Bool Boolean Logic Function Block - Honeywell HC900 Reference Manual

Function Blocks

BOOL Boolean Logic Function Block

BOOL Boolean Logic Function Block
Description
The BOOL label stands for Free Form Logic.
This block is part of the Logic category.
Function
Read digital inputs A through H and calculates the output based on specified Boolean logic function.
Offers the following Boolean logic functions:
•
AND entered as
OR entered as +
NOT entered as not
XOR entered as ^
( - Left parenthesis
) - Right Parenthesis
Inputs
A = Block Input 1
B = Block Input 2
C = Block Input 3
D = Block Input 4
E = Block Input 5
F = Block Input 6
G = Block Input 7
H = Block Input 8
Output
ERR = error during execution of the equation. Error = ON. No Error = OFF.
OUT = Calculated Output (ON or OFF)
A maximum of 50 tokens per equation is allowed. A token is an operator, a variable, or a pair of
parentheses.
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HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07