Figure 17 8And Function Block Example - Honeywell HC900 Reference Manual

Function Blocks
8AND Function Block
Block properties
Double click on the function block to access the function block properties dialog box.
Input state
You can invert Input 1, 2, 3, 4, 5, 6, 7, 8 or all. If the input is inverted, an input line that is ON is seen as
OFF ("N" on diagram next to inverted input).
ATTENTION
Unused values must be set to 1 or inverted.
Example
F igure 17 shows a Function Block Diagram configuration using a 8AND function block. The function
H
block is used in a startup sequence to enable heaters when 6 input conditions are true.
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Figure 17 8AND function block example

HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07