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01272
- C/S型数据库 C/S(Client/Server,客户机/服务器)型数据库是当前数据库应用的主流。 与文件型数据库不同的是,C/S型数据库应用程序由两个部分组成:服务器和客户机。服务器指数据库管理系统(Database Manage System,DBMS),用于描述、管理和维护数据库的程序系统,是数据库系统核心组成部分,对数据库进行统一的管理和控制。客户机则将用户的需求送交到服务器,再从服务器返回数据给用户。-C / S database C / S (Clien
IEC61131
- IEC 61131-3是可编程序控制器的编程语言的标准,它将现代软件的概念和现代软件工程的机制与传统的PLC编程语言成功地结合,使它在工业控制领域的影响越出PLC的界限,成为DCS、PC控制、运动控制,以及SCADA的编程系统事实上的标准。本文综述了该标准成功的原因,它的优势和不足,目前和今后的发展,以及推广应用的活动。-PLC programming language standards, it modern software and the concept of the modern sof
1801
- 电力系统1801规约 变电站和调度中心之间的传输规约 目前各个地方情况不一,现场大多采用各种形式的规约如CDT、SC-1801、u4F、DNP3.0等一些规约-1801 Statute of the power system control center substation and transmission between the various parts of the Statute of the current situation varies, Most of the scene
VB_Modbus-RTU
- VB6.0与变频器的RS485或Modbus通讯,控制变频器的参数设定,运行状态,运行频率,读当前状态,电流,电压,频率,故障等。支持远距离控制。-VB6.0 and drive the RS485 or Modbus communications, control the inverter parameter settings, operation status, operating frequency, read the current state, current, voltage, fr
CurrentTest
- 使用VB编写的一个控制电源的程序,可以测试手机的待机电流电压,非常适用于研发手机电流测试;-VB prepared the use of a control power of the procedure, to test mobile phone standby current and voltage, is applied to current mobile phone R & D test
vb_OPC
- vb与simatic opc通讯,应用了iocomp控件,对电流进行实时画曲线-vb and simatic opc communication, application of the iocomp control, real-time picture of the current curve
dianyabiao
- 单板机程序,控制仪表测量工具检测被试的各种电压电流信号仪表-SBC program, the detection of control instruments measuring tools were a variety of voltage and current signal meter
READ-QR
- 与串口读码器通信,控制其开始读码并返回读到的码。然后再当前光标处显示出来-Code reader and serial communication, and control their reading and return to read code. And then displayed at the current cursor
ScanQR
- 全局热键读取QR码 全局热键控制发送信号到串口,串口有信息则输出到当前光标处-Global hotkeys to read QR codes Global hotkey control sends a signal to the serial port, serial port has information output to the current cursor position
CurrentTester(ver01)
- 应用Agilent34405A的库,已经可以控制设备测量电流,电压。简单易懂,对于应用安捷伦数字万用表很有启发性-for Agilent34405A programming, can control the device to measure current, voltage and resister
PQStdSource
- dk62c电能质量标准源控制程序.利用DK62C电能质量测试分析仪检定装置,用户可以合成不规则的标准信号,包括电压、电流设备-dk62c power quality source control soft.Use dk62c power quality analyzer test verification device, the user can synthesis of irregular standard signal, including voltage, current equipmen