ページ1に含まれる内容の要旨
User’s Guide
Shop online at
omega.com
e-mail: info@omega.com
For latest product manuals:
omegamanual.info
USB-4750
32 Channel Isolated Digital I/O
USB Data Acquisition Module
ページ2に含まれる内容の要旨
® OMEGAnet Online Service Internet e-mail omega.com info@omega.com Servicing North America: U.S.A.: One Omega Drive, Box 4047 ISO 9001 Certified Stamford, CT 06907-0047 Tel: (203) 359-1660 FAX: (203) 359-7700 e-mail: info@omega.com Canada: 976 Bergar Laval (Quebec) H7L 5A1, Canada Tel: (514) 856-6928 FAX: (514) 856-6886 e-mail: info@omega.ca For immediate technical or application assistance: ® U.S.A. and Canada: Sales Service: 1-800-826-6342/1-800-TC-OMEGA ® Customer Service: 1-800-622-2378/1-80
ページ3に含まれる内容の要旨
USB-4750 32-Channel Isolated Digital I/O USB Data Acquisition Module User Manual
ページ4に含まれる内容の要旨
Contents Chapter 1 Introduction ..................................................... 2 1.1 Hardware Features............................................................. 2 1.2 Software Overview............................................................ 3 1.2.1 More on the CD ............................................................. 3 Chapter 2 Installation ....................................................... 6 2.1 Unpacking ....................................................
ページ5に含まれる内容の要旨
USB-4750 User Manual vi
ページ6に含まれる内容の要旨
1 2 Introduction Sections include: • Hardware Features • Software Overview
ページ7に含まれる内容の要旨
Chapter 1 Introduction Thank you for buying the USB-4750 data acquisition mod- ule. The USB-4750 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 Hardware Features USB-4750 features excellent measurement & control functions: • 32 isolated digital input/output channels • High-voltage isolation up to 2,500 VDC on all channels • Dry/wet contact support • Inte
ページ8に含まれる内容の要旨
1.2 Software Overview Omega offers a rich set of DLL drivers, third-party driver support and application software on the companion CD-ROM to help fully exploit the functions of your device. The Device Drivers feature a complete I/O function library to help boost your application performance and work seamlessly with development tools such as Visual C++, Visual Basic, 1.2.1 More on the CD For instructions on how to begin programming in each development tool, some tutorial chapters
ページ9に含まれる内容の要旨
USB-4750 User Manual 4
ページ10に含まれる内容の要旨
2 2 Installation Sections include: • Unpacking • Driver Installation • Hardware Installation • Hardware Uninstallation
ページ11に含まれる内容の要旨
Chapter 2 Installation 2.1 Unpacking After receiving your USB-4750 package, please inspect its contents first. The package should contain the following items: • USB-4750 Module • Shielded USB 2.0 Cable (1.8 m) • Companion CD-ROM (DLL driver included) The USB-4750 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
ページ12に含まれる内容の要旨
2.2 Driver Installation We recommend you install the software driver before you install the USB-4750 module into your system, since this will guarantee a smooth installation process. The 32-bit DLL driver Setup program for the USB-4750 module is included on the companion CD-ROM that is shipped with your module package. Please follow the steps on the following page to install the driver software: 7 Chapter
ページ13に含まれる内容の要旨
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 USB-4750 User Manual 8
ページ14に含まれる内容の要旨
2.3 Hardware Installation Note: Make sure you have installed the software driver before you install the module (please refer to Sec- tion 2.2 Driver Installation) After the DLL driver installation is completed, you can now go on to install the USB-4750 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 if you have any doubts. Please follow the steps below to install the module on your sy
ページ15に含まれる内容の要旨
Step2: Right click the “Unplug or Eject Hardware” icon on your task bar. Figure 2.1: Unplug or Eject Hardware Dialog Step3: Select “USB-4750 Device” and press “Stop” Button. Figure 2.2: Stop a Hardware device dialog box Step4: Unplug your USB device from the USB port. Note: Please make sure that you have closed the application before unplugging the USB device, otherwise unexpected system error or damage may occur. USB-4750 User Manual 10
ページ16に含まれる内容の要旨
3 2 Signal Connections Sections include: • Overview • Isolated Digital I/O Connections • Field Wiring Considerations
ページ17に含まれる内容の要旨
Chapter 3 Signal Connections 3.1 Overview Maintaining good 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 avoid unnecessary and costly damage to your PC and other hardware devices. 3.2 I/O Connectors USB-4750 is equipped with plug-in screw-terminal connectors that facili- tate connection to the module without terminal boards or cables. 3.2.1 Pin Assignment
ページ18に含まれる内容の要旨
3.2.2 I/O Connector Signal Description Table 3.1: I/O Connector Signal Descriptions Signal Reference Direction Description IDI<0~15> GND Input Isolated digital input channels INT<0,1> INT_G Input Interrupt trigger sources. INT<0,1>_ - - Ground for interrupt pins. G CNT<0,1> GND Input Isolated input counters IDO<0~15> GND Output Isolated digital output channels COM<0,1> - - Common pins for connecting induc- tive loads of isolated output channels GND - - Ground
ページ19に含まれる内容の要旨
3.3 Isolated Digital I/O Connections 3.3.1 Dry/Wet Contact Support for Digital Input Each digital input channel accepts either dry contact or 0 ~ 5 VDC wet contact inputs. Dry contact capability allows the channel to respond to changes in external circuitry (e.g., the closing of a switch in the external circuitry) when no voltage is present in the external circuit. Figure 3-1 shows external circuitry with both wet and dry contact components, con- nected as an input source to one of t
ページ20に含まれる内容の要旨
3.3.2 Isolated Digital Output Connections Each of 8 isolated digital output channels comes equipped with a Darling- ton transistor. Every 8 output channels share common collectors and inte- gral suppression diodes for inductive loads. Channels 0 ~ 7 use COM0, and channels 8 ~ 15 use COM1 as a common pin. If an external voltage (5 ~ 40 V) is applied to an isolated output channel (IDO 0 ~ IDO 15) while it is being used as an output channel, the current will flow from the external voltage so
