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CHAPTER 5 DEVICES
5
5.2 Internal User Devices
5.2.10 Timer (T, ST)
(b) Accuracy
The value obtained by the END instruction is added to the current value when the OUT T or OUT ST
instruction is executed. The current value is not updated while the timer coil is off even if the OUT T or OUT
ST instruction is executed.
Accuracy of the timer response that is from reading input (X) to output the data are up to
"2-scan time + timer limit setting".
211 121 121
23 23 23
OUT T0 OUT T0 OUT T0
OUT T0
OUT T0
OUT T0
2
ON
OFF
OFF
OFF
ON
ON
OFF
ON
3
23 23
[Program example]
[Current value update timing]
END
processing
END
processing
END
processing
END
processing
END
processing
END
processing
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 from timer coil on to contact on
- (1 scan time + timer limit setting) to (1 scan time)
On timing for coil of the timer
Input reading timing
0 + 2 = 2 2 + 3 = 5
5 + 2 = 7
7 + 3 = 10