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研究了以欧姆龙PLC为控制核心的温（网）室灌溉系统。采用VB6．0程序设计语言，在Windows环境下实现了上位计算机与PLC的串行通信，以实现上位机对下位机的监控和数据交换，该控制器能实现灌溉的定时和适时控制。实践证明，该控制器能满足温（网）室育苗的要求-to study the OMRON PLC for the control of the core temperature (network) room irrigation system. Using Visual Basic 6.0 p
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hard disc serial no deriver visual basic software application
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利用VB中的MScomm控件读串口传过来的定位数据，-Utilize VB in MScomm controls read the serial pass over the positioning data,
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主要介绍Modbus-RTU规约,并在分析其通信原理的基础上,结合一个应用实例给出了VB6.0编程环境下利用MSComm通信控件实现基于该规约的工控机与数字显示表之间的串口通信编程方法。
-Serial Communication Based on Modbus Protocol with Microsoft Visual Basic
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port controller is used in visual basic for serial communication
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SERIAL COM VISUAL BASIC
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本文档介绍了VB与RS-232串行通信控制的实现和方法-This document describes the implementation and methods of VB and RS-232 serial communication control
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The present paper describes the design of a cost effective, better resolution data acquisition
system (DAS) which is compatible to most of the PC and laptops. A low cost DAS has been designed
using PIC12F675 having 4-channel analog input with 10-
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