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- RS485接口标准RS485 interface standard
- RS485接口RS485 bus
- 标准standard
- 采用基于RS485接口的USS协议实现了PLC与变频器的串行通讯.The serial communication between PLC and frequency-converters is realized based on the USS protocol of the RS485 interface.
- 接口interface (port)
- 标准的normal
- 国际标准international standard
- 标准英语Queen's English
- 尺寸测量接口标准。第2部分:对像接口规范Dimensional Measuring Interface Standard - Part 2 - Object Interface Specification
- 介绍西门子公司S7-200PLC和直流调速装置6RA70及变频器MICROMASTER420之间构成的调速控制系统,采用基于RS485接口的USS协议,实现PLC与多台直流调速器及多台变频器的串行通讯。This paper recommends the control system composed of SIEMENS PLC S7-200 and DC speed regulator of 6RA70 and frequency converter MICROMASTER420 based on USS protocol of RS485 interface so that the serial communication of PLC and different DC speed regulators and frequency converters is realized.
- 标准差root-mean-square error (RMS error)
- 符合标准to comply with a standard
- 技术标准technology standard
- 数据接口data interface
- 标准时间slow time
- 串行接口serial interface
- 标准偏差standard deviation
- 网络接口network interface
- 收费标准expenses standard
- 介绍了基于数字信号处理器(DSP)的通用多功能控制器的设计及应用,结合其具体实现叙述了DSP的片内资源的应用、存储器扩展以及A/D、D/A转换和常用的RS232、RS485接口与并行接口的设计方案。The design and realization of a universal multifunction DSP controller is presented. This paper also relates the application of the inside resources of DSP,the memory expansion,A/D,D/A conversion,RS232,RS485,and the design of parallel interface.