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Function Blocks
4AND Function Block
Revision 11
HC900 Hybrid Control Designer Function Block Reference Guide
75
2/07
4AND Function Block
Description
The
4AND
label stands for the
AND Boolean function (4 Inputs).
This block is part of the
Logic
and
Fast Logic
categories.
Function
Turns digital output (OUT)
ON
when inputs X1 through X4 are
ON
. Thus,
•
If all inputs are ON, then:
OUT = ON.
•
If any input is OFF, then:
OUT = OFF.
Input
X1
= First digital signal
X2
= Second digital signal
X3
= Third digital signal
X4
= Fourth digital signal
ATTENTION
Unused values must be set to 1 or inverted.
Output
OUT
= Digital signal controlled by status of input signals