RS 232

[Veeru]

I am using RS232 to commuincate with the instrument.

In windows 2000, I can read the characters which i have sent but in XP i am just getting 0's.

Thanks

[Cory_K]

Did you ensure that all of the configuration is identical?
For example:

- COM port

- Baud Rate

- Stop bits

... etc

If these are different computers, this may have changed.

[Veeru]

Thanks cory

Everything is same

[GerdW]

Hi veeru,

have you tried the cross-check using HyperTerminal on both computers?

It's common practice to check a serial connection with HyperTerminal before letting LV do the work...

[Mark_Yedinak]

Have you run NI Spy to see what is happening? Also, are you using the same serial cable? If you are using different cables are the cables the same type, i.e. NULL modem versus straight through?

[Cory_K]

I would recommend GerdW's advice.

Try reading the data in with something like Hyperterminal, just to make sure you are getting data.

It may not be an issue on LabVIEW's end.

[Veeru]

Thanks Everyone

I am using the same cable, also tried communicating via heyperterminal between PC's, its working. But when i try with the instrument it looks like its communicating but not getting data back

Thanks

[GerdW]

Hi veeru,

do you get any response from the device on any of the computers? Or do you only get communication between the PCs?

Can you show your communication VI?

[Veeru]

Thanks GerdW

I am getting communication only between PC's.

Thanks

[GerdW]

Hi Veeru,

in your original question you said something different...

Have you tried to use a different cable? Something like crossed vs. direct connection?