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HP 2624 User Manual

HP 2624
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Keyboard Control
After a
hard
reset
or
turning
off
the
power,
the
terminal
reverts
to
the
mode specified by
the
remotellocal designator
in
non-volatile memory.
Character/Block Modes
When
the
terminal
is
connected on-line to a remote
host
computer,
it
operates
in
either
of
the
following
data
transmission
modes:
•
Character
Mode.
In
this
mode,
data
is
transmitted
a
character
at
a
time
as
it
is
entered
through
the
keyboard.
ASCII
control
codes
(such
as
<CR)
and
<IF)),
if
generated
using
keystrokes,
are
transmitted.
•
Block
Mode.
In
this
mode,
data
is NOT
transmitted
at
the
time
it
is
entered
through
the
keyboard. Instead, you
transmit.
an
entire
block of
data
by first
typing
the
data
(after
initially
typing
the
data
you can move
the
cursor
around
and
edit
the
data
as
desired)
and
then
pressing
the
II
key.
When
the
terminal
is
in
block mode, ASCII control codes
(such
as
<
CR)
and
< IF> )
are
acted upon locally
but
NOT
transmitted
with
the
data
block.
From
the
keyboard, you enable
and
disable block mode
using
the
"BLOCK
MODE"
(
..
) key.
From a
program
executing
in
a
host
computer, you enable
and
disable block mode
using
the
following escape se-
quences:
ENABLE:
<ESC)t.k1B
DISABLE:
<ESC)t.kOB
A characterlblock mode designator is
maintained
in
non-
volatile memory. When you change modes
using
the
"BLOCK
MODE"
key, you also
alter
that
mode designator
in
non-
volatile memory.
When
you change modes
using
the
escape
sequences, however,
the
designator is NOT altered.
After a
hard
reset
or
turning
off
the
power,
the
terminal
reverts
to
the
mode specified by
the
characterlblock desig-
nator
in
non-volatile memory.
The relationship between block, line, page,
and
format
modes is described
under
"The
ENTER
Key"
later
in
this
section.
Format Mode
The
terminal
includes a format mode
in
which elaborate,
custom-designed forms
containing
protected
data,
un-
protected fields,
and
transmit-only
fields
can
be displayed
on
the
screen
and
used for
data
entry. The unprotected
and
transmit-only
fields
can
be
defined with a
variety
of at-
tributes
including
data
checking
and
automatic
field
editing.
When format mode is enabled,
the
terminal
operator
may
only
enter
data
into unprotected or
transmit-only
fielgs.
If
the
operator positions
the
cursor
in
a protected
area
and
then
attempts
to
type
data,
the
cursor automatically moves
3-2
to
the
start
of
the
next
subsequent
unprotected field
and
then
the
terminal
accepts
the
data.
The designing of forms
and
the
use of
format
mode
are
described
in
section V of
this
manual.
From
the
keyboard, you enable
and
disable format mode
using
the
"FORMAT
MODE"
key
in
the
"def
i ne f
teld5"set
of
function keys.
From
a
program
executing
in
a
host
computer, you enable
and
disable format mode
using
the
"FORMAT
MODE"
key.
ENABLE:
<ESC)W
DISABLE:
<ESC)X
Once format mode is enabled,
it
remains
enabled
until
explicitly disabled,
until
a
hard
reset
is
performed, or
until
the
power
is
turned
off.
Line Modify Mode
When
the
terminal
is
in
remote mode
and
character
mode
and
you
are
communicating
interactively
with
a host com-
puter, you
may
sometimes
enter
an
erroneous command
string
to which
the
computer
responds
with
an
error
message.
If
the
command
string
is a
lengthy
one
and
the
error
consists of only a few characters,
it
is
a nuisance to
have
to retype
the
entire
string.
In
such
a case you
may
instead
enable
line
modify mode
(which
temporarily
switches
the
terminal
to a special form of block mode).
You
may
then
move
the
cursor to
the
erroneous line on
the
display
and
correct
the
command
string.
When
the
string
is
edited to your satisfaction, you
retransmit
the
line to
the
host computer by pressing
either
the
_ key or
the
II
key.
Note
that
while
line
modify mode
results
in
a block
transmission,
it
is completely
independent
of
the
block
mode function described
earlier
in
this
section (you
do
NOT
have
to
first
enable block mode).
In
fact,
line
modify mode
is
a
feature
that
was specifically designed for
use
when
the
terminal
is
operating
in
character
mode.
From
the
keyboard, you enable
line
modify mode
using
the
"L1
tolE
MODI
FY"
key. Line modify mode
is
automatically
disabled when you press
either
_
or
II.
If
you change
your
mind
and
wish to disable
line
modify mode before
retransmitting
the
command
string,
press
the
"L1
tolE
MODI
FY"
key
again
(the
asterisk
disappears
from
the
key
label
and
the
terminal
is back
in
normal
character
mode).
Note
that
for most lines on
the
screen,
the
terminal
remem-
bers which
character
was
the
first
(leftmost) one
that
you
entered
through
the
keyboard.
This
means
that
when you
retransmit
a line
in
modify mode, only
the
keyboard
entry
portion
of
the
line (the
entire
edited
command string) is
retransmitted;
any
prompt
characters
preceeding
the
com-
mand
string
are
ignored by
the
terminal.
For
more detailed
information
about
this
feature,
refer
to
the
discussion of
the
Start
Col field of
the
terminal
configuration
menu
in
Section II, Configuring
the
Terminal, of
this
manual.
(
(
(

Table of Contents

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HP 2624 Specifications

General IconGeneral
BrandHP
Model2624
CategoryTouch terminals
LanguageEnglish

Summary

Introduction to the HP 2624A

The Keyboard

Describes the HP 2624A keyboard layout, divided into five major groups of keys.

Function Keys

Explains the eight function keys and their dynamic behavior, including mode selection.

Display Screen

Details the HP 2624A display screen structure, resolution, and character cell.

Display Memory

Describes the HP 2624A's display memory configuration and storage.

Configuring the Terminal

Explains how to configure the terminal using menus and programmatic sequences.

Integral Printer

Details the optional integral printer's capabilities and usage.

Data Communications

Discusses the terminal's data communication ports and modes.

Self-Test

Covers the various self-test features for verifying terminal operation.

Configuring the Terminal

Introduction to Terminal Configuration

Overview of terminal configuration through menus and escape sequences.

Configuration Function Keys

Explains the function keys used to access configuration menus.

Configuration Menus

Summarizes the available configuration menus for the HP 2624A.

Terminal Configuration Menu

Details the terminal configuration menu and its fields.

Programmatic Configuration

Describes how to change terminal parameters using escape sequences.

Lock and Unlock Configuration Menus

Explains how to lock and unlock configuration menus for security.

Keyboard Control

Introduction to Keyboard Control

Overview of the HP 2624A keyboard and its functional groups.

Selecting Modes

Explains how to select terminal operating modes using function keys.

Character and Block Modes

Describes data transmission modes: character mode and block mode.

Format Mode

Details the format mode for creating and using data entry forms.

Line Modify Mode

Explains the line modify mode for editing command strings.

Modify All Mode

Describes the modify all mode for editing data on the screen.

Auto Line Feed Mode

Explains the auto line feed mode for appending line feeds to carriage returns.

Memory Lock Mode

Details the memory lock mode for overflow protection and display lock.

Display Functions Mode

Describes how display functions mode affects ASCII control code handling.

Caps Mode

Explains the caps mode for controlling alphabetic key output.

Caps Lock Mode

Details the caps lock mode for generating uppercase ASCII codes.

User-Definable Keys

Explains how to define custom functions for the eight function keys.

Defining Keys Programmatically

Describes how to define user keys remotely using escape sequences.

Controlling Function Key Labels Programmatically

Explains programmatic control of function key labels on the display.

The Enter Key

Details the operation of the Enter key for data transfer and block operations.

Send Display Command

Explains the ESC>d command for triggering block transfers from display memory.

Enable/Disable Keyboard

Describes how to enable and disable the terminal's keyboard via escape sequences.

Soft Reset

Explains the soft reset procedure and its effects on terminal operation.

Hard Reset

Details the hard reset procedure and its effects on terminal configuration.

Break Function

Describes the break function for interrupting computer operations.

Bell Function

Explains the terminal's bell speaker and its response to control codes.

Wait Function

Describes the wait function for pausing terminal operations.

Modem Disconnect

Explains how to disconnect the modem using an escape sequence.

Display Control

Introduction to Display Control

Overview of the HP 2624A display screen and memory operations.

Cursor Control

Explains how to alter the cursor position using keys or escape sequences.

Move Cursor Up

Details how to move the cursor one row up in the current column.

Move Cursor Down

Details how to move the cursor one row down in the current column.

Move Cursor Right

Details how to move the cursor one column right in the current row.

Move Cursor Left

Details how to move the cursor one column left in the current row.

Roll Text Up

Explains how to scroll display memory up one row.

Roll Text Down

Explains how to scroll display memory down one row.

Next and Previous Page

Describes how to access subsequent or preceding pages of display data.

Screen Relative Addressing

Explains cursor positioning relative to the current screen position.

Absolute Addressing

Details cursor positioning using absolute row and column coordinates.

Cursor Relative Addressing

Explains cursor positioning relative to the current cursor position.

Edit Operations

Covers various screen edit functions like insert/delete line and character.

Clear Display

Explains how to clear display memory from the cursor position.

Clear Line

Details how to clear the current line from the cursor position.

Setting and Clearing Margins

Describes how to define and reset left and right margins.

Setting and Clearing Tabs

Explains how to define and clear tab stops for cursor positioning.

Display Enhancements

Details standard display enhancements like inverse video and blinking.

Designing and Using Forms

Introduction to Forms Design

Overview of creating data entry forms with line types and annotations.

Drawing Forms

Explains the process of creating the linear structure of a form.

Defining Fields

Covers defining protected, unprotected, and transmit-only fields.

Transmit-Only Fields

Details the characteristics and behavior of transmit-only fields.

Field Attributes

Explains implicit and explicit attributes for data entry fields.

Defining Fields From the Keyboard

Describes how to specify field types and attributes using a menu.

Defining Fields Programmatically

Explains how to define fields remotely using escape sequences.

Transmit Modified Fields

Details how the Modified Data Tag affects data transmission.

Transferring Form Structures

Explains how to transfer form structures from screen to host computer.

Device Control

Introduction to Device Control

Overview of controlling printers and data transfers.

Display to Printer Data Transfers

Explains how to print data from display memory to printers.

Copy Line

Describes how to copy the current line to a printer.

Copy Page

Details how to copy a page of data to a printer.

Copy All

Explains how to copy all lines from cursor to end of display memory.

Copy All of Display Memory

Describes how to copy the entire display memory content to a printer.

Skip Line

Explains how to advance the paper by one line.

Computer to Terminal Data Transfers

Details how to transfer data from a host computer to printers.

Selecting Printer Modes

Explains how to select printer modes like expanded or compressed characters.

Report Format

Describes the report format for printing 66-line pages.

Metric Format

Details the metric format for printing 70-line pages.

Data Logging

Explains data logging features for capturing data to printers.

Printer Self-Test

Covers the printer self-test procedure to verify functionality.

Data Communications

Introduction to Data Communications

Overview of connecting terminals to computers for data exchange.

Selecting Equipment and Cables

Guides on selecting appropriate equipment and cabling for data links.

Hardwired Connections

Details on establishing point-to-point hardwired connections.

Modem Connections

Explains factors for choosing modems for point-to-point connections.

Installing Point-to-Point Configuration

Provides instructions for installing a point-to-point data link.

Port #2 Cabling

Details cabling requirements for the terminal's second data port.

Configuring the Terminal for Data Comms

Explains how to configure data communications settings on the terminal.

Point-to-Point Programming Information

Provides programming reference for asynchronous point-to-point communication.

Start and Stop Bits

Explains the role of start and stop bits in asynchronous data transmission.

Data Bits (Character Length)

Details the number of data bits per character and 7-bit vs 8-bit operation.

Parity Checking

Covers vertical redundancy check (VRC) for character-based error checking.

Receive Buffer

Describes the terminal's receive buffer and its role in data reception.

Receive Errors

Explains types of receive errors detected by the terminal.

Local/Remote Modes

Describes the terminal's local and remote modes for data communications.

Full Duplex Operation

Details simultaneous transmission and reception in full duplex environments.

Half Duplex Operation

Explains the mutually exclusive transmit and receive states in half duplex.

Pacing Mechanisms

Covers transmit and receive pacing mechanisms like handshake and XON/XOFF.

Status

Introduction to Status Information

Overview of obtaining and interpreting status information from the HP 2624A.

Interpreting Status

Explains how to interpret status bytes using ASCII character codes.

Terminal ID Status

Describes how to request and verify the terminal's model identification.

Primary Terminal Status

Details the first set of status bytes reporting configuration and error flags.

Secondary Terminal Status

Covers the second set of status bytes reporting configuration and memory lock.

Device Status

Explains how to obtain status information for printers.

Error Messages and Self-Tests

Introduction to Errors and Self-Tests

Overview of terminal error messages and self-test procedures.

Error Messages

Lists and explains various error messages that may appear on the terminal.

Terminal Self-Tests

Details the six types of self-tests available for the HP 2624A.

User Data Comm Test

Describes the user data communication test procedure.

Printer Test

Explains the printer test procedure to verify integral printer functionality.

Manufacturing Test

Covers the manufacturing test used during terminal burn-in.

Identify ROMs

Explains how to generate a list of all installed ROM chips.

Terminal Maintenance Procedures

Cleaning the Screen and Keyboard

Provides instructions for cleaning the terminal's screen and keyboard.

Battery Maintenance

Details the battery replacement schedule and procedure for non-volatile memory.

Thermal Printer Paper

Specifies the type of thermal paper required and how to purchase it.

Paper Loading

Provides step-by-step instructions for loading thermal printer paper.

Appendix A: Summary of Command Sequences

Data Operations

Lists escape sequences for controlling data transfers and operations.

Appendix B: Keyboards and Character Set

National Keyboards

Shows layouts for various national keyboards available as options.

7-Bit vs. 8-Bit Operation

Explains the terminal's configuration for 7-bit and 8-bit data operations.

ISO/ASCII Character Set

Details the standard ISO/ASCII character set and national language variations.

Large Character Set

Describes how to construct large characters using alphanumeric and symbol keys.

Math Set

Explains how to generate mathematical symbols using keyboard keys.

Line Drawing Set

Details how to use the line drawing set for creating forms.

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