Mitsubishi QCPU (Q Mode), Руководство пользователя

Страница: 269 / 456

10 - 22 10 - 22
MELSEC-Q
10 DEVICES
Timer Processing and accuracy
(a) When an OUT T instruction is executed, the following is processed: timer
coil ON/OFF, current value update and contact ON/OFF processing. Timer
current value update and contact ON/OFF processing are not performed at
END processing.
Processing content
Coil ON/OFF
Current value update
Contact ON/OFF
X0
T0
K10
[Ladder example]
Sequence
program
END OUT T0 END
[Processing at execution of OUT T0 instruction]
(b) When the OUT T instruction is executed, the current value is added to the
scan time measured at the END instruction.
If the timer coil is OFF when the OUT T
instruction is executed, the
current value is not updated.
X0
T0
H
[Ladder example]
K8
QCPU's X0
2 1 1 1 2 1 1 2 1
2 3 2 3 2 3
2+3=5 0+2=2 5+2=7 7+3=10
OUT T0
END
processing
OUT T0 OUT T0 OUT T0 OUT T0 OUT T0
Input reading timing
(+1 scan) Timer accuracy
- (1 scan time + timer time
limit setting) to 1 scan time
Program
X0 external input
T0 coil
2
10 ms
measurement
T0 contact
Measured value
at END instruction
T0 current value
[Current value update timing]
ON
OFF
OFF
OFF
ON
ON
OFF
ON
3
2 3 2 3
END
processing END
processing END
processing END
processing END
processing