Measurement Computing USB-1808-OEM Bedienungsanleitung

USB-1808-OEM

Eight-Channel Simultaneous-Sampling Multifunction Device

User's Guide

May 2019. Rev 4

HM USB-1808-OEM.docx

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reproduced, stored in a retrieval system, or transmitted, in any form by any means, electronic, mechanical, by

photocopying, recording, or otherwise without the prior written permission of Measurement Computing

Corporation.

Notice

Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for

use in life support systems and/or devices without prior written consent from Measurement Computing

Corporation. Life support devices/systems are devices or systems that, a) are intended for surgical implantation

into the body, or b) support or sustain life and whose failure to perform can be reasonably expected to result in

injury. Measurement Computing Corporation products are not designed with the components required, and are

not subject to the testing required to ensure a level of reliability suitable for the treatment and diagnosis of

people.

Table of Contents

Preface

About this User's Guide .......................................................................................................................5

What you will learn from this user's guide .........................................................................................................5

Conventions in this user's guide .........................................................................................................................5

Where to find more information .........................................................................................................................5

Chapter 1

Introducing the USB-1808-OEM...........................................................................................................6

Functional block diagram ...................................................................................................................................6

Chapter 2

Installing the USB-1808-OEM...............................................................................................................7

Unpacking...........................................................................................................................................................7

Installing the software ........................................................................................................................................7

Installing the hardware .......................................................................................................................................7

Calibrating the hardware.....................................................................................................................................7

Updating firmware..............................................................................................................................................7

Chapter 3

Functional Details .................................................................................................................................8

Board components ..............................................................................................................................................8

USB connector.................................................................................................................................................................. 8

Header connectors............................................................................................................................................................. 9

LEDs ................................................................................................................................................................................10

Analog input .....................................................................................................................................................10

Channel-Gain queue ........................................................................................................................................................11

Analog output ...................................................................................................................................................11

Digital I/O.........................................................................................................................................................11

Digital input scanning......................................................................................................................................................11

Pull-up/down configuration .............................................................................................................................................12

Counter input ....................................................................................................................................................13

Totalize counter mode......................................................................................................................................................13

Period measurement mode...............................................................................................................................................13

Pulse width measurement mode.......................................................................................................................................13

Quadrature encoder input .................................................................................................................................14

Timer output .....................................................................................................................................................14

Synchronous I/O – mixing analog, digital, and counter scanning ....................................................................15

Clock I/O ..........................................................................................................................................................15

Digital triggering ..............................................................................................................................................15

Pattern triggering ..............................................................................................................................................15

Mask option .....................................................................................................................................................................15

Ground..............................................................................................................................................................16

Power output.....................................................................................................................................................16

Mechanical drawings........................................................................................................................................17

Chapter 4

Specifications......................................................................................................................................18

Analog input .....................................................................................................................................................18

Accuracy...........................................................................................................................................................19

Analog input DC voltage measurement accuracy ............................................................................................................19

Dynamic performance......................................................................................................................................................19

USB-1808-OEM User's Guide

Noise performance ...........................................................................................................................................................19

Analog output ...................................................................................................................................................20

Analog input/output calibration........................................................................................................................21

Digital input/output...........................................................................................................................................21

Counter .............................................................................................................................................................22

Quadrature inputs.............................................................................................................................................................22

Timer ................................................................................................................................................................23

External clock input/output...............................................................................................................................23

External trigger .................................................................................................................................................24

Pattern trigger ...................................................................................................................................................24

Memory ............................................................................................................................................................24

Power ................................................................................................................................................................24

USB ..................................................................................................................................................................25

Environmental ..................................................................................................................................................25

Mechanical .......................................................................................................................................................25

Header connector..............................................................................................................................................25

Differential mode pinout..................................................................................................................................................26

Single-ended mode pinout ...............................................................................................................................................27

EU Declaration of Conformity............................................................................................................28

Preface

About this User's Guide

What you will learn from this user's guide

This user's guide describes the Measurement Computing USB-1808-OEM data acquisition device and lists

device specifications.

Conventions in this user's guide

For more information

Text presented in a box signifies additional information and helpful hints related to the subject matter you are

reading.

Caution! Shaded caution statements present information to help you avoid injuring yourself and others,

damaging your hardware, or losing your data.

Bold text is used for the names of objects on a screen, such as buttons, text boxes, and checkboxes.

Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase.

Where to find more information

Additional information about USB-1808-OEM hardware is available on our website at www.mccdaq.com. You

can also contact Measurement Computing Corporation with specific questions.

Knowledgebase: kb.mccdaq.com

Tech support form: www.mccdaq.com/support/support_form.aspx

Email: techsupport@mccdaq.com

Phone: 508-946-5100 and follow the instructions for reaching Tech Support

For international customers, contact your local distributor. Refer to the International Distributors section on our

web site at www.mccdaq.com/International.

Chapter 1

Introducing the USB-1808-OEM

The USB-1808-OEM is a multifunction data acquisition device providing the following features:

Eight 18-bit simultaneous-sampling differential (DIFF) or single-ended (SE) analog input channels –

software-selectable per channel as DIFF or SE

Sample rate of 50 kS/s per channel maximum

Analog input ranges of ±10 V, ±5 V, 0 V to 10 V, and 0 V to 5 V – software-selectable per channel

Two 16-bit analog outputs

Four individually-configurable digital I/O channels

Two high-speed general-purpose counters

Two quadrature encoder inputs

Two timer outputs

One external digital trigger for data acquisition and one external digital trigger for data generation

Two external clock inputs and two clock outputs for synchronous input and output operations with more

than one device.

Header connectors for field wiring connections

The device is powered by the +5 V USB supply from the computer, requiring no external power.

The USB-1808-OEM is a USB 2.0 high-speed device that is fully compatible with both USB 1.1, USB 2.0, and

USB 3.0 ports.

Functional block diagram

USB-1808-OEM functions are illustrated in the block diagram shown here.

Figure 1. Functional block diagram

Chapter 2

Installing the USB-1808-OEM

Unpacking

As with any electronic device, you should take care while handling to avoid damage from static

electricity. Before removing the device from its packaging, ground yourself using a wrist strap or by simply

touching the computer chassis or other grounded object to eliminate any stored static charge.

Installing the software

Refer to the USB-1808-OEM product page on our website for information about the software supported by the

USB-1808-OEM.

Install the software before you install your device

The driver needed to run the USB-1808-OEM is installed with the software. Therefore, you need to install the

software package you plan to use before you install the hardware.

Installing the hardware

To connect the USB-1808-OEM to your system, connect the USB cable to an available USB port on the

computer or to an external USB hub connected to the computer. Connect the other end of the USB cable to the

USB connector on the device. No external power is required.

When connected for the first time, a Found New Hardware dialog opens when the operating system detects the

device. When the dialog closes, the installation is complete. The Status LED on the USB-1808-OEM turns on

after the device is successfully installed.

If the Status LED turns off

If communication is lost between the device and the computer, the device LED turns off. To restore

communication, disconnect the USB cable from the computer and then reconnect it. This should restore

communication, and the LED should turn on.

Calibrating the hardware

The Measurement Computing Manufacturing Test department performs the initial factory calibration. Return

the device to Measurement Computing Corporation when calibration is required. The recommended calibration

interval is one year.

Updating firmware

Your DAQ device contains firmware that can be updated in the field if required. Firmware is available for

download at www.mccdaq.com/firmware.aspx. MCC recommends that you check this page periodically to see

if an update to your device firmware is available.

Chapter 3

Functional Details

Board components

USB-1808-OEM has the following components, as shown in Figure 2:

Header connectors (2)

Pull-up/down jumper

LED indicators (2)

USB connector

Figure 2. USB-1808-OEM components

Header connector pins 1 to 28

LED indicators (2)

Header connector pins 29 to 56

USB connector

Pull-up/down jumper DIO

USB connector

The USB connector provides +5 V power and communication. No external power supply is required.

USB-1808-OEM User's Guide Functional Details

Header connectors

The header connectors provide the following connections:

Eight DIFF analog inputs (CH0H/CH0L to CH7H/CH7L) or eight SE analog inputs (CH0Hto CH7H)

Refer to pages 9 and 10 for DIFF and SE pinouts.

Two analog outputs (AOUT0and AOUT1)

Four digital I/O lines (DIO0 to DIO3)

Two general-purpose counter inputs (CTR0and CTR1)

Two quadrature encoder inputs (ENC0A, ENC0B, ENC0Z and ENC1A, ENC1B, ENC1Z)

Two timer outputs (TMR0 and TMR1)

An external trigger input (ITRIG)and an external trigger output OTRIG)

Two external clock inputs (ICLKI and OCLKI) and two external clock outputs (ICLKO, OCLKO)

One +5 V power output (+VO) connection

Ten analog ground (AGND) and seven digital ground (GND) connections

The USB-1808-OEM pinouts are shown below. Refer to Figure 2 on page 8.

Differential mode pinout

Pin Terminal

Label

Use

Label

Use

CH0H

AI channel 0 HI

CH7L

AI channel 7 LO

CH0L

AI channel 0 LO

CH7H

AI channel 7 HI

AGND

Analog ground

AGND

Analog ground

CH1H

AI channel 1 HI

CH6L

AI channel 6 LO

CH1L

AI channel 1 LO

CH6H

AI channel 6 HI

AGND

Analog ground

AGND

Analog ground

CH2H

AI channel 2 HI

CH5L

AI channel 5 LO

CH2L

AI channel 2 LO

CH5H

AI channel 5 HI

AGND

Analog ground

AGND

Analog ground

CH3H

AI channel 3 HI

CH4L

AI channel 4 LO

CH3L

AI channel 3 LO

CH4H

AI channel 4 HI

12 AGND Analog ground 40 AGND Analog ground

+VO

+5V power output

AOUT0

AO channel 0

AGND

Analog ground

AOUT1

AO channel 1

GND

Digital Ground

AGND

Analog ground

TMR0

Timer 0 output

GND

Digital Ground

TMR1

Timer 1 output

DIO0

DIO channel 0

ICLKO

Input scan clock output

DIO1

DIO channel 1

OCLKO

Output scan clock output

GND

Digital Ground

GND

Digital ground

DIO2

DIO channel 2

ICLKI

Input scan clock input

DIO3

DIO channel 3

OCLKI

Output scan clock input

GND

Digital Ground

ITRIG

Input Trigger

CTR0

Counter 0 input

OTRIG

Output Trigger

CTR1

Counter 1 input

GND

Digital ground

GND

Digital ground

ENC1A

Encoder 1 Input A

ENC0A

Encoder 0 Input A

ENC1B

Encoder 1 Input B

ENC0B

Encoder 0 Input B

ENC1Z

Encoder 1 Input Z

ENC0Z

Encoder 0 Input Z

USB-1808-OEM User's Guide Functional Details

Single-ended mode pinout

Terminal Terminal

Label

Use

Label

Use

CH0H

AI channel 0 HI

No connection

CH7H

AI channel 7 HI

AGND

Analog ground

AGND

Analog ground

CH1H

AI channel 1 HI

No connection

CH6H

AI channel 6 HI

AGND

Analog ground

AGND

Analog ground

CH2H

AI channel 2 HI

No connection

CH5H

AI channel 5 HI

AGND

Analog ground

AGND

Analog ground

CH3H

AI channel 3 HI

No connection

CH4H

AI channel 4 HI

AGND

Analog ground

AGND

Analog ground

+VO

+5V power output

AOUT0

AO channel 0

AGND

Analog ground

AOUT1

AO channel 1

GND

Digital Ground

AGND

Analog ground

TMR0

Timer 0 output

GND

Digital Ground

TMR1

Timer 1 output

DIO0

DIO channel 0

ICLKO

Input scan clock output

DIO1

DIO channel 1

OCLKO

Output scan clock output

GND

Digital Ground

GND

Digital ground

DIO2

DIO channel 2

ICLKI

Input scan clock input

DIO3

DIO channel 3

OCLKI

Output scan clock input

GND

Digital Ground

ITRIG

Input Trigger

CTR0

Counter 0 input

OTRIG

Output Trigger

CTR1

Counter 1 input

GND

Digital ground

GND

Digital ground

26 ENC1A Encoder 1 Input A 54 ENC0A Encoder 0 Input A

ENC1B

Encoder 1 Input B

ENC0B

Encoder 0 Input B

ENC1Z

Encoder 1 Input Z

ENC0Z

Encoder 0 Input Z

LEDs

The USB-1808-OEM has two LED indicators that indicate the status of power and data. The LEDs are stacked

one above the other (see Figure 2 on page 8).

The Status LED turns on when the device is detected by the computer.

The Activity LED blinks when data is transferred and is off otherwise.

Analog input

You can configure each analog input channel for either SE or DIFF mode. MCC recommends connecting

unused analog input terminals to analog ground terminals during operation. For example, if you are not using

CH7L, connect this terminal to an available AGND terminal.

The input voltage range is software-selectable per channel for ±10 V, ±5 V, 0 V to 10 V, or 0 V to 5 V.

Analog input operations can be paced by the internal clock or by an external clock (ICLKI – refer to Clock I/O

on page 15). They can be initiated by a digital trigger (Digital triggering on page 15) or a pattern trigger

(Pattern triggering on page 15).

Refer to Synchronous I/O – mixing analog, digital, and counter scanning on page 15 for information on running

analog input scans at the same time as other subsystem scans.

For more information about analog signal connections

For more information about analog input connections, refer to the Guide to DAQ Signal Connections (available

for download at www.mccdaq.com/support/DAQ-Signal-Connections.aspx).

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