USB-5817-AE - Module d'acquisition de données Advantech - Free user manual and instructions

Product Type	Industrial Isolated Analog Input USB 3.0 I/O Module
Model	USB-5817-AE
Brand	Advantech
Dimensions	120 x 120 x 40 mm (4.72 x 4.72 x 1.57 in)
Power Supply	USB bus power (5 V) or external 10–30 V DC; redundant input; consumption: 350 mA typ. @ 5 V (USB), 100 mA typ. @ 24 V (external)
Analog Input Channels	8 differential, software-selectable enable
ADC Resolution	16 bits (15 bits for current measurement)
Maximum Sample Rate	200 kS/s (shared among all enabled channels)
Isolation	2,500 V DC isolation
Input Range	Voltage: ±10 V; Current: 0–20 mA
Common-Mode Voltage Range	±275 V
Operating Temperature	0 to 60 °C (32 to 140 °F)
Input Impedance	Differential: 800 kΩ; Common mode: 200 kΩ
FIFO Size	4,096 samples (shared among enabled channels)
Connectors	2 x 10-pin terminal block (AI), 2 x 3-pin terminal block (power), USB 3.0 Type A (downstream), USB 3.0 Type B (upstream)
Supported Operating Systems	Windows XP, 7, 8, 10
Accessories Included	1 x module, 4 x terminal blocks, 1 x startup manual, 1 x USB 3.0 lockable cable (1 m)
Warranty	2 years from date of purchase
Compliance	CE (using shielded cables)

Frequently Asked Questions - USB-5817-AE Advantech

How do I install the USB-5817-AE driver?

Download the Advantech DAQNavi driver package from the Advantech website. Run the installer and follow the on-screen instructions. It is recommended to install the driver before connecting the module.

Can I use the USB-5817-AE without external power?

Yes, the module can be powered via USB bus power (5 V) when no device is connected to the downstream USB port. For daisy-chaining more than two modules, an external power supply (10–30 V DC) is required.

How do I configure the analog input channels for voltage or current measurement?

Use DIP switches SW2 to SW9 on the module. Each switch corresponds to a channel (AI0–AI7). Set to ON for voltage (±10 V) or OFF for current (0–20 mA). Default is voltage.

What is the maximum sampling rate per channel?

The total ADC sample rate is 200 kS/s shared among all enabled channels. For example, if 4 channels are enabled, each channel samples at 50 kS/s. The per-channel rate = 200 kS/s divided by the number of enabled channels.

How do I set the Board ID for multiple modules?

Use the built-in DIP switch (SW1) to set a unique Board ID (0–15) for each module. Refer to Table 3.1 in the manual for switch positions. The default ID is 0.

What software is available for the USB-5817-AE?

Advantech provides DAQNavi software including device drivers, SDK, and examples. It supports development in Visual Studio.NET, Visual C++, Visual Basic, Delphi, and C++ Builder. LabVIEW support is also available.

How do I calibrate the analog inputs?

Use the Advantech Navigator utility. Set all channels to voltage mode via DIP switches. Select a channel, perform offset calibration with an input around -9.995 V, then gain calibration with an input around +9.995 V. Adjust parameters until the AI value falls within the target range.

What are the LED indicators on the front panel?

The module has three LEDs: Power (green when powered), Up/Error (green when USB upstream is connected, red if disconnected), and Down (blue when downstream port is connected).

Can I daisy-chain multiple USB-5817 modules?

Yes, the built-in USB hub supports daisy-chain topology. Connect the upstream port of one module to the downstream port of another. If more than two modules are connected, an external power supply is required to meet USB 3.0 current limits.

What should I do if the module is not recognized by my computer?

Ensure the driver is installed before connecting the module. Check that the USB cable is securely connected and the module is powered (Power LED green). If using external power, verify the voltage is within 10–30 V DC. Restart the computer or try a different USB port.

USER MANUAL USB-5817-AE Advantech

Illustration of a computer motherboard with two electronic components, one shown in green outline (no text or symbols)

USB-5817

8-Channel, 16-Bit, 200 kS/s Isolated Analog Input USB 3.0 I/O Module

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 information 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 problem 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 merchandise authorization (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 purchase 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. 2001581700 Edition 1

Printed in China April 2019

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-5817 module
4 x terminal blocks
■ 1 x USB-5817 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 sudden rush of power after connecting a jumper or installing a card may damage sensitive electronic components.

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-5817 Device Settings 13
Figure 2.7 Device Settings Page 14
Figure 2.8 USB-5817 Device Testing 14

Chapter 3 Signal Connections....15

3.1 Overview 16
3.2 Dimensions 16
3.3 Switch and Pin Assignments.... 17

Figure 3.1 Jumper and Switch Locations.... 17

3.3.1 Board ID.... 18
Table 3.1: Board ID Setting 18
3.3.2 Switch 18
3.3.3 LED Indicators 18

Table 3.2: Power 18
Table 3.3: Up/Error 19
Table 3.4: Down 19

3.4 Analog Input Connections 19

3.4.1 Analog Input Overview.... 19

Figure 3.2 Analog Input Front End.... 19
Figure 3.3 Analog Input Data Processing 20

3.4.2 Analog Input Range 20

Figure 3.4 Voltage Input Measurement 20
Figure 3.5 Current Input Measurement.... 20

3.4.3 Analog Input Common-Mode Voltage.... 21

Figure 3.6 High Common-Mode Voltage Input 21
Figure 3.7 Battery Stack Measurement Application.... 21

3.4.4 Analog Input Acquisition Method 22

Figure 3.8 Channel Scanning Structure.... 22

3.4.5 Analog Input Sample Rate 22
3.4.6 Analog Input Triggering.... 22
3.4.7 Analog Input Signal Connection.... 23

Figure 3.9 Pin Assignments.... 23

Table 3.5: Pin Functions.... 23

Figure 3.10 Analog Input Signal Connection ...... 23

3.4.8 Analog Input Calibration 24

Table 3.6: Analog Input Calibration. 24

Appendix A Specifications.... 25

A.1 Analog Input.... 26

A.2 General Specifications 26

Chapter 1

Introduction

This chapter provides an introduction to USB-5817 and its typical applications.

Features
Applications
Installation Guide
■ Software Overview
Accessories

Advantech's USB-5817 is an industrial isolated analog input USB 3.0 I/O module. To ensure easy installation in cabinet computers, USB-5817 modules are compact and equipped with a DIN-rail mount kit. The built-in USB hub can support a daisy-chain topology, while Euro-type pluggable terminal blocks and LED indicators facilitate configuration and maintenance.

1.1 Features

USB 3.0 SuperSpeed
■ Daisy chaining support via built-in USB hub
■ 8 x 16-bit analog input channels with 2,500 V DC isolation
■ Supports current measurements
■ Wide common-mode voltage range (±275 V)
■ Removable European-type connector
■ Compatible with Windows XP/7/8/10 operating systems

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 maintenance, 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 topologies. 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 two modules are connected via the hub, an external power supply unit (PSU) will be required. Please refer to the image below.

graph LR
    A["IPC"] --> B["PSU"]
    B --> C["IPC"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333

Redundant Power

USB-5817 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-5817 modules can operate 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-5817 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-5817 module
■ 1 x USB-5817 user manual
■ Advantech DAQNavi driver software
1 x Personal computer or workstation with a USB interface (and 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-5817 module. Figure 1.1 is a flowchart that provides a broad overview of the software and hardware installation procedures.

graph TD
    A["Install driver and turn off computer"] --> B["Install hardware and turn on computer"]
    B --> C["Use driver utility to configure hardware"]
    C --> D["Use test utility to test hardware"]
    D --> E["Read examples & driver manual"]
    E --> F["Start writing your own application"]

Figure 1.1 Installation Flowchart

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-5817 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 sections 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. Alternatively, 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.

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

These APIs can be categorized into several groups according to their function or purpose.

■ 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-5817 module:

Power supply unit

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

Chapter 2

Installation

This chapter includes a packing checklist, instructions for unpacking, and step-by-step procedures for both driver and card installation.

■ Unpacking Instructions
Driver Installation
Hardware Installation
■ Device Setup and Configuration

2.1 Unpacking Instructions

After receiving your USB-5817 module, inspect the package contents to ensure that the following items are present:

1 x USB-5817 module
4 x Terminal blocks
■ 1 x USB-5817 startup manual
■ 1 x USB 3.0 lockable cable (1 m)

The USB-5817 module contains electronic components that are vulnerable to electrostatic discharge (ESD). ESD can easily damage the integrated circuits and components if preventive measures are not carefully implemented. Before removing the module from the antistatic plastic bag, take the following precautions to prevent possible 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 visibly 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.

2.2 Driver Installation

We recommend installing the drivers before installing the USB-5817 module to guarantee 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-5817 driver package.
2. The Advantech DAQNavi driver installation wizard program should launch automatically. Figures 2.1 to 2.5 show the various pages of the installation wizard interface.

Figure 2.1 Advantech DAQnavi Installation Wizard

Figure 2.2 Driver Installation Setup Screen

1. 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

Figure 2.4 Driver Installation Process

1. After the driver is successfully installed, click the "Finish" button to exit the installation wizard.

Figure 2.5 Exit the Driver Installation Wizard

2.3 Hardware Installation

Note! Ensure that the relevant driver is installed before installing the USB-5817 module. (Refer to Section 2.2 "Driver Installation" for more information.)

After the device drivers are installed, the USB-5817 module can be installed in your computer. We recommend referring to the computer user manual or related documentation 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-5817 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.

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-5817 device settings.

Setting Up a Device

1. To install an I/O device or module, first initialize the Advantech Navigator program (Start/Programs/Advantech Automation/Navigator for DN4).
2. Users can view the device(s) already installed on the system (if any) by accessing the Installed Devices list. Once the software/hardware installation is complete, the USB-5817 module should be included in the Installed Devices list.

Figure 2.6 USB-5817 Device Settings

Configuring the Device

1. Go to the Device Setting page to configure the device. The items in the page allow users to configure the USB-5817 modules' analog input.

Figure 2.7 Device Settings Page

1. 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-5817 Device Testing

For more detailed information, please refer to the DAQNavi SDK manual or the Advantech Navigator user interface manual.

Chapter 3

Signal Connections

This chapter explains how to connect input and output signals to the USB-5817 module via the I/O connector.

Overview
Board ID Settings
Signal Connections
Field Wiring Considerations

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 connection 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

3.3 Switch and Pin Assignments

The jumper and switch locations on the USB-5817 module are shown in Figure 3.1.

Figure 3.1 Jumper and Switch Locations

3.3.1 Board ID

USB-5817 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.

When configuring the board ID to any other value, refer to the settings in the following table:

Table 3.1: Board ID Setting
SW1 Position 1 Position 2 Position 3 Position 4

BoardID ID3 ID2 ID1 ID0
0	O	N	O	N	O
1	O	N	O	N	O
2	O	N	O	N	O
3	O	N	O	N	O
4	O	N	O	F	F
5	O	N	O	F	F
6	O	N	O	F	F
7	O	N	O	F	F
8	OFF	ON	ON	ON
9	OFF	ON	ON	OFF
10	OFF	ON	OFF	ON
11	OFF	ON	OFF	OFF
12	OFF	OFF	ON	ON
13	OFF	OFF	ON	OFF
14	OFF	OFF	OFF	ON
15	OFF	OFF	OFF	OFF

Note: The default setting is 0.

3.3.2 Switch

SW2 \~ SW9 are used to configure the analog input signals to measure either the voltage ( ±10 V) or current (0 \~ 20 mA). The default setting is voltage.

3.3.3 LED Indicators

Table 3.2: Power

State	Description
Off	Module is not powered on
Green	Module is powered on using either USB bus power or external power

Table 3.3: Up/Error

State Condition
Green	Upstream port is connected. Module is functioning normally
Red Upstream port is not connected/disconnected. Module function is halted

Table 3.4: Down

State Description

Off Downstream port is not connected

Blue Downstream port is connected

3.4 Analog Input Connections

3.4.1 Analog Input Overview

A block diagram of the USB-5817 analog input front end is provided as Figure 3.2.

graph LR
    A["Voltage/Current Measurement Select"] --> B["Al 0"]
    C["High Common-Mode Amplifier"] --> D["Noise and Anti-Aliasing Filter"]
    D --> E["MUX"]
    E --> F["ADC Driver"]
    F --> G["ADC"]
    H["Euro-style Terminal Block"] --> I["Al 7"]
    I --> J["High Common-Mode Amplifier"]
    J --> K["Noise and Anti-Aliasing Filter"]
    K --> L["MUX"]

Figure 3.2 Analog Input Front End

The analog input signals enter the USB-5817 through Euro-style terminal blocks. Each channel can be individually configured as a voltage or current measurement using DIP switches. Additionally, every channel is equipped with a high common-mode voltage amplifier for applications where the common-mode voltage of the measured signal is very high. Each channel also has a low-pass noise and anti-aliasing filter for removing unwanted out-of-band noise and alias components. The multiplexer (MUX) routes one analog input channel at a time to the analog-to-digital converter (ADC) through the ADC driver.

The analog signals are converted into digital data by the ADC. After offset and gain correction, the data is written into the first-in-first-out (FIFO) buffer for buffered analog input measurement, or directly transmitted to the USB 3.0 interface for an immediate analog input measurement (see Figure 3.3).

graph LR
    A["ADC"] --> B["Offset/Gain Correction"]
    B --> C["FIFO"]
    C --> D["Buffered AI"]
    C --> E["Instant AI"]
    D --> F["USB 3.0 Interface"]
    E --> F
    F --> G["USB 3.0 bus"]
    G --> H["Host"]

Figure 3.3 Analog Input Data Processing

3.4.2 Analog Input Range

All of the USB-5817 module's analog input channels can measure either voltage or current signal input. The voltage/current measurement settings can be configured for each channel separately using a DIP switch.

3.4.2.1 Voltage Input Measurement

For voltage measurement, the input range is ±10 V. Users should not apply an input voltage outside of this range because this may damage the hardware.

Figure 3.4 Voltage Input Measurement

The USB-5817 module is equipped with a 16-bit ADC, which means the input voltage can be converted to one of 65,536 ( 2^16 ) codes. For a ±10 V input range, the voltage resolution can be calculated as

$$ \frac {1 0 V - (- 1 0 V)}{6 5 , 5 3 6} = 3 0 5 \mu V $$

Due to offset and gain correction, the resolution may vary, but only by a small quantity that can be neglected.

3.4.2.2 Current Input Measurement

For current measurement, the input range is 0 \~ 20 mA. Users should not apply an input current outside of this input range because this may damage the hardware.

Figure 3.5 Current Input Measurement

A precision 500 Ω resistor converts the 0 \~ 20 mA input current into a 0 \~ 10 V voltage for measurement. The conversion formula can be expressed as

$$ I = \frac {V}{0 . 5 k \Omega} $$

where I is the measured current in mA and V is the measured voltage in V.

Because the voltage resolution is equal to the voltage measurement, the current resolution can be calculated as

$$ \frac {3 0 5 \mu \mathrm{V}}{5 0 0 \Omega} = 0. 6 1 \mu \mathrm{A} $$

Due to offset and gain correction, the resolution may vary, but only for a small quantity that can be neglected.

3.4.3 Analog Input Common-Mode Voltage

Every analog input channel of the USB-5817 module is equipped with a high common-mode voltage amplifier. This enables the analog input to accept signals with a common-mode voltage of up to ±275 V.

Figure 3.6 High Common-Mode Voltage Input

High common-mode voltage input is suitable for applications such as battery cell voltage monitoring, high-voltage current sensing, or power-supply current monitoring. With these applications, the measured signals may include a high common-mode voltage value. Such signals can damage measurement devices without the ability to withstand high common-mode voltage.

Figure 3.7 Battery Stack Measurement Application

3.4.4 Analog Input Acquisition Method

USB-5817 uses a channel scanning-type structure for analog input. A MUX routes signals from enabled analog input channels to the ADC, one channel at a time.

graph LR
    A["AI 0"] --> MUX
    B["AI 1"] --> MUX
    C["..."] --> MUX
    D["AI 7"] --> MUX
    MUX --> E["ADC"]

Figure 3.8 Channel Scanning Structure

Each analog input channel can be enabled or disabled independently via software. Only the enabled channels will be routed to the ADC by the MUX. The scanning sequence is determined by the channel number. For example, if only Channels 1, 2, 4, and 5 are enabled, the scanning sequence will be Channel 1, Channel 2, Channel 4, Channel 5, Channel 1, Channel 2, and so on.

3.4.5 Analog Input Sample Rate

The USB-5817 module uses an internal 40 MHz clock as the time base. The sample clock of the ADC is generated by dividing the time base by a specified integer. However, the frequency of the sample clock cannot exceed the ADC's specification, which is 200 kS/s. Therefore, the possible ADC sample rate ( f_ADC ) is

$$ f _ {A D C} = \frac {4 0 M H z}{N} $$

where N is an integer with a range of 200 to 2^32 - 1 .

Because all analog input channels use the same ADC for data conversion, the ADC sample rate is shared. The actual sample rate for each channel (f_S) depends on the number of enabled channels (N_CH) and can be calculated as

$$ f _ {S} = \frac {f _ {A D C}}{N _ {C H}} = \frac {4 0 M H z}{N \times N _ {C H}} $$

3.4.6 Analog Input Triggering

The USB-5817 module only supports analog input triggering via software.

3.4.7 Analog Input Signal Connection

3.4.7.1 Pin Assignments

The pin assignments for the USB-5817 module are shown in Figure 3.9. The function of each pin is listed in Table 3.5.

Figure 3.9 Pin Assignments

Table 3.5: Pin Functions

Pin Name Type Description

AI<0...7>+ Input Positive terminal of analog input channel 0 through 7

AI<0...7>- Input Negative terminal of analog input channel 0 through 7

GND N/A Ground

3.4.7.2 Signal Connection Function

The signal connection of the USB-5817 module's analog input function is shown in Figure 3.10. To prevent the input voltage from drifting outside of the acceptable range for a floating source, a bias resistor must be connected between the negative terminal of the analog input and ground. The resistance should be approximately 100 times the source impedance of the floating source.

Figure 3.10 Analog Input Signal Connection

3.4.8 Analog Input Calibration

Follow the steps below to calibrate the analog inputs.

1. Set all analog input channels to "voltage input" mode using DIP switches (SW2 \~ SW9).
2. Select one analog input channel to calibrate.
3. Select "Offset" for type.
4. Input a DC voltage within the range specified by "Input Voltage" into the analog input channel undergoing offset calibration.
5. Click "Start" to begin calibration.
6. Compare "AI Value" with "Target Value" and adjust the offset calibration parameter. If the value is too low, increase the parameter. Alternatively, if the value is too high, reduce the parameter. Repeat this step until the "AI Value" is within the range specified by "Target Value".
7. Click "Finish" and select "Gain" for type.
8. Input a DC voltage within the range specified by "Input Voltage" into the AI channel undergoing gain calibration.
9. Click "Start" to begin calibration.
10. Compare "AI Value" with "Target Value" and adjust the gain calibration parameter. If the value is too low, increase the parameter. Alternatively, if the value is too high, reduce the parameter. Repeat this step until the "AI Value" is within the range specified by "Target Value".
11. Click "Finish" and again select "Offset" for type.
12. Input a DC voltage within the range specified by "Input Voltage" into the AI channel being calibrated. Then click "Start".
13. If the "AI value" is still within the range specified by "Target Value", proceed to the next step. Otherwise, go back to Step 3.
14. If all analog input channels are calibrated, proceed to the next step. Otherwise, go back to Step 2 to calibrate the next analog input channel.
15. Continue calibration until all the analog input channels are calibrated.

Table 3.6: Analog Input Calibration.
Type Input Voltage Target Value

Offset -9.9955 ~ -9.9945 V 15 ~ 17
Gain +9.9945 ~ +9.9955 V	65519 ~ 65521

Appendix A

Specifications

A.1 Analog Input

Number of Input Channels	8 differential channels, can be enabled/disabled independently via software
A/D Converter (ADC) Resolution 16 bits	(15 bits for current measurement)
A/D Converter (ADC) Type Successive approximation (SAR)
Maximum Sample Rates ( f_s )	200 kS/s shared by all channels
Input Coupling DC
Input Range ±10 V, 0 ~ 20 mA
Input Common-Mode Voltage Range ±275 V
Absolute Accuracy	Offset error: < 1 mV
	Gain error: < 0.01% of full-scale range[1]
Temperature Drift	Offset drift: 25 ppm/°C
	Gain drift: 15 ppm/°C
Bandwidth (-3dB) 10 kHz
Idle Channel Noise	0.27 mV_RMS (16 bits ENOB)
Signal-to-Noise Ratio (SNR) 87 dB
Total Harmonic Distortion (THD) -98 dB
Total Harmonic Distortion Plus Noise (THD+N)	-87 dB
Spurious-Free Dynamic Range (SFDR)	102 dB
Input Impedance	Differential: 800 kΩ
	Common mode: 200 kΩ
Input FIFO Size 4,096 samples shared among enabled channels

1 Because of the calibration mechanism, a tiny range (<0.02% of full-scale range) near the maximum or minimum input range may be clipped. This will be observed, for example, when input voltages are in the range of -9.99756 V to -10 V but the measured values are all -9.99756 V.

A.2 General Specifications

Connectors	2 x 10-pin terminal block (3.81 mm, analog input)2 x 3-pin screw terminal block (3.81 mm, power)USB 3.0 type A (downstream port)USB 3.0 type B (upstream port)
Dimensions	120 x 120 x 40 mm^3 (4.72 x 4.72 x 1.57 in ^3 )
Operating Temperature	0 ~ 60 °C (32 ~ 140 °F)
Storage Temperature	-40 ~ 70 °C (-40 ~ 158 °F)
Operating Humidity	10 to 90% RH, non-condensing
Storage Humidity	5 to 95% RH, non-condensing
Power Consumption	When using USB bus power: 350 mA typ. @ 5 V
	When using external power: 100 mA typ. @ 24 V
ESD Protection	Air: ±8 kV/Contact: ±6 kV
DC Surge Protection	2 kV

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

All product specifications are subject to change without notice.

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© Advantech Co., Ltd. 2019