What is the maximum and minimum values of current in PXI-6251?

[KRAZE4LV]

I want to read 4mA to 20mA with NI 6251 DAQ card. Its not able to receive the data. The 6251 is voltage type DAQ card can it read the current inputs?

 What are maximum and min limit?

[Dennis_Knutson]

A quick search should have shown many results for your question. Use a 500 ohm resistor and take a diiferential voltage reading.

[KRAZE4LV]

Thanks Dennis! I used 250ohms which worked well in reading the values.

Just a simple question:::::

I have read about DAQmx but i am confused why we write at Analog/Dgital output and read at DI/AI. Normally, we should write at input and read at output, input goes output..but i the VI we always use output(set the value which is read at input.)

[Dennis_Knutson]

Normally, when I want to get what is being input to a device, I would read the device. Normally, if I would want a device to output someting, I would command the device to do a write.