7 Application Instructions API 50-99
D V P - P L C A P P L I C AT I O N M A N U A L
7-69
On
PLC
VCC
Y
Pull-up resistor
Signal output
Drive Y
6. Positive
logic
(negative
polarity) output of BCD code
BCD value
Y output (BCDcode)
Signal output
b
3
b
2
b
1
b
0
8
4
2
1
A
B
C
D
0 0 0 0 0 0 0 0 1 1 1 1
0 0 0 1 0 0 0 1 1 1 1 0
0 0 1 0 0 0 1 0 1 1 0 1
0 0 1 1 0 0 1 1 1 1 0 0
0 1 0 0 0 1 0 0 1 0 1 1
0 1 0 1 0 1 0 1 1 0 1 0
0 1 1 0 0 1 1 0 1 0 0 1
0 1 1 1 0 1 1 1 1 0 0 0
1 0 0 0 1 0 0 0 0 1 1 1
1 0 0 1 1 0 0 1 0 1 1 0
7. Negative logic (positive polarity) output of BCD code
BCD value
Y output (BCDcode)
Signal output
b
3
b
2
b
1
b
0
8
4
2
1
A
B
C
D
0 0 0 0 1 1 1 1 0 0 0 0
0 0 0 1 1 1 1 0 0 0 0 1
0 0 1 0 1 1 0 1 0 0 1 0
0 0 1 1 1 1 0 0 0 0 1 1
0 1 0 0 1 0 1 1 0 1 0 0
0 1 0 1 1 0 1 0 0 1 0 1
0 1 1 0 1 0 0 1 0 1 1 0
0 1 1 1 1 0 0 0 0 1 1 1
1 0 0 0 0 1 1 1 1 0 0 0
1 0 0 1 0 1 1 0 1 0 0 1
8. Scan latched signal display
Positive logic (negative polarity)
Negative logic (positive polarity)
Y output (latch)
Output signal
Y output (latch)
Output signal
1 0 0 1
9. Settings
of
n
:
Groups of 7-segment display
1 group
2 groups
Y output of BCD code
+
-
+
-
Scan latched signal display
+
-
+
-
+
-
+
-
n
0 1 2 3 4 5 6 7
+
: Positive logic (negative polarity) output
-
: Negative logic (positive polarity) output
10. The polarity of transistor output and the polarity of the 7-segment display input can be the same or different by
the setting of
n
.
Содержание DVP-PLC
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