Thread Subject: digitalio: I would like to change the voltage

Hi all,

I got USB6009 and assigned some channels as 'out' and check the difference of
voltage between those pins and GND, and found that difference is only 1.8 V.
Actually I expected it can be more than 3 V.
If you know the command to change that difference, could you please let me know?
And if you are sure there is no way, please let me know.

Thank you in advance!!
Ryo

Hi Ryo,

If you are using the digitalio with your digital ports on the USB 6009 then you would digital outputs that 0 ( 0V) and 1 (5V) (This is automatic).
I tried to measure them on a oscilloscope and saw the voltage to be around 1.8 V as well but with a multimeter it showed the correct value ( this maybe due to impedance mismatch).
The best way to measure would be set the multimeter to check for logic level (low or high).

If you want to send analog voltage then you should consider using analogoutput.

~ Chirag


"Ryo " <ryohei.tomioka@meduniwien.ac.at> wrote in message <hejf7g$huh$1@fred.mathworks.com>...
> Hi all,
>
> I got USB6009 and assigned some channels as 'out' and check the difference of
> voltage between those pins and GND, and found that difference is only 1.8 V.
> Actually I expected it can be more than 3 V.
> If you know the command to change that difference, could you please let me know?
> And if you are sure there is no way, please let me know.
>
> Thank you in advance!!
> Ryo