Counter Input Error Reporting with M Series USB and C Series

With C Series and M Series USB devices (except bus-powered M Series devices), buffered counter input error reporting occurs every 128 samples for high-speed USB and every 16 samples for full-speed USB. When an error is detected, the task stops. To prevent the acquisition of incorrect samples, only data within either the 128- or 16-sample group is reported. For instance, if you attempt to acquire 256 samples, and an error occurs after sample 250, the task returns 128 samples instead of 249. If you attempt to acquire a number of samples less than or equal to 128 or 16 and an error occurs, the task returns no samples.