, care

must be taken to limit the load from the external termination panel to less than 20 mA.

1.3 Software Support and Accessories

1.3.1 Software Support

Diagnostic

UDAS SYSCHECK

UDAS SYSCHECK software for Windows is an easy-to-use system assurance and diagnostic

utility package. UDAS SYSCHECK is a useful tool for quickly verifying the hardware is

functioning properly. This program also performs basic data acquisition tasks. UDAS

SYSCHECK is provided on the UDAS-1001E Data Acquisition System CD, or is available to

download, free of charge, from Intelligent Instrumentation’s Web site (www.instrument.com).

De ve lopm e nt

Vis ual Des igner Application Generator

Visual Designer is a powerful, easy-to-use application generator that supports all of Intelligent

Instrumentation’s data acquisition hardware and is available from Intelligent Instrumentation.

Use Visual Designer to develop custom Windows applications for collecting remote data using a

graphical block diagram development environment.

To create custom applications in a fraction of the time it takes when using a programming

language, Visual Designer is able to combine built-in professional screen displays and user

interface elements with powerful data acquisition and processing blocks.

1-11

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UDAS-1001E Series Data Acquisition Systems

Vis ual Des igner UDAS Sup p ort Lib rary

This support package provides the block functions necessary to acquire data and output data

using the UDAS device. To use Visual Designer or the Visual Designer Evaluation Version with

an UDAS unit, the Visual Designer UDAS Support Library must be installed on the computer.

LabVIEW UDAS Support Library

This support package enables the development of customized UDAS data acquisition and control

applications under the LabVIEW environment. To use this software, National Instruments

LabVIEW software (version 5.0 or higher is supported) must be installed on the computer.

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Ch a p t e r 2

Configuration and

Installation

2.1 Introduction

This chapter contains instructions on the configuration and installation of the UDAS unit.

2.2 Power-on Default Digital I/ O Configuration

In some situations, it is important to have the digital output port on a UDAS unit initialize at

power-on to a particular state. For example, if the digital output port controls a piece of

mechanical equipment, safety regulations may require the digital output port bits to have values

of 0000 0011 when power is first applied. Port 1 on the UDAS unit provides the ability to set the

power-on direction to output and the states of all of the bits. A switch block located on the main

board of the UDAS unit accomplishes this task. Since the default switch states configure the port

for input, you may not need to change the switch settings.

This section contains instructions for setting the power-on default Digital I/O configuration, if

applicable.

CAUTION:

Use proper static-sensitive device handling procedures (such as the use of grounded

wrist-strap) when opening the unit, as damage to the equipment may occur.

Re m oving the Cove r

1. Unplug the power supply to the UDAS unit.

2. Using a Phillips head screwdriver, remove the two Phillips head screws on the front face plate

of the UDAS unit I/O cover. The front face plate contains the power and status indicators and

the USB connector.

3. Carefully separate the face plate from the cover.

4. Slide the cover towards the open end of the unit to free it from the back termination plate,

removing the cover from the UDAS unit.

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Configuration and Installation

Se tting the Configura tion

Switches 1-8 set the initial levels of the port’s channels 0-7 if the port is set for output operation.

A switch set to the On position sets the corresponding port’s output channel to a high level (TTL

+5V) on power-up.

FIGURE 2.1 UDAS Switch S1

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If you plan to use any of the digital I/O ports for output control in your application(s), note the

following Caution statement:

CAUTION:

For applications using UDAS units to generate output signals for control or other

sensitive purposes, the status or level of outputs during power-up may be of critical

importance. Integrated circuits and other devices powered by supply voltages are

subject to possible transients or an indeterminate status while the power supply

voltages are making the transition from zero to their steady-state values.

Locate switch S1 shown in FIGURE 2.1, UDAS Switch S1 in the lower left-hand corner of the

board.

1. Set the direction for Port 1. The default setting is input (Off).

To designate Port 1 as an output port: set switch 9 to the On position.

To designate Port 1 as an input port: set switch 9 to the Off position.

2. To set the initial data for Port 1, set switches 1-8.

On = 5 V

Off = 0 V

No te : You can reconfigure any of the ports through software after the unit is

powered-up. Port 0 always powers-up as an input port.

Re insta lling the Cove r

1. Insert the cover onto the rails located on both sides of the base of the UDAS unit and slide the

cover towards the back panel until the cover is seated into the frame on the back panel.

2. Place the face plate over the edges of the cover and unit’s frame.

3. Align the screw holes on the cover with the unit, insert each Phillips screw on the face plate

and tighten the screws into place.

Enabling the CJC

To enable the CJ C:

•

Install jumpers A, C and D on J P1.

The CJ C circuit uses differential channel 0 to report compensation information to the UDAS.

When using the CJ C circuit, verify there is no external signal connected to channel 0/8.

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Configuration and Installation

Channels connected to a thermocouple must be connected to bias resistors for proper operation.

Use jumpers J P2 and J P3.

No t e : When monitoring thermocouples, always use differential channels.

To select the jumpers for each channel that you plan to use for thermocouples, use TABLE 2.1,

CJ C J umper Positions shown below.

Differential

JP1 Jumper Position JP2 Jumper Position

Channel #

AI 1

AI 2

AI 3

AI 4

AI 5

AI 6

AI 7

AI 9

AI 10

AI 11

AI 12

AI 13

AI 14

AI 15

TABLE 2.1 CJC Jumper Positions

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2.3 Connecting the UDAS Unit

Ma king the Initia l Connection

1. With the computer powered up, connect the USB cable to the computer or hub.

2. Connect the other end of the USB cable to the UDAS unit.

3. Verify the red PWR LED located on the face plate of the UDAS unit illuminates.

4. The system builds a driver information database, and then the Add New Hardware Wizard

dialog appears on the computer monitor. The wizard searches for new drivers for the unknown

device. Click the Ne xt button.

5. Select Se arch for the b e st d rive r, and click the Ne xt button.

6. Insert the UDAS-1001E Data Acquisition System CD in the computer’s CD ROM drive.

7. In the Add New Hardware Wizard dialog, select the CD-ROM drive by clicking on the check

box. Deselect the check boxes for the Floppy Disk drive (default setting), Microsoft Wind ows

Update , and Sp e cify Location Op tions. Click Ne xt to continue.

8. The Wizard finds the TAOSDRV.INF file and displays a message stating the file has been

found. Click the Ne xt button.

The Wizard copies the driver and rebuilds the driver database.

9. After the installation process is complete, click the Finish button.

The unit’s driver is now installed.

10. Verify the red STATUS LED located on the face plate of the UDAS unit is illuminated.

11. Verify the system is operating correctly using the UDAS SYSCHECK software. UDAS

SYSCHECK software is included on the UDAS-1001E Data Acquisition System CD and can

also be found on Intelligent Instrumentation’s web site. See Section 1.3.1, Software

Support, on page1-11 in Chapter 1, UDAS-1001E Series Data Acquisition Systems.

12. For information on using SYSCHECK, see Chapter 3, Checking the System in this manual.

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Ch a p t e r 3

Checking the System

3.1 Introduction

This chapter contains instructions for installing and using the UDAS SYSCHECK software. The

software contains diagnostic features that verify the UDAS unit is functioning.

WARNING!

Use extreme caution when using SYSCHECK.

The UDAS SYSCHECK software could cause unexpected results in the equipment that you

connect to the UDAS unit.

Depending on the type of equipment that you have connected to the UDAS unit, severe

damage to equipment and/or bodily harm may occur while conditions of the UDAS are in

transition.

Large unisolated voltages may damage the UDAS unit. UDAS analog output will not drive low

impedance loads.

The UDAS digital I/O inputs and outputs must be TTL compliant.

UDAS analog inputs in excess of 20 V may cause permanent damage to the UDAS unit.

UDAS counter inputs must be TTL compliant.

SYSCHECK is only an interface to the UDAS unit(s). The way that you interface input or outputs

to the UDAS can be a complicated issue.

Since a variety of termination panels are available for the UDAS units, refer to the

documentation provided with the termination panel for the exact I/O configuration of the specific

panel that you purchased.

Termination options are discussed in Appendix B, Accessories in this manual.

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Checking the System

3.2 Installing and Running UDAS SYSCHECK

UDAS SYSCHECK provides an easy-to-use graphical interface for using and displaying the I/O

capabilities of the UDAS unit.

Syste m Re quire m e nts

•

UDAS SYSCHECK 1.0 only runs on Windows 98.

The installation requires approximately 1 Mbyte of free disk space.

Insta lling SYSCHECK

1. To install UDAS SYSCHECK, insert the UDAS-1001E Data Acquisition System CD into the

CD ROM drive on the computer.

2. From the Windows 98 desktop, click Start, select Run and type:

<Us e yo u r CD d rive le tte r>:\ Sys ch e ck\ SETUP.EXE<ENTER>

3. Follow the software installation instructions in the dialogs (to stop the installation press ESC

or click Cancel).

When the installation is complete, UDAS SYSYCHECK files are copied to a newly created

folder on the computer’s hard drive. A new folder with shortcuts to the UDAS SYSCHECK

program appears on the Start menu.

3.3 SYSCHECK Operation

When SYSCHECK runs, it queries the Universal Serial Bus (USB) to locate all of the UDAS units

that are attached to the host. UDAS SYSCHECK reports the number of UDAS units detected and

tracks the UDAS units by a unique serial number assigned to each unit. The serial number is

provided on the outside of the unit, and internally in the UDAS unit’s firmware.

In the UDAS SYSCHECK window, the main menu contains three selection tabs, Unit Info,

System Check, and Paced Analog Input as shown in FIGURE 3.1, Unit Info dialog .

In the Unit Info dialog, select one UDAS unit from the drop-down list. After making your

selection, other features of the software allow you to display inputs to, or manipulate outputs

from, the selected UDAS unit.

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3.3.1 Unit Info

The Unit Info dialog displays the number of UDAS units detected and has a drop down list

containing the serial number for each UDAS unit detected by SYSCHECK.

FIGURE 3.1 Unit Info dialog

If there is only one UDAS unit, the message shown beneath the drop down list displays the unit

type and self-test results. When the self-test reads PASSED, the unit is operable.

If multiple UDAS units are being used, to select a unit for testing, click the desired serial number

in the list.This selection process updates the description and the self-test results to reflect the

state of the currently selected unit.

After you select a unit’s serial number from the list, the SYSCHECK and paced analog input

operations are performed on the selected unit.

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Checking the System

3.3.2 System Check

When the System Check tab is selected, a dialog containing buttons used to execute a variety of

system test programs appears as shown in FIGURE 3.2, UDAS SYSCHECK System Check dialog.

FIGURE 3.2 UDAS SYSCHECK System Check dialog

The System Check tabbed dialog displays four major sub-functions possible on the UDAS units.

These include Analog Input, Analog Output, Counter, and Digital Input/Output. Click one of

these buttons to open a dialog to manipulate and/or display the desired sub-function on the

selected UDAS unit.

To test each of the I/O types listed in the dialog, click the corresponding button to launch a new

window for testing that I/O type on the UDAS unit. Examples of each I/O test are provided in the

next two sections.

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3.3.2.1 Analog Input Test

Click the Analog In button to access a new window specific to analog input. The UDAS

SYSCHECK ANALOG INPUT dialog shown in FIGURE 3.3, UDAS SYSCHECK Analog Input

Test of a UDAS unit appears.

The analog input test performs software-based reading of the first 8 analog input channels on

UDAS units.

Select from the drop-down lists to select the Range, Gain, Single Ended/Differential configuration,

and Average (the number of readings to average from each channel).

Select either the Volts or Counts radio button to display the channel data in volts or counts.

Click the Re ad Channe ls button to acquire the input voltages to the UDAS unit. Each time that

you click the Re ad Channe ls button, the channel data is read by the UDAS unit and the display is

updated.

FIGURE 3.3 UDAS SYSCHECK Analog Input Test of a UDAS unit

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Checking the System

3.3.2.2 Analog Output Test

The analog output test controls the voltage on the analog output channels of the UDAS unit.

In the UDAS SYSCHECK Test Category Selection Window, click the Analog Out button and the

UDAS SYSCHECK ANALOG OUTPUT dialog shown in FIGURE 3.4, UDAS SYSCHECK Analog

Output Test of a UDAS unit opens.

In the Channel 0 and Channel 1 fields, click to insert the cursor and enter the desired value (volts

or counts) in any of the four data entry fields.

After replacing the old value with a new value, press the Ente r key to update both analog outputs

from the UDAS unit.

Clicking the Disab le Outp uts check box grounds both of the analog output channels.

FIGURE 3.4 UDAS SYSCHECK Analog Output Test of a UDAS unit

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3.3.2.3 Counter Test

The counter test monitors TTL transitions that are connected to the counter input of the UDAS

unit. Depending on the mode that you select, the TTL level of the gate pin may effect the readings.

For all of the modes except Me asure fre que ncy, data is automatically read and displayed four

times per second.

For the Me asure fre que ncy mode, the rate of display updates may be slower depending on the

gate time selection.

Checking the Re se t counts e ve ry d isp lay check box causes the counter to reset to zero after every

read and display cycle. The interface is shown in FIGURE 3.5, UDAS SYSCHECK Counter Test in

Count Mode.

FIGURE 3.5 UDAS SYSCHECK Counter Test in Count Mode

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Checking the System

For the Count when gate is high and the Count when gate is low modes, the TTL level of the gate

enables or disables counting, depending on the mode that you set. If there is no input connected to

the gate input, use the Count when the gate is in high mode.

For the modes Me asure inp ut hig h p e riod, Me asure inp ut low p e riod , and Me asure total p e riod ,

the data displays shown at the bottom portion of the dialog provide the status and the time

between the most recent appropriate edges as shown in FIGURE 3.6, UDAS SYSCHECK Counter

Test: Measure Input High Mode.

FIGURE 3.6 UDAS SYSCHECK Counter Test: Measure Input High Mode

The status field is looking for TTL transitions.

Select the Me asure fre q ue ncy radio button and the dialog shown in FIGURE 3.7, UDAS

SYSCHECK Counter Test: Measure Frequency Mode opens.

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Select the desired Gate Time. The data displays shown at the lower portion of the dialog provide

the status and the frequency in hertz.

FIGURE 3.7 UDAS SYSCHECK Counter Test: Measure Frequency Mode

The gate time is the amount of time that UDAS uses to count TTL transitions. This time base

allows frequency to be calculated by the software.

Longer gate times result in frequency calculations with more significant digits because a greater

number of transitions are gathered. Shorter gate times result in frequency calculations with

fewer significant digits because a smaller number of transitions are gathered.

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Checking the System

Digita l I/ O Te st

The Digital Input/Output test enables you to read data from, or write data to, either 8-bit Digital

I/O port on a UDAS unit. FIGURE 3.8, UDAS SYSCHECK Digital I/ O Test shows an example

test of the UDAS unit that has two 8-bit digital I/O ports.

FIGURE 3.8 UDAS SYSCHECK Digital I/O Test

Use the Input and Outp ut radio buttons to select the direction of a port.

The input and output data is displayed in Hexadecimal (0-FF).

Input ports are read and displayed four times per second.

Output data is written to the port only after clicking the Write Output Data button.

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3.3.3 Paced Analog Input

The Paced Analog Input dialog enables you to configure a hardware-paced analog input process.

Select the number of channels to include in the data run, select the gain, and select the single-

ended/differential from drop-down lists in each field. See FIGURE 3.9, UDAS SYSCHECK Paced

Analog Input Window.

FIGURE 3.9 UDAS SYSCHECK Paced Analog Input Window

The pacer rate controls the clock rate of an on-board clock generator.

This clock can be configured for frequencies from 1 to 100,000 hertz. The pacer rate and number of

channels determine the sample rate for each channel in the run.

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Checking the System

Clicking the Hig h-Sp e e d Run button (shown in FIGURE 3.9, UDAS SYSCHECK Paced Analog

Input Window) configures and starts the process. This launches a full screen window that

displays the results of the run.

FIGURE 3.10 High-Speed Aquisition Sample

The time base is displayed on the x-axis and the voltages are displayed on the y-axis. A sample

screen is shown in FIGURE 3.10, High-Speed Aquisition Sample. Slow pacer rates may have slow

screen update rates.

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3.4 Troubleshooting Tips

3.4.1 Basic Troubleshooting

If you are unable to successfully communicate with the UDAS unit, this section contains

troubleshooting hints which may help identify the problem.

Verify that all of the proper connections have been made between the computer, UDAS unit(s),

and the equipment being monitored. If running SYSCHECK displays a message on the computer

monitor in a pop-up window as shown in FIGURE 3.11, System Error message window, reference

section 3.4.1.1, Verify Lower Level Drivers.

FIGURE 3.11 System Error message window

3.4.1.1 Verify Lower Level Drivers

To verify that low-level drivers are functional, check the USB port, UDAS driver, and power.

USB Port

Verify the system has a USB port that is properly installed from the Windows’ Start menu by

following these steps:

1. From the Start button, click Settings, then click Control Panel.

2. Double-click on the System icon.

3. Click the Device Ma na ger tab.

4. Click the View devices by type radio button.

If you do not see the Universal serial bus controller, resolve the problem with the USB port before

continuing.

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Checking the System

UDAS Drivers

Verify the UDAS system driver is properly installed by following the instructions for the USB

Port (above).

Click on the plus sign (+) located next to the Universal serial bus controller. When the directory

opens, double-click III Taos USB Data Acquisition System. A pop-up window appears displaying a

message that reads, This de vice is working prope rly.

If the III Taos USB Data Acquisition System icon does not appear in the USB devices list, verify

that both of the LEDs located on the front panel of the UDAS unit are illuminated. Verify that

your external equipment is not consuming excessive power. Refer to the power test in the next

section.

Powe r Te st

For proper operation, the power test requires:

•

the UDAS device be powered.

the UDAS device be connected to the USB.

the UDAS device pass its power on self-test (POST).

the UDAS device be initialized by the host computer.

To perform the power test:

1. Unplug the USB cable from the UDAS port.

2. Plug the USB unit cable back into the UDAS port.

•

One LED illuminates immediately, indicating power.

The computer monitor may display the Busy hourglass icon while the UDAS unit

initializes.

•

The UDAS status LED illuminates after POST and host enumeration.

3. Verify the UDAS unit has two LEDs illuminated.

Troub les hooting Errors

If the two LEDs do not illuminate:

•

Disconnect the I/O signals from the unit.

Unplug the unit for several seconds then reconnect the unit to see if the LEDs illuminate.

Some built-in tests may fail if the board was incompletely reset, even for components that are

functioning normally.

•

Verify the unit is receiving power and the power LED is illuminated.

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•

Check the wiring and cables for shorts or damage.

No t e : For units with USB cables connected directly to the computer as a power

source, when the computer’s power is off or if the computer is in a suspended

mode, the UDAS unit shuts down.

If errors still persist after repeatedly checking the unit, check the technical support links on

Intelligent Instrumentation’s web site http :/ / www.instrume nt.com for the most current support

information and contact addresses.

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Ap p e n d ix A

Specifications

A.1 UDAS-1001E Series Hardware Specifications

All specifications are typical at 25ºC unless otherwise noted.

No t e : When powered from an external source, the on-board power supply circuit can

supply up to 200mA at 5V DC to termination panels through the 50-pin I/O connector.

PARAMETER

CONDITIONS

SPECIFICATION

Analog Inputs

Number of Channels

Single-ended

Differential

Resolution

12-bits (1 part in 4096)

0 - 10 V, ±10 V, ±5 V

±20 V

Voltage Ranges

Overvoltage Protection

Power on or off

Software Programmable

Gains

1, 10, 100

Gain Accuracy

Gain = 1

0.02%

0.05%

0.08%

3mV

Gain = 10

Gain = 100

Input Offset Voltage

Input Bias Current

Input Impedence

500 pA

10 ⁹ohms/50 pF

Common Mode Input

Range

±10 V

Common Mode Rejection

60 Hz, 100 ohm imbalance

Gain = 1

-85dB

-90dB

Gain >= 10

TABLE A.1 Hardware Specifications

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Specifications

PARAMETER

CONDITIONS

SPECIFICATION

Noise

Input grounded at connector

(RMS)

Gain <=10

Gain = 100

1.0 LSB

1.2

DC Accuracy

Linearity Error

Throughput

No missing codes, guaranteed

±0.024%FS (± 1LSB)

100 k Samples/second

Analog Trigger (with AO

option)

Range

±10 V

Hysterisis

Resolution

Slope

28 mV

4.88 mV nominal

Pos/Neg

Analog Outputs (Optional)

Number of Channels

Resolution

12 bits (1 part in 4096)

±10 V

Voltage Ranges

Throughput

100 k Samples/second

Digital I/O

Number of Ports

Input Levels

Input Current

Output Levels

Source/Sink

8 channels (bits) per port

High Level / Low Level

Vout = High/Low

TTL-compatible

23 mA/1 mA

TTL-compatible

15mA / 12mA

High-Speed Counter

TABLE A.1 Hardware Specifications (Continued)

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PARAMETER

CONDITIONS

SPECIFICATION

Resolution

32-Bit

Number of Channels

Max Input frequency

TTL-level input

2 MHz

TimeBase Generator

Type

Crystal-based

Rate Generator (24-Bit)

2 (1 analog input, 1 analog output)

125 ns

Number

Resolution

Output Frequency Range

Output Levels

0.5 Hz to 1 Mhz

TTL-compatible

Bus Interface

Type

USB

Power

Voltage Range

Current Available(*1)

Current Requirements

USB or External

+5 V

200 mA maximum

<500 mA

USB powered

Physical Characteristics

Size

5.75" D x 7.25" W x 1.60" H

(approximately)

14.61 cm D x 18.42 cm W x 4.06

cm H

Operating Temperature

Range

0 - 50 C

All Specifications are typical at 25 C unless otherwise noted. Note (*1): When powered from an

external source, the on-board power supply circuit can supply up to 200mA at 5VDC to

termination panels through the 50-pin I/O connector.

TABLE A.1 Hardware Specifications (Continued)

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Specifications

A.2 UDAS-1001E-3, UDAS-1001E-4 Dim ensions

UDAS units are housed in standard metal enclosures made of a rugged extruded aluminum base

(connected to chassis ground) with a vinyl-clad steel cover. Interior tracks on side rails hold the

circuit board securely in place. This page provides the dimensions of each unit with the

connectors.

5.750

6.600

FIGURE A.1 Dimensions of the UDAS unit (Top view)

1.520

7.290

FIGURE A.2 Dimensions of the UDAS unit (Rear panel)

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4.700

.525

4-40 FH SCREW

4 PL

1.295

4.700

FIGURE A.3 Dimensions of the UDAS unit (Bottom view)

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Specifications

The dimensions of the UDAS PC board are shown below in FIGURE A.4 Dimensional Drawing of

the UDAS series PCB.

5.305

4.70

6-32 HEX STANDO

TYP, 4 PL

0.21

1.16

4.70

7.02

0.60

MAXIMUM COMPONENT HEIGHT

0.15

FIGURE A.4 Dimensional Drawing of the UDAS series PCB

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A.3 UDAS I/ O Connectors

Signal Name

Single Ended Input Function

Differential Input

Function

AI0

Analog Input Channel 0

Analog Input Channel 1

Analog Input Channel 2

Analog Input Channel 3

Analog Input Channel 4

Analog Input Channel 5

Analog Input Channel 6

Analog Input Channel 7

Analog Input Channel 8

Analog Input Channel 9

Analog Input Channel 10

Analog Input Channel 11

Analog Input Channel 12

Analog Input Channel 13

Analog Input Channel 14

Analog Input Channel 15

Analog Input Channel 0+

Analog Input Channel 1+

Analog Input Channel 2+

Analog Input Channel 3+

Analog Input Channel 4+

Analog Input Channel 5+

Analog Input Channel 6+

Analog Input Channel 7+

Analog Input Channel 0-

Analog Input Channel 1-

Analog Input Channel 2-

Analog Input Channel 3-

Analog Input Channel 4-

Analog Input Channel 5-

Analog Input Channel 6-

Analog Input Channel 7-

AI1

AI2

AI3

AI4

AI5

AI6

AI7

AI8

AI9

AI10

AI11

AI12

AI13

AI14

AI15

Analog Ground

+5V

5V Supply

TABLE A.2 UDAS I/O Connectors

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Specifications

Signal Name

Single Ended Input Function

Differential Input

Function

AO 0

AO 1

Analog Output Channel 0

Digital I/O bit

Digital Port 0 bit 0 27

Digital Port 0 bit 1 28

Digital Port 0 bit 2 29

Digital Port 0 bit 3 30

Digital Port 0 bit 4 31

Digital Port 0 bit 5 32

Digital Port 0 bit 6 33

Digital Port 0 bit 7 34

Digital I/O bit

Digital Port 1 bit 0 35

Digital Port 1 bit 1 36

Digital Port 1 bit 2 37

Digital Port 1 bit 3 38

Digital Port 1 bit 4 39

Digital Port 1 bit 5 40

Digital Port 1 bit 6 41

Digital Port 1 bit 7 42

Digital I/O bit

Counter Clock

Counter Gate

Counter input

Counter gate input

Rate Generator

Out

Analog In or Analog Out

(selectable) Rate Generator

output

TABLE A.2 UDAS I/O Connectors (Continued)

A-8

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Signal Name

Single Ended Input Function

Differential Input

Function

External Input

External Trigger or Pacer input

Digital Ground

Ground

Unused

TABLE A.2 UDAS I/O Connectors (Continued)

A-9

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Ap p e n d ix B

Accessories

This appendix includes information on the termination and mounting accessories that are

available separately from Intelligent Instrumentation for the UDAS unit.

TABLE B.1, Accessories for the UDAS-1001E Series provides the model numbers for the UDAS

units, the cables, and the power adpaters.

UDAS Model #

UDAS-1001-E-1

UDAS-1001-E-2

UDAS-1001E-3

Description

Multi-function USB data acquisition system.

Multi-function USB data acquisition system, with Analog Outputs.

Multi-function USB data acquisition system, with built-in Termina-

tion.

UDAS-1001E-4

Multi-function USB data acquisition system, with built-in Termina-

tion and Analog Outputs.

OEM Versions (Board Only)

UDAS-1001E-1G

UDAS-1001E-2G

Cables

Multi-function USB data acquisition system.

Multi-function USB data acquisition system, with Analog Outputs.

50-pin to standard cables

Cables used to connect the UDAS unit to the termination panel at

your equipment.

USB cable

Connects the UDAS unit to the computer.

UDAS Power Adapters

UDAS-1006A-1

UDAS-1006A-2

5 V DC (110 VAC input)

5 V DC (230 VAC input)

TABLE B.1 Accessories for the UDAS-1001E Series

B-1

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Accessories

B.1 UDAS Term ination Panels

The Termination Panel plugs directly into the I/O connectors of the UDAS unit, providing 32

channels of digital I/O through four screw-type terminal strips. Stand-off nuts on the UDAS unit

secure the termination panel in place.

B.1.1 PCI-20429T-1 Multifunction Te rm ina tion Pa ne l

This termination panel plugs directly into the 50-pin I/O connector of the UDAS unit. Screw

terminals are provided on the panel to interface all analog and digital I/O lines with external

signals or devices. The PCI-20429T-1 secures to the UDAS unit’s back panel using the mounting

screws provided.

PCI-20429T-1

FIGURE B.1 Securing the PCI-20429T-1 to the UDAS unit

Access to all signals on the 50-pin I/O connector, except for +5 V, is provided through four 12-

position terminal blocks. Two of these terminal blocks are used for analog input and output

connections while the other two are used for digital I/O, counter, rate generator out and external

input connections. Screw terminals enable signal wires to be securely fastened to the terminal

blocks.

B-2

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FIGURE B.2, PCI-20429T-1 Multifunction Termination Panel shows the signals assigned to each

terminal block on this panel.

PORT 0: Bit 0 is also high-

speed counter input.

DI0

DI1

AGND

AI8

AGND

AI0

DI4

DI5

PORT 0

PORT 1

AI9

DI2

DI3

DI6

DI7

AI1

AI2

AI10

DGND

DO0

DGND

AI11

AI3

AGND

DO4

D05

DO6

AGND

AI12

AI13

AI4

AI5

AI6

DO1

DO2

DO7

DO3

AI14

AI15

AI7

DGND

AIRG

EXTIN

CTRCLK

AGND

AO0

CTRGATE AGND

CTROUT

AO1

PORTs 0 and 1 on the UDAS-1001-E can be independently

configured for input or output.

The CTRCLK, CTRGATE and CTROUT terminations are not

used (N/C) on the EDAS- 1002-E.

FIGURE B.2 PCI-20429T-1 Multifunction Termination Panel

B-3

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Accessories

B.1.2 UDAS Term ina tion a nd Signa l Conditioning Options

FIGURE B.3, UDAS-1001E Termination Options uses the various UDAS-compatible termination

panels currently available from Intelligent Instrumentation. Also reference FIGURE B.4, UDAS-

1001E Termination Options (continued).

The EDAS-1010T-1 Analog I/O Termination Panels and EDAS-1011T-1 Digital I/O Termination

Panels are designed for ease-of-use with UDAS units.

The PCI-20430A-1 Adapter (available separately) and appropriate cables permit the UDAS unit

to be used with a wide variety of termination products.

FIGURE B.5, Diagram of the PCI-20430A-1’s connectors and cables shows a diagram of the PCI-

20430A-1’s connectors and compatible cables.

ANAL O G T E RM I NAT I O NS :

E D A S -1012A-1, -2

Standard-Density

50 -pin Unshielded

Analog/Digital Cable

E D A S -1012A-3

4 in. interconnect

Analog/Digital Cable

E D A S -1010T -1

Analog I/O Panels

Cascadable, DIN-Rail Mountable

T O U D A S -1001E

I / O C O N N E C T O R

Channels per panel for use

5B Series Signal Conditioning

Isolator blocks, or direct connection.

I/O types can be mixed

Quick Disconnect Screw Terminal

DIGITAL TERMINATIONS:^Connections

E D A S -1013A-1, -2

Connect to 34 -pin expansion

connector on any of the

above panels

Standard-Density

34-pin Unshielded

Digital Cable

E D A S -1013A-3

4 in. interconnect

Digital Cable

E D A S -1011T -1

Digital I/O Panels

Cascadable, DIN-Rail Mountable

Channels per panel for use

with 1100 Series Digital I/O

O p t o -Isolator blocks, or direct

connection. I/O types can be mixed

Quick Disconnect Screw Terminal Connections

FIGURE B.3 UDAS-1001E Termination Options

B-4

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PCI-20305T-1

Digital I/O Customizer Termination Panel

16 Channels

PCI-20324T-1

PCI-20311A-1

Standard-Density

Shielded

Opto-Isolated Digital I/O Panel

8 Channels for use with 1100 Series

Digital Opto-Isolator blocks

Digital Cable

PCI-20326T-1

Opto-Isolated Digital I/O Expander Panel

8 Extra Channels for use with 1100 Series

Digital Opto-Isolator blocks

PCI-20355T-1

Relay Output Panel

16 Outputs

PCI-20361T-1

Opto-Isolated Digital Input Panel

To UDAS unit

16 Inputs

I/O Connectors

PCI-20013A-1

Standard-Density

Ground Plane

Digital Cable

PCI-20018T

Digital Optical Isolation I/O Panel

Screw Terminal Connections

8 Channels for use with 1100 Series

Digital Opto-Isolator blocks

PCI-20048T

Digital Optical Isolation I/O Panel

EDAS-1004T -1

Screw Terminal Connections

16 Extra Channels for use with 1100 Series

Digital Opto-Isolator blocks

PCI-20036A-1

PCI-20061A-1

Standard-Density

Unshielded

Standard-Density

Shielded

Digital Cable

Screw Terminal Connections

PCI-20025T-2

Digital I/O Customizer Panel

Up to 32 Channels

EDAS-1013A-1, -2

Standard-Density

Unshielded

EDAS-1013A-3

4 in. interconnect

Digital Cable

EDAS-1011T-1

Digital I/O Panels

Digital Cable

Cascadable, DIN-Rail Mountable

8 Channels per panel for use

with 1100 Series Digital I/O

Opto-Isolator blocks, or direct

connection. I/O types can be mixed

FIGURE B.4 UDAS-1001E Termination Options (continued)

B-5

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Accessories

Analog In Single-

Ended Function

Analog In

Differential Function

Analog In Single-Ended

and Differential Function

Analog In (+) Chan 0

Analog Ground

Analog In (+) Chan 8

Analog In (+) Chan 9

Analog Ground

Analog In (-) Chan 0

Analog In (-) Chan 1

Analog In (+) Chan 1

Analog In (+) Chan 2

Analog Ground

Analog In (+) Chan 10

Analog In (+) Chan 11

Analog Ground

Analog In (-) Chan 2

Analog In (-) Chan 3

Analog In (+) Chan 3

Analog In (+) Chan 4

Analog Ground

Analog In (+) Chan 12

Analog In (+) Chan 13

Analog Ground

Analog In (-) Chan 4

Analog In (-) Chan 5

Analog In (+) Chan 5

Analog In (+) Chan 6

Analog In (+) Chan 14

Analog In (+) Chan 15

Analog Ground

Analog In (-) Chan 6

Analog In (-) Chan 7

Analog

Outputs

Analog Out Chan 0

Analog In (+) Chan 7

Analog Out Chan 1

+ 5 VDC

+ 5 Volts

No Connection

Digital Ground

No Connection

+ 5 Volts

Port 0: Bit 0 or Counter In

Digital Ground

No Connection

Port 0: Bit 1

No Connection

Port 0: Bit 2

Port 0: Bit 3

Port 0: Bit 4

Port 0: Bit 5

No Connection

Analog Input Rate Generator Out

External Input

No Connection

Port 0: Bit 6

Port 0: Bit 7

Port 1: Bit 0

Port 1: Bit 1

Port 1: Bit 2

Port 1: Bit 3

Port 1: Bit 4

Port 1: Bit 5

Port 1: Bit 6

Digital Ground

No Connection

Port 1: Bit 7

FIGURE B.5 Diagram of the PCI-20430A-1’s connectors and cables

B-6

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B.1.3 Isola tor Blocks

PCI-1100 Series Digita l Opto-Isola tor Blocks

The PCI-1100 Series are digital, optically isolated, signal conditioning blocks. A separate opto-

block is used for each channel, allowing complete I/O flexibility.

The twelve different opto-blocks are divided into two groups: standard and slim-line.

Both standard and slim-line models can be used on EDAS-1011T-1 Panels.

•

Only standard models (PCI-1101 through PCI-1106) can be used with the PCI-20018T-1 and

PCI-20048T-1 termination panels.

•

Only slimline models, PCI-1107 through PCI-1112, can be used with 3U sized termination

panels (PCI-20324T-1 and PCI-20326T-1).

Su m m ary of Featu res

•

All input models accept both AC and DC voltages.

Each provides a TTL output to drive a standard digital input.

Different models are provided for AC and DC outputs.

Units convert TTL outputs from the data acquisition system to switch higher voltage and

current loads.

•

DC output devices present an open collector NPN transistor to the load.

AC output units contain zero crossing circuitry and switch their loads with triacs.

All models provide 4000 V isolation input to output.

Various combinations of the available opto-blocks can be intermixed on one termination panel.

Each contiguous group of eight channels must contain only input or output opto-blocks since the

digital channels on the Digital I/O UDAS are programmable as inputs or outputs in byte-size (8

bits) units.

PCI-1100 Models

Standard/Slimline

Description

PCI-1101/1107

PCI-1102/1108

PCI-1103/1109

PCI-1104/1110

PCI-1105/1111

PCI-1106/1112

AC/DC input (15-32V), TTL out

AC/DC input (90-140V), TTL out

DC output (5 - 60V at 3A), TTL in

AC output (12-140V at 3A), TTL in

AC/DC input (180-280V), TTL out

AC output (24-280V), TTL in

B-7

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Ap p e n d ix C

Analog Input and Output

Calibration Procedures

C.1 UDAS Analog Input Circuit Calibration

Procedures

The analog input section of each UDAS unit is calibrated at the factory prior to shipment. If your

application requires periodic calibration checks or if inaccuracies occur, use the procedures below

to calibrate the UDAS unit. This calibration is accomplished by the adjustment of potentiometers

on the UDAS unit’s printed circuit board.

This calibration procedure requires the utility software provided with the unit, or some other

software such as Visual Designer for displaying the Analog to Digital converter (A/D) results in

counts format and for setting required gains and ranges.

Equipm ent Required:

•

Precision voltmeter accurate to 100µV over a range of ±10 V.

•

Precision voltage calibrator accurate to 1.0µV over a range of ±1 V and accurate to 100µV over

a range of ±10 V.

•

Termination panel for connecting signals and test instruments. A termination panel is built in

to models UDAS-1001E-3 and UDAS-1001E-4.

•

1.4 mm flat-head insulated screwdriver for adjusting potentiometers.

#1 Phillips screwdriver for opening the unit’s case.

USB equipped host computer.

CAUTION:

Static sensitive device warning! To avoid damage to the unit from static electricity,

always use proper static protective procedures (such as use of a grounded wrist

strap) when handling or adjusting this device.

C.1.1 Rem oving the UDAS Unit’s Cover

1. Disconnect the unit from the host computer or any external power supply.

2. Using a #1 Phillips screw driver, remove the two small screws at the far left and right ends of

the unit’s front panel next to the USB and power connectors.

3. Remove the front panel, then slide the case cover towards the front of the unit.

C-1

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Analog Input and Output Calibration Procedures

4. Connect the UDAS to the host computer and allow at least a 15 minute warm-up period before

performing the adjustments.

CAUTION:

The unit may become damaged if you use an uninsulated screwdriver

and accidentally touch other components.

FIGURE C.1 Locations of Potentiometers for Adjusting Analog Circuits on page C-2 shows the

locations of the potentiometers used to adjust the analog circuits on a UDAS unit.

TP21

R24

R25

R26

R36

R38

R39

R40

R46

R45

TP27

R58

FIGURE C.1 Locations of Potentiometers for Adjusting Analog Circuits

C-2

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C.1.2 Ana log Input Ca libra tion Procedure

Calibrating the analog input section requires adjusting the input offset voltage, the ± 10V range,

± 5V range, and the 0 to 10V range. The procedures are listed separately, but should be performed

during a single calibration session.

No t e : The input offset voltage must be adjusted and in specified limits beforethe other

adjustments are performed.

Ad jus t Inp ut Offs et Voltag e

1. Attach the termination panel to 50-pin connector of UDAS, unless the unit has built-in termi-

nation.

2. Ground analog input channel 0 to analog ground, not digital ground, on the termination panel.

3. Connect a precision voltmeter between TP27 and analog ground, TP21.

4. Run a program, such as SYSCHECK, to configure the UDAS for single-ended operation,

bipolar input (±10 V) and a gain of 1.

5. Read the voltage from the voltmeter.

6. Reconfigure the UDAS for a gain of 100. Adjust R58 so that the offset voltage read from the

voltmeter is equal to the voltage read in step 4.

7. Repeat steps 4 and 5 to minimize the offset difference observed between the two gain settings.

The offset difference observed between the two gain settings should be within ±0.5 mV. If pos-

sible, try to achieve less than ±0.2 mV offset difference.

8. Reconfigure the UDAS to a gain of 10 and verify the offset value is less than 0.5 mV different

from the last value read at a gain of 1.

Adjust Offse t a nd Ga in for ± 10Volt Input Ra nge

1. Verify the termination panel is attached to the 50-pin connector of the UDAS device. Begin

with step 2 if the unit has built-in termination.

2. Attach a voltage calibrator to channel 0 with all of the other channels grounded.

3. Run a program, such as SYSCHECK, to configure the UDAS for a range of ±10 V and gain of 1.

4. Set the calibrated input to 0 V, or short channel 0 to analog ground.

5. Set SYSCHECK or other program to average 50 readings. Manually or automatically take

readings repeatedly.

6. Adjust Pot R51 until the software displays 0 V.

C-3

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Analog Input and Output Calibration Procedures

No t e : On all adjustments, there is likely a range of adjustment resulting in the proper

reading. Determine this range and leave the adjustment in the center of the range.

7. Set the calibrated input to 9.5068 V.

8. Adjust Pot R46 for 9.5068 V.

9. Repeat the procedure and verify the adjustments are correct.

No t e : These adjustment steps are interactive and may require several iterations.

10. Set the precision voltage source to -9.95117 V and check for a reading of -9.95117.

No t e : If the value you read is more than 0.039 V different from -9.95117, then the

following Alternate Bipolar Calibration must be used.

Adjust Offse t a nd Ga in for ± 5Volt Input Ra nge

1. Verify the termination panel is connected to a 50-pin connector of the UDAS unit. Begin with

step 2 if the unit has built-in termination.

2. Attach a voltage calibrator to channel 0 with all other channels grounded.

3. Run a program, such as SYSCHECK, to configure the UDAS for a range of ±5 V and gain of 1.

4. Set calibrated input to 0 V, or short channel 0 to analog ground.

5. Set SYSCHECK or other program to average 50 readings. Manually or automatically take

readings repeatedly.

6. Adjust Pot R39 until the software displays 0 V.

No t e : On all adjustments there will be a range of adjustment that results in the proper

reading. Determine this range and leave the adjustment in the center of the range.

7. Set the calibrated input to 4.5734 V.

8. Adjust Pot R40 for 4.5734 V.

C-4

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9. Repeat the procedure and verify the adjustments are correct.

No t e : These adjustment steps are very interactive and may require

several iterations.

Adjust Offse t a nd Ga in for 0 to 10 Volt Ra nge

1. Verify the termination panel is attached to the 50-pin connector of a UDAS unit. Begin with

step 2 if the unit has built-in termination.

2. Attach a voltage calibrator to channel 0 with all of the other channels grounded.

3. Run a program to configure the UDAS for a range of 0-10 V and a gain of 1.

4. Set the calibrated input to 0.02441 V.

5. Set SYSCHECK or other program to average 50 readings. Manually or automatically take

readings repeatedly.

6. Adjust Pot R38 for 0.02441 V.

No t e : On all adjustments there will be a range of adjustment that results in the proper

reading. Determine this range and leave the adjustment in the center of the range.

7. Set the calibrated input to 9.97558 V.

8. Adjust Pot R45 for 9.7558 V.

9. Repeat steps 4 through 8. There will be a very slight interaction in these adjustments.

10. After calibrating the unit, slide the unit’s cover back on and refasten the front panel using the

screws removed earlier.

C-5

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Analog Input and Output Calibration Procedures

C.2 UDAS Analog Output Circuit Calibration

Procedure

This section applies to models UDAS-1001E-2 , UDAS-1 0 0 1 E-2 G, and UDAS-1 0 0 1 E-4 that are

equipped with the analog output feature.

The analog output channels on the UDAS unit are calibrated at the factory. If your application

requires periodic calibration checks or if you suspect inaccuracies, use the following procedures to

calibrate the unit. This calibration is accomplished by adjustment of potentiometers on the unit’s

printed circuit board.

No t e : This calibration procedure requires the utility software provided with the unit, or

some other software such as Visual Designer for setting the Analog Output levels.

Eq u ip m e n t Re q u ire d :

•

Precision Voltmeter accurate to 100 µV over a range of ±10 V.

Termination panel for connecting signals and test instruments.

1.4 mm flat-head insulated screwdriver for adjusting potentiometers.

#1 Phillips screwdriver and a small wrench or nut driver for opening the unit’s case.

USB equipped host computer.

CAUTION:

STATIC SENSITIVE DEVICE WARNING! To avoid damage to the unit from static

electricity, always use proper static protective procedures (such as use of a grounded

wrist strap) when handling or adjusting this device.

Instructions for opening the unit’s case are listed at the beginning of section C.1.1 Removing the

UDAS Unit’s Cover on page C-1.

Connect the UDAS to the host computer and allow at least a 15 minute warm-up period before

making any adjustments. See FIGURE C.1 Locations of Potentiometers for Adjusting Analog

Circuits on page C-2.

CAUTION:

The unit may become damaged if you use an uninsulated screwdriver and accidentally

touch other components.

C-6

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Ana log Output Cha nne l 0 Offse t a nd Ga in

1. Verify the termination panel is attached to a 50-pin connector of a UDAS unit. Begin with step

2 if the unit has built-in termination.

2. Attach a multimeter to analog output channel 0.

3. Use SYSCHECK or other software to set analog output channel 0 to -10.000 V.

4. Adjust Pot R26 for -10.000 V (±0.2 mV).

5. Set analog output channel 0 to 9.9951 V.

6. Adjust Pot R36 for 9.9951 V (±0.2 mV).

7. Repeat these steps to verify the results.

Ana log Output Cha nne l 1 Offse t a nd Ga in

1. Verify the termination panel is attached to a 50-pin connector of a UDAS unit.

2. Attach a multimeter to analog output channel 1.

3. Use SYSCHECK or your calibration software to set analog output channel 1 to -10.000 V.

4. Adjust Pot R24 for -10.000 V (±0.2 mV).

5. Set analog output channel 1 to 9.9951 V.

6. Adjust Pot R25 for 9.9951 V (±0.2 mV).

7. Repeat these steps to verify the results.

C-7

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Index

stopping conversions 1-6

analog input 1-3, 1-4

paced 3-11

test 3-5

high-speed analog input triggering 1-7

rate generator 1-6

termination 1-9

analog output 1-3, 1-8

test 3-6

auto zero mode 1-8

digital I/O 1-8

test 3-10

digital I/O port 1 direction 1-9

dimensions

UDAS pcb A-6

dimensions of UDAS unit 1-10

drivers 2-5

bias resistors 2-4

block diagram, UDAS system 1-2

enabling the CJC circiut 1-9

errors, troubleshooting 3-14

event counter 1-9

cable pinout B-6

calibration

analog input procedure C-3

equipment C-1

CJC circuit 1-9

enabling 2-3

external power supply 1-11

clock generator

clock rate 3-11

configuration

setting for switches 2-2

counter 1-4

event 1-9

test 3-7

features

analog input 1-3

analog output 1-3

counter 1-4

digital input/output 1-4

termination panel 1-4

frequency calculations, counters 1-9

counters 1-9

cover

reinstalling 2-3

removal 2-1, C-1

gate

pin, TTL level 3-7

time 3-9

data acquisition functions

1-4

hardware specifications A-1

hardware-paced analog input 3-11

high-speed

acquisition sample 3-12

analog input mode 1-5

analog input triggering 1-7

analog input 1-4

analog output 1-8

analog output channels 1-8

auto zero 1-8

channel scanner 1-6

counters 1-9

digital I/O 1-8

high-speed analog input mode 1-5

starting and stopping 1-5

jumpers, setting for CJC 1-9

starting conversions 1-5

Index-1

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Index

starting conversions, high-speed analog input

mode 1-5

status LED 2-5

stopping conversions 1-6

switch S1 2-2

switch settings 2-1

SYSCHECK

analog input test 3-5

examples of I/O tests 3-4

installing 3-2

LabView 5.0 support library 1-3

library

LabVIEW Support 1-3

U-Link software for Windows 98 1-3

Visual Designer Support 1-3

library, software support 1-2

load limitations 1-11

low-level drivers, verifying 3-13

operation 3-2

system

check 3-4

number of channels 3-11

error message window 3-13

paced analog input 3-11

pacer rate 3-11

port settings 2-3

power 1-11

LED 3-14

supply, external 1-11

test 3-14

power-on default digital I/O configuration 2-1

program sample files in C 1-3

technical support links 3-15

termination 1-9

built-in 1-4

panel 1-10

thermocouple, connecting channel to 2-4

trigger

analog input, high-speed AI mode 1-7

analog output 1-8

signal 1-7

voltage 1-8

troubleshooting 3-13

troubleshooting errors 3-14

TTL transactions 3-7

sample rate for channels 3-11

setting the configuration, switches 2-2

setting, port 2-3

software

support library 1-2

software support

UDAS

development

device driver 1-3

drivers 3-14

application generator 1-11

diagnostic

series hardware specifications A-1

software support library 1-2

system block diagram 1-2

verifying installation 1-3

UDAS SYSCHECK 1-3, 2-5, 3-1

analog output test 3-6

system requirements 3-2

UDAS unit

UDAS SYSCHECK 1-11

software support library

LabView 5.0 support library 1-3

UDAS device driver 1-3

UDAS SYSCHECK 1-3

U-Link software libraries for Windows 98 1-3

Visual Designer support library 1-3

starting and stopping the high-speed analog

input mode 1-5

configuration 2-1

cover removal 2-1

Index-2

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initial connection 2-5

models 1-1

serial number 3-3

UDAS-1001E-1 1-1

UDAS-1001E-1G 1-1

UDAS-1001E-2 1-1

UDAS-1001E-2G 1-1

UDAS-1001E-3 1-1

UDAS-1001E-4 1-1

U-Link software libraries for Windows 98 1-3

unit info, serial number 3-3

Universal Serial Bus (USB) 1-1

USB cable connections 2-5

verifying

USB port 3-13

Visual Designer

application generator 1-11

support library 1-3

UDAS support library 1-12

wizard, add new hardware 2-5

Index-3

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