Omron NT31 Operation Manuals page 483

Buzzer, Backlight, and Display Control
[Operation]
15 14 13 12 11 10 9
0
Reference: If more than one bit among the bits indicated above is "1" (ON) at the same time,
Stopping the Buzzer by Pressing a Touch Switch Which Has the "Buzzer Stop" Function
[Setting]
472
The bit for controlling the PT status (PT status control bit) is provided at the fourth
word (n + 3 words) from the beginning of the PT status control area.
8 7 6 5 4 3 2
To stop the buzzer during operation of the NT31/NT31C, operate the PT status
control area as indicated below.
(1) Set "0" (OFF) for all of the following bits in the fourth word (n + 3 words) from
the beginning of the PT status control area.
- Continuous sound:
- Short intermittent sound: Bit 12
- Long intermittent sound:
only one type of buzzer sounds according to the priority: continuous buzzer > short
intermittent sound > long intermittent sound. To stop the buzzer when it is sound-
ing, set "0" (0) for all bits indicated above; setting "0" (OFF) only for the bit corre-
sponding to the type of buzzer sound may not stop the buzzer.
Using this method, an operator can stop the buzzer by the operation at the
NT31/NT31C. Usually, a "buzzer stop" touch switch is registered to a screen for
which the buzzer attribute is set to sound the buzzer.
There is an "input key – control" touch switch that has the "buzzer stop" ( ) func-
tion.
Register this touch switch on the screen when creating it using the Support Tool.
1 0 Bit
0
Controlled Item
Screen display
15
Processing priority registration (for NT link (1:N))
14
13 Continuous buzzer
12 Intermittent buzzer (short)
11 Display history initialization
10 Not used
9 Intermittent buzzer (long)
Backlight mode
8
Screen printing
7
6 PT window opening
5 Numeral/character string input
4 PT screen switching
3 Memory table copy execution
2 Memory table copy type
1 Alarm history initialization
Not used
0
Bit 13
Bit 9
Section 8-2
1 (ON) 0 (OFF)
Performed Not performed
Registered Canceled
Sounded Stopped
Sounded Stopped
Performed Not performed
Always "0"
Sounded Stopped
Lit Flashing
Performed Not performed
Disabled Enabled
Disabled Enabled
Disabled Enabled
Performed Not performed
Numeral Character string
Performed Not performed
Always "0"