vb编制的和台达通讯的源代码，实现了基于VB的台达PLC与监控计算机的串行通信。-vb prepared and Delta communications source code, the realization of the VB-based Delta PLC and monitoring the computer s serial communication.

计算机指令发送到PLC、以什么样的格式进行通信、该如何进行通讯、以及设置的通信语言 利用MSComm 控件进行通信程序设计主要包括初始化程序、和校验函数、发送和接收数据三个部分-Computer commands sent to the PLC, what kind of format to communicate, how to communicate, as well as the communication language setting controls the use of MS

VB与S7-200PLC的MODiBUS通信源代码1.3-VBa ndS7-200PLC MODiBUS communication source code V1.3

An example of OPC data interface with PC. It contains a MS-Excel workbook along with a PLC Software written in STL S7 v5.5. It is also having a user manual which gives step by step quidance for configuring OPC server in PLC and OPC client in vba scr

PLC，ATIA vba二次开发-- 距离检测的vba实现, (CATIA_V5_Distance CATIA_V5_Distance.bas)(xinjie PLC TIA_V5_Distance CATIA_V5_Distance.bas))