Honeywell HC900 - BOOL Boolean Logic Function Block

Function Blocks
BOOL Boolean Logic Function Block
86 HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07
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.