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4-3
Section
Commands/Responses
382
digits)
0 to FFFF
H
Area type of the changed direct area
Contents to be changed
PT control area
Screen number
PT notify area
PT status notify bit
Window control area
Window number
Window X coordinate
Window Y coordinate
It is possible to omit initial zeroes so that there are less than 4
digits.
Individual words of data are delimited by commas.
s
1
, s
2
:
Check sum (2 hexadecimal digits)
This is always added.
Response
None
Notifies to the host the fact that there has been a change in the status of the PT
and the contents of the direct areas (PT control area, PT notify area and window
control area) have changed.
However, in the following cases, a dedicated command is issued and therefore
the direct area changing notify command is not issued.
When numeric input has occurred:
Numerical input notify com-
mand
When character string input has occurred: Character string input notify
command
For details of direct area, refer to
2-2 Areas for Control/Notification on page
46.
Example
Example 1. Notification of Change in The PT Control Area
Notification of change in the PT control area is issued when screen is switched
by operations at the PT, such as touch switch operation. In the example below, it
is ascertained that the screen has been switched to screen number 21 (BCD) by
a switch screen touch switch.
Command
0
1B
50
[ESC]
P
30
30
0
4D
M
1
31
30
0
0
30
1
31
0D
30
0
1
31
35
5
4
34
[CR]
First word number of PT control area
: 100CH
Number of changed words in PT control area
: 1CH
Screen number (hexadecimal)
: 15H (screen No.21 in BCD)
Check sum
: 40H
Example 2. Notification of Change in The PT Notify Area
Notification of change in the PT notify area is issued when the status of the PT is
changed (such as screen printing). In the example below, it is ascertained that
the printing is being executed currently from the fact that the bit 7 (screen print-
ing) in the PT notify bit is ON (1).
Format
Function
electronic components distributor
Summary of Contents for NT21 Series
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