Advantech USB-5801 Operation & User’s Manual

Operation & User’s Manual for Advantech USB-5801 Control Unit, I/O Systems (58 pages)

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1598/1598542-usb5801.pdf file (07 Feb 2024)
  • Manufacturer: Advantech
  • Category of Device: Control Unit, I/O Systems
  • Document: USB-5801, File Type: PDF Operation & User’s Manual
  • Updated: 07-02-2024
  • Count of Pages: 58
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Compatible devices: PCIE-1730H, PCM-23C1CF, PCM-3117, PCM-3614I, PCI-1734, PCI-1750, PCM-3665 PC/104-Plus, ADAM-3013.

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  • Page 1:

    User Manual

    USB-5801

    4-CH, 24-Bit, 192 kS/s Dynamic

    Signal Acquisition USB 3.0 I/O

    Module with Analog Output and

    Tachometer

  • Page 2:

    USB-5801 User Manual ii

    Copyright

    This documentation and the software included with this product are copyrighted 2019

    by Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right

    to improve the products described in this manual at any time without notice. No part

    of this manual may be reproduced, copied, translated, or transmitted in any form or

    by any means without the prior written permission of Advantech Co., Ltd. The infor-

    mation provided in this manual is intended to be accurate and reliable. However,

    Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringements

    of the rights of third parties that may result from its use.

    Acknowledgments

    Intel and Pentium are trademarks of Intel Corporation.

    Microsoft Windows and MS-DOS are registered trademarks of Microsoft Corp.

    All other product names or trademarks are properties of their respective owners.

    Product Warranty (2 years)

    Advantech warrants the original purchaser that each of its products will be free from

    defects in materials and workmanship for two years from the date of purchase.

    This warranty does not apply to any products that have been repaired or altered by

    persons other than repair personnel authorized by Advantech, or products that have

    been subject to misuse, abuse, accident, or improper installation. Advantech

    assumes no liability under the terms of this warranty as a consequence of such

    events.

    Because of Advantech’s high quality-control standards and rigorous testing, most

    customers never need to use our repair service. If an Advantech product is defective,

    it will be repaired or replaced free of charge during the warranty period. For out-of-

    warranty repairs, customers are billed according to the cost of replacement materials,

    service time, and freight. Consult your dealer for more details.

    If you believe that your product is defective product, follow the steps outlined below.

    1. Collect all information about the problem encountered. (For example, CPU

    speed, Advantech products used, other hardware and software used, etc.) Note

    anything abnormal and list any onscreen messages displayed when the prob-

    lem occurs.

    2. Call your dealer and describe the problem. Have your manual, product, and any

    helpful information readily available.

    3. If your product is diagnosed as defective, obtain an return merchandize authori-

    zation (RMA) number from your dealer. This allows us to process your return

    more quickly.

    4. Carefully pack the defective product, a completed Repair and Replacement

    Order Card, and a proof of purchase date (such as a photocopy of your sales

    receipt) into a shippable container. Products returned without a proof of pur-

    chase date are not eligible for warranty service.

    5. Write the RMA number clearly on the outside of the package. Then ship the

    package prepaid to your dealer.

    Part No. 2001580100 Edition 1

    Printed in China August 2019

  • Page 3:

    iii USB-5801 User Manual

    CE

    This product has passed the CE test for environmental specifications when shielded

    cables are used for external wiring. We recommend the use of shielded cables. This

    type of cable is available from Advantech. Please contact your local supplier for

    ordering information.

    Technical Support and Assistance

    1. Visit the Advantech website at http://support.advantech.com.tw/ to obtain the

    latest product information.

    2. Contact your distributor, sales representative, or Advantech’s customer service

    center for technical support if you need additional assistance. Please have the

    following information ready before calling:

    – Product name and serial number

    – Description of your peripheral attachments

    – Description of your software (operating system, version, application software,

    etc.)

    – A complete description of the problem

    – The exact wording of any error messages

    Packing List

    Before setting up the system, check that the items listed below are included and in

    good condition. If any item is missing or damaged, contact your dealer immediately.

     1 x USB-5801 module

     4 x terminal blocks

     1 x USB-5801 startup manual

     1 x USB 3.0 lockable cable (1 m)

    Safety Precautions - Static Electricity

    Follow these simple precautions to protect yourself from harm and the products from

    damage.

    1. To avoid electrical shock, always disconnect the power from the PC chassis

    before manual handling. Do not touch any components on the CPU card or

    other cards while the PC is powered on.

    2. Disconnect the power before implementing any configuration changes. The sud-

    den rush of power after connecting a jumper or installing a card may damage

    sensitive electronic components.

  • Page 4:

    USB-5801 User Manual iv

  • Page 5:

    v USB-5801 User Manual

    Contents

    Chapter 1 Introduction..........................................1

    1.1 Features .................................................................................................... 2

    1.2 Installation Guide ...................................................................................... 3

    Figure 1.1 Installation Flowchart.................................................. 4

    1.3 Software Overview .................................................................................... 5

    1.4 DAQNavi Device Driver Programming Roadmap ..................................... 5

    1.5 Accessories............................................................................................... 6

    Chapter 2 Installation............................................7

    2.1 Unpacking Instructions.............................................................................. 8

    2.2 Driver Installation ...................................................................................... 9

    Figure 2.1 Advantech DAQNavi Installation Wizard .................... 9

    Figure 2.2 Driver Installation Setup Screen ............................... 10

    Figure 2.3 Driver Installation Path and Space Requirements.... 10

    Figure 2.4 Driver Installation Process........................................ 11

    Figure 2.5 Exit the Driver Installation Wizard............................. 11

    2.3 Hardware Installation ............................................................................. 12

    2.4 Device Setup and Configuration ............................................................. 13

    Figure 2.6 USB-5801 Device Settings ....................................... 13

    Figure 2.7 Device Settings Page ............................................... 14

    Figure 2.8 USB-5801 Device Testing ........................................ 14

    Chapter 3 Signal Connections ...........................15

    3.1 Overview ................................................................................................. 16

    3.2 Dimensions ............................................................................................. 16

    3.3 Connector, Switch, and LED ................................................................... 17

    3.4 Analog Input ............................................................................................ 20

    3.4.1 Analog Input Overview................................................................ 20

    Figure 3.1 Analog Input Functional Block Diagram ................... 20

    3.4.2 Analog Input Channel Types....................................................... 20

    Figure 3.2 Connecting a Floating Source .................................. 20

    Figure 3.3 Connecting a Grounded Source ............................... 21

    Table 3.1: Recommended Analog Input Channel Configuration21

    3.4.3 Analog Input Coupling................................................................. 21

    3.4.4 Integrated Electronic Piezoelectric (IEPE) Excitation ................. 22

    Figure 3.4 Connecting an IEPE Sensor..................................... 22

    Table 3.2: LED Status for IEPE Fault Detection........................ 22

    3.4.5 Analog Input Ranges .................................................................. 23

    3.4.6 Sample Rate and Anti-Aliasing Filters ........................................ 23

    Figure 3.5 Anti-Aliasing Filters................................................... 23

    3.4.7 Analog Input Measurement Types .............................................. 24

    Figure 3.6 Analog Input Measurement Types............................ 24

    3.5 Analog Output ......................................................................................... 24

    3.5.1 Analog Output Overview ............................................................. 24

    Figure 3.7 Analog Output Functional Block Diagram................. 24

    3.5.2 Analog Output Channel Types.................................................... 24

    3.5.3 Analog Output Loads .................................................................. 25

    3.5.4 Analog Output Generation Types ............................................... 25

    Figure 3.8 Analog Output Generation Types ............................. 25

    3.6 Trigger..................................................................................................... 26

    3.6.1 Trigger Functions ........................................................................ 26

  • Page 6:

    USB-5801 User Manual vi

    Figure 3.9 Delayed Start and Stop Triggers .............................. 26

    3.6.2 Digital Triggers............................................................................ 26

    Figure 3.10Digital Trigger Signal Connection and Signals ......... 26

    3.6.3 Analog Triggers .......................................................................... 27

    Figure 3.11Analog Triggers ........................................................ 27

    Figure 3.12Analog Triggers with Hysteresis............................... 27

    3.7 Analog Calibration................................................................................... 28

    3.7.1 Analog Calibration Overview ...................................................... 28

    Figure 3.13Block Diagram of Analog Calibration Circuitry ......... 28

    3.7.2 Voltage References Calibration .................................................. 29

    Figure 3.14Voltage Reference Calibration ................................. 29

    3.7.3 Analog Input Calibration ............................................................. 30

    Figure 3.15Analog Input Calibration ........................................... 30

    3.7.4 Analog Output Calibration........................................................... 30

    Figure 3.16Analog Output Calibration ........................................ 30

    3.7.5 Store Calibration Parameters to EEPROM................................. 31

    Figure 3.17Store Calibration Parameters to EEPROM .............. 31

    3.7.6 Load Default Calibration Parameters from EEPROM................. 32

    Figure 3.18Load Default Calibration Parameters from EEPROM ..

    32

    3.8 Digital Input/Output ................................................................................. 33

    3.8.1 Digital Inputs ............................................................................... 33

    Figure 3.19Digital Input Functional Block Diagram .................... 33

    Figure 3.20Digital Input Interrupt ................................................ 33

    Figure 3.21Digital Input Filter ..................................................... 34

    3.8.2 Digital Outputs ............................................................................ 35

    Figure 3.22Digital Output Functional Block Diagram.................. 35

    3.9 Counter/Timer ......................................................................................... 35

    Figure 3.23Counter/Timer Functional Block Diagram ................ 35

    3.9.1 Event Counting ........................................................................... 36

    Figure 3.24Event Counting......................................................... 36

    3.9.2 Frequency Measurement (Tachometer) ..................................... 36

    Figure 3.25Frequency Measurement ......................................... 36

    3.9.3 Phase Measurement for Analog Input Samples ......................... 37

    Figure 3.26Phase Measurement for Analog Input Samples....... 37

    3.10 Synchronization ...................................................................................... 38

    Figure 3.27Multiple Module Synchronization.............................. 38

    Appendix A Specifications.................................... 39

    A.1 Analog Input............................................................................................ 40

    A.1.1 Functions .................................................................................... 40

    A.1.2 ADC Modulator Oversample Rate .............................................. 40

    A.1.3 Maximum Operating Voltage ...................................................... 40

    A.1.4 Input Overvoltage Protection ...................................................... 41

    A.1.5 AC Coupled Measurement Accuracy.......................................... 41

    A.1.6 DC Coupled Measurement Accuracy ......................................... 41

    A.1.7 Input Impedance ......................................................................... 41

    A.1.8 Common-Mode Rejection Ratio (CMRR) ................................... 41

    A.1.9 Frequency Response.................................................................. 42

    A.1.10 AC Coupling................................................................................ 42

    A.1.11 Idle Channel Noise ..................................................................... 42

    A.1.12 Dynamic Range (DR).................................................................. 42

    A.1.13 Spurious Free Dynamic Range (SFDR) ..................................... 42

    A.1.14 Signal-to-Noise Ratio (SNR)....................................................... 43

    A.1.15 Total Harmonic Distortion (THD) ................................................ 43

    A.1.16 Total Harmonic Distortion Plus Noise (THD+N) ......................... 43

    A.1.17 Crosstalk..................................................................................... 43

    A.1.18 Integrated Electronic Piezoelectric Excitation (IEPE) ................. 44

  • Page 7:

    vii USB-5801 User Manual

    A.2 Analog Output ......................................................................................... 44

    A.2.1 Functions .................................................................................... 44

    A.2.2 Analog Output Accuracy ............................................................. 44

    A.2.3 Output Noise ............................................................................... 44

    A.2.4 Spurious Free Dynamic Range (SFDR)...................................... 45

    A.2.5 Signal-to-Noise Ratio (SNR) ....................................................... 45

    A.2.6 Total Harmonic Distortion (THD)................................................. 45

    A.2.7 Total Harmonic Distortion Plus Noise (THD+N).......................... 45

    A.3 Triggers ................................................................................................... 46

    A.3.1 Analog Trigger Input ................................................................... 46

    A.3.2 Digital Trigger Input..................................................................... 46

    A.3.3 Digital Trigger Output.................................................................. 46

    A.4 Tachometer ............................................................................................. 46

    A.5 Digital I/O ................................................................................................ 47

    A.5.1 Digital Input ................................................................................. 47

    A.5.2 Digital Output .............................................................................. 47

    A.6 General Specifications ............................................................................ 48

    A.6.1 Bus Interface............................................................................... 48

    A.6.2 Power Requirements .................................................................. 48

    A.6.3 Physical....................................................................................... 48

    A.6.4 Environmental ............................................................................. 48

  • Page 8:

    USB-5801 User Manual viii

  • Page 9:

    Chapter 1

    1 Introduction

    This chapter provides an intro-

    duction to USB-5801 and its typi-

    cal applications.

     Features

     Applications

     Installation Guide

     Software Overview

     Accessories

  • Page 10:

    USB-5801 User Manual 2

    USB-5801 is a high accuracy dynamic signal acquisition USB 3.0 module specifically

    designed for vibration and acoustic measurements. It provides four simultaneously

    sampled, 24-bit, IEPE sensor inputs with up to 192 kS/s sample rate for high resolu-

    tion measurements. It is also equipped with two 24-bit analog outputs with up to 192

    kS/s update rate. In addition, it has two tachometer inputs whose data can be corre-

    lated to the sensor data. The built-in USB hub makes this module daisy chainable

    with other USB-5000 series products.

    1.1 Features

     USB 3.0 SuperSpeed and daisy chainable by built-in USB hub

     4 simultaneously sampled analog inputs, up to 192 kS/s

     24-bit resolution ADCs with -94 dB total harmonic distortion plus noise (THD+N)

     Built-in anti-aliasing filter

     2 mA integrated electronic piezoelectric (IEPE) excitation currents

     2 analog outputs with update rate up to 192 kS/s

     24-bit resolution DACs with -90 dB total harmonic distortion plus noise (THD+N)

     2 tachometer inputs for period or frequency measurement

     4-ch isolated digital input and 4-ch isolated digital output

    USB 3.0 SuperSpeed

    The USB-5800 series modules support USB 3.0 SuperSpeed for an accelerated

    response time.

    Easy Maintenance

    The LED indicators, rotary switch, and terminal blocks are all front-facing for easy

    access and wiring. The European-type pluggable terminal blocks also simplify main-

    tenance, reducing overall service time.

    Compact Size

    The compact design and high-density channel count improves space utilization, while

    the DIN-rail mounting kit ensures easy installation in cabinets.

    Built-In USB Hub with Daisy Chaining Support

    The USB-5800 module is equipped with a USB hub that supports daisy chain topolo-

    gies. This feature frees up the IPC USB ports by enabling more than one USB-5800

    module to be integrated into a single system.

    Note! Because USB 3.0 can only provide a maximum current of 900 mA, if

    more than one module is connected via the hub, an external power sup-

    ply unit (PSU) will be required.

  • Page 11:

    3 USB-5801 User Manual

    Chapter 1 Introduction

    Redundant Power

    USB-5801 modules feature two power input terminals with an input power range of

    10 ~ 30 V

    DC

    and power redundancy support. For modules connected to two power

    input sources, if one source is inactive or interrupted, the other power source can

    immediately assume supply operations. Accordingly, USB-5801 modules can oper-

    ate with a single power source. (The modules can also be powered via USB if there is

    no device connected to the downstream port.)

    Board ID Switch

    USB-5801 modules have a built-in DIP switch that is used to define the board ID for

    each module. When multiple modules are installed in the same system, the board ID

    switch can be used to identify each module’s device number. Every module in the

    system should be assigned different device numbers. The default board ID value is 0.

    1.2 Installation Guide

    Before module installation, please ensure that you have the following necessary

    components:

     1 x USB-5801 module

     1 x USB-5801 user manual

     Advantech DAQNavi driver software

     1 x personal computer or workstation with a USB interface (equipped with

    Windows 10/8/7/XP operating system)

     1 x 10 ~ 30 V power supply (96PS-A40WDIN optional)

    Other optional components are also available for enhanced operation:

     DAQNavi, LabVIEW, and other third-party software

    Once you have the necessary components and any additional accessories for

    enhanced operation, you can begin installing the USB-5801 module. Figure 1.1 is a

    flowchart that provides a broad overview of the software and hardware installation

    procedures.

    Note! The USB host (system) can support up to five levels of hubs. If more

    than five levels are cascaded, the USB modules may malfunction.

  • Page 12:

    USB-5801 User Manual 4

    Figure 1.1 Installation Flowchart

  • Page 13:

    5 USB-5801 User Manual

    Chapter 1 Introduction

    1.3 Software Overview

    Advantech offers a wide range of DLL drivers, third-party drivers, and application

    software for fully exploiting the functions of your USB-5801 module.

     Device Drivers

     Advantech DAQNavi

    DAQNavi Software

    Advantech’s DAQNavi software includes device drivers and a software development

    kit (SDK), which features a comprehensive I/O function library to boost application

    performance. This software can be downloaded from the Advantech website (at

    www.advantech.com). The Advantech DAQNavi software for Windows XP/7/8/10

    (desktop mode) works seamlessly with most major development tools, including

    Visual Studio.NET, Visual C++, Visual Basic, and Borland Delphi.

    1.4 DAQNavi Device Driver Programming Roadmap

    This section provides a roadmap for building an application from scratch using

    Advantech’s DAQNavi Device Driver with a range of development tools such as

    Visual Studio.NET, Visual C++, Visual Basic, Delphi, and C++ Builder. Step-by-step

    instructions for application development using each tool are provided in the device

    driver manual. A large library of example source codes is also provided for reference.

    Programming Tools

    Programmers can develop application programs using their preferred development

    tools.

     Visual Studio.NET

     Visual C++ and Visual Basic

     Delphi

     C++ Builder

    For instructions on programming using each development tool, Advantech offers a

    tutorial chapter in the DAQNavi SDK manual. Please refer to the corresponding sec-

    tions in the DAQNavi SDK manual to begin programming. Users should also review

    the example source codes provided for each programming tool. The examples can

    help jump start a project.

    The DAQNavi SDK manual can be downloaded from the Advantech website. Alterna-

    tively, if the device drivers are already installed on the computer, the DAQNavi SDK

    manual can be accessed via the Start button.

    Start/Programs/Advantech Automation/DAQNavi/DAQNavi Manuals/DAQNavi

    SDK Manual

    The example source codes can be found under the corresponding installation folder/

    default installation path.

    \Advantech\DAQNavi\Examples

    For information about using other function groups or development tools, refer to the

    chapter titled “Using DAQNavi SDK” in the DAQNavi SDK manual, or watch the video

    tutorials provided with the Advantech Navigator.

  • Page 14:

    USB-5801 User Manual 6

    Programming with DAQNavi Device Drivers Function Library

    Advantech offers a comprehensive function library for DAQNavi device drivers that

    can be utilized when developing various application programs. This function library

    comprises numerous APIs that support many development tools, such as Visual Stu-

    dio.NET, Visual C++, Visual Basic, Delphi and C++ Builder.

    These APIs can be categorized into several groups according to their function or pur-

    pose.

     Analog Input Function Group

     Analog Output Function Group

     Digital Input/Output Function Group

     Counter Function Group

     Port Function Group (direct I/O)

     Event Function Group

    For the usage and parameters of each function, refer to the chapter titled “Using

    DAQNavi SDK” in the DAQNavi SDK manual.

    Troubleshooting DAQNavi Device Drivers Error

    Driver functions return a status code when called to perform a certain task for an

    application. When a function returns a code that is not zero, this means the driver has

    failed to perform the designated function. To troubleshoot device driver errors, check

    the error code and error description in the Error Control section for each function in

    the DAQNavi SDK manual.

    1.5 Accessories

    Advantech offers the following accessories to support the USB-5801 module:

    Power supply unit

     96PSD-A40W24-MM 40 W, 24 V DIN-rail power supply

  • Page 15:

    Chapter 2

    2 Installation

    This chapter includes a packing

    checklist, instructions for unpack-

    ing, and step-by-step procedures

    for both driver and card installa-

    tion.

     Unpacking Instructions

     Driver Installation

     Hardware Installation

     Device Setup and Configuration

  • Page 16:

    USB-5801 User Manual 8

    2.1 Unpacking Instructions

    After receiving your USB-5801 module, inspect the package contents to ensure that

    the following items are present:

     1 x USB-5801 module

     4 x terminal blocks

     1 x USB-5801 startup manual

     1 x USB 3.0 lockable cable (1 m)

    The USB-5801 module contains electronic components that are vulnerable to elec-

    trostatic discharge (ESD). ESD can easily damage the integrated circuits and compo-

    nents if preventive measures are not carefully implemented. Before removing the

    module from the antistatic plastic bag, take the following precautions to prevent pos-

    sible ESD damage:

     Touch the metal part of your computer chassis with your hand to discharge any

    static electricity accumulated in your body. Alternatively, wear a grounding strap.

     Make contact between the antistatic bag and ground before opening. After

    removing the module from the packaging, first inspect the module for any signs

    of external damage (loose or damaged components, etc.). If the module is visi-

    bly damaged, notify our service department or your local sales representative

    immediately. Do not install or use a damaged module.

     Avoid contact with materials that may hold static electricity, such as plastic,

    vinyl, and styrofoam.

  • Page 17:

    9 USB-5801 User Manual

    Chapter 2 Installation

    2.2 Driver Installation

    We recommend installing the drivers before installing the USB-5801 module to guar-

    antee a problem-free installation process.

    The Advantech DAQNavi Device Drivers setup program can be downloaded from the

    Advantech website. Follow the steps outlined below to install the driver software.

    1. Execute the USB-5801 driver package.

    2. The Advantech DAQNavi driver installation wizard program should launch auto-

    matically. Figures 2.1 to 2.5 show the various pages of the installation wizard

    interface.

    Figure 2.1 Advantech DAQNavi Installation Wizard

  • Page 18:

    USB-5801 User Manual 10

    Figure 2.2 Driver Installation Setup Screen

    3. Once the DAQNavi driver installation wizard is launched, follow the instructions

    displayed in the interface to complete the driver installation.

    Figure 2.3 Driver Installation Path and Space Requirements

  • Page 19:

    11 USB-5801 User Manual

    Chapter 2 Installation

    Figure 2.4 Driver Installation Process

    4. After the driver is successfully installed, click the “Finish” button to exit the instal-

    lation wizard.

    Figure 2.5 Exit the Driver Installation Wizard

  • Page 20:

    USB-5801 User Manual 12

    2.3 Hardware Installation

    After the device drivers are installed, the USB-5801 module can be installed in your

    computer. We recommend referring to the computer user manual or related docu-

    mentation if you have any concerns. Follow the steps outlined below to install the

    module.

    1. Touch any metal surface of your computer to discharge any static electricity that

    may have accumulated in your body.

    2. Plug the USB-5801 module into the selected USB port. To avoid damaging the

    module, do not use excessive force when inserting the module into the USB

    port.

    After the module is installed, your device can be configured using the Advantech

    Navigator program automatically installed during driver installation. The complete

    device installation process should include device setup, configuration, and testing.

    The following sections provide information for guiding users through the device

    setup, configuration, and testing procedures.

    Note! Ensure that the relevant driver is installed before installing the USB-5801 mod-

    ule. (Refer to Section 2.2 “Driver Installation” for more information.)

  • Page 21:

    13 USB-5801 User Manual

    Chapter 2 Installation

    2.4 Device Setup and Configuration

    The Advantech Navigator program is a utility for setting up, configuring, and testing

    devices. The program also stores the system configuration settings in the system

    registry for subsequent reference. These settings are used when a device driver API

    is called. Figure 2.6 shows an example of the USB-5801 device settings.

    Setting Up a Device

    1. To install an I/O device or module, first initialize the Advantech Navigator pro-

    gram (Start/Programs/Advantech Automation/Navigator for DN4).

    2. Users can view the device(s) already installed on the system (if any) by access-

    ing the Installed Devices list. Once the software/hardware installation is com-

    plete, the USB-5801 module should be included in the Installed Devices list.

    Figure 2.6 USB-5801 Device Settings

  • Page 22:

    USB-5801 User Manual 14

    Configuring the Device

    3. Go to the Device Setting page to configure the device. The items in the page

    allow users to configure the USB-5801 modules’ analog input.

    Figure 2.7 Device Settings Page

    4. After the module is installed and configured, access the Device Testing page to

    test the hardware using the test utility provided.

    Figure 2.8 USB-5801 Device Testing

    For more detailed information, please refer to the DAQNavi SDK manual or the

    Advantech Navigator user interface manual.

  • Page 23:

    Chapter 3

    3 Signal Connections

    This chapter explains how to con-

    nect input and output signals to

    the USB-5801 module via the I/O

    connector.

     Overview

     Board ID Settings

     Signal Connections

     Field Wiring Considerations

  • Page 24:

    USB-5801 User Manual 16

    3.1 Overview

    Maintaining signal connections is one of the most important factors in ensuring that

    your application system is sending and receiving data correctly. A good signal con-

    nection can prevent unnecessary and costly damage to your PC and other hardware

    devices. This chapter provides information about connecting input and output signals

    to the USB-5800 module via the I/O connector.

    3.2 Dimensions

  • Page 25:

    17 USB-5801 User Manual

    Chapter 3 Signal Connections

    3.3 Connector, Switch, and LED

    Switch Description

    SW1

    Board ID switch. Refer to the following table for board ID configuration.

    Board ID3210

    0 ↑↑↑↑

    1 ↑↑↑↓

    2 ↑↑↓↑

    3 ↑↑↓↓

    4 ↑↓↑↑

    5 ↑↓↑↓

    6 ↑↓↓↑

    7 ↑↓↓↓

    8 ↓↑↑↑

    9 ↓↑↑↓

    10 ↓↑↓↑

    11 ↓↑↓↓

    12 ↓↓↑↑

    13 ↓↓↑↓

    14 ↓↓↓↑

    15 ↓↓↓↓

    Connector Description

    CN1

    USB upstream port (USB 3.0 type-B connector with screw). Connect this

    port to the host or to the downstream port of the previous USB module.

    CN2

    USB downstream port (USB 3.0 type-A connector with screw). Connect this

    port to the upstream port of the next USB module if any.

    Connector Pin Description

    CN4

    Center pin Positive terminal of analog input channel 0

    Outer shield Negative terminal of analog input channel 0

    CN5

    Center pin Positive terminal of analog input channel 1

    Outer shield Negative terminal of analog input channel 1

    CN6

    Center pin Positive terminal of analog input channel 2

    Outer shield Negative terminal of analog input channel 2

    CN7

    Center pin Positive terminal of analog input channel 3

    Outer shield Negative terminal of analog input channel 3

    CN8

    Center pin Positive terminal of analog output channel 0

    Outer shield Negative terminal of analog output channel 0

    CN9

    Center pin Positive terminal of analog output channel 1

    Outer shield Negative terminal of analog output channel 1

  • Page 26:

    USB-5801 User Manual 18

    Connector Pin Description

    CN10 & CN11

    C<0…1>CLK Clock input for counter channel 0 and 1

    C<0…1>SCK Sample clock input for counter channel 0 and 1

    TRGIN Digital trigger input

    TRGOUT Digital trigger output

    I<0…3> Digital input channel 0 through 3

    O<0…3> Digital output channel 0 through 3

    EC Common point for digital input signals

    PC Common point for digital output signals

    GND Ground for digital signals

    Connector Pin Name Description

    CN12 & CN13

    +VS

    External 10 ~ 30 V

    DC

    power supply

    GND Power ground

    Chassis ground

    Note! CN12 and CN13 are used for power redundancy. External power can be

    supplied from either of the connectors.

    LED State Description

    LED2

    Off Module is not powered on

    Green

    Module is powered on using either USB bus power or

    external power

    LED3

    Off Initial state. Module has not been connected

    Green

    Upstream port is connected. Module is functioning nor-

    mally

    Red

    Upstream port is not connected or is disconnected. Mod-

    ule function is halted

    LED4

    Off Downstream port is not connected

    Blue Downstream port is connected

  • Page 27:

    19 USB-5801 User Manual

    Chapter 3 Signal Connections

    LED State Description

    Near CN4

    Off

    No sensor is connected to analog input channel 0 or

    sensor wire is broken

    Green

    Sensor is connected to analog input channel 0 and

    works normally

    Red

    Sensor connected to analog input channel 0 is short cir-

    cuited

    Near CN5

    Off

    No sensor is connected to analog input channel 1 or

    sensor wire is broken

    Green

    Sensor is connected to analog input channel 1 and

    works normally

    Red

    Sensor connected to analog input channel 1 is short cir-

    cuited

    Near CN6

    Off

    No sensor is connected to analog input channel 2 or

    sensor wire is broken

    Green

    Sensor is connected to analog input channel 2 and

    works normally

    Red

    Sensor connected to analog input channel 2 is short cir-

    cuited

    Near CN7

    Off

    No sensor is connected to analog input channel 3 or

    sensor wire is broken

    Green

    Sensor is connected to analog input channel 3 and

    works normally

    Red

    Sensor connected to analog input channel 3 is short cir-

    cuited

    Note! LEDs near CN4 ~ CN7 are functioning only when IEPE is enabled for

    the corresponding analog input channel.

  • Page 28:

    USB-5801 User Manual 20

    3.4 Analog Input

    3.4.1 Analog Input Overview

    The USB-5801 provides 8 channels of analog input (AI) signal measurement. Figure

    3.1 shows the functional block diagram of one analog input channel.

    Figure 3.1 Analog Input Functional Block Diagram

    The analog input signal enters the USB-5801 through a BNC connector. The IEPE

    excitation, differential/pseudo-differential, AC/DC coupling, and input range can all be

    configured for each channel independently by software. A low-pass filter before the

    ADC removes unwanted out-of-band noise and alias components.

    3.4.2 Analog Input Channel Types

    The USB-5801 supports two types of terminal configuration for analog input: differen-

    tial and pseudo-differential. The term "pseudo-differential" refers to a 50 Ω resistor

    between the outer shell of the BNC connector and the signal ground.

    For a floating signal source, using the pseudo-differential configuration is recom-

    mended. The pseudo-differential configuration provides a ground reference between

    the floating source and the USB-5801 by connecting a 50 Ω resistor from the nega-

    tive input to ground. This is shown in Figure 3.2. Without this, the floating source can

    drift outside of the input common-mode range of the USB-5801.

    Figure 3.2 Connecting a Floating Source

    For a grounded or ground referenced signal source, both the pseudo-differential and

    differential input configurations can be used. However, the differential input configu-

    ration is preferred, since using the pseudo-differential input configuration on a

    grounded signal source creates more than one ground-reference point, which results

    in a ground loop. The ground loop will introduce errors or noise into the measure-

    ment. The 50 Ω resistor between the negative input and ground is usually sufficient to

    reduce these errors to negligible levels, but results can vary depending on your sys-

    tem setup. This is shown in Figure 3.3.

  • Page 29:

    21 USB-5801 User Manual

    Chapter 3 Signal Connections

    Figure 3.3 Connecting a Grounded Source

    Therefore, users should configure the channels based on the signal source type.

    Table 3.1 summarizes the recommended configurations for different signal source

    type. Each channel can be configured independently.

    3.4.3 Analog Input Coupling

    Each analog input channel can be individually configured as either AC or DC cou-

    pling. For DC coupling, any DC offset presented in the source signal is directly

    passed to the ADC. The DC coupling configuration can be used if the source signal

    has only small amounts of offset voltage or if the DC content of the signal is impor-

    tant. However, if the source has significant amounts of unwanted offset voltage, AC

    coupling should be used to take full advantage of the input dynamic range.

    For AC coupling, a high-pass resistor-capacitor (RC) filter in the signal path is

    enabled. The filter time constant is 0.2 seconds. For a step input signal, it takes 1.06

    seconds to settle to 0.5% accuracy, and 3.33 seconds to settle to 24-bit accuracy.

    The settling time also dependents on the signal source impedance.

    Due to the settling time described above, users should take care when switching the

    analog input channels from DC coupling to AC coupling. Users can either discard

    samples taken during the settling time, or force a delay before starting the measure-

    ment. There is no settling time issue when switching the analog input channels from

    AC coupling to DC coupling.

    The high-pass RC filter for AC coupling will attenuate the low-frequency component

    of the input signal. The -3 dB cut-off frequency is 0.796 Hz.

    Table 3.1: Recommended Analog Input Channel Configuration

    Source Type Channel Configuration

    Floating Pseudo-differential

    Grounded Differential

  • Page 30:

    USB-5801 User Manual 22

    3.4.4 Integrated Electronic Piezoelectric (IEPE) Excitation

    The USB-5801 is equipped with a 2 mA constant current source of IEPE excitation

    for each analog input channel. When an IEPE sensor such as accelerometer or

    microphone is connected to the analog input terminals, the IEPE excitation for that

    channel must be enabled.

    For those channels with IEPE excitation enabled, both pseudo-differential configura-

    tion and AC coupling must be selected. The pseudo-differential resistor provides a

    path for the IEPE excitation current to ground. The AC coupling removes the DC volt-

    age offset generated by the IEPE excitation current through the sensor impedance. It

    also prevents overvoltage conditions. This is shown in Figure 3.4.

    Figure 3.4 Connecting an IEPE Sensor

    Users should note that when enabling IEPE excitation (and selecting AC coupling),

    the settling time phenomenon described in the previous section will occur. Please

    refer to the previous section for how to deal with this issue.

    3.4.4.1 IEPE Fault Detection

    Each analog input channel has LED indicators for IEPE fault detection. These indica-

    tors are effective only when IEPE excitation is enabled for the corresponding chan-

    nels.

    When the sensor is connected correctly, the green (normal) LED is on. If both two

    analog input terminals (positive and negative) are short, the red (short) LED is on. If

    the sensor wiring is broken or if there is no sensor connected, all LEDs are off. Table

    3.2 shows the LED status for IEPE fault detection.

    Table 3.2: LED Status for IEPE Fault Detection.

    LED Status Description

    Green Normal

    Red Sensor short

    All off Sensor open or no sensor connected

  • Page 31:

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    Chapter 3 Signal Connections

    3.4.5 Analog Input Ranges

    The USB-5801 supports 4 different analog input ranges: ±10 V, ±5 V, ±2 V, and ±1 V.

    Users should select the input range that is large enough for all possible voltage val-

    ues of the input signal, and small enough to make full use of the input dynamic range.

    For example, if the largest signal variation is ±3 V, input range of ±5 V is suggested. If

    the largest signal variation is ±1.5 V, input range of ±2 V is suggested.

    If the range of the input signal is unknown, always select the maximum input range of

    ±10 V to prevent over-voltage and damage to the hardware.

    3.4.6 Sample Rate and Anti-Aliasing Filters

    In a sampling system, such as an ADC, the maximum bandwidth of the signal that

    can be measured is limited. Specifically, a sampling system with sample rate of fS

    can represent only signals with frequency lower than fS/2. This frequency is called

    the Nyquist frequency and the bandwidth from 0 Hz to the Nyquist frequency is called

    the Nyquist bandwidth.

    However, frequency components above the Nyquist frequency, if any, will be modu-

    lated back to the Nyquist bandwidth when ADC is sampling, which introduces distor-

    tion to the measurement result. This undesirable effect is called aliasing.

    Unfortunately, one cannot tell whether aliasing occurs by just looking at the mea-

    sured result. The only method to prevent aliasing is by low-pass filtering to remove

    frequency components above the Nyquist frequency. This low-pass filter is usually

    called anti-aliasing filter.

    The delta-sigma ADCs on the USB-5801 contain an oversampled architecture and

    sharp roll-off digital filters with cut-off frequencies that track the sampling rate. The

    cut-off frequencies of the digital filters will be automatically adjusted to a little lower

    than the Nyquist frequency, which can be considered as excellent anti-aliasing filters.

    Although the digital filter eliminates almost all out-of-band components, it is still sus-

    ceptible to aliases from certain narrow frequency bands. These bands are located at

    sample rate multiplied by oversample factor, and the bandwidth is always one fs

    wide. To deal with these susceptible bands, the USB-5801 is also equipped with a

    fixed cut-off frequency, multiple-pole analog low-pass filter. The analog filter removes

    high-frequency components that are not covered by the digital filter in the ADCs in

    the analog signal path before they reach the ADC. This is shown in Figure 3.5.

    Figure 3.5 Anti-Aliasing Filters

  • Page 32:

    USB-5801 User Manual 24

    3.4.7 Analog Input Measurement Types

    The analog signal is converted to the digital sample by the ADC. After offset and gain

    correction, the samples are routed differently for different types of measurement as

    shown in Figure 3.6.

    For buffered AI measurement, each sample acquired will be written into a first-in-first-

    out (FIFO) buffer and then uploaded to the host automatically. All samples acquired

    during the acquisition period are presented to the users and will not be lost. This

    measurement type is best for those who needs post data processing such as fast

    Fourier transform (FFT).

    For instant AI measurement, samples will not be written into the FIFO. When the host

    requests to read the sample, only the latest sample acquired is returned. This type of

    measurement is suitable for static or low frequency voltage monitoring.

    Figure 3.6 Analog Input Measurement Types

    3.5 Analog Output

    3.5.1 Analog Output Overview

    The USB-5801 provides 2 channels of analog output (AO) signal measurement. Fig-

    ure 3.7 shows the functional block diagram of one analog input channel.

    Figure 3.7 Analog Output Functional Block Diagram

    The DAC generates single-ended analog output signals. The single-ended signal is

    converted to differential signal by a buffer, and then goes through a low-pass interpo-

    lating filtered to a BNC connector. The de-glitch switches are opened when power-

    on, and automatically closed only after the power supplies are stable, preventing

    unexpected signal glitches at power-on. The output range can be configured for each

    channel independently by software.

    3.5.2 Analog Output Channel Types

    The USB-5801 supports pseudo-differential terminal configuration. The term

    "pseudo-differential" refers to a 50 Ω resistor between the outer shell of the BNC con-

    nector and the signal ground.

  • Page 33:

    25 USB-5801 User Manual

    Chapter 3 Signal Connections

    3.5.3 Analog Output Loads

    Although the USB-5801 is specified to drive a minimal load of 600 Ω, the output sig-

    nal distortion is minimized for high impedance load. Users can, for example, connect

    the analog outputs to external devices with larger input impedance such as 10 kΩ or

    100 kΩ for optimal performance.

    In addition, the output waveform will be attenuated for lower load impedance due to

    the small but non-zero output impedance of the analog output circuitry. The differen-

    tial output impedance between the positive and negative terminals is approximately

    20 Ω.

    3.5.4 Analog Output Generation Types

    After offset and gain correction, the digital samples are converted to the analog out-

    put signals by the DAC. There are two types of methods to generate the digital sam-

    ples as shown in Figure 3.8.

    For buffered AO generation, the pre-programmed samples are first written into a

    FIFO buffer. The samples are converted to the analog output signals by the DAC one

    by one at the specified update rate. Arbitrary waveform with specified frequency (or

    period) can be generated using buffered AO.

    For static AO generation, the analog output voltage stays constant until new output

    value is written by the software. The samples are written to the DAC directly without

    passing through a FIFO buffer, thus the time at which the samples are actually con-

    verted to the analog output signals by the DAC is uncertain. This type of generation is

    suitable for DC voltage output or very low frequency waveform output.

    Figure 3.8 Analog Output Generation Types

  • Page 34:

    USB-5801 User Manual 26

    3.6 Trigger

    3.6.1 Trigger Functions

    Data acquisition or generation of the USB-5801 is controlled by the start trigger and

    the stop trigger. The returned data consists of samples acquired after the start trigger

    occurs and before the stop trigger occurs.

    Both the start and stop triggers can be delayed by a predefined delay sample num-

    ber. The trigger takes effect only when the number of samples acquired after the trig-

    ger occurs has reached the predefined delay sample number. This is shown in Figure

    3.11.

    Figure 3.9 Delayed Start and Stop Triggers

    The start and stop triggers can be configured independently, and routed from a vari-

    ety of signal sources. In addition, triggers can be configured to occur at rising edge or

    falling edge of a signal. Since the start and stop triggers are configured indepen-

    dently, alternate edges of one signal can be used as different triggers.

    3.6.2 Digital Triggers

    The triggers can be routed from the external digital signal on TRGIN pin of the termi-

    nal block, located at the lower part of the module. This is called digital trigger. The

    triggers can be configured to occur at rising edge or falling edge of the signal. Figure

    3.12 shows the digital trigger signal connection and a trigger example.

    Figure 3.10 Digital Trigger Signal Connection and Signals

  • Page 35:

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    Chapter 3 Signal Connections

    3.6.3 Analog Triggers

    The triggers can also be routed from the measured results of the analog input chan-

    nels. This is called analog trigger. Users need to select one of the analog input chan-

    nels as trigger signal source, set the trigger voltage threshold, and configure whether

    trigger occurs at rising edge or falling edge of the signal.

    After configuration, the internal analog trigger circuitry begins to monitor the acquired

    samples (voltage) of the selected analog input channel. A trigger will occur when the

    voltage crosses the trigger voltage threshold with the same edge as configured. This

    is shown in Figure 3.13.

    Figure 3.11 Analog Triggers

    To prevent false triggering due to noise or jitters in the signal, hysteresis can be

    added to the analog trigger. The hysteresis range is specified by percentage of the

    full-scale analog input range. For example, when selecting an analog input channel

    with ±10 V input range as analog trigger source, a 0.1% hysteresis range equals to

    20 mV. Figure 3.14 shows examples of both rising edge and falling edge analog trig-

    ger with hysteresis.

    Figure 3.12 Analog Triggers with Hysteresis

  • Page 36:

    USB-5801 User Manual 28

    3.7 Analog Calibration

    3.7.1 Analog Calibration Overview

    USB-5801 implements a specially designed circuitry for analog calibration. By select-

    ing different calibration sources, each component of the analog functions can be cali-

    brated individually. In addition, the calibration parameter is stored in an electrically-

    erasable programmable read-only memory (EEPROM). The block diagram is shown

    in Figure 3.15.

    Figure 3.13 Block Diagram of Analog Calibration Circuitry

    The major calibration procedures are described as follows:

    1. Voltage reference calibration*: Connect a digital multi-meter (DMM) to the test

    points, and route each of the voltage references (ADC REF, +10 V REF, +5

    VREF, +2 V REF, and +1 V REF) to the test points through the analog multi-

    plexer (MUX). Measure the voltage reference voltage values by the DMM and

    then calibrate.

    2. Analog input calibration: Use the voltage references which is already cali-

    brated as calibration source, route them to the analog input channels (AI n)

    through the MUX and switch and then calibrate. Use the corresponding voltage

    reference for each of the analog input range calibration.

    3. Analog output calibration: Route the analog output channels to the analog

    input 0 which is already calibrated through the MUX and switch and then cali-

    brate.

    4. Store all calibration parameters to the EEPROM.

    *Note: For users who do not have a high precision digital multi-meter (not less than

    6.5 digits), voltage reference calibration can be skipped.

  • Page 37:

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    Chapter 3 Signal Connections

    3.7.2 Voltage References Calibration

    Voltage reference calibration steps:

    1. Connect a digital multi-meter (DMM) with precision not less than 6.5 digits to

    TP17 (positive terminal) and TP19 (negative terminal). Use DC voltage mea-

    surement mode.

    2. In the Navigator, choose one of the voltage references to calibrate. (+10 V, +5 V,

    +2 V, +1 V, or ADC)

    3. Observe the DMM reading and compare it to the "target voltage". Adjust the cor-

    responding calibration parameter. If the reading is too small, increase the

    parameter; on the other hand, decrease the parameter. Repeat this step until

    the DMM reading is within the voltage range specified by "target voltage".

    4. Repeat steps 2 through 3 for all voltage references.

    Figure 3.14 Voltage Reference Calibration

  • Page 38:

    USB-5801 User Manual 30

    3.7.3 Analog Input Calibration

    In the Navigator, select "AI Calibration", click "Start" button, and wait for calibration

    finished.

    Figure 3.15 Analog Input Calibration

    3.7.4 Analog Output Calibration

    In the Navigator, select "AO Calibration", click "Start" button, and wait for calibration

    finished.

    Figure 3.16 Analog Output Calibration

  • Page 39:

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    Chapter 3 Signal Connections

    3.7.5 Store Calibration Parameters to EEPROM

    After all calibration procedures are done, click "Save All" button to store calibration

    parameters into EEPROM. The parameters in the previous calibration procedures

    are temporarily stored in the on-board volatile memory. To prevent from losing those

    parameters after powering off, it is required to store them in a non-volatile memory

    such as an EEPROM.

    Figure 3.17 Store Calibration Parameters to EEPROM

  • Page 40:

    USB-5801 User Manual 32

    3.7.6 Load Default Calibration Parameters from EEPROM

    Users can load the default (factory trimmed) calibration parameters from the

    EEPROM by clicking "Load Default" button if needed. Note that this operation only

    loads the parameters into the on-board volatile memory. To keep them permanently, it

    is required to store them into the EEPROM by clicking "Save All" button.

    Figure 3.18 Load Default Calibration Parameters from EEPROM

  • Page 41:

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    Chapter 3 Signal Connections

    3.8 Digital Input/Output

    3.8.1 Digital Inputs

    The USB-5801 provides 4 channels of digital input (DI) signal measurement with

    2,500 V

    DC

    galvanic isolation. Figure 3.21 shows the functional block diagram of one

    digital input channel.

    Figure 3.19 Digital Input Functional Block Diagram

    When an external voltage (V

    EX

    in Figure 3.21) is applied to the digital input between

    terminals I<0..3> and EC, the isolator output turns on. On the other hand, when the

    external voltage is removed, the isolator output turns off. Users will read logic high

    and logic low for these two circumstances in the software, respectively.

    The value of the external voltage needs to be higher than the input high voltage (VIH)

    specification to turn on the isolator, and be lower than the input low voltage (VIL)

    specification to turn off the isolator. If the external voltage is between VIH and VIL,

    the reading in the software is uncertain and may be high or low.

    The digital inputs accept both polarity of the external voltage.

    3.8.1.1 Digital Input Interrupt

    Users can use digital input signals to generate a software event (interrupt). The inter-

    rupt can occur at the rising edge, falling edge, or both edges of the digital input signal

    as shown in Figure 3.22. The interrupt function can be configured independently for

    each digital input channel.

    Figure 3.20 Digital Input Interrupt

  • Page 42:

    USB-5801 User Manual 34

    3.8.1.2 Digital Input Filter

    To prevent false interrupts due to noise or bouncing in the signal, the digital input sig-

    nals can be filtered. If digital input filter is enabled, transient signals with durations

    smaller than the filter duration will be considered as glitches and will not generate an

    interrupt. This is shown in Figure 3.23. Digital input filter can be enabled/disabled and

    filter duration can be configured independently for each channel.

    Figure 3.21 Digital Input Filter

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    Chapter 3 Signal Connections

    3.8.2 Digital Outputs

    The USB-5801 provides 4 channels of digital output (DO) signal generation with

    2,500 V

    DC

    galvanic isolation. Figure 3.24 shows the functional block diagram of one

    digital output channel.

    Figure 3.22 Digital Output Functional Block Diagram

    The load should be connected between the O<0..3> terminal and the positive termi-

    nal of the external source (VEX), and the ground of the external source should be

    connected to the ground of the USB-5801.

    When the digital output is on, the MOSFET on the USB-5801 closes and provides a

    path for the load current flowing through to the ground. When the digital output is off,

    on the other hand, the MOSFET opens and blocks the path.

    A flyback diode on the PC terminal provides a path for dissipating energy for induc-

    tive load when the digital output becomes off. This prevents the inductive load from

    generating a large back EMF which may damage the module.

    3.9 Counter/Timer

    The USB-5801 provides 2 channels of 32-bit counter/timer measurement with 2,500

    V

    DC

    galvanic isolation. Figure 3.25 shows the functional block diagram of one coun-

    ter/timer channel.

    Figure 3.23 Counter/Timer Functional Block Diagram

    Using different configurations, each counter/timer channel can support multiple func-

    tions. This is described in the following sections.

  • Page 44:

    USB-5801 User Manual 36

    3.9.1 Event Counting

    For event counting function, select external counter clock pin (C<0..1>CLK) as the

    counter clock. The counters can be configured to count (increase by one) when

    either the rising edge or the falling edge of the counter clock occurs. Software can

    read the latest counter value directly. This is shown in Figure 3.26.

    Figure 3.24 Event Counting

    3.9.2 Frequency Measurement (Tachometer)

    For frequency measurement or tachometer function, select internal 50 MHz clock as

    the counter clock and external sample clock pin (C<0..1>SCK) as the sample clock.

    The signal to be measured should be connected to external sample clock pin.

    The counter will count up at a rate of 50 MHz, which means one count is equal to 20

    ns. Each time the signal to be measured rises (or falls according to the configuration),

    the counter value at that time will be stored in a FIFO. By subtracting consecutive two

    counter values (TCA and TCB), the period or the frequency of the signal can be cal-

    culated as shown in the following equations.

    A frequency measurement example is shown in Figure 3.27.

    Figure 3.25 Frequency Measurement

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    Chapter 3 Signal Connections

    3.9.3 Phase Measurement for Analog Input Samples

    When measuring a rotating device, users can use one counter as a tachometer to

    measure the speed of the rotation, and the other counter to measure the phase infor-

    mation of the acquired analog input samples. This is shown in Figure 3.28.

    Figure 3.26 Phase Measurement for Analog Input Samples

    Connect tachometer signal to the external sample clock pin of counter 0 (C0SCK).

    Select internal 50 MHz clock as the counter clock for both counters, external sample

    clock pin as the sample clock for counter 0 (tachometer counter), and analog input

    sample clock as the sample clock for counter 1 (phase counter). Arm both counters

    at the same time, begin analog input acquisition, and then start the rotating device.

    All the information needed to calculate the rotating speed and phase of the AI sam-

    ples will be collected automatically.

    The rotating speed can be calculated as described in the previous section. To calcu-

    late the phase of the acquired analog input samples, users should first find the phase

    counter value related to the specified analog input sample (PC), and then find the

    tachometer counter values just above (TCA) and just below (TCB) the phase counter

    value. Finally, use the following equation to calculate the phase of the analog input

    sample. Note the position where the tachometer pulse occurs is set as a reference

    point (0 degree).

    For example, to calculate the phase of the 1.5 V analog input sample (the second

    sample) in Figure 3.28, first find the corresponding PC, which is 1005. Then find the

    TCA and TCB, which are 1000 and 2000, respectively. Use the previous equation,

    the phase of the 1.5 V analog input sample can be calculated as 1.8°.

  • Page 46:

    USB-5801 User Manual 38

    3.10 Synchronization

    Multiple USB-5801 modules can be synchronized to support more acquisition chan-

    nels.

    Each module has one trigger input pin (TRGIN) and one trigger output pin

    (TRGOUT). To synchronize multiple modules, users must choose one of the modules

    to be the trigger master, and others as trigger slaves. Connect TRGOUT pin of the

    master to TRGIN pin of the first slave, and TRGOUT pin of the first slave to TRGIN

    pin of the second slave if present, and TRGOUT pin of the second slave to TRGIN

    pin of the third slave if present, and so on. This is shown in Figure 3.29.

    Figure 3.27 Multiple Module Synchronization

    Users can select one of the possible trigger sources for the master. However, all

    slaves must use external digital signal on TRGIN pin as the trigger source. When the

    master receives a trigger, the trigger signal level will present at TRGOUT pin immedi-

    ately, which triggers the first slave. Then the TRGOUT pin of the first slaves immedi-

    ately triggers the second slave, and so on.

  • Page 47:

    Appendix A

    A Specifications

  • Page 48:

    USB-5801 User Manual 40

    A.1 Analog Input

    A.1.1 Functions

    A.1.2 ADC Modulator Oversample Rate

    A.1.3 Maximum Operating Voltage

    * Voltages with respect to chassis ground.

    Note: Input coupling must be AC and input configuration must be pseudo-differential

    when IEPE is enabled.

    Channels

    4, simultaneous sampling, can be enabled/disabled each channel

    independently by software

    Input Configuration

    Differential/Pseudo-differential (50 Ω between negative input and

    chassis ground), software selectable per channel

    Input Coupling AC/DC, software selectable per channel

    Input Range ±10 V/±5 V/±2 V/ ±1 V, software selectable per channel

    A/D Converter (ADC)

    Resolution

    24 bits

    A/D Converter (ADC)

    Type

    Delta-sigma

    Sample Rates (f

    s

    )

    Range

    1 kS/s to 192 kS/s (AI sample rate setting must be the same as AO

    update rate)

    Resolution

    68.21 μS/s (1 kS/s to 8 kS/s)

    136.42 μS/s (8 kS/s to 16 kS/s)

    272.84 μS/s (16 kS/s to 32 kS/s)

    545.69 μS/s (32 kS/s to 64 kS/s)

    1.09 mS/s (64 kS/s to 128 kS/s)

    2.18 mS/s (128 kS/s to 192 kS/s)

    FIFO Buffer Size 4,096 samples

    Sample Rate (f

    s

    )

    Oversample Rate

    1 kS/s < f

    s

    < 8 kS/s 128 f

    s

    8 kS/s < f

    s

    ≤ 16 kS/s 64 f

    s

    16 kS/s < f

    s

    ≤ 32 kS/s 32 f

    s

    32 kS/s < f

    s

    ≤ 64 kS/s 64 f

    s

    64 kS/s < f

    s

    ≤ 192 kS/s 32 f

    s

    IEPE Input Coupling Input Configuration Positive Terminal (+)* Negative Terminal (-)*

    Disabled AC Differential ±22 V ±22 V

    Disabled AC Pseudo-differential ±19 V ±9 V

    Disabled DC Differential ±12 V ±12 V

    Disabled DC Pseudo-differential ±12 V ±9 V

    Enabled AC Pseudo-differential 0 ~ +24 V 0 ~ +1 V

  • Page 49:

    41 USB-5801 User Manual

    Appendix A Specifications

    A.1.4 Input Overvoltage Protection

    * Voltages with respect to chassis ground.

    A.1.5 AC Coupled Measurement Accuracy

    A.1.6 DC Coupled Measurement Accuracy

    A.1.7 Input Impedance

    A.1.8 Common-Mode Rejection Ratio (CMRR)

    Input Configuration Positive Terminal (+)* Negative Terminal (-)*

    Differential ±24 V ±24 V

    Pseudo-Differential ±24 V ±10 V

    Gain Error (f

    in

    = 1 kHz)

    Operating temperature within 5 °C of last auto-calibration temperature: < ±0.5 %

    Over full operating temperature range: < ±2.5%

    Offset Error

    Operating temperature within 5 °C of last auto-calibration temperature: < ±1 mV

    Over full operating temperature range: < ±5 mV

    Gain Error

    Operating temperature within 5 °C of last auto-calibration temperature: < ±0.02 %

    Over full operating temperature range: < ±0.1 %

    Offset Error

    Operating temperature within 5 °C of last auto-calibration temperature: < ±0.2 mV

    Over full operating temperature range: < ±0.5 mV

    Input Configuration

    Between Positive Terminal (+)

    and Chassis Ground

    Between Negative Terminal (-)

    and Chassis Ground

    Differential 200 kΩ 200 kΩ

    Pseudo-Differential 200 kΩ 50 Ω

    Input Frequency < 20 kHz: 60 dB

  • Page 50:

    USB-5801 User Manual 42

    A.1.9 Frequency Response

    A.1.10AC Coupling

    A.1.11 Idle Channel Noise

    A.1.12Dynamic Range (DR)

    A.1.13Spurious Free Dynamic Range (SFDR)

    Pass-band ripple: ±0.005 dB

    Pass-band

    ±0.005 dB bandwidth: 0.4 × f

    s

    -0.1 dB bandwidth: 0.409 × f

    s

    -3 dB bandwidth: 0.433 × f

    s

    Stop-band frequency: 0.499 × f

    s

    Stop-band attenuation: > 105 dB

    -3 dB cutoff frequency: 0.796 Hz

    -0.1 dB cutoff frequency: 5.215 Hz

    Input Range

    f

    s

    = 32 kS/s f

    s

    = 128 kS/s f

    s

    = 192 kS/s

    μVrms ENOB μVrms ENOB μVrms ENOB

    ±10.0 V 20.5 19.9 30.8 19.3 30.8 19.3

    ±5.0 V 10.4 19.8 15.8 19.2 15.8 19.2

    ±2.0 V 4.3 19.8 6.7 19.1 7.0 19.1

    ±1.0 V 2.5 19.6 3.9 18.9 4.4 18.8

    Input Range

    Dynamic Range (dB)*

    f

    s

    = 32 kS/s f

    s

    = 128 kS/s f

    s

    = 192 kS/s

    ±10.0 V 108 106 104

    ±5.0 V 105 102 100

    ±2.0 V 102 98 94

    ±1.0 V 98 92 89

    * 1 kHz input tone, unweighted. Input amplitude is -60 dBFS.

    Input Range

    Spurious Free Dynamic Range (dBc)*,**

    f

    s

    = 32 kS/s f

    s

    = 128 kS/s f

    s

    = 192 kS/s

    ±10.0 V 106 107 100

    ±5.0 V 107 107 103

    ±2.0 V 108 108 96

    ±1.0 V 101 104 91

    * 1 kHz input tone, input amplitude is -1 dBFS.

    ** Measurement includes all harmonics.

  • Page 51:

    43 USB-5801 User Manual

    Appendix A Specifications

    A.1.14Signal-to-Noise Ratio (SNR)

    A.1.15Total Harmonic Distortion (THD)

    A.1.16Total Harmonic Distortion Plus Noise (THD+N)

    A.1.17Crosstalk

    Input Range

    Signal-to-Noise Ratio (dB)*

    f

    s

    = 32 kS/s f

    s

    = 128 kS/s f

    s

    = 192 kS/s

    ±10.0 V 105 103 100

    ±5.0 V 103 101 98

    ±2.0 V 98 96 92

    ±1.0 V 93 91 87

    * 1 kHz input tone, input amplitude is -1 dBFS.

    Input Range

    Total Harmonic Distortion (dB)*

    f

    s

    = 32 kS/s f

    s

    = 128 kS/s f

    s

    = 192 kS/s

    ±10.0 V -103 -104 -97

    ±5.0 V -104 -104 -101

    ±2.0 V -108 -106 -102

    ±1.0 V -106 -103 -101

    * 1 kHz input tone, input amplitude is -1 dBFS.

    Input Range Total Harmonic Distortion Plus Noise (dB)*

    f

    s

    = 32 kS/s f

    s

    = 128 kS/s f

    s

    = 192 kS/s

    ±10.0 V -101 -101 -95

    ±5.0 V -100 -99 -96

    ±2.0 V -98 -96 -92

    ±1.0 V -93 -91 -86

    * 1 kHz input tone, input amplitude is -1 dBFS.

    Input Range

    Crosstalk (dBc)*

    32 kS/s

    f

    in

    = 1 kHz

    192 kS/s

    f

    in

    = 20 kHz

    ±10.0 V -104 -100

    ±5.0 V -104 -100

    ±2.0 V -104 -99

    ±1.0 V -103 -97

    * Input amplitude is -1 dBFS.

  • Page 52:

    USB-5801 User Manual 44

    A.1.18Integrated Electronic Piezoelectric Excitation (IEPE)

    A.2 Analog Output

    A.2.1 Functions

    A.2.2 Analog Output Accuracy

    A.2.3 Output Noise

    Current: 0 or 2 mA ± 5%, each channel independently software selectable

    Compliance: 24 V min.

    Fault Detection

    Threshold: < 1.5 V (short), > 19.5 V (open)

    Indication: Software, per channel

    Channels

    2, can be enabled/disabled each channel independently by

    software

    Output Configuration

    Pseudo-differential (50 Ω between negative input and

    chassis ground)

    Output Coupling DC

    Output Range ±10 V/ ±1 V, software selectable per channel

    D/A Converter (DAC) Resolu-

    tion

    24 bits

    D/A Converter (DAC) type Delta-sigma

    Update Rates (fs)

    1 kS/s to 192 kS/s (AO update rate setting must be the

    same as AI sample rate)

    Output Load ≥ 1 kΩ

    FIFO Buffer Size 4,096 samples

    Gain Error

    Operating temperature within 5 °C of last auto-calibration temperature: < ±0.03 %

    Over full operating temperature range: < ±0.15 %

    Offset Error

    Operating temperature within 5 °C of last auto-calibration temperature: < ±0.5 mV

    Over full operating temperature range: < ±2.5 mV

    Output Range

    f

    s

    = 32 kS/s f

    s

    = 128 kS/s f

    s

    = 192 kS/s

    μV

    rms

    μV

    rms

    μV

    rms

    ±10.0 V/±1.0 V 70.7 70.2 60.7

  • Page 53:

    45 USB-5801 User Manual

    Appendix A Specifications

    A.2.4 Spurious Free Dynamic Range (SFDR)

    A.2.5 Signal-to-Noise Ratio (SNR)

    A.2.6 Total Harmonic Distortion (THD)

    A.2.7 Total Harmonic Distortion Plus Noise (THD+N)

    Output Range

    Spurious Free Dynamic Range (dBc)*,**

    f

    s

    = 32 kS/s f

    s

    = 128 kS/s f

    s

    = 192 kS/s

    ±10.0 V 88 91 93

    ±1.0 V 87 89 92

    * 1 kHz output tone, output amplitude is -1 dBFS.

    ** Measurement includes all harmonics.

    Output Range

    Signal-to-Noise Ratio (dB)*

    f

    s

    = 32 kS/s f

    s

    = 128 kS/s f

    s

    = 192 kS/s

    ±10.0 V 86 90 96

    ±1.0 V 77 77 79

    * 1 kHz output tone, output amplitude is -1 dBFS.

    Output Range

    Total Harmonic Distortion (dB)*

    f

    s

    = 32 kS/s f

    s

    = 128 kS/s f

    s

    = 192 kS/s

    ±10.0 V -90 -90 -92

    ±1.0 V -87 -85 -89

    * 1 kHz output tone, output amplitude is -1 dBFS.

    Output Range

    Total Harmonic Distortion Plus Noise (dB)*

    f

    s

    = 32 kS/s f

    s

    = 128 kS/s f

    s

    = 192 kS/s

    ±10.0 V -85 -87 -91

    ±1.0 V -76 -76 -79

    * 1 kHz output tone, output amplitude is -1 dBFS.

  • Page 54:

    USB-5801 User Manual 46

    A.3 Triggers

    A.3.1 Analog Trigger Input

    A.3.2 Digital Trigger Input

    A.3.3 Digital Trigger Output

    A.4 Tachometer

    Trigger Function Start trigger/stop trigger/index trigger

    Source Any analog input channel

    Threshold Level Full scale of analog input range, software programmable

    Resolution 24 bits

    Hysteresis Programmable

    Polarity Rising edge/falling edge, software selectable

    Source 1 external digital trigger input

    Input Voltage

    Logic 0 < +1.5 V (-0.5 V min.)

    Logic 1 > +3.5 V (+5.5 V max.)

    Pull-up Resistor 10 kΩ

    Polarity Rising edge/falling edge, software selectable

    Minimum Pulse Width 500 ns

    Isolation Protection

    2,500 V

    DC

    Channels 1

    Source

    Analog trigger input/digital trigger input/software trigger, software

    selectable

    Output Voltage

    Logic 0 < +0.5 V

    Logic 1 > +4.5 V

    Isolation Protection

    2,500 V

    DC

    Channels 2

    Functions Frequency (period) measurement

    Input Voltage (referenced to GND pin)

    Logic 0 < +3 V (-30 V min.)

    Logic 1 > +10 V (+30 V max.)

    Input Frequency 5 kHz max.

    Digital Filter 16 μs ~ 131 ms

    Isolation Protection

    2,500 V

    DC

  • Page 55:

    47 USB-5801 User Manual

    Appendix A Specifications

    A.5 Digital I/O

    A.5.1 Digital Input

    A.5.2 Digital Output

    Channels 4

    Input Voltage (referenced to ECOM pin)

    Logic 0 -3 V ~ +3 V

    Logic 1 > +10 V (+30 V max.) or < -10 V (-30 V min.)

    Opto-Isolator Response Time 100 μs

    Digital Filter 16 μs ~ 131 ms

    Isolation Protection

    2,500 V

    DC

    Channels 4

    Load Voltage

    (referenced to GND pin)

    5 ~ 40 V

    DC

    Load Current 350 mA/ch (sink)

    Opto-Isolator Response Time 100 μs

    Isolation Protection

    2,500 V

    DC

  • Page 56:

    USB-5801 User Manual 48

    A.6 General Specifications

    A.6.1 Bus Interface

    A.6.2 Power Requirements

    A.6.3 Physical

    A.6.4 Environmental

    Interface USB 3.0

    Data Transfer Rate 5 Gbps

    Power Consumption

    150 mA typ./200 mA max. @ 24 V external power

    700 mA typ./860 mA max. @ 5 V bus power

    Dimensions 168 mm x 120 mm x 45 mm

    Weight 290 g

    I/O Connector

    BNC x 6 (AI & AO)

    10-pin 3.81 mm terminal x 2 (tachometer & DI/O)

    3-pin 3.81 mm terminal x 2 (power)

    USB 3.0 type A (downstream port)

    USB 3.0 type B (upstream port)

    Operating Temperature 0 to 60 °C (32 to 140 °F)

    Storage Temperature -40 to 70 °C (-40 to 158 °F)

    Operating Humidity 10 to 90% RH, non-condensing

    Storage Humidity 5 to 95% RH, non-condensing

    Indoor Use Only.

  • Page 57:

    49 USB-5801 User Manual

    Appendix A Specifications

  • Page 58:

    www.advantech.com

    Please verify specifications before quoting. This guide is intended for reference

    purposes only.

    All product specifications are subject to change without notice.

    No part of this publication may be reproduced in any form or by any means,

    such as electronically, by photocopying, recording, or otherwise, without prior

    written permission from the publisher.

    All brand and product names are trademarks or registered trademarks of their

    respective companies.

    © Advantech Co., Ltd. 2019

DOC-720d1b41:

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