+5V USB 6210

[Steven1978]

Hi,

i have a little problem with the USB 6210. I want to use the +5V Pin (I/O connector) as supply for a smal IC. But i can't measure the 5V? In the doc i found this note:

+5 V Power -- These terminals provide a +5 V power source or can be used to externally power the digital outputs.

How to change the direction (Input/Output)? I use .NET but i couldn't find something in LABView, too.

Can someone help me?

Regards

Steven

[Vans]

Hi Steven,

in which doc did you have a look? The right user manual is the following:

NI USB-621x User Manual

http://digital.ni.com/manuals.nsf/websearch/5452CD6A491AC0288625757B0065EA32

On page 3-3 you find the chapter concerning the 5V power supply.

"Because the USB-621x devices are bus powered, there is a 50 mA limit on the total current that can be drawn from the +5 V terminals and the digital outputs. The USB-621x monitors the total current and drops the voltage on all of the digital outputs and the +5 V terminals if the 50 mA limit is exceeded."

Kind Regards,

Vanessa

AE

[Steven1978]

Hi Vanessa,

thanks for your replay. Yes this was my fault. I didn't look at the total current. I disconnect some digital outputs and now i can measure the +5V at the terminal.

Thanks,

King Regards,

Steven

[Vans]

Hi Steven,

thank you for your fast answer.

If you have further questions feel free to come back to me.

Kind Regards,

Vanessa

[Steven1978]

Thanks for this offer.

Regards,

Steven