Hardware system use PCI4474， sample rate is 25600，sometimes when I start to acquire accelrameter analog signal has error "A system call returned an error. The operation could not be completed as specified.", this error doesn't happen all the time, maybe several hours. I have obey DAQmx configure rules, configure task, start task, start acquire , end acquire, stop task, clear task. I have 3 different type hardware, their design are the same, only accelrameter are not only one, are not the same, every hardware system has 2 accelrameter. Now two set hardware have DAQmx Error, only one doesn't have error.
