DVP-ES2/EX2/EC5/SS2/SA2/SX2/SE&TP Operation Manual - Programming
2.10 T (Timer)
The units of the timer are 1ms, 10ms and 100ms and the counting method is counting up. When
the present value in the timer equals the set value, the associated output coil will be ON. The set
value should be a K value in decimal and can be specified by the content of data register D.
The actual set time in the timer = timer resolution× set value
Ex
: If set value is K200 and timer resolution is 10ms, the actual set time in timer will be 10ms*200 =
2000ms = 2 sec.
General Timer
The timer executes once when the program reaches END instruction. When TMR instruction is
executed, the timer coil will be ON when the current value reaches its preset value.
When X0 = ON, TMR instruction is driven. When current value achieves K100, the assocailte timer
contact T0 is ON to drive Y0. If X0 = OFFor the power is off, the current value in T0 will be cleared
as 0 and output Y0 driven by contact T0 will be OFF.
T0
Y0
X0
TMR T0 K
1
00
X0
T0
Y0
K100
10 sec
present
value
Accumulative Timer
The timer executes once when the program reaches END instruction. When TMR instruction is
executed, the timer coil will be ON when the current value reaches its preset value. For
accumulative timers, current value will not be cleared when timing is interrupted.
Timer T250 will be driven when X0 = ON. When X0 = OFFor the power is off, timer T250 will pause
and retain the current value. When X0 is ON again, T250 resumes timing from where it was paused.
T250
Y0
X0
TMR
T25
0 K100
X0
T2
Y0
K100
T1+T2=10sec
T250
T1
present
value
Timers for Subroutines and Interrupts
Timers for subroutines and interrupts count once when END instruction is met. The associated
output coils will be ON if the set value is achieved when End instruction executes. T184~T199 are
the only timers that can be used in subroutines or interrupts. Generals timers used in subroutines
and interrupts will not work if the subroutines or interrupts are not executing.
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