Honeywell HC900 - Figure 31 8 Point DI Function Block Example

Function Blocks
8DI Function Block
Revision 11 HC900 Hybrid Control Designer Function Block Reference Guide 141
2/07
Failsafe Failsafe ON
N/A
set the output of the block to OFF
when failure is detected.
Select from drop-
down menu
Failsafe OFF
N/A
set the output of the block to ON
when failure is detected.
for each input.
Failsafe
HOLD
N/A
hold the output at the last value just
prior to the failure being detected.
Example
HFigure 31 shows a Function Block Diagram using 8 point DI function blocks.
Figure 31 8Point DI function block example