modbus serial communication

));Iappui-> settextl (_ L ("listening ...")); USB:# If 1User: leaveiferror (iServer. Connect ());IServer. loadcommmodule (ktxtusbcomm );Tbuf8 User: leaveiferror (icomm. Open (iServer, _ L ("ACM: 1"), ecommexclusive ));// Processing ing port is done by using the codeTcommconfig cbuf;Tcommconfigv01 C = cbuf (); // Get the current configurationIcomm. config (cbuf ); // Set new settingsC. ififo = efifoenable;// C. irate = ebps19200;// C. irate = ebps57600;C. irate = ebps460800;C. ihandshake = kcon

-driven1) Add a reference to the Superio component.2) New class, Inherit SuperIO.Services.AppService abstract class, and implement interface function.3) The cache data of the device can be updated through the Updatedevice interface function.1.4 Commissioning Service DriversInterface mode test is a form interface, must inherit the "Superio.ui." MainForm "class, and use code to set the software platform to debug mode" SuperIO.Device.DebugDevice.IsDebug = true; ",Initializes the instance in Form_Lo

Keywords: circular buffer Serial Communication Data Processing Algorithm serial communication Serial Data Processing 1. Background Analysis In many practical engineering applications, communication methods are usually RS232, RS485

For serial communication, the effect of setting data bit length on communication isIn the serial data communication, you will see the serial port parameter settings. Where the "Data bits" setting, there are four options, namely 8,

I recently in the study of embedded serial communication, the task is to write a mobile phone-side remote control to control the double-wheel balance trolley. The interface only takes one hours to write, and the important question is how to communicate with the SPP-CA Bluetooth module that the board is carrying.The Spp-ca module comes with code, and all I use here is the default mode of SPP-CA. Where the ba

Those who have been mistaken in previous lives can be self-made, and those who have not done so can be self-created.Some time ago, due to work needs, to write a PC test software (C #) to operate a single-chip computer to complete the test function, is based on serial communication. It was hard at the time, and now it's easier to think.about the serial port : Baid

_2bitstringres;}String Turn Hexpublic static byte[] Gethexvalue (String str){string[] Sourcestr = str. Split (');byte[] Coverthexbyte = new Byte[sourcestr.length];Try{for (int i = 0; i {Coverthexbyte[i] = (byte) (int. Parse (Sourcestr[i], System.Globalization.NumberStyles.HexNumber));;}}Catch{ }return coverthexbyte;}Converts 4-bit hexadecimal to 5-bit decimal numberstatic public string Convert5bitdec (string inputstr){String outputstr = "";Try{for (int i = 0; i {Outputstr + = Convert.ToInt32 (I

This article provides a C # implementation of serial communication instances, personally written, pro-Test available!Development environment: Vs2008+.net FrameWork3.5 (actually 2.0 should also be possible)The first stepCreate a WinForm form and pull in some interface elementsThe point is, the diagram is marked with a red box, the Toolbox-the component--serialport, to do. NET

C#-winform Serial CommunicationC # serial Communication, is the use ofSerialPort control, the following is theSerialPort controls(also the serial communication necessary information) is configured with the following code:Serialport1.portname = Commcombobox1.text;serialport1.

the received and sent character data respectively. 5. added the serial event message processing function oncomm ()Open classwizard-> message maps, select cscommtestdlg, select idc_mscomm1, double-click the message oncomm, and change the function name to oncomm in the pop-up dialog box. OK. This function is used to handle serial message events. For example, when the