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Display and Control of Windows
Section 8-4
8-4-3 Disabling/Enabling the Opening of a Window
Opening of a window by operation at the NT31/NT31C can be enabled/disabled by
using the method indicated below.
- Controlling the window by operation at the PT status control area
Controlling the Window by Operation at the PT Status Control Area
This method allows the opening of a window by operation at the NT31/NT31C to
be disabled. (Even if the opening of a window is disabled, it is possible to close the
window by operation at the NT31/NT31C, or to move a window by a touch switch
operation which has “window move” function. Also, opening/closing/moving a win-
dow by operation of the window control area is always possible.)
[Setting]
The PT status control area must be allocated to a word in the host, accordingly, no
special settings are required for the control of a window.
[Operation]
The bit for controlling the PT status (PT status control bit) is provided at the fourth
word (word n + 3) 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
To disable the opening of a window by operation at the NT31/NT31C during the
operation of the NT31/NT31C, operate the PT status control area as indicated be-
low.
(1) Set “1” (ON) for bit 6 in the fourth word (word n + 3) from the beginning of the
PT status control area.
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