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Chapter 2. Functions
2-9
2.3.6
Timer relay : T
MASTER- K series have 100msec and 10msec timer. The timing method is v arious according to
the timer instructions (TON, TOFF, TMR, TMON, TRTG). The maximum timer setting value is
hFFFF by hexadecimal or 65535 by decimal. The following figure shows the types and timing
methods of each timer instruction.
< Figure 3. Types and timing methods of timer instructions >
Timer
instruction
Description
Timing
method
Time chart
TON
ON Delay
Increment
TOFF
OFF Delay
Decrement
TMR
Accumulation
ON Delay
Increment
TMON
Monostable
Decrement
TRTG
Retriggerable
Decrement
Timer
instruction
No. of timer relay
Input contact
Setting value
ON Delay timer
Input
condition
t
t =setting value
OFF Delay timer
t
Accumulation
timer
t
1
t
2
t = t1 + t2
Monostable timer
t
Retriggerable timer
t
Timer
output
Input
condition
Timer
output
Timer
output
Timer
output
Timer
output
Input
condition
Input
condition
Input
condition
t =setting value
t =setting value
t =setting value
t =setting value