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Chapter 6 Instruction Details
XBC E-Type Main Unit
6-69
Ver. 1
6.17.3 TOFF
Instruction
Area Available
Step
Flag
P M K F L T C S Z D.x R.x
Co
nst.
U N D R
Error
(F110)
Zero
(F111)
Carry
(F112)
TOFF
T
-
-
-
-
- O -
-
-
-
-
-
-
-
-
-
2/3
-
-
-
t
O O O -
-
-
-
-
-
-
- O O - O O
Operand
Description
Data Type
T
Timer Contact to use
WORD
t
Stands for Timer’s setting value. Integer or word device available
Setting Time = Basic cycle (100ms, 10ms, 1ms) x Setting value( t)
WORD
1) TOFF (Off Timer)
(1) When input condition is On, present value will be set value, and Output will be On.
(2) If input condition is Off, Timer Present value decreases from setting value and the moment present value is
“0”, output will be Off.
(3) If Reset Instruction is met, Timer Output will be Off, and present value “0”.
2) Program Example
(1) If input P00020 contact is On, T0000 contact is On at the same time, and Output P00065 is On.
(2) After input P00020 is Off, Timer starts to decrease. If present value is “0”, Timer Contact will be Off.
(3) If P00022 is On, present value will be “0”.
[Ladder Program]
TOFF T0000 5
P00020
T0000
( )
P00065
P00022
( )
T0000
R
[Time Chart]
TOF
F
Input Condition Contact
TOF
F
T
t
P00020
P00065
t = 5
←
→
t
(Dcreased)
Input signal
Timer contact
point output
Summary of Contents for XBC-DN10E
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