background image

4

Finally, power up your SCXI chassis and computer. Figure 3 shows the
components of an SCXI system cabled to a DAQ board.

For more complete information on how to set up an SCXI system (multiple modules, configuration of different
types of modules, and so on.), refer to the Getting Started with SCXI manual.

SCXI

Cable 

Assembly

SCXI-1303 or

SCXI-1300

Terminal Blocks

SCXI-1102

Module

SCXI Chassis

SCXI-1001

M

AIN

F

R

A

ME

 

SCXI

DAQ Board

Thermocouple

S

C

X

I

1

1

0

Figure 3. SCXI-1102 System Diagram (with DAQ Board)

Step 3. Configure Your Software

Note:

If you are using a plug-in DAQ board, and have not installed and configured the board, you
should do so now. Refer to your hardware user manual for instructions.

To configure your sytem software, first make sure that you have installed NI-DAQ software. Refer to your
NI-DAQ manual for detailed installation instructions.

After you install NI-DAQ software, run either wdaqconf.exe for Windows or NI-DAQ Utilities for Mac OS; then
configure your DAQ board and SCXI chassis. The following figures show configuration settings for Windows.
Run the appropriate configuration utility, selecting the parameters shown below. The following figures include
an AT-MIO-16E-2; your device may differ.

Summary of Contents for SCXI SCXI-1102

Page 1: ...and use They serve as a starting point for more complicated programs Following the programming instructions this note includes some useful background information a brief description of thermocouple op...

Page 2: ...diskette includes example programs written in LabVIEW LabWindows CVI and C for this application Step 1 Connect The Thermocouple Wire the thermocouple to channel 0 on your SCXI terminal block For the J...

Page 3: ...d a cable is attached directly to the SCXI 1102 Note The SCXI 1300 and SCXI 1303 include a jumper to select the MTEMP or DTEMP channel for the cold junction sensor input When used with the SCXI 1102 t...

Page 4: ...d Step 3 Configure Your Software Note If you are using a plug in DAQ board and have not installed and configured the board you should do so now Refer to your hardware user manual for instructions To c...

Page 5: ...menu to open the SCXI Configuration window 1 Select your chassis type 4 Click here to configure Module 1 These settings will be set auto matically for you 2 Select chassis slot 1 3 Select the SCXI 110...

Page 6: ...are shown below 1 Click here and choose SCXI configuration 1 Select your chassis type 2 Select the SCXI 1102 module 3 Select your DAQ board 4 Select chassis slot number 5 Choose multiplex mode 6 Set...

Page 7: ...ws the fundamental steps in programming the SCXI 1102 for thermocouples Start Read Cold Junction Temperature Voltage CJTEMP Read Thermocouple Voltage Convert Thermocouple Reading to Temperature Units...

Page 8: ...pensation When you connect a thermocouple wire to your terminal block you create one or two additional thermocouples where the sensor wire contacts the terminal You must account for the voltage genera...

Page 9: ...ain of 1 or 100 This amplification yields an input voltage range of 10 V or 100 mV This gain can be combined with gain on the DAQ board or module for higher amplification For example an AT MIO 16E 2 c...

Page 10: ......

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