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Write to COM1 (Serial Port) .Net VB (Studio 2005) - for POLE DISPLAY

Posted on 2007-04-01
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Last Modified: 2008-02-01
Hi ! I am a rookie to .Net VB(Studio 2005); in my legacy program I use the basic below to communicate with a serial port that has a POLE display attached to it.

OPEN"COM1:9600,N,8,1" FOR OUTPUT AS #6
     PRINT #6, "Test 1234"
     CLOSE#6

How do I do this with .Net VB ; please provide code and not just a link.

Thanks
BASit
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Question by:BASit Bulbulia
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r1937 earned 1000 total points
ID: 18831780
I have no experience with serial port communication, but try this:

In the toolbox, there is control called "SerialPort".
Add it and from the properties you can set its connection settings:
PortName:"COM1", Baud:"9600", Parity:"None", DataBits:8, StopBits:"ONE".

Default settings may be sufficient.
After that just code in:

        SerialPort1.Open()
        SerialPort1.Write("Test1234")
        SerialPort1.Close()
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Author Comment

by:BASit Bulbulia
ID: 18832381
Thanks, unfortunately although I have COM1: on my PC and a Pole Dispaly connected to it; it will upon SerialPort1.Open() give and exception error (access denied).

Maybe some other expert who worked with COM ports may be able to explain how . .

BASit
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Author Comment

by:BASit Bulbulia
ID: 18952123
Sorry dude;
 
I did not realise that this question was still open . . .

I tries the code with a working com port and it works :-)

Ta


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