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Function Blocks
8AND Function Block
78
HC900 Hybrid Control Designer Function Block Reference Guide
Revision 11
2/07
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
H
Figure 17 shows a Function Block Diagram configuration using a 8AND function block. The function
block is used in a startup sequence to enable heaters when 6 input conditions are true.
Figure 17 8AND function block example