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App. - 74

 

 

 
Appendix 9.2    Creating a program by using an FB library 

This section explains the procedure to create a program by using an FB library. 

 

Appendx 9.2.1    Programs to be created 

This section explains how to use an FB library with an example of importing an 

analog value from an analog input module. 

 

Example)  Reading an analog value to D10 from the analog input module (Q64AD) 

when the switch (X2) is turned on. 

 

The program can easily be created by using an FB library as follows. 

When the switch (X2) is turned on,

Execution
command

FB for reading AD conversion
data of the specified channel

Analog value
is input.

The analog value is stored in D10.

 

 

POINT 

 

 

The FB created by a user is also available other than the FB in the FB library. 

For the creation method of a new FB, refer to "MELSOFT GX Works2 FB Quick 
Start Guide".