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1下载：
ModBus VB程序的实现。ModBus是工业中常用的一种通讯协议，本原码是对它的VB实现。-ModBus VB realized. ModBus industry is a common communication protocol, it is a primitive code of VB.
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vb6.0编写的智能仪表通信程序，实现MODBUS-RTU规约及IEC 60870-5-103规约的智能仪表的数据采集，同时实现VB程序与WINCC交换数据。-vb6.0 communication program written in intelligent instruments to achieve MODBUS-RTU protocol and IEC 60870-5-103 Statute of intelligent instrument data acquisition, whil
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VB用RS232/RS485协议通讯，通过COM口与现场仪表(包括Modbus)通讯
实例使用API串口读写模块实现-VB with RS232/RS485 communication protocol, through the COM and field instruments (including Modbus) communications
Examples using API serial literacy module implements
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ModBus通讯协议调试器,VB原程序,可以看到发出和返回的报文-ModBus protocol debugger, VB of the original program, you can see the messages sent and returned
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vb调用winsocket控件，通过modbus TCP 协议与IO设备控制。-A VB program for communicating with I/O equipment by modbus Tcp protocol. in which winsocket activeX is loaded.
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CRC校验基于ＶＢ写的 常用于ＭＯＤＢＵＳ协议的差错检验控制-CRC is written based on VB MODBUS protocol commonly used in error checking control
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VB实现的串口通讯程序，使用的Modbus协议，里面定义了一个实现串口通讯的class,并且有自动生成modbus码的程序，是进行modbus码通讯的好东西-VB achieve serial communication procedures, using the Modbus protocol, which defines a serial communication class, and there is a program to generate MODBUS code, is a goo
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vb通过Modbus协议通信主站程序，并通过Modbus Slave调试成功，可以正常使用，提供读和写两种功能。都有源代码(VB through the Modbus protocol to communicate the main station program, and through the Modbus Slave debugging success, can be used normally, to provide reading and writing two functions.
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