10
DEVICE EXPLANATION
10
- 33
10.2 Internal User Devices
10.2.10 Timer (T)
(b) Accuracy
Measured value at END instruction is added to the current value when the
OUT T instruction is executed..
The timer response accuracy from when reading input (X), until when outputing it
is + (2-scan time + timer time limit setting).
Figure 10.25 Accuracy of timer (For 10ms)
X0
T0
H
K8
2
3
2
3
2
3
OUT T0
OUT T0
OUT T0
OUT T0
OUT T0
OUT T0
ON
OFF
OFF
OFF
ON
ON
OFF
ON
2
1
1
1
2
1
1
2
1
2
3
2
3
2
3
[Ladder example]
[Current value update timing]
Program
X0 external input
CPU module's X0
T0 coil
T0 contact
10ms measurement
Measured value at
END instruction
T0 current value
END
processing
0+2=2
2+3=5
5+2=7
7+3=10
Timer accuracy
to (1 scan time)
(1 scan time + timer time limit setting)
Input reading timing
(+1 scan)
END
processing
END
processing
END
processing
END
processing
END
processing
-
