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OUT T,OUTH T
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5.3 Output Instructions
5.3.2 Timers (OUT T,OUTH T)
(2) The contact responds as follows when the operation result up to the OUT instruction is a
change from ON to OFF:
(3) To clear the present value of a retentive timer and turn the contact OFF after time up, use the
RST instruction.
(4) A negative number ( 32768 to 1) cannot be set as the setting value for the timer.
*3
If the setting value is 0, the timer will time out when the time the OUT instruction is executed.
*3: When specifying a setting value for the timer using a word device (D, W, R, ZR, J \ or U \ ), whether
the value is in the setting range is not checked. Check the value in the user program so that a negative
number is not set.
(5) The following processing is conducted when the OUT instruction is executed:
• OUT T coil turned ON or OFF
• OUT T contact turned ON or OFF
• OUT T present value updated
In cases where a JMP instruction or the like is used to jump to an OUT T instruction while
the OUT T instruction is ON, no present value update or contact ON/OFF operation is
conducted.
Also, if the same OUT T instruction is conducted two or more times during the same scan,
the present value of the number of repetitions executed will be updated.
(6) Indexing for timer coils or contacts can be conducted only by Z0 or Z1.
Timer setting value has no limitation for indexing.
Remark
1. Timer's time limit
Time limit of the timer is set in the PLC system of the PLC parameter dialog
box.
2. For information on timer counting methods, User's Manual
(Functions Explanation, Program Fundamentals) for the CPU module used.
3. The number of basic steps of the OUT C instruction is 4.
Operation Error
(1) There are no operation errors associated with the OUT T instruction.
Type of Timer Timer Coil
Present Value of
Timer
Prior to Time Up After Time Up
A Contact B Contact A Contact B Contact
Low speed timer
OFF 0 Non-continuity Continuity Non-continuity Continuity
High speed timer
Low speed
retentive timer
OFF
Maintains the
present value
Non-continuity Continuity Continuity Non-continuity
High speed
retentive timer
Type of Timer
QCPU
Setting Range Setting Unit
Low speed timer
Low speed retentive timer
1 ms to 1000 ms
(Default: 100 ms)
1 ms
High speed timer
High speed retentive timer
0.1 ms to 100.0 ms
(Default: 10.0 ms)
0.1 ms