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RS-232 Serial Communication

Hi,
I need your help!
I have to do a program with labview (V4-01) to control a DC Power Supply
(from HP). I have a cable (male-male) to connect the power supply to PC and
i have a DB-9 in DC Power Supply and a DB-25 in PC.
If you know the solution for this aplication or some ideas send me for
santiago@alumni.dee.uc.pt
Thanks.
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Most Serial communication uses only pin 2(send) and 3(recieve) on either 25 or
9 pin configuration. So you should be able to just get the proper
converter/gender changers for the conncetion. A word of advice if your just
getting statred with RS-232 get yourself a "break-out box" from a cable
supplier. It will let you know if your hardware is sending any kind of signal
or is completely silent. Also make sure your 2&3 pins are either crossed or
uncrossed, otherwise known a modem and null-modem, inside the cable. You'll
have to read the docs or play with it to determine which configuration is
required. The breakout box will help.
Brian Wells
Space Power Institute.

Telmo Santiago wrote:

> Hi,
> I need your help!
> I have to do a program with labview (V4-01) to co
ntrol a DC Power Supply
> (from HP). I have a cable (male-male) to connect the power supply to PC and
> i have a DB-9 in DC Power Supply and a DB-25 in PC.
> If you know the solution for this aplication or some ideas send me for
> santiago@alumni.dee.uc.pt
> Thanks.
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Message 2 of 2
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