Mitsubishi Electric MELSEC-Q00U(J)CPU User Manual page 356

(b) Processing after annunciator off
1.
Data stored in the special register (SD62 to SD79) after execution of the LEDR instruction
• The annunciator number in SD64 is deleted, and the other annunciator numbers in the register addressed
SD65 and after are shifted accordingly.
• The annunciator number in SD64 is stored into SD62.
• SD63 value is decremented by "1".
• If the SD63 value is changed to "0", SM62 is turned off.
2.
Data stored in the special register (SD62 to SD79) when the annunciator is turned off with the RST
F or BKRST instruction
• The annunciator number specified with the RST or BKRST instruction is deleted, and the other
annunciator numbers in the register addressed SD65 and after are shifted accordingly.
• If the existing annunciator number in SD64 is turned off, a new annunciator number stored in SD64 will be
stored in SD62.
• SD63 value is decremented by "1".
• If the SD63 value is changed to "0", SM62 is turned off.
3.
LED indication
When all of the annunciator numbers in SD64 to SD79 turn off, the LED that was turned on by turn-on of
the annunciator will turn off. (
If the LEDR instruction is executed while the annunciator is on and at the same time the operation continuation error that has
higher priority (
priority error. Because of this, the annunciator is not turned off by execution of the LEDR instruction.
To turn off the annunciator with the LEDR instruction, remove the error whose priority is higher than that of the annunciator.
354
SET F50 SET F25 SET F1023
SD62 0 50
0 1
SD63
SD64 0 50
SD65
0 0
SD66 0 0
SD67 0 0
SD79 0 0
SET F50 SET F25 SET F1023
SD62 0 50
0
SD63 1
0
SD64 50
0
SD65 0
0
SD66 0
0
SD67 0
SD79 0 0
Page 352, Section 4.2.5 (3) (b))
Page 222, Section 3.20.2) than the annunciator has occurred, the LEDR instruction clears the higher
LEDR
50 50 25
2 3 2
50 50 25
1023
25 25
0 1023 0
0 0 0
0 0 0
RST F25
50 50 50
2 3 2
50 50 50
25 25 1023
0 1023 0
0 0 0
0 0 0