IDEC SmartAXIS FT9Z-1A01, User Manual

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8: I
NSTRUCTIONS
/ F
UNCTION
B
LOCKS
R
EFERENCE
8-10 S
MART
AXIS P
RO
/ L
ITE
U
SER
'
S
M
ANUAL
FT9Y-B1378
Logical Operation FB
This section describes the logical operation FB of the SmartAXIS and its functions. The logical operation FB performs logical
operations on input signals and output the result.
Symbol Name and Diagram Function
Output
inversion
FBD manual
page
AND
Logical AND
Finds logical AND for a maximum of four input
signals (ON/OFF) and outputs the result.
– 7-1
NAND
Negative Logical AND
Finds negative logical AND for a maximum of four
input signals (ON/OFF) and outputs the result.
– 7-2
OR
Logical OR
Finds logical OR for a maximum of four input signals
(ON/OFF) and outputs the result.
– 7-3
NOR
Negative Logical OR
Finds negative logical OR for a maximum of four
input signals (ON/OFF) and outputs the result.
– 7-4
XOR
Exclusive Logical OR
Finds negative logical OR for a maximum of four
input signals (ON/OFF) and outputs the result.
– 7-5
XNOR
Negative Exclusive Logical OR
Finds negative exclusive logical OR for a maximum of
two input signals (ON/OFF) and outputs the result.
– 7-6
NOT
Negation
Outputs the result of negating the input signal (ON/
OFF).
– 7-7
SOTU
Shot up
Turns on the output for one scan when the input
signal changes from off to on.
– 7-8
SOTD
Shot down
Turns on the output for one scan when the input
signal changes from on to off.
– 7-9
TRUTH
Truth Table
The output against 16 bit patterns of the four input
signals can be configured as a truth table, and the
output turns on or off according to those settings.
X 7-10
&
IN1 OUT
IN2
IN3
IN4
&
IN1 OUT
IN2
IN3
IN4
≥1
IN1 OUT
IN2
IN3
IN4
≥1
IN1 OUT
IN2
IN3
IN4
=1
IN1 OUT
IN2
=1
IN1 OUT
IN2
1
IN OUT
SOTU
IN OUT
SOTD
IN OUT
TRUTH
IN1 OUT
IN2
IN3
IN4