User manual

Chapter 3 Software Overview
NI-DAQ User Manual for PC Compatibles 3-108 ni.com
this function calibrates individual
channels. However, with the
SCXI-1540, calling this function
calibrates every channel. You also
use this function to update the actual
onboard reference voltage value on
the SCXI-1125 EEPROM and to copy
calibration constants to the module’s
default EEPROM load area from
another EEPROM area or from
NI-DAQ memory.
SCXI_Calibrate_Setup
Grounds the amplifier inputs of an
SCXI-1100, SCXI-1101, SCXI-1122,
or SCXI-1141, SCXI-1142, or
SCXI-1143 so that you can determine
the amplifier offset. You also can use
this function to switch a shunt resistor
across your bridge circuit to test the
circuit. This function supports shunt
calibration for the SCXI-1122 module
or the SCXI-1121 module with the
SCXI-1321 terminal block. It also
supports shunt calibration for the
SCXI-1520 module with the
SCXI-1314 terminal block.
SCXI_Change_Chan
Selects a new channel of a multiplexed
module that has previously been set up
for a single-channel operation using the
SCXI_Single_Chan_Setup
function.
SCXI_Configure_Connection Sets the connection type parameter to
a specified type on a given channel or
all channels on the SCXI-1520 and
SCXI-1540 modules. This function
also allows programmatic control of
external synchronization.
SCXI_Configure_Filter
Sets the specified channel to the
assigned filter setting on any SCXI
module with programmable filter
settings.