Full digital, Chinese vision LCD, Problem diagnose, network control double handle easy open door structure; DSP digital signals processor; CAN general wire technical; RS485 or Device Net communicate connect
特点：全数字化、液晶汉显、故障诊断、网络控制双手把快开门结构；DSP数字信号处理器；CAN现场总线技术；RS485或Device Net通信接口
This design is 8051 microcontroller system as the core, with the platinum resistance temperature sensor on the hydro-generator group bearing temperature, generator stator windings and core temperature, the temperature of the main transformer, such as real-time multi-point temperature data logging, Real-time temperature of the collection, are analog signals, the ADC will convert them to digital signals, and which to remove the signal interference, entered into in the SCM process, the result will not only locally, but also SCM serial port through the use of RS-485 communication protocol and the data collected will be sent to Master control machine, further filing, processing.
本设计是以8051单片机系统为核心，用铂电阻使温度传感器对水轮发电机组的轴承温度、发电机定子绕组和铁心的温度、主变压器的温度等多点温度进行实时巡检，对温度进行实时采集，得到模拟信号，经过模数转换器将其转换为数字信号，并且要将其中的干扰信号去除，输入到单片机中进行处理，其结果不仅能在本地显示，而且可以利用单片机串行口通过RS-485总线及通信协议将采集的数据传送到主控机，进行进一步存档，处理。
According to different control modes, the four RS-422/ RS-485 SCIs can be used individually or parallelly.
根据控制方式的不同，4 路 RS-422/RS-485 串行口可以单独或并行使用。
Finally, explains briefly the following task. Embedded Multiply Port Modbus Server acts as the middle tier business platform—could supervisory and control the various types of field control devices through 8 RS422/RS485 buses, provide standard Modbus protocol based on TCP/IP, accomplishes the ESP SCADA system with remote control and independent of distance. At the same time, acts as the agency of field control level and DCS system, makes the various types of field control devices integrate with DCS system through standard industrial protocol. So, eMPMS extends the application range and flexibility of the ESP SCADA system, accelerate the efficiency of the ESP system, and plays a positive role in environment protection and the decrease of power plant`s dust emission.
嵌入式多口Modbus服务器eMPMS作为电除尘SCADA系统的中间层业务支撑平台——能够并行监控多条Rs422/485总线的现场控制设备，为现场控制设备提供标准的基于TCP/IP的Modbus协议，实现了电除尘SCADA系统远程控制的距离无关性；同时作为现场控制层与DCS系统的中介，使已在现场应用的大量控制设备，能通过标准的工业协议，实现与DCS系统的集成；从而大大扩展了电除尘SCADA系统的灵活性和应用范围，促进了电除尘系统的高效运行，为减低电厂粉尘排放和环境保护起到积极作用。
Central oxygen supply; monitoring control system; RS485; microcontroller
中心供氧；监控系统； RS485；单片机
In order to get one-to-several communication, the broadcast in the RS485 mode is adapted to different address.
提出了一种对单个字符设备传输协议的数据帧分析方法，改善了通信的可靠性。
Since RS-485 SYSTEM s using a two wire configuration connect the driver to RECEIVER in a loopback fashion, this feature is often used to disable the RECEIVER during transmission to prevent the echo of local data.
因为使用2根导线配置的RS-485系统连接成驱动器向接收器回送的方式，这个特点经常用于在传输期间禁止接收器，防止本地数据回送。
The paper provided the circuit diagram of switch between RS232 and RS485, and the serial communication? s flow chart of the electric ene...
本文给出了RS232与RS485的转换电路图与基于MODBUS协议设计的电能管理系统串行通讯程序流程图。
The impedance matching of antenna is very important for the EAST-ICRH system, the method of load impedance matching is to place an impedance matching equipment between the antenna load and the transmission line, so place the vacuum tuning capacitor between the antenna and the transmission line, and design the remote control system of EAST-ICRH vacuum tuning capacitor based on the RS-485 network technology.
中文摘要天线阻抗调配是EAST-ICRH系统中的关键问题之一，为解决此问题，在新型ICRH天线和传输线之间接入了真空调配电容。而天线工作在EAST真空室内，所以须对电容进行远程调配，达到系统阻抗匹配的效果。
The system implements metal tube rotameters calibration and temperature compensation by software, so high-accuracy measuring of the flux signal is realized in various environments. Ultralow-power consumption SCM MSP430F149 and XTR115 are adopted to realize two-wire 4～20mA current loop output and signal transmission by RS232/485. The presicion is higher than 1.0-level, testing by the standard flowmeter with 0.2-level, and the system has little temperature drift. Meanwhile, LPC2114 and Ethernet controller CS8900 are adopted to finish Ethernet communication.
系统利用软件方法实现对金属管浮子流量计的标定和温度补偿，使之在不同的环境温度下完成对流量信号的高精度测量；采用超低功耗单片机MSP430F149和XTR115实现两线制4～20mA电流环输出以及通过RS232／485传输信号，经精度为0.2级的标准流量计测试，该流量计的精度不低于1.0级，温度漂移小；同时，系统采用LPC2114及以太网控制器CS8900实现了网络通信。
The function and demands of on-line monitoring system of dynamic parameter of water power plant is analysed.
分析了水电厂动能参数在线监测系统的功能和要求，提出了基于RS-485网络的水电厂动能参数监测系统的硬件结构和软件配置。
The Siemens CPU224 of S7-200 series is used as the controller of the food transport, which is supported by EM235 (4 Analog input/1 analog output of the simulation module) extension module, mainly to complete the weighing of grain from warehouses and through its control of the belt to complete the operation of the grain and out of warehouses and through the RS-485 bus to achieve the PLC main controller and the host computer of data communications, the PC mainly transmit the control orders signal to the PLC, then PLC is operated by the internal procedures of certain operating functions.
在粮食运输中采用西门子公司S7-200系列的CPU224做控制器，并配以EM235（4路模拟量输入/1路模拟量输出的模拟量模块）扩展模块，主要是完成粮食进出仓的称重和通过其对皮带机的控制完成粮食进出仓的操作，并且通过RS-485总线的方式实现PLC主控制器与上位机的数据通信，上位机主要是把控制命令信号传到PLC中，再由PLC内部的固定程序完成某些操作功能。
The SiemensCPU224 of S7-200 series is used as the controller of the foodtransport, which is supported by EM235 (4 Analog input/1 analogoutput of the simulation module) extension module, mainly tocomplete the weighing of grain from warehouses and through itscontrol of the belt to complete the operation of the grain and outof warehouses and through the RS-485 bus to achieve the PLC maincontroller and the host computer of data communications, the PCmainly transmit the control orders signal to the PLC, then PLC isoperated by the internal procedures of certain operating functions.
在粮食运输中采用西门子公司S7-200系列的CPU224做控制器，并配以EM235（4路模拟量输入/1路模拟量输出的模拟量模块）扩展模块，主要是完成粮食进出仓的称重和通过其对皮带机的控制完成粮食进出仓的操作，并且通过RS-485总线的方式实现PLC主控制器与上位机的数据通信，上位机主要是把控制命令信号传到PLC中，再由PLC内部的固定程序完成某些操作功能。
File by connecting the SCI port to the computer. You need to add the RS232 transceiver to this port. Some applications may use RS-485 signaling protocol here.
如果需要更多实用Flash程序和相关软件，请查看包含各自应用报告，参考指南和软件工具的文件夹。
In order to implement the real-time monitoring of the signal changes, and in order to achieve communications of the single chip and the PC, used the environment adaptative and more cost-effective of the RS485 bus.
为了实时对信号变化实施监控，并且实现单片机和上位机的通讯，采用环境的适应性较强和性价比高的RS485总线。
Its lighting, remote meter reading, environmental temperature control by RS485 interface, the main address of the network home appliances and LG, Samsung interconnection.
其照明、远程抄表、环境温度控制采用RS485总线接口方式，网络家电主要解决了与LG、三星的互连。
When an RS-485 network is in an idle state, all nodes are in listen mode.
RS-485网络处于空闲状态时，所有的节点都成为听模式。
The subject of entry chiefly studies the temperature and humidity control of air-conditioning system based on the new air automation system of the optical institute of the astronavigation science and technology committee, and it also designs the computer supervision system on the base of RS-485 bus platform.
本项目是在航天科工集团某研究所光学加工楼新风自动控制系统的基础上，研究中央空调系统的温湿度控制，并设计出了以RS-485通讯总线为平台，基于PC机的计算机监控系统。
So it is important to analyze the mechanism and diagnosis method of inter-turn short circuit fault of rotor winding.
本文针对娘子关发电厂3#发电机的现场实际情况，开发研制了3#发电机转子匝间短路诊断系统，首先通过发电机励磁电流表和功率表的RS485 数字通讯口，采集得到发电机励磁电流、有功、无功、相电压、线电流、功率因数、频率等参数，然后利用NPORT 设备传输至服务器数据库，基于所建立的发电机模型及采集的数据编制了转子匝间短路诊断软件，局域网络中的客户机都可通过访问服务器观察当前发电机运行状况。
The system has two DELTA PLC, with the communication of RS485 serial constituting the connection internet, adopting distributed control, implementing the mixture ratio and the weigh of input material, weighting the numerical measure of each carbon stove, charge-in and gasoline controlling.
系统采用上、下位2台台达PLC，以RS485串行通信构成通信网络，采用分布式控制，实现原料的配比称重、每一炉油量的称重，以及碳素炉的进料、加油控制。