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How to communicate with device connect via Com 1?

Posted on 2002-06-07
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hi, I have a device connect to Com1 & I want to retrieve data from this device, what is the command should I use in VB? I already try to use MSComm, but still cannot. Any idea, pls help...thanks..
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Question by:meAlone
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DrMaltz earned 50 total points
ID: 7064286
Yes, MSComm provides the means to communicate to a hardware device via COM ports, but you must have the Protocol the device.  The protocol determines the commands and how they have to be issued to the device.  Have you contacted the manufacturer of the device?  Are they willing to provide you with the protocol?  If so.. you're good to go.. if not, you may have to reverse engineer the communication..
Here are a few software vendors that provide protocol analyzer software.  
 http://www.sinnovations.com/  
 http://www.angelfire.com/biz5/USDM/index.html  
 http://www.runmode.com/  
 http://www.greenleafsoftware.com

Good Luck,

DrMaltz.
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