自已用DELPHI编写的MODBUS测试软件及源代码,需要的朋友可以参考一下。MODBUS 协议为开放式的协议,采用轮询方式。MODBUS分为MODBUS RTU/ASCII、MODBUS TCP、MODBUS plus几种,对应于不同的硬件平台,世界上大多数的仪器和仪表,大多数的控制器都采用或支持该协议。学习和掌握本协议,对工控网友来说,非常有意义。
上传时间: 2016-08-16
上传用户:liansi
嵌入式编程c、c++,Programming.Embedded.Systems.in.C.and.C.plus.plus.eBook-EEn.chm
标签: 嵌入式编程
上传时间: 2016-08-23
上传用户:gmh1314
The inverse of the gradient function. I ve provided versions that work on 1-d vectors, or 2-d or 3-d arrays. In the 1-d case I offer 5 different methods, from cumtrapz, and an integrated cubic spline, plus several finite difference methods. In higher dimensions, only a finite difference/linear algebra solution is provided, but it is fully vectorized and fully sparse in its approach. In 2-d and 3-d, if the gradients are inconsistent, then a least squares solution is generated
标签: gradient function provided versions
上传时间: 2016-11-07
上传用户:秦莞尔w
采用Altera公司的FPGA芯片,在MAX+plus II软件平台上实现多路HDLC电路
上传时间: 2016-11-13
上传用户:zhyiroy
定时器和中断 ,基于PICDEM 2 plus开发板pic16f877a芯片上的代码。
上传时间: 2014-12-08
上传用户:txfyddz
时间片系统time slicing system ,基于PICDEM 2 plus开发板pic16f877a芯片上的代码。
上传时间: 2016-12-01
上传用户:zhaiyanzhong
using lisp to do the caculation, can parse the natural language,and can caculate the simple, like what is 2 plus 3 ?
标签: the caculation can caculate
上传时间: 2016-12-03
上传用户:ZJX5201314
讲述fpga的幻灯片,很有用的讲解。主要涉及到fpga-plus方面的知识。
上传时间: 2014-08-13
上传用户:xhz1993
Please read this document before attempting to compile and run the libraries and applications! The projects must be compiled in a particular order. Standard support questions are about compiler and/or linker errors that are generated when users try to compile the projects in the wrong order. Other information of interest is available here, so read the entire document fi rst. Wild Magic Version 2.1 is what ships with the fi rst printing of the Game Physics book. Some of the applications that are referenced in the book did not make it onto the CD–ROM for the book. Version 2.2 contains those applications, plus more
标签: applications attempting and libraries
上传时间: 2014-01-16
上传用户:Late_Li
MATLAB是一个非常好的用于测量,分析和可视化的数据,控制仪器,并建立测试系统。安捷伦信号和频谱分析仪可让您分析失真,虚假的,相位噪声,用于2G到4G无线通信测量。这种Matlab下开发的高级数据可视化(ADV)的应用软件,扩展了安捷伦信号和频谱分析仪的可视化功能,提供了四个不同的显示格式:Analog Advanced, Analog plus, Waterfall,和Spectrogram。这些显示使得更加容易捕获间歇性信号。
上传时间: 2016-12-24
上传用户:zhaoq123