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SC100/200 Series Function Block Application Manual EM-6460-C
6.2.3 FREQUENTLY USED CIRCUIT CONFIGURATIONS
■
ONE-SHOT OUTPUT
Y
X
X
Y
• One-shot output at an input rising
Y
X
X
Y
• One-shot output at an input sinking
INPUT X
OUTPUT SHOT Y
INPUT NOT
X
OUTPUT SHOT Y
■
LATCHING CIRCUIT
Y
X2
set
X1
Y
• N.O. reset input
Y
• N.C. reset input
Y
Y
INPUT X1
OR Y
AND X2
OUTPUT Y
INPUT X1
OR Y
AND NOT
X2
OUTPUT Y
reset
X2
set
X1
Y
reset
X2
X1
X1
X2
■
FLASHING CIRCUIT
y1
y1
y1
• ON-OFF by computation cycle (0.5 sec. ON - 0.5 sec. OFF with 0.5 sec. computation cycle)
INPUT NOT
y1
OUTPUT y1
y1
y1
y3
• 1 sec. ON - 0.5 sec. OFF or 0.5 sec. ON - 1 sec. OFF (with 0.5 sec. computation cycle)
INPUT y2
OUTPUT y1
INPUT y3
AND NOT
y1
OUTPUT y2
INPUT NOT
y1
OUTPUT y3
y2
y2
y2
y1
y3
y3
y1
(1)
(2)
[ OPERATION ]
• Output y1 turns on when Input y1 is off at the first (1) cycle.
• Output y1 turns off when Input y1 is on at the second (2) cycle.
• This program does not function normally with a mechanical
contact.
[ OPERATION ]
• Output y3 turns on at the first (1) cycle.
• Output y2 turns on when Input y3 is on at the second (2) cycle.
• Output y1 turns on when Input y2 is on at the third (3) cycle,
and the y2 and y3 turn off as a result.
• A downstream command result changes in turn its upstream
command condition by every computation cycle.
computation cycle
(1)
(2)
(3)
computation cycle
0.5 sec. ON - 1 sec. OFF
1 sec. ON - 0.5 sec. OFF
