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Channel swapping behavior with a DT9847 Series module at high...

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Channel swapping behavior with a DT9847 Series module at high sampling rates.


Channel swapping may occur when a DT9847 Series module samples data across multiple analog input channels, at high sampling rates, and while connected to newer high performance PC's.

If using a DT9847 Series module to acquire multiple channels at high sampling rates and you observe the data values from one channel shift over to the display on a different channel, then the firmware for your DT9847 Series module needs to be updated.  The acquisition should not continue to display the channel swapping behavior.  Instead, the software application (i.e. QuickDAQ) should stop the acquisition and alert the user with a FIFO overflow error.  Newer firmware is now available, which properly sets the FIFO overflow flag bit.   The firmware is loaded each time the device is enumerated.  Hardware units do not have to be returned to our factory.

Use the following link to download, save, and then install updated files for the DT9847 Series module:
ftp://ftp.mccdaq.com/downloads/Pre_Release/OpenLayers_beta_v7.8.4/



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Article ID: 50763

Last Modified:12/3/2018 6:38:36 PM

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