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60
4-3-4
Timing Chart
The following chart shows timing relationships between the command bits (input
bits) and output bits in preset mode when the counter is reset during the count-
down.
5
5
1
0
1
0
1
0
1
0
1
0
b
b
a
b
b
a
b
b
a
2
2
4
2
4
4
6
START (word
n, bit 00) or
Control Input
IN2*
Counting flag
Word n + 4,
bit 00
Internal
outputs
word n + 9
External
outputs
Word n + 9
ENABLE
OUTPUT
Word n,
bit 02
ENABLE
FORCED
OUTPUT
Word n,
bit 07
a
b
a
ÉÉÉÉÉ
ÉÉÉÉÉ
ÉÉÉÉÉ
ÉÉÉÉÉ
ÉÉÉÉÉ
ÉÉÉÉÉ
ÉÉÉÉÉ
ÉÉÉÉÉ
ÉÉÉÉÉ
ÉÉÉÉÉ
1
0
1
0
RESET
COUNTER
Word n, bit 06
4
Preset counter
value
Counter value
External outputs
Outputs to connector
terminals
a: Normal outputs
b: Forced outputs
Lit
Not lit
RUN
indicator
*Pin 4 on the back-panel DIP switch determines
which start signal is used. ON: IN2; OFF: START,
1
1, 2, 3... 1.
The start signal is effective on its rising edge.
2.
External outputs are not possible while ENABLE OUTPUT is OFF. The
bit does not affect internal outputs.
3.
The counter value and outputs are reset when RESET COUNTER is
set.
Preset Mode
Section 4-3
Содержание SYSMAC C200H-CT001-V1
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Страница 3: ...C200H CT001 V1 CT002 High speed Counter Units Operation Manual Revised September 2000...
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