Setting And Resetting The Annunciators (Set F, Rst F) - Mitsubishi MELSEC QCPU Programming Manual

5 SEQUENCE INSTRUCTIONS

5.3.7 Setting and resetting the annunciators (SET F, RST F)

Internal Devices
Set
(System, User)
Data
Bit Word
D
(Only F)
[Instruction Symbol] [Execution Condition]
SET
RST
[Set Data]
Instruction Name
SET
RST
[Functions]
SET
(1) Annunciator designated by
(2) The following responses occur when the annunciator (F) goes ON:
• The annunciator number is displayed at the LED display device at the front of the CPU
module, or the "USER" LED goes ON.
• The numbers (F numbers) of the annunciators turned ON are stored successively at the
special registers (SD63 to SD79).
• The value of SD63 is incremented by 1.
(3) If the value of SD63 is 16 (which happens when 16 annunciators are already ON), even if a
new annunciator is turned ON, its number will not be stored at SD64 to SD79.
RST
(1) Annunciators designated by
(2) The annunciator numbers (F numbers) of annunciators that have gone OFF are deleted from
the special registers (SD64 to SD79), and the value of SD63 is decremented by 1.
REMARK
(1) Refer to the User's Manual (Functions Explanation, Programming Fundamentals) of the
used CPU module or QnACPU Programming Manual (Fundamentals), Section 4.2.5, for
details of annunciators.
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Usable Devices
MELSECNET/10(H)
File Direct J \
Register
Bit Word
SET input
RST input
Set Data
D Number of annunciator to be set (F number)
D Number of annunciator to be reset (F number)
goes ON when SET input goes ON.
D
are turned OFF when RST input goes ON.
D
QCPU
PLC CPU
Process CPU
Basic
High Performance
Special
Index
Function
Register
Module
Zn
U \G
SET
RST
Meaning
MELSEC-Q/QnA
QnA Q4AR
Other
Constant
K, H
U
D
D
Data Type
Bit
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