详述了上位机软件的功能、模块及数据的组织，分析了主程序流程和与下位机通信的流程。
The software function, modules and data organization of the Upper Layer Computer are explained, the process of main program and that of the communication with Upper Layer Computer are narrated.
硬件部分包括测试电路、无线收发和上位机通信，并编制了相应的软件程序。
Hardware includes the test circuit, wireless transceiver and host computer communications; we also developed corresponding software programs.
介绍了伦茨变频器通过LECOM协议与上位机通信的方法。给出了LECOM通信的硬件构成、通信协议以及程序设计方法。
A method of LECOM communication of LENZE inverter to the host is described, and the hardware composition, communication protocol and programming design method are also presented.
还对松下公司的FP系列plc的通信协议进行了分析，介绍了基于VB的上位机通讯程序设计思想。
In addition, we briefly introduce appropriative communication protocol of FP series PLC and a method of VB program design is also introduced.
本文采用蓝牙技术，设计了上位机与蓝牙传感结点的通信电路模块并编写出应用程序，以实现蓝牙传感网络的短距离无线通信。
Therefore, this paper, using Bluetooth technology, designs communication circuit module both of PC and Bluetooth sensor nodes, and writes applied programs. It has achieved short distance wireless.
本文介绍了立体车库的PLC控制系统总体设计、控制程序设计、PLC与上位机接口的通信方案设计、计算机从PLC读取数据的程序设计等。
The main description is on designs such as overall scheme, control program, communication interface between PLC and upper computer, data read program.
在上位机的程序设计中，采用VB编写电机控制的操作界面，并应用RS485通信实现与下位机的数据交互。
VB programming is used to prepare the operation of motor control interface on the host computer, and apply RS485 communication programming to achieve data exchange.
利用模块化的思想设计usb通信系统，连接上位机程序和下位机电机控制芯片。
Use the Modular design idea to design the USB communication system to connect the motor control system and the PC software.
再次，利用OPC技术实现PLC与上位机的通信，并具体分析了OPC通信方式，通过程序的调试验证了OPC协议的确实可行性。
Thirdly, the protocol of OPC is allpied in communicating PLC with PC. Then the feasibility of the OPC is approved by programme.
并实现与上位计算机之间串口通信程序，能够将数据实时发送给上位机。
It also realized serial port communicating program. It can send the data to computer in time or receive the controlling command sent by the computer.
设计了步进电机驱动应用电路和单片机控制电路，并编写单片机程序，完成与上位机通信。
Designed stepper motor driver application circuit and Single Chip Microcomputer control circuit, and compiled the SCM procedures, finished to communicate with the upper computer.
接着针对上位机开发了一个监控程序，总体上实现了四大功能：视频播放、串口通信、流量曲线显示、数据库查询。
Then, the author developed a monitor software, which contains four modules: video player, Serial communication, volume curve display, database inquiry.
接着针对上位机开发了一个监控程序，总体上实现了四大功能：视频播放、串口通信、流量曲线显示、数据库查询。
Then, the author developed a monitor software, which contains four modules: video player, Serial communication, volume curve display, database inquiry.
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