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PCI接口卡电路——电源电路的CAE封装设计: 随着计算机各种高速外围设备的不断出现,要求计算机具有高速的数据总线,原有的PC、ISA等总线已不适应这种要求,取而代之的是PCI总线.现在PCI总线已经成为目前最流行的、也是最有发展前途的计算机系统局部总线.本系统是基于PCI总线的数据传输系统,开发PCI接口可以采用CPLD！教你如何设计PCI接口封装全过程！

2010/9/9
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第七讲-异步串行口UART-AVR单片机软硬件设计视频教程-入门篇_2: 第七讲-异步串行口UART-AVR单片机软硬件设计!本讲内容：串行通讯技术概述异步串行通讯原理 UART与电脑的通讯 M16的USART 中断方式使用USART步骤串行通讯的通俗定义：一次发送一位串行通讯的分类：同步串行通讯时钟线、数据线，通过时钟保持数据同步 SPI，IIC 异步串行通讯只有一根数据线，通过波特率保证数据同步 UART 无线通信一般均为异步串行通信

2010/9/2
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第七讲-异步串行口UART-AVR单片机软硬件设计视频教程-入门篇_1: 第七讲-异步串行口UART-AVR单片机软硬件设计!本讲内容：串行通讯技术概述异步串行通讯原理 UART与电脑的通讯 M16的USART 中断方式使用USART步骤串行通讯的通俗定义：一次发送一位串行通讯的分类：同步串行通讯时钟线、数据线，通过时钟保持数据同步 SPI，IIC 异步串行通讯只有一根数据线，通过波特率保证数据同步 UART 无线通信一般均为异步串行通信

2010/9/2
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施耐德ATV71异步电机变频器编程手册: 编程手册Altivar 71异步电机变频器!开始之前 4 文档结构 5 变频器安装步骤 6 出厂设置 7 应用功能 8 设置 – 初步建议 12 图形显示终端 14 终端描述 14 图形显示屏描述 15 第一次通电 - [5. LANGUAGE ( 语言 )] 菜单 18 随后通电 19 编程：参数访问示例 20 快速导航 21 集成显示终端 24 显示屏与按键的功能 24 访问菜单 25 访问菜单参数 26 [2. CONTROL ACCESS ( 访问控制 )] (LAC-) 27 参数表结构 29 参数值之间的相互关系 30 在此文档中查找一个参数 31 [1.1 SIMPLY START ( 简单起动 )] (SIM-) 32 [1.2 Monitor( 监视 )] (SUP-) 40 [1.3 SETTINGS ( 设置 )] (SEt-) 49 [1.4 MOTOR CONTROL ( 电机控制 )] (drC-) 64 [1.5 INPUTS / OUTPUTS CFG ( 输入 / 输出设置 )] (I-O-) 80 [1.6 COMMAND ( 命令 )] (CtL-) 103 [1.7 APPLICATION FUNCT. ( 应用功能 )] (FUn-) 116 [1.8 FAULT MANAGEMENT ( 故障处理 )] (FLt-) 194 [1.9 COMMUNICATION ( 通信 )] (COM-) 211 [1.10 DIAGNOSTICS ( 诊断 )] 215 [1.11 IDENTIFICATION ( 软硬件识别 )] 217 [1.12 FACTORY SETTINGS ( 出厂设置 )] (FCS-) 218 [1.13 USER MENU ( 用户菜单 )] (USr-) 221 [1.14 CARTE APPLI. PROG] 222 [3. OPEN / SAVE AS ( 打开 / 保存为 )] 223 [4. PASSWORD ( 密码 )] (COd-) 225 [6 MONITORING CONFIG. ( 监测配置 )] 227 [7 DISPLAY CONFIG. ( 显示配置 )] 231 [ECRAN MULTIPOINT] 235 维护 236 故障 - 原因 - 修复措施 237 用户设置表 242 功能索引 244 参数代码索引

2010/8/30
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PROFIenergy – what the Siemens management says

PROFIenergy – what the Siemens management says: Thomas Schott, head of Factory Automation, on the subject of intelligent energy saving in automation systems

2010/8/13
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PROFIenergy - explained simply: Simple mechanisms for a well-designed energy saving concept

2010/8/13
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Low Voltage Distribution: Discover our integrated portfolio of products for safe, economical and flexible low-voltage power distribution and electrical-installation technology.

2010/8/10
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AB PLCRSLogix5000使用入门10别名标签&数据类型: 罗克韦尔RSLogix5000使用入门频教程由北京首科力通机电设备有限责任公司刘文志先生录制提供,全部共11讲。RSLogix 5000 Software RSLogix 5000 Enterprise Series software is designed to work with Rockwell Automation’s Logix platforms. RSLogix 5000 Enterprise Series software is an IEC 61131-3 compliant software package that offers relay ladder, structured text, function block diagram, and sequential function chart editors for you to develop application programs. Create your own instructions by encapsulating a section of logic in any programming language into an add-on instruction. RSLogix 5000 Enterprise Series software also includes axis configuration and programming support for motion control. With RSLogix 5000 Enterprise Series software, you need only one software package for sequential, process, drive, motion control, and safety programming.

2010/8/3
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AB PLC RSLogix5000使用入门11 Add-On指令RSLogix5000使用入门11

AB PLC RSLogix5000使用入门11 Add-On指令RSLogix5000使用入门11: 罗克韦尔RSLogix5000使用入门频教程由北京首科力通机电设备有限责任公司刘文志先生录制提供,全部共11讲。RSLogix 5000 Software RSLogix 5000 Enterprise Series software is designed to work with Rockwell Automation’s Logix platforms. RSLogix 5000 Enterprise Series software is an IEC 61131-3 compliant software package that offers relay ladder, structured text, function block diagram, and sequential function chart editors for you to develop application programs. Create your own instructions by encapsulating a section of logic in any programming language into an add-on instruction. RSLogix 5000 Enterprise Series software also includes axis configuration and programming support for motion control. With RSLogix 5000 Enterprise Series software, you need only one software package for sequential, process, drive, motion control, and safety programming.

2010/8/3
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AB PLC RSLogix5000使用入门9在线编写程序: 罗克韦尔RSLogix5000使用入门频教程由北京首科力通机电设备有限责任公司刘文志先生录制提供,全部共11讲。RSLogix 5000 Software RSLogix 5000 Enterprise Series software is designed to work with Rockwell Automation’s Logix platforms. RSLogix 5000 Enterprise Series software is an IEC 61131-3 compliant software package that offers relay ladder, structured text, function block diagram, and sequential function chart editors for you to develop application programs. Create your own instructions by encapsulating a section of logic in any programming language into an add-on instruction. RSLogix 5000 Enterprise Series software also includes axis configuration and programming support for motion control. With RSLogix 5000 Enterprise Series software, you need only one software package for sequential, process, drive, motion control, and safety programming.

2010/8/3
人气(16074)
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