Download JUL 182005

MUX2 is configured to operate in 2-wire mode. PXI MUX2 chO is connected to comO
and comO is connected to abO. This causes the PGA-based amplifier output to be
connected to the DMM. The DMM is initialized and configured to take voltage readings
and adapting the resolution and range of the measured to the signal automatically. The
voltage is read and its value checked to be within range. The PXI MUX 2 switches are
disconnected and the device is placed in its default state. The steps are carried out by
predefined subVIs available in the National Instruments Data Acquisition Package (NIDAQ). The subVI outputs the voltage reading. A block diagram for the program flow in
the Measure EAl_VOUT subVI is shown in Figure 36.
Figure 36. Program flow for the Measure EA1_VOUT subVI.
65