ABB AI620 3BHT300005R1 Digital input card

ABB AI620 3BHT300005R1 Digital input card

The memory chip is similar to the Channel and Gain FIFO on an MIO-16 board, except that instead of having a channel number and gain setting for each entry, the scan list contains a slot number and a sample count for each entry. The list in Slot 0 determines which module is being accessed and for how many samples. Make sure that the lists on the data acquisition board and Slot 0 are compatible so that the samples are acquired as you intend. See your SCXI-1000/1001 User Manual for more information. In either Parallel or Multiplexed scanning mode, you need a source for the HOLDTRIG source. Typically, the data acquisition board supplies the signal when you use Interval-Scanning mode. See Chapter 5, Programming, for more information on Interval-Scanning mode. The HOLDTRIG signal can also be supplied at the front connector of the SCXI-1140 and sent out the HOLDTRIG pin of the rear signal connector to the data acquisition board to trigger each scan interval.

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