Справочник Пользователя для National Instruments FP-3000

Chapter 3

Example Applications

3-10

©

 National Instruments Corporation

1.

Go to the 

MODE_BLK

 parameter of the Resource block and set the 

TARGET

 to 

Auto

.

2.

Go to the 

MODE_BLK

 parameter of the block you created and set the 

TARGET

 to 

Auto

. 

3.

Re-read the 

MODE_BLK

 parameter. The 

ACTUAL

 field should go to 

Auto

. If it does not, refer to Appendix C, 

, for 

more information. 

Once the block goes to 

Auto

, it is fully operational. You can look at the 

value of 

OUT

 and see the temperature reading from the thermocouple in 

degrees Celsius. The temperature reading is ready to be used for control.

If you are only interested in taking thermocouple readings and not 
interested in closed loop control, you are finished with this example.

Instantiate an I/O block for the FP-AO-200 channel to control the heating 
element. Since the heating element is connected to an FP-AO-200 module, 
you must create an FP-AO-200 block. To instantiate an I/O block, follow 
these steps:

1.

Right-click on FP-3000 in the configurator.

2.

Select Instantiate New Block. This causes a dialog box to appear that 
lists all of the blocks supported by the FP-3000 and allows them to be 
instantiated. 

3.

Select FP AO 200 Block from the list, then click on the OK button.

By default, new blocks are created without a tag. To assign a tag, follow 
these steps: 

1.

Right-click on the new block, then select Set Tag. 

2.

Enter the tag you choose in the dialog box. The tag can be up to 
32 characters in length and should not contain the dot (“.”) character.

3.

Click on OK.