Back Light Off Function; System Information - Back Light Off Function - Mitsubishi Electric MELSEQ FX3S Series User Manual

FX Series Programmable Controllers
3S
User's Manual - Hardware Edition

16.10 Back light off function

Use this function to turn OFF the backlight after the specified time.
The initial value is "10 minutes". The backlight will turn OFF 10 minutes later if the backlight off time is not
set.
Once the backlight turns OFF, it will turn ON again when any button is pressed.
This button will act as a trigger, not an effective button.
The contents displayed before the backlight OFF will be shown.

16.10.1 System Information - Back light off function

1. System signal 1
Special data register
D8158=K
Operation of [D
Back light off time can be set in the following range.
0
1 to 240
240 or more
Negative value : Forced OFF
Caution
Setting a Negative value in [D
forced ON.
2. System signal 2
Special data register
D8159=K
3. Program example
In this program example, the backlight forced turning ON/OFF is set.
System information is assigned from D130 to D134 and from M400 to M414.
M8002
Input for forced
turning ON
174
System Information
D +2
+2]
: 10 minutes
: 1 to 240 minutes
: 240 minutes
+2] will force the backlight OFF, setting [M
System Information
M +2
FNC 12
K130 D8158
MOV
FNC 12
K400 D8159
MOV
FNC 12
K-1 D132
MOV
M402
Back light off time (minute)
Disable automatic backlight OFF (Forced ON)
ON: Disable OFF: Enable
System information (system No.1)
is set at D130 to D134.
System information (system No.2)
is set at M400 to M414.
Back light forced OFF
Back light forced ON
16 Display Module (FX3S-5DM)
16.10 Back light off function
Description
+2] the backlight can be
Description