Mitsubishi MELSEC Q Series, Руководство по программированию

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7.9 Display Instructions
7.9.3 Resetting error display or annunciator
7-141
7
APPLI
C
A
T
IO
N
INSTRUCTIONS
LEDR
LEDR
(2) Operations when annunciators (F) are ON.
(a) For CPU module with no LED display on the front
The following operations are performed when the LEDR instruction is executed.
1) "USER" LED flickers, and is turned OFF.
2) The annunciators (F) stored in SD62 and SD64 are reset, and the F numbers of
SD65 to SD79 are moved up.
3) The data newly stored in SD64 are transmitted to SD62.
4) The value in SD63 is decremented by 1. However, if SD63 is 0, it remains 0.
(b) For CPU module with the LED display on the front
The following operations are performed when the LEDR instruction is executed.
1) The F number displayed on the front of the CPU module is reset.
2) "USER" LED flickers, and is turned off.
3) The annunciators (F) stored in SD62 and SD64 are reset, and the F numbers of
SD65 to SD79 are compressed forwards.
4) The data newly stored in SD64 are transmitted to SD62.
5) The value in SD63 is decremented by 1. However, if SD63 is 0, it remains 0.
6) The F number stored in SD62 is displayed on the LED display. However, if the value
of SD63 is 0, nothing is displayed.
Before execution
200
15
200
99
5
255
83
0
S D 62
S D 63
S D 6 4
S D 65
S D 66
S D 67
S D 78
S D 79
A fter execution
99
1 4
99
5
255
83
0
0
S D 62
S D 63
S D 6 4
S D 65
S D 66
S D 77
S D 78
S D 79
F num b er storage area
Num b er of registere d F num b ers
Decrements 1 .
Decrements 1.
Before execut i on
200
1
200
0
0
0
0
0
S D 62
S D 63
S D 64
S D 65
S D 66
S D 67
S D 78
S D 79
A fter execut i on
0
0
0
0
0
0
0
0
S D 62
S D 63
S D 64
S D 65
S D 66
S D 77
S D 78
S D 79
N um b er of reg i stere d F num b ers
F num b er i s not di sp l a y e d on the
LE D di sp l a y un i t s i nce S D 63 i s 0.