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Data Translation DT9820 Series Getting Started Manual

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UM-18219-B
DT9820 Series
Getting Started Manual

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  • Page 1 UM-18219-B DT9820 Series Getting Started Manual...
  • Page 2 Second Edition Copyright © 2001, 2002 by Data Translation, March, 2002 Inc. 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 Data Translation, Inc.

  • Page 3: Table Of Contents

    DT9820 Series Key Hardware Features..... . DT9820 Series Software ........
  • Page 4 Contents Chapter 5: Configuring and Attaching the Screw Terminal Panel ........Configuring the STP9820.

  • Page 5: About This Manual

    About this Manual This manual describes how to install and set up your DT9820 Series function module and DT9820 Series device driver, and verify that your module is working properly. Intended Audience This document is intended for engineers, scientists, technicians, or others responsible for installing and setting up DT9820 Series function modules to perform data acquisition operations.

  • Page 6: Conventions Used In This Manual

    DT9820 Series function module. • Chapter “Verifying the Operation of a Function Module,” describes how to verify the operation of a DT9820 Series function module with the Quick Data Acq application. • An index completes this manual. Conventions Used in this Manual The following conventions are used in this manual: •...
  • Page 7 About this Manual • DT9820 Series User’s Manual (UM-18221), included on the Data Acquisition OMNI CD provided with the DT9820 Series function module. This manual describes the features of the DT9820 Series function modules and the DT9820 Series Device Driver in detail.

  • Page 8: Where To Get Help

    About this Manual Where To Get Help Should you run into problems installing or using a DT9820 Series function module, our Technical Support Department is available to provide technical assistance. Refer to the DT9820 Series User’s Manual for information on how to contact the Technical Support Department...

  • Page 9: Chapter 1: Overview

    DT9820 Series Key Hardware Features..... . DT9820 Series Software ........

  • Page 10: Dt9820 Series Key Hardware Features

    Chapter 1 DT9820 Series Key Hardware Features The DT9820 Series includes the DT9821 and DT9822 function modules. Table 1 lists the key features of each module. Table 1: Key Features Among the DT9820 Series Analog Input Sample Rate Function # of Analog...

  • Page 11: Dt9820 Series Software

    Acquisition OMNI CD, includes the following software components: • DT9820 Series Device Driver − This software must be installed and loaded before you can use a DT9820 Series module with any of the supported software packages or utilities. • DT9820 Series Calibration Utility − Allows you to calibrate the analog output circuitry of the DT9822 function modules.

  • Page 12: Getting Started Procedure

    The flow diagram shown in Figure 1 illustrates the steps needed to get started using the DT9820 Series function modules. This diagram is repeated in each chapter; the shaded area in the diagram shows you where you are in the getting started procedure.

  • Page 13: Chapter 2: Preparing To Use A Function Module

    Installing the Software........Viewing the DT9820 Series Documentation Online ..
  • Page 14 Chapter 2 Prepare to Use a Function Module (this chapter) Install the Function Module (see Chapter 3 starting on page Configure the Device Driver (see Chapter 4 starting on page Configure and Attach the Screw Terminal Panel (see Chapter 5 starting on page Wire Signals (see Chapter 6 starting on page...

  • Page 15: Unpacking

    • EP310 USB cable, and • Data Acquisition OMNI CD-ROM. If an item is missing or damaged, contact Data Translation. If you are in the United States, call the Customer Service Department at (508) 481-3700. An application engineer will guide you through the appropriate steps for replacing missing or damaged items.

  • Page 16: Checking The System Requirements

    Chapter 2 Checking the System Requirements For reliable operation, your DT9820 Series function modules require the minimum system requirement listed in Table Table 2: Minimum System Requirements Feature Minimum Requirements Operating System Windows 98, Windows Me, Windows 2000, or Windows XP...

  • Page 17: Installing The Software

    WDM-compliant device drivers and DLLs (version 5.0 or greater). Other Data Translation boards/modules may not provide WDM-compliant drivers. You cannot use a DT9820 Series module at the same time as another Data Translation board/module unless both devices provide WDM-compliant drivers.
  • Page 18 Chapter 2 Select DT9820 Series, then click Next. You are prompted for the program folder name. 10. Either change the program folder name or accept the default program folder name, then click Next. The files are copied to the destination directory.

  • Page 19: Viewing The Dt9820 Series Documentation Online

    Preparing to Use a Function Module Viewing the DT9820 Series Documentation Online Once you have installed the DT9820 Series software, you can view the DT9820 Series documentation by clicking the manual title. You can access the manuals from the Data Translation, Inc\DT9820 Series program group.
  • Page 20 Chapter 2...

  • Page 21: Chapter 3: Installing A Function Module

    Installing a Function Module Connecting Directly to the Host Computer ....Connecting to a Self-Powered USB Hub....
  • Page 22 Chapter 3 Prepare to Use a Function Module (see Chapter 2 starting on page Install the Function Module (this chapter) Configure the Device Driver (see Chapter 4 starting on page Configure and Attach the Screw Terminal Panel (see Chapter 5 starting on page Wire Signals (see Chapter 6 starting on page...
  • Page 23 Installing a Function Module You can attach a DT9820 Series module to the host computer in one of two ways: • Connect directly to a USB port of the host computer, described on page 16. Use this method if one or two DT9820 Series function modules are sufficient for your application.

  • Page 24: Connecting Directly To The Host Computer

    DT9820 Series function module to the host computer, if desired. If you have not yet installed the DT9820 Series Device Driver, the New Hardware Found wizard appears. Click Next to have the wizard search for the DT9820 Series Device Driver, then proceed to step 4.
  • Page 25 A New Hardware Found dialog box appears indicating that Windows is installing the driver for the USB device. Repeat the steps 1 to 2 to attach another DT9820 Series function module to the host computer, if desired. Note: You can unplug a module, then plug it in again, if you wish, without causing damage.

  • Page 26: Connecting To A Self-Powered Usb Hub

    To connect a DT9820 Series function module to a self-powered USB hub, perform the following steps: Attach one end of the EP310 cable to the DT9820 Series module and the other end of the EP310 cable to a self-powered USB hub.
  • Page 27 (up to five) and function modules (up to four per hub) that you desire. If you have not yet installed the DT9820 Series Device Driver, the New Hardware Found wizard appears. Click Next to have the wizard search for the DT9820 Series Device Driver.
  • Page 28 Function Module Function Module EP310 Cables Figure 3: Attaching DT9820 Series Function Modules to the Host Computer Using Self-Powered USB Hubs Note: You can unplug a module, then plug it in again, if you wish, without causing damage. This process is called hot-swapping.

  • Page 29: Chapter 4: Configuring The Device Driver

    Configuring the Device Driver...
  • Page 30 Chapter 4 Prepare to Use a Function Module (see Chapter 2 starting on page Install the Function Module (see Chapter 3 starting on page Configure the Device Driver (this chapter) Configure and Attach the Screw Terminal Panel (see Chapter 5 starting on page Wire Signals (see Chapter 6 starting on page...
  • Page 31 (This is the default configuration.) Bias return termination resistance is particularly useful when your differential source is floating. Select whether the DT9820 Series module will be used in 60 Hz operations (the default), or 50 Hz operations (used primarily in Europe).
  • Page 32 Chapter 4 If you want to rename the function module, click Edit Name; otherwise, go to step 10. Enter a new name for the function module, then click OK. Note: This name is used to identify the module in all subsequent applications.

  • Page 33: Terminal Panel

    Configuring and Attaching the Screw Terminal Panel Configuring the STP9820....... . . Attaching the STP9820.
  • Page 34 Chapter 5 Prepare to Use a Function Module (see Chapter 2 starting on page Install the Function Module (see Chapter 3 starting on page Configure the Device Driver (see Chapter 4 starting on page Configure and Attach the Screw Terminal Panel (this chapter) Wire Signals (see...
  • Page 35 Configuring and Attaching the Screw Terminal Panel Before you can wire signals to a DT9820 Series module, you first need to configure the STP9820 screw terminal panel, then attach the STP9820 to the DT9820 Series module. Refer to Figure 4 for an illustration of the STP9820.

  • Page 36: Configuring The Stp9820

    Changing the Input Filter Cutoff Frequency By default, the DT9820 Series modules use dual RC low-pass input filters for each analog input channel with a cutoff frequency of 100 Hz. Through software, you can turn these input filters on or off;...
  • Page 37 1500 ohms is the resistor value that is used, by default, on the DT9820 Series modules. 0.000001 F is the capacitor value that is used, by default, on the DT9820 Series modules. Note: Decreasing the cutoff frequency also decreases the noise rejection.

  • Page 38: Installing A Relay Driver For The Digital Output Lines

    The STP9820 allows you to install a Toshiba TD62083AP (or equivalent) relay driver for use with the digital output lines on the DT9820 Series module. This driver, which works only with TTL digital output lines, allows the digital output lines of the DT9820 Series board to drive most commercially available +5 V relays with up to 100 mA of current and +5 V of user-supplied power.
  • Page 39 Solder the relay driver in location U1 on the STP9820 while observing the correct polarity. Continue with the next section to attach the STP9820 screw terminal panel to a DT9820 Series module. Note: Refer to page 47 for information on how to connect relays to...

  • Page 40: Attaching The Stp9820

    Attaching the STP9820 You can connect the STP9820 directly to the J1 connector on your DT9820 Series function module, or you can connect the STP9820 to the DT9820 Series module using the EP777 cable, which is available from Data Translation.
  • Page 41 Configuring and Attaching the Screw Terminal Panel Table 5: Pin Assignments for Connector J1 on the DT9820 Series Function Modules and on the STP9820 Screw Terminal Pan el Number Signal Description Number Signal Description Isolated Digital Ground Digital Output Line 3...
  • Page 42 +5 V output is available only when one of the subsystems is activated, which, in turn, activates power to the module. You can externally power the +5 V isolated output signal. This allows you to retain the last value that was written to the digital output lines when the DT9820 Series module is in low-power mode.

  • Page 43: Chapter 6: Wiring Signals

    Wiring Signals Preparing to Wire Signals ....... . Connecting Analog Input Signals ......Connecting Analog Output Signals.
  • Page 44 Chapter 6 Prepare to Use a Function Module (see Chapter 2 starting on page Install the Function Module (see Chapter 3 starting on page Configure the Device Driver (see Chapter 4 starting on page Configure and Attach the Screw Terminal Panel (see Chapter 5 starting on page Wire Signals...

  • Page 45: Preparing To Wire Signals

    • Separate power and signal lines by using physically different wiring paths or conduits. • To avoid noise, do not locate the DT9820 Series function modules and cabling next to sources that produce high electromagnetic fields, such as large electric motors, power lines, solenoids, and electric arcs, unless the signals are enclosed in a mumetal shield.
  • Page 46 Chapter 6 − Then, run the Quick Data Acq application (described in Chapter 7 starting on page 49) to verify that the function module is operating properly. Once you have determined that the function module is operating properly, wire the signals according to your application’s requirements.
  • Page 47 Wiring Signals Table 6: Screw Terminal Assignments of the STP9820 Screw Terminal Panel (cont.) Screw Terminal Terminal Terminal Block Number Label Signal Description CH2H Analog Input Subsystem 2 High CH2L Analog Input Subsystem 2 Low AGND Analog Ground CH3H Analog Input Subsystem 3 High CH3L Analog Input Subsystem 3 Low AGND...
  • Page 48 You can externally power the +5 V isolated output signal. This will allow you to retain the last value that was written to the digital output lines when the DT9820 Series module is in low-power mode.

  • Page 49: Connecting Analog Input Signals

    Wiring Signals Connecting Analog Input Signals You can connect analog input signals to the DT9820 Series modules in the differential configuration only. Figure 6A illustrates how to connect a floating signal source to a DT9820 Series function module using differential inputs. (A floating signal source is a voltage source that has no connection with earth ground.)
  • Page 50 Chapter 6 TB1, 1 Analog In 0 TB1, 2 TB1, 3 Floating Signal Analog In 0 Source Return Analog Ground STP9820 Screw Terminal Panel Bridge TB1, 1 Analog In 0 TB1, 2 TB1, 3 Analog In 0 Return Analog Ground DC Supply It is recommended that you Ω...
  • Page 51 7. In this case, make sure that the low side of the signal (−) is connected to ground at the signal source, not at the DT9820 Series function module, and do not tie the two grounds together. STP9820 Screw Terminal Panel...
  • Page 52 Chapter 6 Figure 8 shows how to connect a current loop input (channel 0, in this case) to a DT9820 Series function module. STP9820 Screw Terminal Panel 4 to 20 mA Analog Input 0 TB1, 1 User-installed TB1, 2 Analog Input 0 Return...

  • Page 53: Connecting Analog Output Signals

    Wiring Signals Connecting Analog Output Signals Figure 9 shows how to connect an analog output voltage signal (channel 0, in this case) to a DT9822 function module. STP9820 Screw Terminal Panel Load Analog Ground TB3, 2 TB3, 3 Analog Output 0 Figure 9: Connecting Analog Output Voltages (Shown for Channel 0)

  • Page 54: Connecting Digital Input Signals

    Chapter 6 Connecting Digital Input Signals Figure 10 shows how to connect digital input signals (lines 0 and 1, in this case) to a DT9820 Series function module. STP9820 Screw Terminal Panel Digital Input Line 0 TB5, 1 TB5, 2...

  • Page 55: Connecting Digital Output Signals

    The other side of the relay is connected to the appropriate digital output terminal (in this case, digital output 0 or TB4, 1) on the STP9820. CAUTION: The external +5 V power supply voltage must not exceed 5.25 V or damage may result to the DT9820 Series module.
  • Page 56 Chapter 6 STP9820 Screw STP9820 Screw Terminal Panel Terminal Panel Relay Coil TB4, 1 Digital Output Line 0 TB3, 5 TB3,6 Digital Ground Figure 12: Connecting a Relay Driver to the STP9820 Screw Terminal Panel...

  • Page 57: Chapter 7: Verifying The Operation Of A Function Module

    Verifying the Operation of a Function Module Installing the Quick Data Acq Application ....Running the Quick Data Acq Application ....
  • Page 58 Chapter 7 Prepare to Use a Function Module (see Chapter 2 starting on page Install the Function Module (see Chapter 3 starting on page Configure the Device Driver (see Chapter 4 starting on page Configure and Attach the Screw Terminal Panel (see Chapter 5 starting on page Wire Signals...
  • Page 59 Verifying the Operation of a Function Module The Quick Data Acq application allows you to perform the following operations: • Acquire data from a single analog input channel or digital input port; • Acquire data continuously from one or more analog input channels using an oscilloscope, strip chart, or Fast Fourier Transform (FFT) view;...

  • Page 60: Installing The Quick Data Acq Application

    Chapter 7 Installing the Quick Data Acq Application To install the Quick Data Acq application, perform the following steps: Insert the Data Acquisition OMNI CD into your CD-ROM drive. Click Start from the Task Bar, then click Run. The Run dialog box appears. In the Command Line edit box, enter D:\LAUNCH.EXE.
  • Page 61 Verifying the Operation of a Function Module 12. Click Finish. The DT Data Acquisition Software setup program reappears. 13. Click Main Menu. 14. Click Exit.

  • Page 62: Running The Quick Data Acq Application

    Data Acquisition OMNI CD-ROM using the instructions starting on page Select Quick Data Acq from the Data Translation, Inc\Quick Data Acq program group. Note: The Quick Data Acq application allows you to verify basic operations on the module; however, it may not support all of the module’s features.

  • Page 63: Performing A Single-Value Analog Input Operation

    To verify that the module can read a single analog input value, perform the following steps: Connect a voltage source, such as a function generator, to analog input channel 0 (differential mode) on the DT9820 Series function module. Refer to page 42 for information on connecting differential analog input signals.

  • Page 64: Performing A Single-Value Analog Output Operation

    Click the Control menu. Click Single Analog Output. Select the appropriate DT9820 Series function module from the Board list box. Note: Once you select the function module, the LED on the module turns green.

  • Page 65: Performing A Continuous Analog Input Operation

    To verify that the module can perform a continuous analog input operation, perform the following steps: Connect known voltage sources, such as the outputs of a function generator, to analog input channels 0 and 1 on the DT9820 Series function module (using the differential configuration). Refer to page 42 for more information on connecting differential analog input signals.
  • Page 66 Chapter 7 From the Scope view, double-click the input range of the channel to change the input range of the module (±2.5 V, ±1.25 V, ±0.625 V, ±0.3125 V, ±0.15625 V, ±0.078125 V, or ±0.0390625 V for bipolar ranges, 0 to 2.5 V, 1.25 V, 0.625 V, 0.3125 V, 0.15625 V, 0.078125 V, or 0.0390625 V for unipolar ranges, or −0.1 to 2.5 V, 1.25 V, 0.625 V, 0.3125 V, 0.15625 V, 0.078125 V, or 0.0390625 V for offset unipolar ranges).

  • Page 67: Performing A Single-Value Digital Input Operation

    Click the Acquisition menu. Click Digital Input. Select the appropriate DT9820 Series function module from the Board list box. Note: Once you select the function module, the LED on the module turns green.

  • Page 68: Performing A Single-Value Digital Output Operation

    Click the Control menu. Click Digital Output. Select the appropriate DT9820 Series function module from the Board list box. Note: Once you select the function module, the LED on the module turns green.

  • Page 69: Appendix A: Using Your Own Screw Terminal Panel

    Using Your Own Screw Terminal Panel Analog Inputs ......... . Analog Outputs .
  • Page 70 This appendix describes additional considerations to keep in mind when designing your own screw terminal panel for use with a DT9820 Series module.

  • Page 71: Analog Inputs

    Using Your Own Screw Terminal Panel Analog Inputs The DT9820 Series function modules provide differential analog output channels only. Differential inputs offer the maximum noise rejection. For the best results, shielded twisted pairs are a must. The shield must connect at one end so that ground currents do not travel over the shield.

  • Page 72: Analog Outputs

    Appendix A Analog Outputs The DT9822 function module provides two analog output channels with a resolution of 16 bits. The design of the DT9822 ensures that the analog outputs do not break into a high frequency oscillation with high capacitance loads that may be experienced with long cables.

  • Page 73: Digital Inputs

    Using Your Own Screw Terminal Panel Digital Inputs TTL-type inputs must have current limiting so that circuitry is not damaged when power is removed. On all Data Translation USB modules, current limiting is used to prevent damage in this fault condition.

  • Page 74: Digital Outputs

    Appendix A Digital Outputs If you are using the high drive capability of any of the Data Translation USB modules, ensure that the load is returned to the digital ground provided in the connector next to the outputs. If just eight of the digital outputs are switching 16 mA per output, then 128 mA of current flows.

  • Page 75: Index

    DT9820 Series Device Driver DT9820 Series documentation DT9820 Series software cables EP310 EP777 EP310 cable Calibration utility EP777 cable...
  • Page 76 Quick Data Acq input configuration application input filter cutoff frequency installing a relay driver installing the DT9820 Series software installing the Quick Data Acq screw terminal assignments application STP9820 screw terminal panel system requirements J1 connector...

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