HP 262SA - Data Transfer Event Sequence

Block Data Transfer
• When not in Format mode, you can insert a non-displaying terminator at the current cursor
position by issuing an ~~Ec _" sequence. This escape sequence can be issued either through
the keyboard or from a program executing in a host computer.
•
In Format mode, non-displaying terminators may be inserted only into unprotected fields.
The significant factors involved in a data transfer are as follows:
•
Data block start point.
•
Data block end point.
• Type
of data transferred.
• End character(s).
•
Cursor location after the transfer is completed.
These factors
are defined by the current combination of terminal modes, which are selected
using the function keys and by the entries in the Terminal Configuration menu. The applicable
modes
are illustrated in figure 9-1.
Character
~
Format Non-Format
~
Modes
I
I
Line
[
I
Block
I
I
Page
I
Line
Modify
Modify
All
Format
Non-Format
~
Format
Non-Format
~
Autoterm Non- Autoterm Non- Autoterm Non- Autoterm Non-
Autoterm Autoterm Autoterm Autoterm
Figure 9-1. Modes Affecting ENTER Key Operation
Data Transfer Event Sequence
START POINT SELECTION. The start pointof the data block is determined by the terminal
mode combination and the current cursor position. In many situations, the cursor is
repositioned before the transfer is started; in others, the current cursor position becomes the
start point.
9-7