I have defined a task in MAX that includes two channels. The specifications for the NI6251 states that a sample rate for multiple channels of 1M/s is possible. However, when I test the task at 1M/s in MAX, I get an error that tells me to reduce the sample rate:
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Error -200019 occurred at Sensor01 - DAQ Assistant
Possible Reason(s):
ADC conversion attempted before the prior conversion was complete.
Increase the period between ADC conversions. If you are using an external clock, check your signal for the presence of noise or glitches.
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A sample rate of 600k/s gives the following warning:
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Warning 200011 occurred at DAQ Assistant
Possible Reason(s):
Clock rate specified is so high that it violates the settling time requirements for the acquisition.
Reduce the clock rate, or the accuracy of the measurement might be compromised.
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Why cannot I run scan two channels at the maximum specified sample rate? What am I missing?