Omron NT21 Series, Reference Manual

Page: 296 / 466

3-2 Section Buzzer, Backlight, and Display Control
287
Redisplaying the Screen by the Operation at the PT Status Control Area
This method allows the operator to redisplay the screen at any required time.
PT
Redisplaying the screen
←
Control data
PC
PT status control area
Screen switch setting
Copy memory
table setting
PT status control setting
Reserved for system use
The PT status control area must be allocated to a word in the host, accordingly,
no special settings are required for the control of buzzer.
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.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Bit
0
0
Controlled Item
Screen display
Processing priority registration (for NT link (1:N))
Continuous buzzer
Intermittent buzzer (short)
Display history initialization
Not used
Intermittent buzzer (long)
Backlight mode
Screen printing
PT window opening
Numeral/character string input
PT screen switching
Memory table copy execution
Memory table copy type
Alarm history initialization
Not used
1 (ON)
Performed
Registered
Sounded
Sounded
Performed
Sounded
Lit
Performed
Disabled
Disabled
Disabled
Performed
Numeral
Performed
0 (OFF)
Not performed
Canceled
Stopped
Stopped
Not performed
Stopped
Flashing
Not performed
Enabled
Enabled
Enabled
Not performed
Character string
Not performed
Always 0
Always 0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bits 2 and 3 are not used when the PT is in NT30/620
compatible mode.
To redisplay the screen during the operation of the PT, operate the PT status
control area as indicated below.
Set 1 (ON) for bit 15 in the fourth word (n + 3 words) from the beginning of the PT
status control area.
Redisplaying the Screen by Pressing the Touch Panel
Using this method, an operator can redisplay the screen easily by operation at
the PT.
Screen is redisplayed
Setting
Operation
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