Python nidaqmx error 200430 (wrong I/O type)

[jsmith2020]

Hi all,

I'm attempting to use the Python nidaqmx library to make current measurements from one of my NI devices. I keep running into an issue where I'm told that I'm using the wrong I/O type for my virtual channel.

Physical Channel Name: ao0

Virtual Channel Name: Dev1/ao0

I/O Type Required for Virtual Channel: DAQmx_Val_AI

I understand that this is saying I need to use an analog input channel, but that is what I'm using.

with nidaqmx.Task() as task:
    current_channel = task.ai_channels.add_ai_current_chan("Dev1/ao0")
    current_channel.ai_max = 10.0
    current_channel.ai_min = -10.0

Not sure what the issue is.

[Kevin_Price · Accepted solution]

You're specifying an ao channel, you should be specifying ai0.

-Kevin P

[kishan99]

Not, useful. How can we apply voltage in device "NI USB-9264" through python code could you please guide me?