LS Industrial Systems MASTER-K80S, Руководство пользователя

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Chapter 5 CPU Module
5-
６
5.2.5 Timer Processing
The MASTER-K series uses up count timers. There are 5 timer instructions such as on-delay (TON), off-delay (TOFF),
integral (TMR), monostable (TMON), and re-triggerable (TRTG) timer.
The measuring time range of 100msec timer is 0.1 ~ 6553.5 sec, and that of 10msec timer is 0.01 ~ 655.35 sec. Please
refer the ‘MASTER-K programming manual’ for details.
1) On delay timer
The current value of timer starts to increase from 0 when the input condition of TON instruction turns on. When the current
value reaches the preset value, the timer output relay turns on.
When the timer input condition is turned off, the current value becomes 0 and the timer output relay is turned off.
2) Off delay timer
The current value of timer set as preset value and the timer output relay is turned on when the input condition of TOFF
instruction turns on. When the input condition is turned off, the current value starts to decrease. The timer output relay is
turned off when the current value reaches 0.
Timer input condition
Timer output relay
Preset value (PV)
Current value
t1
t2
t3
t3
+ PT
t1 + PT
PT
PT
Timer input condition
Timer output relay
Preset value (PV)
Current value
t1
PT
PT
t2 t3
t3 + PT
t1 + PT