USB-NN-CNV3驱动安装说明
USB编程电缆驱动程序安装指南详细说明书-5页精选文档
USB编程电缆驱动程序安装说明概述USB编程电缆是通过将电脑的USB接口模拟成传统的串行口（通常为COM3），从而使用现有的编程软件或通信软件，通过编程电缆与PLC等设备的传统接口进行通信。
功能●支持的操作系统Windows2000/Windows XP●完全兼容USB V1.1和USB CDC V1.1规范●USB总线供电（非隔离电缆）、或USB总线供电与PLC的编程口同时供电（隔离型电缆）●波特率：300bps～1Mbps自动适应●每台PC只支持一根USB编程电缆系统要求请在使用USB编程电缆之前确认你的电脑是IBM PC兼容型并具备以下最低系统要求：●Intel兼容586DX4-100MHz中央处理器或更高●一个标准的USB接口（4-pin A型插座）●运行操作系统为Windows2000或Windows XP驱动程序的安装驱动程序的安装非常简单，只需按提示进行即可，以Windows XP为例，按以下步骤进行：1、打开将要连接USB编程电缆的电脑电源，并确认电脑的USB口已经启动并正常工作。
2、将USB编程电缆插入电脑的USB接口，Windows将检测到设备并运行添加新硬件向导帮助你设置新设备，插入驱动程序光盘并单击下一步继续。
如果Windows没有提示找到新硬件，那么在设备管理器的硬件列表中，展开“通用串行总线控制器”，选择带问号的USB设备，单击鼠标右键并运行更新驱动程序。
3、Windows将检测到安装信息，显示“ USB High Speed SerialConverter ”设备，并出现如下没有通过Windows徽标测试的信息框，单击“仍然继续”。
4、继续安装，让Windows拷贝驱动程序文件到你的硬盘。
5、当Windows显示完成找到新硬件向导，单击“完成”结束安装。
6、安装完成后，请确认在Windows的“开始\设置\控制面板\系统\硬件\设备管理器”菜单的“端口（COM和LPT）”展开条目中出现“ USB Serial Port（COMx）”，这个COMx就是USB编程电缆使用的COM口号。
三菱FX系列编程电缆自制方法接线图
三菱FX系列编程电缆自制方法接线图
几点需要说明:
1. RS232,RS422均是全双工通讯,只是电平信号相反且电压不同,本图采用
422单边驱动的方式,这样就和RS232基本相同了.
2. 电阻的作用主要用来限制电流,防止电流过大烧坏通讯端口.我用的是3K的
电阻,效果良好.
3. 不要在两头都带电的情况下插拔电缆,以免烧坏通讯端口.
4. 8针圆头的针脚编号是从正面看的（插PLC那端）
经一段时间用下来,没有出现任何异常情况,且适合FX1N,FX2N等多种机型.
接入PC的九针口是这样定义线位的2脚GND
3脚VCC
4脚TXD
5脚RXD
4、6并接
7、8短接
RS232正视(公口): ⑤④③②①
⑨⑧⑦⑥
PS/2正视(插座): (G) (6)□(1) (5) (2) (4)(3)
接法: RS232 PS/2
①-------空
②-------(4)
③-------(6)
④-------(1)
⑤-------(2)
⑥-------(1)
⑦-------(5)
⑧-------空
⑨-------空
空-------(3)
(G)-------(G)。
USB编程器软件安装和驱动程序安装说明
软件安装说明首先将光碟上的内容复制到D盘或者E盘，复制完后，在D盘或者E 盘打开文件夹里面的内容，看到“”双击进入里面，将这个发送到桌面上，在桌面上双击软件，如图：然后在桌面上的软件打开之后，安装这二个驱动程序，点击“”就可以安装编程器的二个驱动程序了，如提示这样的图标“四合一USB编程器驱动程序安装说明为了能更清楚的了解四合一USB编程器的关键部件位置，方便下面的叙述，请看一下上面的图片，上图中标注了各部分的功能。
注意：在开始安装驱动时，请不要将编程器与电脑连接，在下面提到需要插入编程器的时候再连接编程器，否则您的安装可能与本说明不符而使安装变复杂。
01：点击桌面上软件的“”。
会看到下图所示的窗口界面。
02、鼠标单击上图所示的“”按钮，稍等片刻会看到下图所示的窗口界面，表示正在安装驱动文件。
03、在上图所示的复制进程结束后，会出现下图所示的窗口界面，表示驱动的安装前期工作完成。
04、在上图所示的界面中点“确定”按钮，上图所示的界面消失，表示“编程器在线读写状态”的驱动预安装完毕。
05、接下来我们安装“在线读写状态”的驱动，鼠标点击驱动软件的“”的向下的小箭头，将鼠标向下移动到“”选择“24-25编程驱动.INF”，会看到下图所示的窗口界面。
06、鼠标单击上图所示的“”按钮，稍等片刻会看到下图所示的窗口界面，表示正在安装驱动文件。
07、在上图所示的复制进程结束后，会出现下图所示的窗口界面，表示驱动的安装前期工作完成。
08、下面我们以先安装“在线读写状态”的硬件驱动识别为例，当然也可以先安装“编程器状态”，但是如果您对电脑操作不是很熟练的话，建议按照我们的顺序进行。
将四合一USB编程器的此跳线帽放在左边位置，中间的跳线帽处于此右边位置，编程器插入电脑的USB插孔内，绿灯指示灯亮稍后桌面的右下角会出现下图所示的提示界面，表示电脑检测到工作在“在线读写状态”的编程器已经插入电脑上了。
09、出现上图所示的提示后，请耐心等待，直到出现下图所示的界面。
USB驱动安装指南说明书
USB Driver Installation GuideCopyright and Technical SupportUSB Driver Installation GuideMTCMR-xx-All Versions, MTSMC-xx-IP/GP-All Versions, MTCBA-H3/EV1-U1, MTSMC-H3/EV1-U,S000507A, Revision ACopyrightThis publication may not be reproduced, in whole or in part, without prior expressed written permission from Multi-Tech Systems, Inc. All rights reserved.Copyright © 2011 by Multi-Tech Systems, Inc.Multi-Tech Systems, Inc. makes no representation or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose.Furthermore, Multi-Tech Systems, Inc. reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation of Multi-Tech Systems, Inc., to notify any person or organization of such revisions or changes. Check Multi-Tech’s Web site for current versions of our product documentation.Revision HistoryRevision Date DescriptionA10/19/11 Initial release.Trademarks and LogosThe Multi-Tech logo, SocketModem, and MultiModem are registered trademarks of Multi-Tech Systems, Inc. Windows is a registered trademark of Microsoft in the U.S. and other countries. Other trademarks and trade names mentioned in this publication belong to their respective owners.Contacting Multi-Tech SupportIn order to better serve our customers, manage support requests and shorten resolution times, we have created the online web portal allowing you to submit questions regarding Multi-Tech products directly to our technical support team. Get answers to your most complex questions, ranging from implementation, troubleshooting, product configuration, firmware upgrades and much more.To create an account and submit a Support Case on the Portal, visit https://Online Web Portal https://The Knowledge Base provides immediate answers to your questions and gives you access to support resolutions for all Multi-Tech products. Visit our support area on the website for other support services.Knowledge Base and Support Services /support.goWorld HeadquartersMulti-Tech Systems, Inc.2205 Woodale DriveMounds View, Minnesota 55112Phone: 763-785-3500 or 800-328-9717Fax: 763-785-9874Technical SupportBusiness Hours: M-F, 9am to 5pm CSTCountry By Email By PhoneEurope, Middle East, Africa: ********************.uk+(44) 118 959 7774U.S., Canada, all others: *********************(800) 972-2439 or (763) 717-5863WarrantyTo read the warranty statement for your product, please visit: /warranty.goContentsChapter 1 – Product Description (4)Introduction (4)Models and Build Option Descriptions (4)Chapter 2 – USB CDC-ACM Driver Installation on Windows (5)Introduction (5)Installing a Virtual COM Port (5)Installing the Modem Driver (6)Verifying That Your Modem Has Been Installed Successfully (9)Account Activation for Cellular Devices (9)Chapter 3 – USB Huawei Driver Installation on Windows (10)Introduction (10)Installing the Huawei Driver (10)Account Activation for Cellular Devices (11)Chapter 4 – Installing Drivers on Linux kernel 2.6.x (12)Introduction (12)Account Activation for Cellular Devices (12)IntroductionThe Multi-Tech® USB Driver Installation Guide provides driver installation procedures for the Multi-Tech SocketModem®, MultiModem® Cell and MultiModem® iCell products. This Installation Guide is organized into four chapters; Chapter 2 provides installation procedures for the USB CDC-ACM drivers on a Windows Operating System; Chapter 3 provides installation procedures for the Huawei drivers on a Windows Operating System; and finally Chapter 4 provides installation procedures on Linux Kernel 2.6.X and newer Operating Systems.The SocketModem models with Universal IP capabilities in a Windows environment use the USB CDC-ACM driver; SocketModem models without UIP capabilities in a Windows environment use the Huawei Driver; modem models in a Linux environment have the drivers embedded in the Linux Operating System. An example Linux installation, using Ubuntu Operating System version 11.04 with the Linux kernel 2.6.38 is provided in Chapter 4 for the Linux environment.After you have installed the modem driver, you need to activate your modem by going to the Multi-Tech Activation website and establishing an account with your cellular carrier.Models and Build Option DescriptionsCDC-ACM Drivers MTCMR-xx – All versionsMTSMC-xx-IP/GP – All versionsHuawei Drivers MTCBA-H3/EV1-U1MTSMC-H3/EV1-UIntroductionFor Windows XP (SP3 or greater), VISTA, 2003/2008 Server, Windows 7 (32-bit or 64-bit), run the automatic installer from the driver you just downloaded from the Multi-Tech website.Note: Certain versions of Windows have an issue with their CDC-ACM driver (Usbser.sys). If you are having connection problems (file download, web pages not loading) your version of Usbser.sys must be updated. Microsoft article 925681 documents this issue and provides a fix.After installing the virtual com port, the correct modem driver may be installed to the com port. This is covered below.Installing a Virtual COM PortYour downloaded driver files contain an installer program for current Windows operating systems (Windows XP and newer only) . Run install.bat from the VCOM_autoinstall directory you down loaded.1.Ensure that the USB cable is connected to your PC.2. For GSM build options, ensure that the SIM card is installed prior to powering up.3. From the Drivers folder, run the install.bat file to initiate the install.4.If any Windows Install Wizard pops up, close or cancel the wizard.5.Windows may pop-up a User Account Control window. Select the YES button to continue with the driverinstallation.6.Click on the Next button to start the driver pre-installation.Chapter 2 – USB CDC-ACM Driver Installation7.There will be a transitory screen, then the process will complete. Click on the Finish button.8.Next, continue with installing the modem driver.Installing the Modem Driver1.Click on the Control Panel button. On the Control Panel screen, double-click on Phone and Modem Options icon.Then click on the Modems tab.Chapter 2 – USB CDC-ACM Driver Installation 2. When this Phone and Modem Options screen appears, click on the Add button.3. On the Install New Modem screen, click Don’t detect my modem, I will select it from a list. Then click Next >.4. On the Install New Modem screen, click the Have Disk button to browse to the Driver folder on your local PC.Chapter 2 – USB CDC-ACM Driver Installation5. Browse to the Driver folder on local PC.6. Select the MTSMCIP_MTCMRIP.INF file. Then click OK.7. In the Models window, scroll down the list of Models and select the model that is applicable to your modem.Once you have selected your model, click on Next>.8. You will now have to choose which com port the MultiModem is connected to.If you know exactly which port your modem is on, click on that port; otherwise, go to Device Manager > Ports (COM & LPT) to verify which port your modem is installed on. Click Next>.Chapter 2 – USB CDC-ACM Driver Installation9. To finish the install, click on Finish.You have now successfully installed the MultiModem driver to your PC.Verifying That Your Modem Has Been Installed Successfully1. After you have successfully installed the MultiModem driver as stated above, you should be brought back to thePhone and Modems Options screen. Make sure that the modem is now listed under the column Modem andAttached To (the correct com port).2. Highlight the modem and then click on Properties.3. A Properties screen will open for the Multi-Tech modem. Click on the tab labeled Diagnostics.4. In the middle of the screen, click on the Query Modem button. Windows will now try to query the Multi-Techmodem. If this process passes, the second box on this screen will show the columns Command and Response.Note:To make sure that the modem is correctly being queried, look at the LED lights of the modem after you click on Query Modem. The TR light should come on and the TD and RD lights should flicker.5. If this process passes, then the modem should be properly installed and ready for use. Click OK to close themodem Properties window. Then click on OK to close the Phone and Modem Options window. Account Activation for Cellular DevicesPre-Configured Multi-Tech ProductsSome Multi-Tech cellular modems have been pre-configured to operate on a specific cellular network, such as Verizon Wireless.However, before you can begin to use the modem, you must set up a cellular data account with your cellular network provider. Please refer to Multi-Tech’s Cellular Activation Web site /activation.go forinformation on activating your cellular modem.IntroductionThis chapter provides procedures on how to install the Huawei Drivers on a Windows Operating System. Installing the Huawei Driver1.Download drivers to a Temp folder on your local PC.2.From the Temp folder, select DriverSetup.exe file.3.The Program Compatibility Assistant screen appears.Chapter 3 – USB Huawei Driver Installation4.Click This program installed correctly.5.Plugin the USB cable into the PC.6.When the Driver Software Installation screen states Your device is ready to use, your modem is installed.Account Activation for Cellular DevicesPre-Configured Multi-Tech ProductsSome Multi-Tech cellular modems have been pre-configured to operate on a specific cellular network, such as Verizon Wireless.However, before you can begin to use the modem, you must set up a cellular data account with your cellular network provider. Please refer to Multi-Tech’s Cellular Activation Web site /activation.go forinformation on activating your cellular modem.IntroductionThis chapter provides procedures on how to install drivers on Linux kernel 2.6.X or higher. The drivers are embedded in the Linux kernel.1.Boot Ubuntu Operating System2.Plugin the USB cable into the PC.3.The Multi-Tech modem will be detected and installed immediately.4.To show system status and the last devices installed, enter dmesg command. The following screen is an example.Account Activation for Cellular DevicesPre-Configured Multi-Tech ProductsSome Multi-Tech cellular modems have been pre-configured to operate on a specific cellular network, such as Verizon Wireless.However, before you can begin to use the modem, you must set up a cellular data account with your cellular network provider. Please refer to Multi-Tech’s Cellular Activation Web site /activation.go forinformation on activating your cellular modem.。
USB-CAN Tool使用说明
I
USB-CAN Tool 安装及使用说明书
DSP 开发工作室
2.6 其他设置 .............................................................................................................................. 11 2.6.1 接收扫描时间................................................................................................................ 11 2.6.2 递增校验........................................................................................................................ 11 2.6.3 通道接收使能................................................................................................................ 12 2.7 信息 ...................................................................................................................................... 12 2.7.1 当前参数........................................................................................................................ 12 2.7.2 设备信息........................................................................................................................ 13 2.8 数据显示 .............................................................................................................................. 14 2.8.1 高速模式........................................................................................................................ 14 2.8.2 列表数据........................................................................................................................ 15 2.8.3 信息存储........................................................................................................................ 15 2.8.4 字节顺序........................................................................................................................ 16 2.8.5 合并相同 ID 数据 .......................................................................................................... 16 2.8.6 数据格式........................................................................................................................ 17 2.8.7 接收帧率显示................................................................................................................ 17 2.8.8 发送帧率显示................................................................................................................ 18 2.8.9 时间标识格式............................................................................................................... 18 2.9 数据接收软件滤波............................................................................................................... 19 2.10 数据显示列表 .................................................................................................................... 19 2.10.1 序号 ............................................................................................................................. 19 2.10.2 系统时间...................................................................................................................... 20 2.10.3 时间标识..................................................................................................................... 20 2.10.4 CAN 通道...................................................................................................................... 20 2.10.5 传输方向..................................................................................................................... 20 2.10.6 ID 号 ............................................................................................................................. 20 2.10.7 帧类型 ........................................................................................................................ 20 2.10.8 帧格式 ........................................................................................................................ 20 2.10.9 长度 ............................................................................................................................ 20 2.10.10 数据 .......................................................................................................................... 21 2.11 便捷辅助功能..................................................................................................................... 21
V3使用说明书-安全注意事项
V3使用说明书-安全注意事项此V3智能U盘（以下简称V3U盘）是深圳市竞业新怡科技有限公司、经略电子（中国）有限公司、北京江民新科技术有限公司联合开发的一款智能性USB闪存盘（可移动磁盘）。
此V3U盘是一个功能强大的移动智能软件平台，在此V3U盘上能够应用包括互联网、多媒体、备份、安全防护、游戏、检测、效能、照片影像和绘图设计等软件,让您充分体验智能化的新奇，真正证明了闪盘智能功能发明的划时代意义!产品特点1.V3 平台提供上千种应用软件2.支持国际应用语言版本操作简便3.完全人性化操作,用户自主订制4.安装简便,兼容性强5.独有的四种强大防伪技术6.V3支持大型商业软件运行应用7.支持三大启动模式CDFS ，AUTORUN，真实的CD-ROM启动8.v3与系统脱离,软件永久受用，系统需求硬件需求CPU：Pentinum Ⅲ以上，内存：128 M以上举荐硬件：Pentinum IV 2.6GHz，512M内存Win2000+SP4，WinXP+SP2，Windows 2003及更高版本的操作系统V3平台的启动把V3智能U盘插入电脑USB口中，系统会自动识不V3U盘，并安装驱动程序。
电脑中会显现两个新的盘符-aoturun和可移动磁盘每次V3U盘连接电脑后V3软件能够自动运行。
也能够用鼠标左键双击autorn盘符打开V3软件。
3.直截了当点击可移动磁盘名目下面的\PrayayaV3\prayayav3\PrayayaV 3.exe文件启动程序；4. 如果你的电脑开启了自动播放功能，将打开如图所示的界面：V3平台的使用1、第一次运行程序的启动画面：2、如果您使用的是试用版本，软件将提示只能试用30天，点击“输入序列号”按钮能够进行注册（详细请参考“注册V3”），程序运行5秒后会提示“连续试用”按钮的画面：3、点击“连续试用”按钮能够连续试用，软件将启动到主程序画面，然而，程序只有30天的试用期限，并每隔一段时刻在电脑屏幕右下角，弹出一个提醒注册的信息；4、点击“输入序列号”按钮，程序将弹出“注册向导对话框”，如图所示：5、点击“Next”按钮，软件将弹出“输入序列号”对话框，请将正确的序列号输入。
USB虚拟网卡驱动安装
USB虚拟网卡驱动安装以及配置使用手册一、设备连接使用随机配备的USB数据线将打印魔方与电脑连接（扁口插在电脑的USB口中，方口插在打印魔方的对应接口中），接上电源，然后打开打印魔方的电源开关，之后电脑开机，电脑的系统会提示发现新硬件。
二、WindowsXP以及32位Windows7的驱动安装1)在PC电脑中会显示发现新硬件，然后自动弹出安装新硬件向导，如下图：2)选择“从列表或指定位置安装（高级）”，然后点击“下一步”，如下图：3)选择“在搜索中包括这个位置(O)。
”，点击“浏览”选择厂家提供的“USB虚拟网卡驱动”文件所在路径，点击确定后开始安装，如下图：4)系统将自动安装驱动，等待即可，最后点击“完成”，退出安装程序。
三、64位Windows7下的驱动安装Linux Kernel中提供的驱动不适用于Windows7 X64, 但实际上， Windows7 已经自带了相关驱动，只是默认不会让它正常安装：理由是微软无法确认驱动是否与硬件相匹配，所以请自行安装，与微软无关。
具体安装方法如下：在设备管理器中选中未安装驱动的RNDIS/Ethernet Gadget device，依次选择：升级驱动程序-->手动选择驱动程序-->从计算机的驱动程序列表中选择-->（网络适配器，如果要求选择设备类型的话）--> Microsoft Corporation-->Remote NDIS Compatible Device，然后会有提示不建议安装此驱动程序因为无法确认是否与硬件相匹配，请忽略警告，继续。
四、虚拟网卡IP地址的配置1)点击网上邻居，点击查看网络连接，这时会出现一个新的连接，双击新的连接，出现网卡地址配置界面，选中“Internet协议(TCP/IP)”,然后点击“属性”，如图：2)点击“使用下面的IP地址”，按照下图的内容设置好以后，然后点击“确定”，完成设置。
3)说明：此处的IP地址必须设置为192.168.253网段的，但是绝对不能是192.168.253.3，因为这个地址是打印魔方的默认IP地址。
Windows 7和USB 3.0驱动程序安装指南说明书
The “Setup is starting...” screen will show up if the USB 3.0 driver is loaded correctly.Follow the onscreen instructions to complete the Windows® 7 installation. Method 2: Using a modified Windows® 7 ISOLoad USB 3.0 drivers and install Windows® 7 using a modified Windows® 7 installation DVD. Requirement:• 1 x ASUS support DVD• 1 x Windows® 7 installation source• 1 x Working system (PC or notebook)- Select the USB storage device and click next.Click the refresh icon if the USB storage device is not displayed.- C lick Yes to clear the contents on the USB storage device and create a bootable USB device.Make sure to backup contents on the USB storage device, as it will be formatted.- Once completed, click OK to finish.- Check I agree and then click Next.- Once completed, click OK to finish.- Burn this ISO file onto an empty DVD to create a modified Windows® 7 installation DVD.Insert the modified Windows® 7 installation DVD into an ODD or connect the USB storage device with modified Windows® 7 installation files onto your 100 series and Braswell platform.Power on your system and press F8 during POST (Power-On Self Test) to enter the boot screen.Select the ODD or USB storage device as the boot device.The USB 3.0 driver will be loaded automatically during installation startup.。
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USB-NN-CNV3编程电缆驱动程序安装说明
概述
USB编程电缆是通过将电脑的USB口模拟成传统的串行口（通常为COM3），从而使编程软件通过USB-NN-CNV3编程电缆与NB SPB系列PLC进行通信。
功能
●支持的操作系统Windows XP/ Windows2000
●兼容USB V1.1 V2.0
●波特率：300bps～1Mbps自动适应
●每台PC只支持一根USB编程电缆
系统要求
请在使用USB编程电缆之前确认你的电脑是IBM PC兼容型并具备以下最低系统要求：
●Intel兼容586DX4-100MHz中央处理器或更高
●一个标准的USB接口（4-pin A型插座）
驱动程序的安装
驱动程序的安装非常简单，只需按提示进行即可，以Windows XP为例，按以下步骤进行：
1、打开电脑主机，插入驱动程序光盘。
2、将USB-NN-CNV3电缆插入电脑的USB接口，Windows将检测到设备并运行添加
新硬件向导帮助你设置新设备，并单击下一步继续。
如果Windows没有提示找到新硬件，那么在设备管理器的硬件列表中，展开“通
用串行总线控制器”，选择带问号的USB设备，单击鼠标右键并运行更新驱动程序。
3、Windows将检测到安装信息，并出现如下没有通过Windows徽标测试的信息框，
单击“仍然继续”。
4、继续安装，让Windows拷贝驱动程序文件到你的硬盘。
5、当Windows显示完成找到新硬件向导，单击“完成”结束安装。
6、安装完成后，请确认在Windows的“开始\控制面板\系统\硬件\设备管理器”菜单
的\“端口（COM和LPT）”\展开条目中出现“Prolific USB-to-Serial Comm（COMx）”，这个COMx就是USB编程电缆使用的COM口号，该端口号与电脑有关，一般为
COM3或COM4，以后每次使用只要插入编程电缆就会出现该COM口，你只需在
编程软件或通信软件等应用软件中选中该COM口号即可通信。
驱动程序的删除
删除驱动程序是为了释放COM口资源以便其他设备使用，或驱动程序故障时需将其删除后重新安装，按下面步骤删除驱动程序：
1、从你的电脑上拔下USB编程电缆。
2、运行驱动光盘下的DRemover98_2k.exe程序
3、显示提示窗口，单击“OK”按钮即可。
(其它还可运行面板中的添加或删除程序，选择“CP2102 USB to UART Bridge Controller”，单击删除按钮或“FTDI USB Serial Converter Driver”，单击删除按钮)。
如何改变COM口号
有些早期的应用软件支持的串口数量是有限的，如某PLC编程软件支持的串口号为COM1～COM2，由于安装USB编程电缆之前已安装了其它的USB转UART设备，安装USB编程电缆驱动程序后在设备管理器中显示该电缆地址为COM8，这样一来编程软件就无法访问该COM口。
这时候就需改变编程电缆的COM口号，有以下二个方法：
1、删除所有的USB转UART产品的驱动程序以释放COM口资源，重新安装USB编程电
缆驱动程序，这时设备管理器将显示该电缆地址为COM3。
2、在Windows2000/XP系统中可直接更改COM口号，双击设备管理器中需更改的COM口
设备，出现设备属性信息窗口，选择“端口设置”，点击“高级”按钮，出现下面高级设置信息窗口，将COM口设置成你所希COM口序号，并单击“确定”按钮完成。
使用中的注意事项：
1、如果电脑开机时未检测到插在电脑上的USB编程电缆（Windows的设备管理器中没有出
现该电缆对应的COM口）或出现其它异常情况，请重新将USB插头拔插一次。
2、USB转UART是即插即用的USB设备，正在进行数据传输过程中不可以将其断开（断开是
指从USB插座中拔出USB电缆），必须在应用程序关闭后，才能从USB插座中拔出电缆。
3、有时Windows系统故障或通信过程中拔插USB电缆也会出现USB通信异常，这时只需重
新启动电脑
4、一般来讲，最好先将USB电缆插入电脑的USB插座，让计算机检测到COM口后再将编程
电缆的另一端插到PLC的编程口上，因为有些PLC工作在主站方式时，其通信口始终在不停的往外发送数据，如先将编程电缆插入PLC的端口则会降低计算机正确识别COM口的速度。
5、编程电缆的USB插头必须直接插入计算机的USB端口，其间不能加入其它USB延长电缆。