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Please take a look at our Knowledge Article that provides a solution to the behavior that you're seeing:
"Error -200077 Using Analog Output Task in Python"
You'll need to change the way you define the task as described in that article.
thank you for your replay, I will have a look.
I try the code you recommended:
import nidaqmxwith nidaqmx.Task() as task: task.ao_channels.add_ao_voltage_chan("Dev1/ao0", 0, 5,) print('1 Channel 1 Sample Write: ') print(task.write(1.0)) task.stop()
It does not work, it gives the same error!
OK, now it works I forgot name_to_assign_to_channel which even if you do not have specified you have to add ''!
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