How can i read an COM port ???

Hi,
somebody knows how can i read an COM port from Forms 4.5 ?
Thanks in advance.
Patricio

Hi Patricio
have U got any solutions?? Im also trying to send message to display panel from forms 5.
If You got any please let me know itll help me a lot
Thanx
Suraj

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screen /dev/tty.usbserial 9600
I'd like to build my own application now. Does anyone could send me any sample code?
I'm using XCode 3.2.5 and I'm a beginner on XCode.

I looked at Dev Center for sample code, and I found this link:
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Using VISA can not find the com port

I use visa read but can't find any com port in Windows 7.
How can i find the com port in Windows 7??
由 jw2002 在 06-28-2009 09:20 AM
上編輯的訊息
由 jw2002 在 06-28-2009 09:20 AM
上編輯的訊息
Solved!
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Windows 7 is not officially supported by National Instruments as it hasn't even been released. That means you won't get any official support from NI on this.
That said, does your computer actually recognize a serial port? Do you have an actual serial port, or do you have some sort of virtual COM port, or are you using some sort of adapter, such as a USB to serial port box? If it's any of the latter, the most likely reason is a driver issue which needs to be written to be compatible with Windows 7.

Hp dc 7800 how can i install pci serial port driver on windows 8.1

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Hi:
Download and install the W7 AMT driver.
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I've tried everything to read this file and am getting no where. Help how can I read this file and load a SQL table?
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Thank you for your assistance - Covi
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We can use script component as source/transformation to read the text file and assign the contains to a string. Split the string by chr(30) i.e RS and finally stored into an array or write to the output buffer of the script component.
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How can I read a template and differentiate if it is a pattern matching template or a geometric matching template?

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Hey Esteban,
you can use the VI "IMAQ Is Vision Info Present 2 VI" to reice the information:
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http://zone.ni.com/reference/en-XX/help/370281P-01/imaqvision/imaq_is_vision_info_present_2/
Take a look at the attached VI
Stephan
Attachments:
Determine Pattern type.zip ‏13 KB

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I'm new in Java Developing, and dont know the written classes yet. I need help, how to do the following steps?
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I'm new in Java Developing, and dont know the written classes yet. I need help, how to do the following steps?
1. How can I read text files from LAN if I only know the hostname, or IP address?You need to know the URL of the file. You need to know the hostname, port, protocl and relative path.
The hostname is server, not file.
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Hi Jeanjac,
first, look here:
http://en.wikipedia.org/wiki/Parallel_port
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How can i use the parallel port

I was wondering how to adress my PC´s
parallel port. I did'nt find a suitable
VI in the palettes.
Do I have to read/write somehow directly
to the port adress in memory 0378 ...?
If so, how can this be done ?
Thanks for any help,
Holsch

Use VISA to read/write to the parallel port just like you would read/write
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there's some articles in the KnowledgeBase if you get stuck.
[email protected] (Helmut Hullen) wrote:
>Hallo, Holger,>>Du meintest am 29.07.00 zum Thema how can i use the parallel
port>> I was wondering how to adress my PC's>> parallel port. I did'nt
find a suitable>> VI in the palettes.>>Look at "in port" and "out port".>Under
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How can I read a book in my mac book that I bought in itunes

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