Mitsubishi MELSEC QS Series, Руководство пользователя

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9
DEVICE EXPLANATION
9
- 22 9.2 Internal User Devices
9.2.8 Timer (T)
(b) Accuracy
Measured value at END instruction is added to the current value when the
OUT T instruction is executed.
If the timer coil is OFF when the OUT T instruction is executed, the current value
is not updated.
The timer response accuracy from when reading input (X), until when outputing it
is + (2-scan time + timer time limit setting).
Diagram 9.22 Timer accuracy (For 10ms)
X100
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
X100 external input
CPU module's X100
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
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