User manual

Chapter 3 Software Overview

The

SCXI_Set_Gain

function changes the gain or range of the

SCXI-1100, SCXI-1102/B/C, VXI-SC-1102/B/C, SCXI-1122,

SCXI-1125, SCXI-1126, SCXI-1141, SCXI-1142, SCXI-1143,

SCXI-1520, SCXI-1530, SCXI-1531, or SCXI-1540 module. The module

maintains this gain or range setting until you call the function again to

change it. You can also do any other module-specific programming at this

point, such as

SCXI_Configure_Filter or SCXI_Set_Input_Mode

To achieve software scanning, select a different channel on the module

using the

SCXI_Change_Chan

function after acquiring data from the

channel you want with the

DAQ

functions. If you want a channel on

a different module, call the

SCXI_Single_Chan_Setup

function again

to enable the appropriate module outputs and manage the SCXIbus signal

routing.

Figure 3-43 shows the function call sequence of a single channel or

software-scanning application using a Simultaneous Sample and Hold

(SSH) module in multiplexed mode.