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User’s Guide
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USB-4761
8 Channel Relay/Isolated DI
USB Data Acquisition Module
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USB-4761 8-channel Relay / Isolated DI USB Data Acquisition Module User Manual
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Contents Chapter 1 Introduction ..................................................... 2 1.1 Features ............................................................................. 2 1.1.1 Robust Protection ........................................................... 3 1.1.2 Wide Input Range .......................................................... 3 1.1.3 Reset Protection for Industrial Applications .................. 3 1.1.4 Plug & Play Function .......................................
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Table 3.1:I/O Connector Signal Description ............... 24 3.2.3 LED Indicator Status Description ................................ 24 Table 3.2:LED Indicator Status Description ................ 24 3.3 Isolated Digital Input Connections.................................. 25 3.3.1 Single-ended Channel Connections ............................. 25 Figure 3.2:Isolated Digital Input Connections ............. 25 3.4 Relay Connections........................................................... 25
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1 2 Introduction This chapter will provide information on the features of the DAS module, a quick start guide for installation, and some brief information on software and accessories for the USB-4761 Module. Sections include: • Features • Applications • Installation Guide • Software Overview • Device Driver Programming
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Chapter 1 Introduction Thank you for buying the USB-4761 data acquisition module. The USB- 4761 is a powerful data acquisition (DAS) module for the USB port. It features a unique circuit design and complete functions for data acquisition and control. 1.1 Features USB-4761 has the most requested measurement & control functions: • 8 relay output (Form C) and 8 isolated digital input channels • LED indicators to show activated relays • High-voltage isolation on input chan
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1.1.1 Robust Protection The USB-4761 digital input channels feature a robust isolation protection for industrial, lab and machinery automation applications. It durably withstands voltage up to 2,500 VDC, preventing your host system from any incidental harms. If connected to an external input source with surge protection, the USB-4761 can offer up to a maximum of 2,000 VDC ESD (Electrostatic Discharge) protection. 1.1.2 Wide Input Range The USB-4761 has a wide range of input voltage f
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1.2 Applications • Industrial On/Off control • Switch status sensing • Digital I/O control • Industrial and lab automation • SMT/PCB machinery • Semi-conductor machinery • PC-based Industrial Machinery • Testing & Measurement • Laboratory & Education • External relay driving 1.3 Installation Guide Before you install your USB-4761 module, please make sure you have the following necessary components: • USB-4761 DAS Module • Shielded
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Figure 1.1: Installation Flow Chart 5 Chapter 1
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1.4 Software Overview OMEGA offers a rich set of DLL drivers, third-party driver support and application software to help fully exploit the functions of your USB-4761 module: • Device Drivers (on the companion CD-ROM) 1.4.1 Programming Choices for DA&C Module: You may use the application software like the Device Drivers. On the other hand, advanced users are allowed to use register- level programming as another option, although this is not recommended due to its laborious and
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1.5 Device Driver Programming This section will provide a roadmap to demonstrate how to build an appli- cation from scratch using the Device Drivers with your favorite development tools such as Visual C++, Visual Basic. The step-by-step instructions on how to build your own applications using each development tool will be given in the Device Drivers Manual. Moreover, a rich set of example source code is also given for your reference. 1.5.1 Programming Tools Programmers can develop
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1.5.2 Programming with Device Drivers Function Library The Device Drivers offer a rich function library that can be utilized in various application programs. This function library consists of numerous APIs that support many development tools, such as Visual C++, Visual Basic. 1.5.3 Troubleshooting Device Drivers Error Driver functions will return a status code when they are called to perform a certain task for the application. When a function returns a code that is not zero, it means
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2 2 Installation This chapter has a package item check- list, proper instructions about unpack- ing and step-by-step procedures for both driver and USB installation.. Sections include: • Unpacking • Driver Installation • Hardware Installation • Device Setup & Configuration • Device Testing • Hardware Uninstallation
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Chapter 2 Installation 2.1 Unpacking After receiving your USB-4761 package, please inspect its contents first. The package should contain the following items: • USB-4761 Module • Shielded USB 2.0 Cable (1.8 m) • Companion CD-ROM (DLL driver included) The USB-4761 Module harbors certain electronic components vulnerable to electrostatic discharge (ESD). ESD could easily damage the integrated circuits and certain components if preventive measures are not carefully pai
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2.2 Driver Installation We recommend you install the software driver before you install the USB-4761 module into your system, since this will guarantee a smooth installation process. The 32-bit DLL driver Setup program for the USB-4761 module is included on the companion CD-ROM that is shipped with your module package. Please follow the steps below to install the driver software: Step 1: Insert the companion CD-ROM into your CD-ROM drive. Step 2: The Setup program will be laun
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Step3: Click Continue, and select the Installation option Step4: Select the specific device and then just follow the installation instructions step by step to complete your device driver installation and setup. For further information on driver-related issues, an online version of the Device Drivers Manual is available by accessing the following path: Start/Programs/Omega USB-4700 Series/ Device Driver’s Manual 2.3 Hardware Installation Note: Make sure you have installed the
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Figure 2.2: Device Name on the Device Manager Note: If your module is properly installed, you should see the device name of your module listed on the Device Manager tab. If you see your device name listed, but marked with an exclamation sign “!” , it means your module has not been correctly installed. In this case, remove the mod- ule from Device Manager by selecting its device name and press the Remove button. Then go through the driver installation process again.
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After your module is properly installed with your system, you can now configure your device using the Device Manager that has itself already been installed on your system during driver setup. A complete device installation procedure should include device setup, configuration and testing. The following sections will guide you through the Setup, Configuration and Testing of your device. 2.4 Device Setup & Configuration Device Manager is a utility t
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Step2: You can view the device(s) already installed on your system (if any) in the Installed Devices list box. If you haven’t installed any devices, you might see a blank list. Figure 2.4: Device Manager Dialog Box Note: If you have properly installed the device driver but still can’t find it in Device Manager, please close the Device Manager and restart it. 2.4.2 Configuring the Device Step 3: Click “Setup” button and you will see the “Device Setting “dialog box as follow
