Using Hyperterminal With Rs232

1. What Is Hyperterminal

The hyperterminal in COMM mode is hard wired to the serial port connector on the PC. You C# software cannot access the same serial port the the hyperterminal is using so you would need a 2nd serial port on teh PC and a Null Modem whichwoould connect the two serial ports together. What you should do instead is set the HyperTerminal to TCP/IP which is on the same menu as the com port selection. You can make the Hyperterminal eith erthe client or Ser as follows 1) Option 1 C# as Client Hyperterminal as Server Configure Hyperterminal to TCPIP and IP address 127.0.0.1 (loopback IP address) and port number. Usually I recommend a port number 10,000. Start the hyperterminal and you will get an error can't connect to port number. Then go to call menu and select 'wait for call'.

Start C# application after Hyperterminal. Use TCPCLient with same port number as Hyperterminal. Connect to 'LocalHost' as IP addrress. 2) Option 2 C# as Server and Hyperterminal as Client Start C# appliation as TCPListener. Pick port number 10,000. Make the End Point 127.0.0.1. Start Listening Start Hyperterminal after C# is started and choose TCP/IP with IP address LocalHost.

Use same port number as C# code. Start call you will connect without an error. You can open two hyperterminals on the same PC start the Server (IP = 127.0.0.1) and tthen sdttart the client (IP = Localhost) as a quick demonstation. The hyperterminal in COMM mode is hard wired to the serial port connector on the PC.

You C# software cannot access the same serial port the the hyperterminal is using so you would need a 2nd serial port on teh PC and a Null Modem whichwoould connect the two serial ports together. What you should do instead is set the HyperTerminal to TCP/IP which is on the same menu as the com port selection. You can make the Hyperterminal eith erthe client or Ser as follows 1) Option 1 C# as Client Hyperterminal as Server Configure Hyperterminal to TCPIP and IP address 127.0.0.1 (loopback IP address) and port number. Usually I recommend a port number 10,000. Start the hyperterminal and you will get an error can't connect to port number. Then go to call menu and select 'wait for call'. Start C# application after Hyperterminal.

Use TCPCLient with same port number as Hyperterminal. Connect to 'LocalHost' as IP addrress. 2) Option 2 C# as Server and Hyperterminal as Client Start C# appliation as TCPListener. Pick port number 10,000.

RS-232 Troubleshooting RS-232 serial communication control protocol is undoubtedly the most common way of controlling Pro A/V equipment in signal management systems. It is used to control video projectors, amplifiers, switchers, matrix switchers, dimmers, and much more. Using HyperTerminal. RS-232 Troubleshooting. (RS) for modem interfacing. The most current standard, RS-232D (January 1987), was amended to be compatible with international standards CCITT V.24, V.28, and IS2110. RS-232 Pinouts Standard RS-232 pin-outs for IBM compatible computers are shown below. Windows® HyperTerminal can be used to program most General Purpose Instruments (not the. 531xx series counters) using the RS-232 Serial Bus. Hyper Terminal RS 232 & Serial Port Test; LabVIEW APIs Documents. HyperTerminal is a program that you can use to connect to other computers, devices and host computers. HyperTerminal has capabilities beyond making connections to other computers and devices. It can, for example, transfer large files from a computer onto your portable.

Make the End Point 127.0.0.1. Start Listening Start Hyperterminal after C# is started and choose TCP/IP with IP address LocalHost.

Use same port number as C# code. Start call you will connect without an error. You can open two hyperterminals on the same PC start the Server (IP = 127.0.0.1) and tthen sdttart the client (IP = Localhost) as a quick demonstation. You need two connectors on the computer. They should be either 9 pin or 25 pin connectors. I would first try using two hyperterminals applications open at the same time and your VS application closed. You will need to null modem cable connected to the two connectors on the computer (or add two wires connecting the pin 2 to pin 3 on both connectors).

Open two hyperterminals each one to a different com port. In th ehyper terminal make sure both the hardward handshaking and software handshaink are OFF. You should be able to type on one hyperterminal and see the characters on the other hyperterminal. Only after you get the two hyperterminal woking should you try your VS application. Your VS application should replaced one of the huperterminals.

The hardware connection will remain the same. Your VS application also must turn off both the hardware handshaking and the software handshaking. In all cases the baud rate of hyperterminal(s) and your VS applicaton must be set to the same baud rate. Don't use the hardware or software handshaking.

What Is Hyperterminal

These methods are obsolete. A connection had a Master (client)/Slave(server) relationship.

The master sends commands and receive responses from the slave. The slave processes the commands. You only send one command at a time so the handshaking is to wait until you get a complete message before continuing. The receiver code in both the client and server simply waits until it gets all the bytes of a message before. Commands and responses are both message types The client is your PC and the slave is the device. There are 3 methods to determine when a message completes 1) Ascii Data - Put a return at the end of each message and then have the receiver wait for the CR 2) Ascii or Binary - Add a byte count to the beginning of each message. The receiver removes the bytes count at the beginning of the message and then waits for all the bytes to be received.'

3) Ascii or binary - Fix bytes count. A message normally will have a one or two byte command. Each command type would have a predetermined length which the receiver uses to determine the length of the message. Some protocols uses a combination of the above.

The receiver can wait for the entire message to be received before processing or start processing on partial messages. The receiver shouldn't send back a message until all the previous message was received.

To use HyperTerminal as a serial port monitor or dumb terminal. Connect the system you are monitoring to the serial port. Open the HyperTerminal Software and create a new connection. Enter a name for your connection and click OK.

Select your COM port under “connect using”. Click Configure, and make sure that the port settings match those required by the system you are connecting to. Click OK again to connect.

Once connected you should see the text as it is received by the serial port. If you need to capture non-text data as well you can do this by clicking Transfer, Capture Text, Start.