Meilhaus Electronic PMD-1008, PMD-1024, PMD-1208, PMD-1608 User guide
RedLab 1208LS
USB-based
Analog and Digital I/O Module
User's Guide
Document Revision 1.4 E, January, 2008
© Copyright 2008, Meilhaus Electronic
Imprint
User’s Guide RedLab® Series
Document Revision 1.4 E
Revision Date: January 2008
Meilhaus Electronic GmbH
Fischerstraße 2
D-82178 Puchheim near Munich, Germany
http://www.meilhaus.de
© Copyright 2008 Meilhaus Electronic GmbH
All rights reserved. No part of this publication may be 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 Meilhaus Electronic GmbH.
Important note:
All the information included in this user’s guide were put together with utmost care and to best
knowledge. However, mistakes may not have been erased completely.
For this reason, the firm Meilhaus Electronic GmbH feels obliged to point out that they cannot be take
on neither any warranty (apart from the claims for warranty as agreed) nor legal responsibility or
liability for consequences caused by incorrect instructions.
We would appreciate it if you inform us about any possible mistakes.
The trademark Personal Measurement Device, TracerDAQ, Universal Library, InstaCal, Harsh
Environment Warranty, Measurement Computing Corporation, and the Measurement Computing logo
are either trademarks or registered trademarks of Measurement Computing Corporation.
Windows, Microsoft, and Visual Studio are either trademarks or registered trademarks of Microsoft
Corporation.
LabVIEW is a trademark of National Instruments.
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XBee is a trademark of MaxStream, Inc.
All other trademarks are the property of their respective owners.
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Table of Contents
Preface
About this User's Guide .......................................................................................................................6
What you will learn from this user's guide .........................................................................................................6
Conventions in this user's guide .........................................................................................................................6
Where to find more information.........................................................................................................................6
Chapter 1
Introducing the RedLab 1208LS ..........................................................................................................7
RedLab 1208LS block diagram..........................................................................................................................8
Software features................................................................................................................................................8
Connecting a RedLab 1208LS to your computer is easy....................................................................................9
Chapter 2
Installing the RedLab 1208LS ............................................................................................................10
What comes with your RedLab 1208LS shipment?..........................................................................................10
Hardware .........................................................................................................................................................................10
Additional documentation................................................................................................................................................10
Unpacking the RedLab 1208LS........................................................................................................................11
Installing the software ......................................................................................................................................11
Installing the hardware .....................................................................................................................................11
Chapter 3
Functional Details ...............................................................................................................................13
Theory of operation - analog input acquisition modes .....................................................................................13
Software paced mode.......................................................................................................................................................13
Continuous scan mode .....................................................................................................................................................13
Burst scan mode...............................................................................................................................................................13
External components ........................................................................................................................................14
USB connector.................................................................................................................................................................14
LED .................................................................................................................................................................................14
Screw terminal wiring......................................................................................................................................................15
Main connector and pin out .............................................................................................................................................16
Analog input terminals (CH0 IN - CH7 IN).....................................................................................................................17
Digital I/O terminals (Port A0 to A7, and Port B0 to B7)................................................................................................19
Power terminals ...............................................................................................................................................................20
Ground terminals .............................................................................................................................................................21
Calibration terminal .........................................................................................................................................................21
Trigger terminal...............................................................................................................................................................21
Counter terminal ..............................................................................................................................................................21
Accuracy...........................................................................................................................................................21
RedLab 1208LS channel gain queue feature ....................................................................................................24
Chapter 4
Specifications......................................................................................................................................26
Analog output ...................................................................................................................................................27
Digital input/output...........................................................................................................................................28
External trigger.................................................................................................................................................28
Counter .............................................................................................................................................................28
Non-volatile memory........................................................................................................................................28
Power................................................................................................................................................................29
General .............................................................................................................................................................29
Environmental ..................................................................................................................................................29
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RedLab 1208LS User's Guide
Mechanical .......................................................................................................................................................29
Main connector and pin out..............................................................................................................................29
4-channel differential mode .............................................................................................................................................30
8-channel single-ended mode...........................................................................................................................................30
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Preface
About this User's Guide
What you will learn from this user's guide
This user's guide explains how to install, configure, and use the RedLab 1208LS so that you get the most out of
its USB data acquisition features.
This user's guide also refers you to related documents available on our web site, and to technical support
resources that can also help you get the most out of the RedLab 1208LS.
Conventions in this user's guide
For more information on …
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.
<#:#> Angle brackets that enclose numbers separated by a colon signify a range of numbers, such as those assigned
to registers, bit settings, etc.
bold text Bold text is used for the names of objects on the screen, such as buttons, text boxes, and check boxes. For
example:
1. Insert the disk or CD and click the OK button.
italic text Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase. For
example:
The InstaCal installation procedure is explained in the Quick Start Guide.
Never touch the exposed pins or circuit connections on the board.
Where to find more information
The following electronic documents provide helpful information relevant to the operation of the RedLab
1208LS.
The Quick Start Guide is available on our RedLab CD in the root directory.
The Guide to Signal Connections is available on our RedLab CD under „ICalUL\Documents“.
The Universal Library User's Guide is available on our RedLab CD under „ICalUL\Documents“.
The Universal Library Function Reference is available on our RedLab CD under „ICalUL\Documents“.
The Universal Library for LabVIEW™ User’s Guide is available on our RedLab CD under
„ICalUL\Documents“.
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Chapter 1
Introducing the RedLab 1208LS
This user's guide contains all of the information you need to connect the RedLab 1208LS to your computer and
to the signals you want to measure.
The RedLab 1208LS is a USB 1.1 low-speed device supported under popular Microsoft
systems. It is designed for USB 1.1 ports, and was tested for full compatibility with both USB 1.1 and USB 2.0
ports.
The RedLab 1208LS features eight analog inputs, two 10-bit analog outputs, 16 digital I/O connections, and one
32-bit external event counter. The RedLab 1208LS is powered by the +5 volt USB supply from your computer.
No external power is required.
The RedLab 1208LS analog inputs are software configurable for either eight 11-bit single-ended inputs, or four
12-bit differential inputs. An on-board industry standard 82C55 programmable peripheral interface chip
provides the 16 digital I/O lines in two 8-bit ports. You can configure each digital port independently for either
input or output.
The RedLab 1208LS is shown in Figure 1. I/O connections are made to the screw terminals located along each
side of the RedLab 1208LS.
®
Windows® operating
Figure 1. RedLab 1208LS
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RedLab 1208LS User's Guide Introducing the RedLab 1208LS
RedLab 1208LS block diagram
RedLab 1208LS functions are illustrated in the block diagram shown here.
USB1.1
Compliant
Interface
USB
Microcontroller
82C55 DIO
PortAPort
B
8 8
Screw terminal I/O connector
Analog Input
8 SE (
4 Diff. (
11-bit ) channels
12-bit ) channels
Analog Output
10-bit
2 channels
Event Counter
1 channel
or
32-bit
8
2
1
Figure 2. RedLab 1208LS Functional block diagram
Software features
For information on the features of InstaCal and the other software included with your RedLab 1208LS, refer to
the Quick Start Guide that shipped with your device. The Quick Start Guide is also available in PDF on our
RedLab CD (root directory).
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RedLab 1208LS User's Guide Introducing the RedLab 1208LS
Connecting a RedLab 1208LS to your computer is easy
Installing a data acquisition device has never been easier.
The RedLab 1208LS relies upon the Microsoft Human Interface Device (HID) class drivers. The HID class
drivers ship with every copy of Windows that is designed to work with USB ports. We use the Microsoft
HID because it is a standard, and its performance delivers full control and maximizes data transfer rates for
your RedLab 1208LS. No third-party device driver is required.
The RedLab 1208LS is plug-and-play. There are no jumpers to position, DIP switches to set, or interrupts
to configure.
You can connect the RedLab 1208LS before or after you install the software, and without powering down
your computer first. When you connect an HID to your system, your computer automatically detects it and
configures the necessary software. You can connect and power multiple HID peripherals to your system
using a USB hub.
You can connect your system to various devices using a standard four-wire cable. The USB connector
replaces the serial and parallel port connectors with one standardized plug and port combination.
You do not need a separate power supply module. The USB automatically delivers the electrical power
required by each peripheral connected to your system.
Data can flow two ways between a computer and peripheral over USB connections.
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Installing the RedLab 1208LS
What comes with your RedLab 1208LS shipment?
As you unpack your RedLab 1208LS, verify that the following components are included.
Hardware
RedLab 1208LS
Chapter 2
USB cable (2 meter length)
Additional documentation
In addition to this hardware user's guide, you should also receive the Quick Start Guide (available on our
RedLab CD (root directory)). This booklet supplies a brief description of the software you received with your
RedLab 1208LS and information regarding installation of that software. Please read this booklet completely
before installing any software or hardware.
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