DAQ VXI-SC-1102 Manual de Instruções Página 94

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Chapter 14 SCXI Hardware
DAQ Hardware Overview Guide 14-20 www.ni.com
The following MIO and AI device resources are reserved by SCXI:
The E Series devices use digital I/O lines 0, 1, 2, and 4 for
communication with SCXI. Other digital I/O lines are available for
Digital I/O functions and you can configure them for either input or
output on an individual basis.
When you use an SCXI-1140 module, the scan interval counter on the
MIO or AI device controls the track/hold state of the module. When
you set up the module for a single-channel operation, NI-DAQ reserves
the scan interval counter. Refer to the
SCXI_Track_Hold_Setup
function for more information.
The SCXI-1100 module drives the MIO or AI device analog input
channel 0; if you use the SCXI terminal block with the temperature
sensor in the DTEMP configuration, the SCXI-1100 also drives analog
input channel 1 of the MIO or AI device (except parallel ports).
The SCXI-1120, SCXI-1120D, and SCXI-1125 modules drive analog
input channels 0 through 7 on the MIO or AI device, even if you are
operating the module in multiplexed mode. In addition, if the
temperature sensor on the terminal block is in the DTEMP
configuration, the SCXI-1120 and SCXI-1120D also drive analog
input channel 15. Notice that you must operate the MIO or AI device
in or NRSE mode to read the temperature sensor in the DTEMP
configuration.
The SCXI-1121 module drives analog input channels 0 through 3 on
the MIO or AI device, even if you are operating the module in
multiplexed mode. In addition, if the temperature sensor on the
terminal block is in the DTEMP configuration, the SCXI-1121 also
drives analog input channel 4.
The SCXI-1122 module drives analog input 0; if you use the SCXI
terminal block with the temperature sensor in the DTEMP
configuration, the SCXI-1122 also drives analog input channel 1 of the
MIO or AI device.
The SCXI-1140 module drives analog input channels 0 through 7 on
the MIO or AI device, even if you are operating the module in
multiplexed mode.
The SCXI-1141, SCXI-1142, and SCXI-1143 modules drive analog
input channels 0 through 7 on the MIO or AI device, even if you are
operating the module in multiplexed mode.
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