how to display a signal in waveform graph from serial port with this protocol?

[RavensFan]

TBD had a good point about making sure all the VISA configure input terminals were wired up.  I missed that one.

I'm a little confused by what you mean by "0k".  Also be sure you are using the correct kind of cable, whether it needs to be a straight through cable or a null modem cable.  What kind of device are you connecting to, what brand?  All you listed earlier was "89C2051".

When having trouble with LabVIEW and serial devices, it is a good idea to try to connect to the device using Windows Hyperterminal (under accessories and communications on the start menu.)  There you can confirm that you have the baud rate and serial port parameters configured correctly and see what kind of data is coming in.  Any complications being caused by the LabVIEW program are eliminated so you can determine if the problem is caused by something else.

[frotico]

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Ravens Fans and TBD - thank you a lot!

REASON:
My cable weren't cross Rx/Tx and the kit's cable were bronken.
I fixed it and the VI work!

Althought the 1st cable test I did was well,
When I tried to read with hyperterminal I realized that probally the cable was the problem!

In time:
- '0k' means: 'all right', it became from 'zero kill' expression used in WW
- The cable is a commom cross DB9 RS-232.