RedLab 1024LS USB-based Digital I/O Module User's Guide Document Revision 1.
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.
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 ...
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 1024LS so that you get the most out of its USB digital I/O features. This user's guide also refers you to related documents available on our web site, and to technical support resources.
Chapter 1 Introducing the RedLab 1024LS This user's guide contains all of the information you need to connect the RedLab 1024LS measurement and automation device to your computer and to other data acquisition hardware. The RedLab 1024LS is a USB 1.1 low-speed module supported under popular Microsoft® Windows® operating 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.
RedLab 1024LS User's Guide Introducing the RedLab 1024LS RedLab 1024LS block diagram RedLab 1024LS functions are illustrated in the block diagram shown here. USB 1.1 Compliant Interface USB Microcontroller 82C55 DIO Port Port Port Port A B C HI C LO 8 8 4 32-bit Event Counter 1 channel 4 1 Screw terminal I/O connector Figure 2.
RedLab 1024LS User's Guide Introducing the RedLab 1024LS Connecting a RedLab 1024LS to your computer is easy Installing a data acquisition device has never been easier. The RedLab 1024LS 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 1024LS.
Chapter 2 Installing the RedLab 1024LS What comes with your RedLab 1024LS shipment? The following items are shipped with the RedLab 1024LS: Hardware RedLab 1024LS 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 1024LS and information regarding installation of that software.
RedLab 1024LS User's Guide Installing the RedLab 1024LS Unpacking the RedLab 1024LS As with any electronic device, you should take care while handling to avoid damage from static electricity. Before removing the RedLab 1024LS 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. If your RedLab 1024LS is damaged, notify Measurement Computing Corporation immediately by phone, fax, or e-mail.
RedLab 1024LS User's Guide Installing the RedLab 1024LS If the LED turns off If the LED is illuminated but then turns off, the computer has lost communication with the RedLab 1024LS. To restore communication, disconnect the USB cable from the computer, and then reconnect it. This action should restore communication, at which time the LED will turn on.
Chapter 3 Functional Details External components The RedLab 1024LS has the following external components, as shown in Figure 3. USB connector LED Screw terminal banks (2) LED Screw terminal Pins 1 to 20 Screw terminal Pins 21 to 40 USB Connector / cable Figure 3. RedLab 1024LS external components USB connector The USB connector is on the right side of the RedLab 1024LS housing. This connector provides +5 V power and communication.
RedLab 1024LS User's Guide Functional Details Screw terminal wiring The RedLab 1024LS has two rows of screw terminals – one row on the top edge of the housing, and one row on the bottom edge. Each screw terminal bank provides 20 connections. Pin numbers are identified in Figure 4. Pin 20 Pin 1 Pin 40 Pin 21 Figure 4.
RedLab 1024LS User's Guide Functional Details Main connector and pin out Screw Terminal 16 AWG to 30 AWG GND Port B7 Port B6 Port B5 Port B4 Port B3 Port B2 Port B1 Port B0 GND PC+5V GND Port A7 Port A6 Port A5 Port A4 Port A3 Port A2 Port A1 Port A0 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 CTR GND n/c GND n/c GND n/c n/c GND n/c n/c GND Port C7 Port C6 Port C5 Port C4 Port C3 Port C2 Port C1 Port C0 Connector type Wire gauge range
RedLab 1024LS User's Guide Functional Details Port A0 +GND +5V Figure 6. Schematic showing switch detection by digital channel Port A0 For more information on digital signal connections For more information on digital signal connections and digital I/O techniques, refer to the Guide to Signal Connections (available on our RedLab CD (root directory). Power terminals The PC +5 V connection (pin 30) is on the bottom screw terminal of the RedLab 1024LS.
RedLab 1024LS User's Guide Functional Details Ground terminals The 8 ground (GND) connections are identical, and provide a common ground for all RedLab 1024LS functions. Refer to the pinout diagram on page 3-14 for the location of the GND terminal pins. Counter terminal Pin 20 (CTR) is the input to the 32-bit external event counter. Refer to the pinout diagram on page 14 for the location of this pin. The internal counter increments when the TTL levels transition from low to high.
Chapter 4 Specifications Typical for 25 °C unless otherwise specified. Specifications in italic text are guaranteed by design. Digital input / output Table 1. Digital I/O specifications Digital type Number of I/O Configuration Pull up/pull-down configuration Input high voltage Input low voltage Output high voltage (IOH = -2.5 mA) Output low voltage (IOH = -2.
RedLab 1024LS User's Guide Specifications Note 2: Self-powered refers to USB hubs and hosts with a power supply. Bus-powered refers to USB hubs and hosts without their own power supply. Note 3: This refers to the total amount of current that can be sourced from the USB +5V and digital outputs. General Table 4. General specifications Parameter Conditions Specification USB controller clock error 25 °C 0 to 70 °C ±30 ppm max ±50 ppm max USB 1.1 low-speed USB 1.1, USB 2.
RedLab 1024LS User's Guide Specifications Main connector and pin out Table 7. Connector specifications Connector type Wire gauge range Screw terminal 30-16 AWG Table 8.
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