When the master slave multipoint synchronous communication mode is chasen, the operation and frame format comply with HDLC/ SDLC protocol. 当选择主从多点同步通信方式时,工作过程与帧格式符合HDLC/SDLC协议。
Two modes of communication, one is PPI master-slave protocol, one is free port protocol. 通讯方式主要有两种:PPI主从通讯、自由口模式通讯。
Both PCI Master and PCI Slave bus protocols on the inner of the PCI interface are established. They are the first inner bus protocol of PCI in China, which is in compliance with the standard of VSIA. 制定了PCI总线接口内侧主PCI(PCIMaster)总线协议和从PCI(PCISlave)总线协议,提出了我国第一个符合VSIA标准的PCI内侧总线协议。
With the RS232 serial port, the different kinds master slave system of AC converters can communicate with PC under the USS protocol. 多类型变频器通过RS232串行口通讯,在USS通讯协议下,就可以与工控机联网。
A Mater-slave Serial Network Protocol and Its Realization 一种主从串行网协议及其实现
Communication protocol conversion processor has the function of MODBUS slave station and HOST LINK master station, it can communicate with host computer and PLC, which followed MODBUS communication protocol and HOST LINK communication protocol respectively. 转协议通信器同时具备MODBUS从站和HOSTLink主站的功能,与上位机通信时遵循MODBUS通信协议,与PLC通信时遵循HOSTLink通信协议。
Master computer can realize such function as real-time running, monitoring, setting quality parameters, communication with Slave computer, alarm and real-time printing by inserting appropriate function card of according to bus protocol of PC and software. 上位机采用PC机的总线技术和插卡技术实现实时运行、监控、设定性能试验的参数、通讯、报警以及实时打印。
This paper designed the software and hardware of the slave computer. The communication standard is RS-232 standard. We designed the communication protocol and communication system and developed monitoring software. 设计和实现下位单片机软硬件系统,以RS-232通信标准构建了上下位机通信系统以及通信协议的设计和实现,并且开发了上位机监控软件,实现了各类参数的可视化监控。
The thesis regards solving RS232 interface equipment and PROFIBUS-DP interconnection as the direction of studying. Designing and developing has RS232 interface and PROFIBUS-DP interface Slave. Realize the protocol converted between RS232 equipment and PROFIBUS-DP. 论文以解决RS232接口设备和PROFIBUS-DP总线互连为研究方向,设计开发了具有RS232接口和PROFIBUS-DP接口的从站,实现RS232设备和PROFIBUS-DP总线之间协议转换。
Design the interface programme and the application programme of intelligent slave station, and user protocol conversing programme, Realize user protocol conversion and unification in slave station. 设计了智能从站的接口程序、应用程序及用户协议转换程序,实现了在智能从站中完成用户协议转换与统一。
PCI Slave bus protocols on the inner of the PCI interface is established The inner protocol includes the consideration of three level data buffer. 制定了从PCI内侧总线协议。
The system has master-slave network structure. The host communicate with the slave used Ethernet based on TCP/ IP protocol, and the slave communicate with each other used Ethernet based on MAC layer. 该系统使用主从网络结构,主机与从机通信使用基于TCP/IP协议的以太网,从机间通信使用基于MAC层的以太网。
On the aspect of intelligent slave station interface module, this research develops a PROFIBUS intelligent slave station interface module by using the PROFIBUS protocol chip ( SPC3) and single chip. 在智能从站接口模块开发方面,采用PROFIBUS-DP协议芯片SPC3与单片机开发出PROFIBUS-DP智能从站接口模块,并对所开发的智能从站接口模块进行了实验验证。
In accordance with the requirements of temperature measurement accuracy, develop JC-9 temperature detection module, on which built Modbus-RTU slave protocol. ( 3) The design of temperature control algorithm. 根据温度检测精度要求,研制JC-9温度检测模块,并在模块中集成Modbus-RTU从站通信协议。(3)温度控制算法设计。