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6 BASIC INSTRUCTIONS
(2) The timer coil designated by
instruction, and begins the measurement of the present value.
• The timer coil measures to the point where the value reaches the set value designated by n,
then enters a time up state and goes OFF.
• If the command for the SRMR instruction goes OFF before the timer coil reaches the time up
state, it will remain ON.
Timer measurement is suspended at this time.
When the STRM instruction command goes ON once again, the present value will be
cleared to 0 and measurement will begin once again.
(3) The timer contact goes ON at the leading edge of the command for the STMR instruction, and
after the trailing edge is reached, the timer coil goes OFF at the trailing edge of the STMR
instruction command.
The timer contact is used by the CPU module system, and cannot be used by the user.
Command for
STMR instruction
(Coil)
S
(Contact)
S
D
+0
D
+1
+2
D
D
+3
(4) Measurement of the present value of the timer designated by the STMR instruction is
conducted during the execution of the STMR instruction.
If the STMR instruction is jumped with the JMP or similar instruction, it will not be possible to
get accurate measurement.
(5) Measurement unit for the timer designated by
(6) A value between 1 to 32767 can be set for n.
(7) The timer designated by
If the STMR instruction and the OUT instruction use the same timer number, accurate
operation will not be conducted.
[Operation Errors]
(1) There are no errors associated with the STMR instruction.
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goes ON at the leading edge of the command for the STMR
S
Set value
Set value
designated
designated
by n1
by n1
cannot be used by the OUT instruction.
S
MELSEC-Q/QnA
OFF delay timer
One shot timer
after OFF
One shot timer
after ON
ON delay timer
Set value
Set value
designated
designated
by n1
by n1
is identical to the low speed timer.
D
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