Chapter 3
Configuring and Testing
©
National Instruments Corporation
3-3
Creating a Global Channel or Task
To create a new voltage, temperature, or current input NI-DAQmx global
task or channel, complete the following steps:
1.
Double-click
Measurement & Automation
on the desktop.
2.
Right-click
Data Neighborhood
and select
Create New
.
3.
Select
NI-DAQmx Task
or
NI-DAQmx Global Channel
, and click
Next
.
4.
Select
Analog Input
.
5.
Select one of the following:
•
Voltage
•
Temperature
and then select one of the following:
–
Iex Thermistor
–
RTD
–
Thermocouple
–
Vex Thermistor
•
Current
6.
If you are creating a task, you can select a range of channels by holding
down the <Shift> key while selecting the channels. You can select
multiple individual channels by holding down the <Ctrl> key while
selecting channels. If you are creating a channel, you can only select
one channel. Click
Next
.
7.
Name the task or channel and click
Finish
.
8.
Select the channel(s) you want to configure. You can select a range of
channels by holding down the <Shift> key while selecting the
channels. You can select multiple individual channels by holding down
the <Ctrl> key while selecting channels.
Note
If you want to add channels of various measurement types to the same task, click
the
Add Channels
button to select the measurement type for the additional channels.
9.
Enter the specific values for your application in the
Settings
tab.
Context help information for each setting is provided on the right
side of the screen. Configure the input signal range using either
NI-DAQmx Task
or
NI-DAQmx Global Channel
. When you set the
minimum and maximum range of
NI-DAQmx Task
or
NI-DAQmx
Global Channel
, the driver selects the best gain for the measurement.
