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

5.3.7

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

SET F, RST F
SET
RST
Function
SET
(1) The annunciator designated by
(2) The following responses occur when an annunciator (F) is turned ON.
• The "USER" LED goes ON.
• The annunciator numbers which are ON (F numbers) are stored in special registers
(SD64 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) The annunciator designated by
ON.
(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
Command
Command
SET : Number of the annunciator to be set (F number) (bits)
D
RST : Number of the annunciator to be reset (F number) (bits)
D
Internal Devices
Set
Data
Bit Word
D
(Only F)
is turned ON when the execution command is turned ON.
D
is turned OFF when the execution command is turned
D
1. Refer to the manual below for details of annunciators.
• QSCPU User's Manual (Function Explanation, Program Fundamentals)
2. The number of basic steps for the SET F
5.3.7 Setting and resetting the annunciators (SET F, RST F)
SET
RST
Constants Others
––
and RST F
5.3 Output Instruction
SET F, RST F
D
D
instructions is 2.
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