Mitsubishi Electric melsec q00ujcpu User Manual page 369

(b)
Accuracy
The value obtained by the END instruction is added to the current value when the
ST instruction is executed.
The current value is not updated while the timer coil is off even if the OUT T
executed.
[Ladder example]
X0
[Current value update timing]
Program
External
input to X0
CPU module's
X0
Coil of T0
Contact of T0
10ms counting
Count with END
instruction
Current value
of T0
Accuracy of the timer response that is from reading input (X) to output the data is up to "2-scan time
+ timer limit setting".
9 - 24
H
TO
OUT T0 OUT T0
END END
processing processing
ON
OFF
ON
OFF
ON
OFF
OFF
2 3
1 2 1
2 3
0+2=2
Input reading timing
(+1 scan)
Figure 9.26 Timer accuracy (in the case of 10ms)
K8
OUT T0 OUT T0
OUT T0
END END
processing processing
1 2 1 2 3 1
2 3
2+3=5 5+2=7
Timer accuracy
- (1 scan time + timer limit setting)
to (1 scan time)
OUT T
or OUT ST instruction is
OUT T0
END END
processing processing
ON
2 1 2 3
2 3
7+3=10
or OUT