Keysight M9187A, Руководство для стартапов

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22 Keysight M9187A PXI Digital IO Startup Guide
Module Functional Description
The module’s 32 channel output section comprises High Side and Low Side
drivers and Shift Registers. The shift registers control the output drivers and are
supplied with serial data from the PCI Bridge via the control logic. Each output
can be switched to either sink current to the GND terminal via a Low Side driver
device, or source current from the V
ext
terminal via a High Side driver device. The
outputs can also be tri-stated (off).
For serial input, the module’s 32 input channels are attenuated, then multiplexed
through an analog multiplexer. A programmable threshold detector circuit
converts the analog signal into a digital data stream determined by the
programmable high and low thresholds. The input data is then read by the PCI
Bridge via the control logic.
Module Programming
Refer to the Soft Front Panel Help file for detailed operation of the module. For
programming information, refer to the IVI C and LabVIEW driver help files. These
help files are located on the Digital IO Module Software and Product Information
CD