LSIS XBC-DR14E - Timer Processing

Chapter 5 Program Configuration and Operation Method
5- 6
5.1.5 Timer processing
The XGB series use up count timer. There are 5 timer instructions such as on-delay (TON), off-delay (TOFF),
integral (TMR), monostable (TMON), and re-triggerable (TRTG) timer.
The measuring range of 100msec timer is 0.1 ~ 6553.5 seconds, 10msec timer is 0.01 ~ 655.35 seconds,
and that of 1msec timer is 0.001 ~ 65.53 seconds. Please refer to the „XG5000 User 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 (Current value=Preset value), the timer output relay
(Txxxx) 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.
Preset value
Timer output relay
Timer type
Preset value (PV)
t1+PT
t0
t1
t2
t3
t4
t5
t5+PT
t0
t1
t2
t2
t5
Input condition
Output relay
Preset value
Current value
t0
t0+PT
t0
t1
t2
t3
t4
t5
t5
t1
t4+PT
t0
t1
t2
t3
t4
t5
Input condition
Output relay
Preset value
Current value
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