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Фрагмент инструкции
Please follow the steps below to install the module on your system. Step 1: Touch the metal part on the surface of your computer to neutralize the static electricity that might be in your body. Step 2: Plug your USB module into the selected USB port. Hold the module only by its edges Plug the module firmly into place. Use of excessive force must be avoided; otherwise the module might get damaged. Note: In case you installed the module without installing the DLL driver first, Windows 2000/XP will recognize your module as an “unknown device” after reboot, and will prompt you to provide necessary driver. You should ignore the prompting messages (just click the Cancel button) and set up the driver according to the steps described in Section 2.2 Driver Installation. USB-4718 User Manual 12 Figure 2.2: Device Manager Screen 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 “!” (Fig. 2-4), it means your module has not been correctly installed. In this case, remove the module from Device Manager by selecting its device name and press the Remove button. Then go through the driver installation process again. You can check the Device Properties to see if your device is running under "Full Speed" mode (USB 1.1) or "High Speed" mode (USB 2.0). See figure 2.3 on the next page. 13 Chapter 2 Figure 2.3: USB-4718 Device Speed After your module is properly installed with your system, you can now configure your device using the Advantech 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 Advantech Device Manager is a utility that allows you to set up, configure and test your devices, and later stores your settings in the system registry. These settings will be used when you call the APIs of Advantech 32-bit DLL drivers. USB-4718 User Manual 14 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). 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 Advantech Device Manager, please close the Advantech 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. On the Device Setting dialog box, you can specify the BoardID of the device and perform the AI calibration function for the AI channels. "Locate" will blink the on-module LED till you release the bottom so you can easily identify the device you are operating. 15 Chapter 2 "Restore" will reset device configurations to the factory settings. Note: Please refer to Appendix C for a detailed calibration procedure. Figure 2.5: The Device Setting Dialog Box 1.Board ID: Set the Board ID for easy identification. 2.Locate: The on-module LED indicator blinks when you continually press “Locate” button. 3.Label string: Edit the string label for identification purpose. USB-4718 User Manual 16 4.AI Channel setting: Set the thermocouple type/ analog input range for each AI channel. 5.Sample Rate adjustment: Drag the slide bar to adjust the sampling rate of your device. 6.Restore: Restore the AI Calibration setting or the CJC offset setting to default. (Restore Setting. Tif) 7.CJC Offset: Adjust CJC offset setting. (CJC Offset Adjustment. Tif) 8.AI Calibration: Analog input channel calibration function. Please refer to Appendix D for detailed operating guide. 2.4.3 Gain Code Setting Configure the AI (analog input) channel's input voltage/current range by setting the corresponding GainCode of the device. The configuration for voltage and current is differentiated by the value of GainCode. The value of current GainCode is greater than 0x8000. Please refer to USB-4718’s software manual for more detail information. 17 Chapter 2 Table 2.1: Gain Code Gain Code (Hex) Type Range 0x08 Voltage 0-15mV 0x0A Voltage 0-50mV 0x0B Voltage 0-100mV 0x0D Voltage 0-500mV 0x0E Voltage 0-1.0V 0x0F Voltage 0-2.5V 0x8000 Current 0-20mA 0x8001 Current 4-20mA 2.5 Device Testing Following the Setup and Configuration procedures to the last step described in the previous section, you can now proceed to test the device by clicking the Test Button in the I/O Device Installation dialog window. In the Device Test dialog window, you are free to test various functions of USB-4718 on the Analog input, Ana...