Summary of Contents for Omega Engineering USB-4761
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User’ s Guide Shop online at omega.com e-mail: info@omega.com For latest product manuals: omegamanual.info USB-4761 8 Channel Relay/Isolated DI USB Data Acquisition Module...
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Relay Output ... 28 General ... 29 Appendix B Function Block... 32 USB-4761 User Manual Table 3.1:I/O Connector Signal Description ... 24 LED Indicator Status Description ... 24 Table 3.2:LED Indicator Status Description ... 24 Single-ended Channel Connections ... 25 Figure 3.2:Isolated Digital Input Connections ...
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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 •...
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.
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 from 5 to 30 V , and it is suitable for most industrial applications with 12 and 24 V input volt- age.
• 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 USB 2.0 cable (1.8 m) •...
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.
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.
To troubleshoot the Device Drivers error, you can pass the error code to DRV_GetErrorMessage function to return the error message. Alternatively, you can refer to the Device Drivers Error Codes Appendix in the Device Drivers Manual for a detailed listing of Error Codes, Error IDs and the Error Messages. USB-4761 User Manual...
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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 •...
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).
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.
Section 2.2 Driver Installation) After the DLL driver installation is completed, you can now go on to install the USB-4761 module in any USB port that supports the USB 1.1/2.0 standard, on your computer. It is suggested that you refer to the computer’s user manual or related documentation if you have any...
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.
2.4.1 Setting Up the Device Step 1: To complete the device setup and configuration procedures, you must first install the device along with its driver. (Please refer to the previous section of Chapter 2 for detailed installation instructions). USB-4761 User Manual...
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.
Test Button in the I/O Device Installation dialog window. In the Device Test dialog window, you are free to test the functions of USB-4761 on Digital input and Digital output tabs. USB-4761 User Manual...
2.5.1 Testing Digital Input Function Click the Digital Input tab to show the Digital Input test panel as seen below. By the color of the LEDs, you can easily discern whether the sta- tus of each digital input channel is high or low. Figure 2.6: Digital Input Tab in Device Test Dialog 2.5.2 Testing Digital Output Function Click the Digital Output tab to bring up the Digital Output test panel as...
Though the USB modules are hot swappable, we still recommend you to follow the hardware un-installation procedure to avoid any unpredictable damages to your device or your system. Step1: Close the applications of the USB module (ex. DeviceManager). USB-4761 User Manual...
Step2: Right click the “Unplug or Eject Hardware” icon on your task bar. Figure 2.8: Unplug or Eject Hardware Dialog Step3: Select “USB4711 Device” and press “Stop” Button. Figure 2.9: Stop a Hardware device dialog box Chapter 2...
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Step4: Unplug your USB device from the USB port. Note: Please make sure that you have closed the application programs before unplugging the USB device, otherwise some unexpected system errors or damages may hap- pen. USB-4761 User Manual...
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Signal Connections This chapter provides useful informa- tion on how to connect input and output signals to the USB-4761 via the I/O connectors.. Sections include: • Overview • I/O Connectors • Field Wiring Considerations...
A good signal connection can avoid unnecessary and costly damage to your PC and other hardware devices. 3.2 I/O Connectors USB-4761 is equipped with plug-in screw-terminal connectors that facilitate connection to the module without terminal boards or cables. 3.2.1 Pin Assignment Figure 3.1 on next page shows the pin assignments for the five 10-pin I/O...
Table 3.2: LED Indicator Status Description LED Status Slow Blinking (5 times) Fast Blinking (Depends on data transfer speed). USB-4761 User Manual Description Normally Open pin of relay output Common pin of relay output Normally Close pin of relay output...
3.3 Isolated Digital Input Connections 3.3.1 Single-ended Channel Connections USB-4761 has 8 isolated digital input channels. Each of isolated digital input channel accepts 10~30 V tional input. It means that you can apply positive or negative voltage to an isolated input pin (Vin ). The figure below shows how to connect an external input source to one of the card's isolated input channels.
3.5 Field Wiring Considerations • When you use USB-4761 to acquire data from outside, noises in the environment might significantly affect the accuracy of your measure- ments if due cautions are not taken. The following measures will be helpful to reduce possible interference running signal wires between signal sources and the USB-4761.
Relay Type Rating (Resistive) Max. Switching Power Max.Switching Voltage Max. Switching Current Breakdown Voltage Operate time Release time Insulation Resistance Life Expectancy USB-4761 User Manual 2,500 VDC 25us VIH (max.) VIH (min.) VIL (max,) 5VDC 12VDC 24VDC 30VDC Form C 30 VDC@1 A 110 VAC@0.3 A...
A.3 General I/O Connector Type Dimensions Power Consumption Temperature Relative Humidity Removable 10-pin screw terminal x 5 132 X 80 X 32 mm (5.2” X 3.2” X 1.3”) 60mA@+5V typical, 400mA@+5V max. Operation 0~60 (32~140) (refer to IEC 68-2-1, 2) Storage -20~70 (-4~158) 5%~95% RH non-condensing (refer to IEC 68-2-1, 2)
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OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time.
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