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(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. (
(5)(b) in this section)
If the LEDR instruction is executed while the annunciator is on and at the same time the operation continuation error that has
higher priority ( Section 6.21.1) than the annunciator has occurred, the LEDR instruction clears the higher 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.
Figure 9.14 Processing after annunciator OFF (when the LEDR instruction executed)
Figure 9.15 Processing after annunciator OFF (when the REST F instruction is executed)
0
0
0
0
0
0
0
SD62
SD63
SD64
SD65
SD66
SD67
SD79
50
1
50
0
0
0
0
50
2
50
25
0
0
0
50
3
50
25
1023
0
0
SET F50 SET F25 SET F1023
25
2
25
1023
0
0
0
LEDR
0
0
0
0
0
0
0
SD62
SD63
SD64
SD65
SD66
SD67
SD79
50
1
50
0
0
0
0
50
2
50
25
0
0
0
50
3
50
25
1023
0
0
SET F50 SET F25 SET F1023
50
2
50
1023
0
0
0
RST F25