Long Timer - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

Long timer

OUT_LT, OUT_LST
• OUT_LT: Low-speed long timer instruction
• OUT_LST: Low-speed long retentive timer instruction
These instructions start time measurement when the operation result up to the OUT instruction is on. When time is up, the
normally open contact turns on (continuity state) and the normally closed contact turns off (non-continuity state).
ST
ENO:=OUT_T(EN,Coil,Value);
■Execution condition
Instruction
OUT_LT
OUT_LST
Setting data
■Description, range, data type
Operand Description
Coil Long timer type label
Value Value set for the long timer
EN Execution condition
ENO Execution result
■Applicable devices/labels
Operand Bit
SB
Coil

Value

*1 Only K (decimal constant) can be used.
Processing details
• These instructions start time measurement, triggered by the coil specified by Coil, when the operation result up to the OUT
instruction is on. When time is up (current value ≥ set value), the normally open contact turns on (continuity state) and the
normally closed contact turns off (non-continuity state).
• When the operation result up to the OUT instruction turns off, the contact responds as shown below.
Type Timer coil
Long timer Off
Long retentive timer Off
• To clear the current value of the long retentive timer and turn off the contact after time is up, use the RST instruction.
• When the timer set value is 0, the time will be up at execution of the OUT instruction.
• The following operations are performed at execution of the OUT instruction.
• The coil used as a trigger of the OUT_LT or OUT_LST instruction turns on or off.
• The contact used as a trigger of the OUT_LT or OUT_LST instruction turns on or off.
• The current value of the OUT_LT or OUT_LST instruction is changed.
• If the same OUT_LT or OUT_LST instruction is executed two times or more in a single scan, the current value is updated
by the number of times the instruction is executed.
5 SEQUENCE INSTRUCTIONS
52
5.1 Output Instructions
Execution condition
Every scan
RX, RY, LB


Current value Before time is up
Normally open
contact
0 Non-continuity
Current value retained Non-continuity
Range

0 to 4294967295


Word
SW G, RWw, RWr, LW
 
 
Normally closed
contact
Continuity
Continuity
Data type
ANY_BOOL
ANY32
BOOL
BOOL
Constant
K, H

*1

After time is up
Normally open Normally closed
contact contact
Non-continuity Continuity
Continuity Non-continuity