Function Blocks 
DI Function Block 
136    HC900 Hybrid Control Designer Function Block Reference Guide  Revision 11 
  2/07 
DI Function Block 
Description 
The DI label stands for Discrete Input. 
 
 
 
This block is part of the 
I/O Blocks categories.  
Function 
Discrete input blocks are used to process the digital status of a specific channel of a discrete input module. 
Each block requires a module and channel number during configuration. The Input status may be inverted. 
If Digital Point is ON, then OUT = ON. 
Output 
OUT
 = Digital Signal 
Block properties 
 
 
 
Double click on the function block to access the function block properties dialog box.