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Function Blocks
8OR Function Block
Revision 11
HC900 Hybrid Control Designer Function Block Reference Guide
247
2/07
8OR Function Block
Description
The
8OR
label stands for the inclusive
OR (8 Inputs) Boolean logic function
.
This block is part of the
Logic
and
Fast Logic
categories.
Function
Turns digital output (OUT) OFF when inputs X1 through X8 are off, thus:
•
If input X1
o
r X2
or
X3
or
X4
or
X5
or
X6
or
X7
or
X8 is
ON
, then:
OUT = ON.
•
If all inputs are OFF, then:
OUT = OFF.
Input
X1
= First digital signal
X2
= Second digital signal
X3
= Third digital signal
X4
= Fourth digital signal
X5
= Fifth digital signal
X6
= Sixth digital signal
X7
= Seventh digital signal
X8
= Eight digital signal.
Output
OUT
= Digital signal controlled by status of input signals
Содержание HC900
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