Mitsubishi MELSEC Q Series Programming Manual page 165

(2) The contact responds as follows when the operation result up to the OUT instruction is a
change from ON to OFF:
Type of Timer
Low speed timer
High speed timer
Low speed
retentive timer
High speed
retentive timer
(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
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
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
• OUT T
• OUT T
In cases where a JMP instruction or the like is used to jump to an OUT T
the OUT T
conducted.
Also, if the same OUT T
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
2. For information on timer counting methods, User's Manual
3. The number of basic steps of the OUT C
Operation Error
(1) There are no operation errors associated with the OUT T
Present Value of
Timer Coil
Timer
OFF 0
Maintains the
OFF
present value
1) cannot be set as the setting value for the timer.
coil turned ON or OFF
contact turned ON or OFF
present value updated
instruction is ON, no present value update or contact ON/OFF operation is
instruction is conducted two or more times during the same scan,
Time limit of the timer is set in the PLC system of the PLC parameter dialog
box.
High Performance model QCPU,
Process CPU, Redundant CPU
Type of Timer
Setting Range
Low speed timer
1 ms to 1000 ms
Low speed
(Default: 100 ms)
retentive timer
High speed timer
0.1 ms to 100.0 ms
High speed
(Default: 10.0 ms)
retentive timer
(Functions Explanation, Program Fundamentals) for the CPU module used.
Prior to Time Up
A Contact B Contact
Non-continuity Continuity
Non-continuity Continuity
Basic Model QCPU,
Setting
Unit
1 ms
0.01 ms to 100.0 ms
0.1 ms
instruction is 4.
instruction.
OUT T,OUTH T
After Time Up
A Contact B Contact
Non-continuity Continuity
Continuity Non-continuity
*3
\ or U \ ), whether
instruction while
Universal model QCPU,
LCPU
Setting
Setting Range
Unit
1 ms to 1000 ms
1 ms
(Default: 100 ms)
0.01 ms
(Default: 10.0 ms)
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