HP 262SA User manual

HEWLETT (h~ PACKARD
Reference Manual
for
HP 262SA Dual-System Display Terminal
and
HP 2628A Word-Processing Terminal
Part Number: 02625-90002

FEDERAL COMMUNICATIONS COMMISSION
RADIO FREQUENCY INTERFERENCE STATEMENT
The Federal Communications Commission (in 47 CFR 15.818) has specified that the following
notice be
brought to the attention of the users of this product.
This equipment generates, uses, and can radiate radio frequency energy and if not installed
and used in accordance with the instructions manual, maycause interferenceto radiocommu-
nications.
It has been tested and found to comply with the limits for aClassAcomputingdevice
pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable
protection against such interference when operated in acommercial environment. Operation
of this equipment in aresidential area is likely to cause interference in which case the user at
his own expense will be required to take whatever'measures may be required to correct the
in terference.

r Table of Contents
~ .. " ......
\' ,
Section 1
INTRODUCTION
Introduction . . .. .. . .. . . . . .. . . . . . . . . . . . . . . . . 1-1
Display Memory 1-3
Terminal Modes 1-4
Peripheral Device Connection
.. . . . .. . . . . . . .. 1-5
Configuration of the Terminal . . . . . . . . . . . . . .. 1-5
Data Communications .................... .. 1-5
Graphics . . . .. . . . . . .. 1-5
Word Processing ......................... .. 1-5
Escape Sequences 1-5
Section 2
TERMINAL CONTROL
Introduction 2-1
Selecting Modes 2-1
RemotelLocal Modes 2-1
Character/Block Modes . . . . . . .. . . . . . . . . . . . 2-2
Line Modify Mode ..................... .. 2-3
Modify All Mode 2-3
Auto Line Feed Mode .. . . . . . .. . . . . . . . . . .. 2-4
Display Functions Mode ..................2-5
Memory Lock Mode 2-6
Smooth Scroll Mode 2-7
Caps Lock Mode . . . . . .. . . . . . . . . . . . . . . . . . . 2-8
Format Mode . . . .. . . . . . . . . . . . . . . . . . .. . . . . 2-8
User Definable Function Keys ...............2-9
Defining Keys Locally (Definition Mode) .. 2-10
Defining User-Definable Function Keys
Programmatically 2.13
Controlling the User Key Menu
Programmatically ....................
.. 2-15
Triggering the User Keys
Programmatically
... . . . . .. . . . . . . . . . .. .. 2-15
Programmable RETURN Key 2-15
Controlling the User Key Labels
Programmatically 2-16
User Key Mode 2-16
Keyboard Data Entry .......... .. 2-17
Keyboard Controls . . . . . . . . . . . . . . . . . . . . . . .. 2-17
Enable/Disable Keyboard . . . . . . .. . . . . . .. . 2-17
Soft Reset 2-18
Hard Reset 2-19
Break 2-20
Bell 2-20
Wait 2-20
Modem Disconnect 2-20
Section 3
CONFIGURING THE TERMINAL
Introduction ...............................3-1
Nonvolatile Memory 3-1
Configuration from the Keyboard ............3-1
Configuration Menus 3-2
How to Display aMenu 3-2
Modifying and Activating Configuration
Values 3-2
To Return to Normal Operation . . . . . . . . . .. 3-4
Global Configuration ................... .. 3-4
Terminal Configuration 3-5
Datacomm Configuration 3-15
Choosing Buffer Sizes for Multipoint
Configurations 3-26
Programmatic Configuration 3-27
Configuration Escape Codes 3-27
Lock/Unlock Configuration Menus 3-28
Section 4
DISPLAY CONTROL
Introduction ............................... 4-1
Cursor Controls 4-2
Home Up 4-2
Home Down 4-3
Move Cursor Up ....................... .. 4-3
Move Cursor Down 4-3
Move Cursor Right 4-4
Move Cursor Left ........................4-4
Screen Addressing 4-4
Workspace Addressing 4-5
Cursor-Relative Addressing 4-6
Combining Addressing Methods ........... 4-8
Cursor Position Sensing 4-8
Window Control ...................... .. 4-8
Roll Text Up 4-9
Roll Text Down ..........................4-9
Next Page!Previous Page 4-10
Edit Operations 4-11
Insert Line ....................... .. 4-12
Delete Line 4-12
Insert Character 4-12
Insert Character with Wraparound 4-14
Delete Character 4-16
Delete Character with Wraparound 4-17

Clear Display 4-18
Clear Line 4-19
Setting and Clearing Margins 4-19
Setting and Clearing Tabs 4-20
Tab
4-21
Back Tab 4-22
Display Enhancements
4-22
Section 5
DESIGNING AND USING FORMS
Introduction ............................... 5-1
Data Fields on aData Entry Form . . . . . . . . . . . 5-2
Protected Data Fields 5-2
Unprotected Data Fields 5-2
Transmit-Only Fields 5-2
Security Fields 5-2
How to Design Data Entry Forms . . . . . . . . . . . 5-3
Line Drawing Character Set . . . . . . . . . . . .. . . 5-3
Drawing Forms Using the Function Keys ... 5-4
Transmit Modified Fields .................
5-6
Defining Fields Programmatically 5-6
How to Transfer Forms from the Screen
to aHost Computer . . . . . . . . . . . . . . . . . . . . . . .
5-7
Enabling and Disabling Format Mode . . . . . . . . 5-9
Terminal Operation in Format Mode
5-9
Cursor Behavior 5-9
Display Control Functions in
Format Mode . . . . .. . .. . . . . .. . . .. . . . . .. . .
5-9
How to Send Format Mode Data
to aHost Computer 5-10
Section 6
PERIPHERAL DEVICES
Introduction . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . 6-1
Supported Plotters ......................... 6-2
Supported External Printers 6-3
External Device Installation 6-3
Plotter Control 6-7
External Printer Operations 6-7
Selecting the External Printer as the
Destination Device .. . . . . . . . . . . . . . . . . . . . . . . 6-7
Paper Movement 6-8
Record Mode
.. . . .. . .. . . . .. . . . .. . . . . . .. . .. . 6-8
Data Logging Modes 6-9
Log Top Mode ........................... 6-9
Log Bottom Mode 6-10
Terminal to Printer Data Transfers
6-11
Copy Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
Copy Page 6-12
Copy All 6-12
Copy the Entire Active Workspace 6-13
ii
Computer to Printer Data Transfers 6-13
Binary Data Transfer 6-13
ASCII Data Transfer 6-14
Determining ifYour Escape Sequence
Command Has Been Successfully
Performed. 6-
14
Section 7
DATA COMMUNICATIONS
Introduction ............................... 7-1
Point-to-Point or Multipoint 7-2
Point-to-Point Considerations 7-4
Hardwired Connections ...................7-5
Modem Connections 7-6
Point-to-Point Installation 7-6
Point-to-Point Cabling 7-7
Point-to-Point Configuration 7-10
Point-to-Point Programming Information 7-10
Character Mode 7-10
Multicharacter Transfers 7-10
'Start and Stop Bits
7-11
Parity Checking 7-11
Receive Buffer 7-12
Receive Errors 7-12
Local/Remote Modes 7-12
Full Duplex Operation 7-13
Pacing Mechanisms 7-13
Multipoint Considerations 7-15
Asynchronous/Synchronous Decisions . . . . . 7-16
Hardwired Modem Decisions 7-16
Hardwired Connections 7-18
Modem Connections 7-18
Multipoint Installation 7
-19
Multipoint Cabling 7-20
Multipoint Configuration ................
.. 7-23
Multipoint Programming Information .......7-23
Polling and Selecting 7-23
Character Mode Transfers 7-30
Block Mode Transfers 7-31
Multipoint Operating States 7-38
HP Multipoint Protocol Control
Sequences .............................7-40
Monitor Mode ........................
.. 7-43
Malfunction in aMultipoint Environment ...7-46
Section 8
STATUS
Introduction ............................... 8-1
Status Transfer Handshaking 8-2
Status Transfer Priority 8-3
Terminal Identification .....................8-3
Interpreting Status .........................8-3
."

r
Terminal Status 8-4
Primary Terminal Status 8-4
Secondary Terminal Status
8-7
Terminal Capabilities 8-10
Device Status 8-15
Section 9
BLOCK DATA
TRANSFERS
Introduction . . .. . .. . . . . . .. . . . . . . .. . . . . . .. . . 9-1
Handshaking 9-1
Handshake Types 9-1
Handshake Mode Selection 9-2
Permanent Block Mode
9-5
Handshake Priority 9-5
DC1 Trigger Reset 9-5
DC2 Transfer . .. . . . . .. . . . . . . . . .. . . . . . . .. . 9-6
ENTER Key Data Transfers . . . . . . .. . . . .. . . . 9-6
Data Transfer Event Sequence . . . 9-7
Non-Format Mode Data Transfer 9-9
Format Mode Data Transfer 9-10
Transfer End Characters
9-11
ENTER Key Data Transfer Summary 9-12
Send Display (Ec d) 9-18
Transmit Type Function Key Definition
String Transfer
... . . . . . .. . . . .. . . . . . .. . . .. 9-18
User
Key Definition String Transfer . . . . .. .. 9-18
Status Data Transfer ......................
9-20
Special Modes .. . . . . . . . . . . . . . . . . . . . . . . . . .. 9-20
Auto Keyboard Lock Mode 9-20
Send Cursor Position Mode
9-21
Section 10
ERROR MESSAGES
Introduction 10-1
Error Messages 10-1
Section 11
TERMINAL MAINTENANCE
Introduction 11-1
Malfunction at Power On 11-1
Troubleshooting Procedures 11-2
Configuration Checking 11-2
Resetting the Terminal . . . . . . . . .
.. 11-2
Terminal Self Test .................... .. 11-4
Preventive Maintenance .. ............... .. 11-5
Cleaning the Screen and Keyboard 11-5
Protecting Non-Volatile Memory 11-5
Display Adjustments 11-6
Appendix A
ESCAPE CODES
Introduction A-I
Appendix B
KEYBOARDS AND
CHARACTER SETS
Alternate Character Sets B-1
Selecting Alternate Character Sets B-1
The Math Character Set ...............
.. B-3
The Line Drawing Set
... .............. .. B-3
Support for International Languages B-4
7-Bit
Vs 8-Bit Operation B-5
Extended Characters Mode B-IO
Appendix C
INTEGRAL PRINTER CONTROL
Introduction C-l
Selecting the Integral Printer as the
Destination Device
C-2
Paper Movement C-2
Printer Modes C-2
Continuous Forms Mode C-3
Report Format Mode C-3
Metric Format Mode .....................C-4
Expanded Characters Mode
C-5
Compressed Characters Mode .............C-6
Record Mode
C-6
Log Top Mode C-7
Log Bottom Mode C-8
Printer Operations .........................C-9
Copy Line
C-9
Copy Page C-I0
Copy
All C-IO
Copy the Entire Active Workspace C-IO
Computer to Printer Data Transfers ........ C-ll
Printer Status C-l1
Printer Self Test
C-12
Maintaining the Integral Printer ......... .. C-13
Printer Paper C-13
Loading Printer Paper C-14
Appendix D
GRAPHICS
Introduction D-l
Graphics Display D-l
Keyboard Graphics Functions D-2
Graphics Control Functions . . . . . .
.. D-3
Programmable Graphics Functions ..........D-3
Control Codes ...........................D-4
Commands D-4
Parameters D-6
Graphics Display Control D-7
Graphics Cursor Control D-7
Graphics Memory Control ................D-8
Graphics Drawing Mode Parameters D-9
Dra~ng Modes D-9
Drawing Patterns D-l1
iii

Area Fills .............................. .. D-17
Selecting an Area Fill Pattern . . . . . . . . . .. D-17
User Defined Area Fill Patterns D-18
Using Area Fill Patterns as Line Types D-19
Rectangular Area Fills D-20
Fill Rectangle, Absolute . . . . . . . . . . . . . . . D-21
Fill Rectangle, Relocatable
D-21
Polygonal Area Fills D-21
Area Boundary Pen D-22
LiftlLower Boundary Pen D-23
Relocatable Origin D-23
Set Relocatable Origin, Absolute D-24
Set Relocatable Origin to Current
Pen Position
.. . . . . . . . . . . . . . . . . . . . . . . .. D-24
Set Relocatable Origin
to Graphics
Cursor Position D-24
Selecting the Graphics Default Parameters . . D-25
Plotting Sequences D-26
Pen Control D-27
Use Cursor as Next Data Point
.. . . . . . . .. D-27
Rubberband Line Mode D-28
Draw aPoint
at the Current
Pen Position D-28
Vectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-28
ASCII Formats D-29
Binary Format . . . . . . . . . . . . . . . . . . . . . . .
.. D-31
Mixing Data Formats
.... ...............D-34
Graphics Functions in Display Functions
Mode D-35
Graphics Hardcopy Operations D-37
Initiating aTransfer From the Keyboard .D-37
Using the Ec&p Escape Sequences . . . . D-37
Graphics Text D-38
Keyboard Control of Graphics Text . . . .
.. D-39
Program Control of Graphics Text . . . . .
.. D-40
Selecting the Graphics Default
Parameters D-44
Graphics Hard Reset . . . . . . . .
.. D-44
Compatibility Mode D-45
Compatibility Mode Configuration D-45
Graphics Data D-48
Graphics Data Format . . . . .. . . . . . . . . . . . . D-49
Text
D-51
4014 Emulation D-52
Programming Considerations D-53
Graphics Status
.. ...................... .. D-53
Read Device ID
(Parameter=l) D-56
Read Current
Pen Position
(Parameter=
2) D-57
Read Graphics Cursor Position
(Parameter=
3) D-58
Read Cursor Position with Wait
(Parameter=
4) D-58
iv
Read Display Size (Parameter= 5) D-60
Read Device Capabilities
(Parameter=6) .D-60
Read Graphics
Text Status
(Parameter=
7) D-61
Read Zoom Parameter
(Parameter=8) D-61
Read
Relocatab1E! Origin (Parameter=9) .. D-61
Read Reset Status (Parameter=10) D-62
Read Area Shading Capability
(Parameter=
11) D-62
Read Graphics Modification Capabilities
(Parameter=
12) D-62
Any Other Parameter ...................D-62
Appendix E
AppendixF
3278/78 EMULATION MODE
Introduction F-l
The mM 3270 Information Display System . . F-2
HP's Emulation ofthe 3276/8 ...............F-3
Using Your Terminal in an
IBM Environment ......................
.. F-3
Host Operating Systems ..................F-3
Datacomm F-5
Modem Options F-6
Preparing Your Terminal For Use F-18
Pre-Installation Preparations F-18
Cable Connections ......................F-18
Switching Between Personalities F-20
Screen Display
at Power On .............F-20
Configuring For IBM Mode F-21
Displaying
The IBM Configuration Menu . F -21
The" IBM Keyboard F-24
IBM Character Keys F-25
Character Selection Keys ..................F
-26
Shift Key ............................ .. F -26
Alt Key F-26
Shift Lock Key F-26
(A,a/A) Switch F-27
Field-Oriented Cursor Movement Keys F
-27
Tab Forward ...........................F -27
Back Tab F-27
New Line Key F-28
Home Key F-28
Character-Oriented Cursor Movement Keys . F-29
Vertical Movement Keys F-29
Scroll Function Keys
.. ..................F-29
Horizontal Movement Keys ..............F-30
Backspace Key . . . . . .. . . . . . . .
.. F-30
Cursor Definition Keys . . . .. . . . . . . . . . . . . . . . F-30
Alternate Cursor Key F-30
Cursor Blink Key .......................F-30

Erasing The Display . . . .. . . . . . . . . . . . . . . . .. F -31
Clear Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F -31
Erase End Of Field Key F -31
Erase Input Key F-31
Tests, Errors, And Recovery . . . . . . . . . . . . .
.. F-32
System Request Key . . . . . .. . . . . . . . . . . . . . F-32
Test Key F
-32
Click Key . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . F-32
Reset Key F-33
I/O Initiation And Program Interaction . . .
.. F -33
Enter Key F-33
Program Function Keys ...............
.. F-33
Program Access Keys F-34
Cursor Select Key . . . . . . . . . . . . . . . . . . . .
.. F -34
Attention Key . . . .. . . . . . . . . . . . . . . . . . . . .. F-35
Printer Function Keys F
-35
Print Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F -35
Identity Key . . . . .. . . . . . . . . . . . . .. F-35
Device Cancel Key ......................F-35
Editing Capabilities . . .. . . . . . . . . . . . . . . . . . . . F-35
Insert Key F-36
Delete Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-36
Unique Displayable Characters F-37
The Duplicate Key F-37
The Field Mark Key ....................F
-37
The Display ..............................F-37
Video Enhancements F-38
Field Enhancements F-38
Application Programs ...................
.. F-39
Commands And Orders F-39
Commands F-39
Write Commands F-39
Read Commands F-40
Control Commands F-40
Orders .................................F-40
Buffer Control Orders .................F-40
Printout Format Orders F-41
Print Operations F -41
Copying Data To An External Printer . . .. F -41
Copying Data To The Integral Printer . . . . F-42
Status Line
and Error Messages F-43
Differences Between IBM 3276
and
HP 2625A F-44
v

List of Illustrations
Screen/Display Memory Relationship 1-3
Primary Terminal Modes 1-4
User Keys Menu, Showing Default Values
2-10
Global Configuration Menu 3-5
Terminal Configuration Menu ............... 3-5
Full Duplex Hardwired Configuration
Menu
3-15
Full Duplex Modem Configuration Menu 3-15
Multipoint Asynchronous Menu 3-15
Multipoint Synchronous Menu 3-15
The "Roll" Data Functions 4-9
Previous Page and Next
;Page Concepts 4-10
Character Insert with Margins
4-13
Character Insert with Wraparound 4-15
Character Delete with Margins .............
4-16
Delete Character with Wraparound 4-18
Sample Form Created Using Format
Mode
5-1
Sample Data Entry Form . . . . .. .. . . . .. . . .. . . 5-3
Line Drawing Set Keyboard Keys 5-4
Example Data Entry Form 5-4
FORMIO Source Listing 5-8
Plotter Connected in Eavesdrop
Configuration
6-5
HP 2625A API Configuration 6-5
HP 2628A API Configuration 6-6
Printer Connection to Standard
HP 2628A . . .. . . . .. . .. . . . .. . . . .. . . .. . . .. . . 6-6
Top Logging 6-10
Bottom Logging 6-10
Dual Connector (Options 026 and 046) 7-4
Point-to-Point Decision Tree 7-5
Terminal Rear View (Typical) ............... 7-6
Point-to-Point Hardwired Configuration ..... 7-7
Terminal Connection to an HP 13265A
Modem Pod or an HP 13266A
Current Loop Converter . .. 7-8
HP Multipoint Decision Tree 7-15
HP Multipoint Configuration
.(Leased Line, Multidrop)
7-17
HP Multipoint Configuration 7-20
DSN Data Link Connection 7-21
Multipoint Terminal Addressing 7-24
Poll Sequence Format 7-25
Group Poll Sequences 7-26
Select Sequence Format ........ .. 7-27
Group Select Sequences 7-27
Line Select Sequences 7-28
vi
Status Request Sequences .... . . . . . . . . . . . .. 7-28
Typical Configuration Status Request
and Response Sequence 7-29
Configuration Status Byte Contents .
.. 7-30
Examples of Block Transmissions
7-31
Operation of Block Protocol Control
Characters
(2 pages) 7-41
Communications Line Using aMonitor 7-44
Sample Data Transfers Displayed in
Monitor Mode ..........................7-45
Character Distortion in Group Poll 7-45
Data Overrun Indication ...................7-45
Terminal Primary Status Example 8-5
Terminal Primary Status Bytes 8-6
Terminal Secondary Status Example 8-8
Terminal Secondary Status Bytes 8-9
Terminal Capabilities (Alphanumeric
Typical) Status Example
8-11
Terminal Alphanumeric Capabilities
Status Bytes 8-12
Terminal Graphics Capabilities
Status Bytes 8-13
Installed Memory Status Bytes .............8-14
Terminal Interface Capabilities
Status Bytes 8-15
Device Status Example ............
.. 8-16
Device Status Bytes 8-17
Modes Affecting ENTER Key Operation . . . . . 9-7
Initial
HP Screen Display 11-1
Terminal Test Pattern 11-4
Battery Support Location 11-6
Battery Replacement ....................
.. 11-7
Screen Brightness Control 11-8
Math Character Set ........................B-3
Line Drawing Set Elements .................B-4
Swedish Keyboard .........................B-6
Norwegian Keyboard B-6
German Keyboard
.. .......................B-6
United Kingdom Keyboard B-7
Spanish Keyboard B-7
French Canadian Keyboard B-7
French Keyboard B-8
Italian Keyboard B-8
Dutch Keyboard B-8
Finnish Keyboard B-9
Danish Keyboard B-9
Extended Character Mode for
USASCII Keyboard
B-l1
Bit Mapping for Roman 8Character Set B-12
.
~.,
"',

r.,· .. ··,
~ ..
Report and Metric Formats C-4
Character Sizes and Enhancements as
Printed on the Integral Printer ......
.. C-5
Top Logging C-8
Bottom Logging ....................... C-8
Integral Printer Test
Pattern . . . . . . . . . . . . .. C-12
Integral Printer Mechanism C-13
Graphics Control Keys D-2
Examples of Drawing Modes D-I0
Examples of Drawing Modes D-I0
Predefined Line Type Patterns D-12
Using Area Patterns as Line Types D-14
Examples of User Defined Line Types D-15
Area Paterns Examples . . . . .. . . .
.. D-16
How the Area Fill Pattern is Mapped . . . . . . . D-17
Examples of User-Defined Area Fill
Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-19
Using Area Fill Patterns as Line Types
..... D-20
Overlapping Polygon Area Fills D-22
Polygon Area Fill Example D-22
Relocatable Origin D-23
Example of Mixed Oata Formats
0-34
Displaying Graphics Sequences D-36
Graphics
Text Characters 0-39
Graphics Text Sizes 0-41
Graphics Text Directions 0-41
Graphics Text Cursor Position .............
0-42
Turning On Compatibility Mode D-48
Comparison ofthe 4014 and the
HP Terminal 0-49
Scaled Oata .............................. 0-50
Unscaled Oata D-50
Determining Address Bytes 0-51
Communication Line Configurations .........F-6
3276/8 Configuration Menu F
-21
IBM Key Locations on HP Keyboard F -24
vii

Introduction
INTRODUCTION
1
Terminals covered by this manual are the HP 2625A Dual System Display Terminal and the
HP 2628A Word Processing Center. The standard 2625A can operate as an HP terminal,
similar to an
HP 2622A Display Terminal, or simulate an IBM· 3276 Control UnitlDisplay
Station. The
standard 2628A is similar to the 2625A, without the IBM terminal simulation
capability,
but with the HPWORD word-processing capability. (The 2625A also has the
HPWORD word-processing capability, as an option.) The features of the standard 2625A and
standard 2628A, and
the options of both, are listed below.
OPTION 2625A 2628A
Std HP/IBM dual personality terminal. Word processing terminal.
Port 1: Datacomm port for connec- Port 1: DSN port.
tion to a Distributed Sys-
tems Network (DSN).
001
002
004
005
006
007
008
009
010
011
012
013
014
015
016
021
Port 1: RS-232-C or RS-422
datacomm port.
Port 2: IBM Bisync datacomm port.
Swedish keyboard.
Norwegian keyboard.
German keyboard.
United Kingdom keyboard.
Spanish keyboard.
French Canadian keyboard.
French keyboard.
Italian keyboard.
Dutch keyboard.
Finnish keyboard.
Danish keyboard.
240V, 50 Hz
100V, 60 Hz
220V, 50 Hz
100V, 50 Hz
Port 1: RS-232-C or RS-422
datacomm port.
Port 2: RS-232-C or RS-422
printer/plotter port.
Swedish keyboard.
Norwegian keyboard.
German keyboard.
United Kingdom keyboard.
Spanish keyboard.
French Canadian keyboard.
French keyboard.
Italian keyboard.
Dutch keyboard.
Finnish keyboard.
Danish keyboard.
240V, 50 Hz
100V, 60 Hz
220V, 50 Hz
100V, 50 Hz
• IBM is a trademark of International Business Machines Corporation.
1-1

Introduction
OPTION 2625A 2628A
022
Port
1:
Datacomm port for
Port 1:
Datacomm port for connec-
connectionto
an HP 13265A
tion to an HP 13265A
modem or an HP 13266A
modem or an HP 13266A
Current Loop Adapter.
Current Loop Adapter.
026
Port 1: Dual port; standard
da tacomm and Alternate Pe-
ripheral Interface ports.
(Supplied only
with graphics. option
523.)
027
Port 1:
First multipoint async/sync Port 1:
First multipoint async/sync
terminal port. First termi-
terminal port.
nal in a multipoint network
must have this option.
028
Port 1:
Async multipoint daisy
Port 1:
Async multipoint daisy
chain terminal port.Anyter-
chain terminal port.
minal except the first in an
async multipoint network
must have this option.
038
Port 1:
Same as option 028, except Port 1:
Same as option 028, except
usedfor sync
multipoint con- usedfor sync
multipoint con-
figurations. figurations.
046
Port 2: Dual port; external printer and
Alternate Peripheral Inter-
face ports. (Supplied only with
047
Port 2: First IBM Bisync terminal
graphics option 523.)
port. First terminal in an
IBM Bisync network must
have this option.
048
Port 2: IBM Bisync daisy chain ter-
minal port.Any terminal ex-
cept the first in an IBM
Bisync network
must have
this option.
050
Integral printer.
Integral printer.
061
Green CRT. Green CRT.
062 Amber CRT. Amber CRT.
401
Tilt and swivel base.
Tilt and swivel base.
523 Graphics capability. Graphics capability.
528 HPWORD word processing capabil-
ity
1-2

Introduction
DISPLAY MEMORY
A portion of terminal memory, called display memory, is reserved for storing data for display
on
the screen. For the HP 2625A, display memory consists of an HP workspace and an IBM
workspace (figure 1-1).
Of course, the HP 2628A has only an HP workspace. The part of the
workspace displayed on the screen is called the window.
Display
~
r wor~
Currently
Active
Workspace
IBM
Workspace
Window
Figure 1-1. ScreenlDisplay Memory Relationship
1-3

Introduction
TERMINAL MODES
The terminal operates in a variety ofmodes, some ofwhich are selectable using the function
keys;
others are selected on the configuration menus. The primary modes are illustrated in
figure 1-2 and listed below.
I
Local
Modes
I
I
Char
h
Non- Format
Format
I
Remote
I
I
Non-
Format
I
Line
I
Format
I
Block
I
I
Non-
Format
I
Page
I
Format
•Local
•Remote
•
Character
•Block
•Line
• Page
• Format
•Non-Format
1-4
Figure 1-2. Primary Terminal Modes
Data entered from the keyboard is displayed on the screen, but the
terminal is disconnected from the host computer.
The terminal is connected to the host computer. Data entered from the
keyboard is transmitted to the computer, and data received from the
computer is displayed on the screen.
Active only
in Remote mode. Data is transmitted to the host computer,
one
character at atime.
Active only
in Remote mode. Data is transmitted to the computer in
blocks; selectable as one line per block, or as one page per block.
Active only
in Remote Block mode. Data is transmitted to the host
computer in blocks, each consisting of one line.
Active only
in Remote Block mode. Data is transmitted to the host
computer as ablock, consisting of one page (one screenful).
Active only
in Remote mode. Used to transfer, to the host computer,
data entered into data entry forms, which are displayed on the screen.
Enables restriction of entry data to selected fields on the form, and
restriction to selected data types (numeric, alphabetic, or unrestric-
ted).
Terminal operates normally. No restriction on data entry.

Introduction
PERIPHERAL DEVICE CONNECTION
Peripheral devices, such as printers and plotters, are connected to the terminal in an Alternate
Peripheral Interface network. Either the standard 2628A, option 046 (2628A), or option 026
(2625A) is required to connect to an Alternate Peripheral Interface network.
CONFIGURATION OF THE TERMINAL
Configuration of the terminal is performed using menus. These include aGlobal Configuration
menu, a Terminal Configuration menu, and four data communication (datacomm) menus for
the HP personality of the 2625A and for the 2628A. The IBM personality of the 2625A has a
menu of its own. Selections made on these menus determine, among other things, terminal
characteristics, coordination of data transfer between the terminal and the host computer,
parity type, and rate of data transfer.
DATA COMMUNICATIONS
The terminal can be connected to an HP host computer in either apoint-to-point or multipoint
configuration, either hardwired or through modems. Port 2 of the standard 2625A terminal is
connected to
an IBM computer in a multipoint network, for Bisync operation. In addition,
option 021 of either the 2625A or the 2628A can be connected to a distributed systems network
(DSN), aform of multipoint network.
The 2628A or the HP personality of the 2625A can transfer data either one character at a time
or in blocks of one line or one page (one screenful) at rates up to 19,200 baud.
Switching between the HP and IBM personalities of the 2625A terminal isdone with afunction
key.
Each port remains active, even though it is not currently selected.
GRAPHICS
Option 523 incorporates a graphics capability into both the 2625A and the 2628A terminals.
Refer to Appendix Dfor information.
WORD PROCESSING
Option 528 incorporates the HPWORD word processing capability into the 2625A terminal.
This capability is standard with the 2628A. Appendix E contains information on word process-
ing.
ESCAPE SEQUENCES
Escape sequences, incorporated into a computer program, enable the program to control
terminal operations. When the terminal receives the escape sequence, it performs the opera-
tion specified in the sequence. Escape sequences consist of most of the operations performable
at the keyboard, using the non-alphanumeric keys. Many sequences are also enterable from
the keyboard. References to escape sequences are made throughout the manual. Refer to
Appendix Afor acomplete list of the escape sequences and their functions.
1-5

Terminal Control
INTRODUCTION
2
This section describes the modes in which the terminal can operate, use of the function keys,
enabling and disabling the keyboard, and resetting the terminal.
SELECTING MODES
Pressing the. key enables the mode selection keys and changes the function key labels to
the following:
... EmlillIID!m. EEmI
IIi1WJIg ilia. ~ IIIIil!IBI
These keys act as toggle switches in that they alternately enable and disable the designated
mode. When a particular mode is enabled, an asterisk is displayed in the label.
Remote/Local Modes
When a communications link exists between the terminal and a remote host computer, the
terminal is in either of the following two modes:
•Remote Mode.
In this mode, when you press an alphanumeric key the associated ASCII
code is
transmitted to the host computer .
•Local Mode.
In this mode, when you press an alphanumeric key the associated character is
displayed
at the current cursor position on the screen (nothing is transmitted to the host
computer).
From the keyboard, you switch the terminal back and forth between Local and Remote modes
using the REMOTE MODE key.
From the keyboard or auser-definable key, you can switch the terminal from local to remote
(and vice versa) using the following escape sequences:
Local: Ec
&kOR
Remote: Ec &k1R
2-1

Terminal Control
ARemote/Local mode
designator is maintained in non-volatile memory. When you change
modes using the REMOTE 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
remote/local designator in non-volatile memory.
Character/Block Modes
When the terminal is connected on-line to aremote 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 <LF» 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. key.
When the terminal is in Block mode, ASCII control codes (such as <CR> and <LF » are acted
upon locally but are not usually transmitted with the data block (refer to Section 9for
detailed information on Block mode data transfers).
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 sequences:
ENABLE: Ec &k1B
DISABLE: Ec &kOB
ACharacter/Block 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
Character/block designator in non-volatile memory.
The relationship between Block, Line, Page, and Format modes is described under. key
later in this section.
2-2

Terminal Control
Line Modify Mode
When the terminal is in Remote mode and Character mode, and you are communicating
interactively with a host computer, you may sometimes enter an erroneous character string
to which the computer responds with an error message. If the character string is a lengthy
one and the error consists of only afew characters, it is a nuisance to have to retype the entire
string. In such acase, you may instead enable Line Modify mode (which temporarily switches
the terminal to aspecial form ofBlock mode). You may then move the cursor to the erroneous
line on the display and correct the character string. When the string is edited to your
satisfaction, you retransmit the line to the host computer by pressing either the 1:1 key or
the. key.
Note
that while Line Modify mode results in ablock transmission, it is completely indepen-
dent 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, and will function only in Character
mode.
From the keyboard, you enable Line Modify mode using the LINE MODIFY key. Line modify
mode is automatically disabled when you press either 1:1 or •. If you change your mind
and wish to disable Line Modify mode before retransmitting the command string, press the
LINE MODI FY key again and the terminal will return to normal Character mode.
For each line, the terminal remembers the position of the first character entered from the
keyboard. Then when you re-transmit aline in modify mode, only the portion of the line
entered from the keyboard is retransmitted; any prompt characters preceding the command
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 3.
Modify All Mode
When the terminal is in Character mode, you can enable ModifyAll mode, which switches the
terminal to aspecial form of Block mode. Modify All mode is the same as Line Modify mode
except
that it is not disabled when you press 1:1 or •.
From the keyboard, you enable and disable Modify All mode using the MODI FY ALL key.
From a program executing in a host computer, you enable and disable Modify All mode using
the following escape sequences:
ENABLE:
Ec &k1M
DISABLE: Ec &kOM
AModify All mode designator is maintained in non-volatile memory. When you change
modes using the MODI FY ALL 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.
2-3

Terminal Control
After a hard reset or turning off the power, the terminal reverts to the mode specified by the
modify all designator in non-volatile memory.
Auto Line Feed Mode ,
When Auto Line Feed mode is enabled, an ASCII line feed control code is automatically
appended to each ASCII carriage return control code generated through the keyboard. That
is, every <CR> code generated through the keyboard becomes a <CR> <LF>.
ASCII carriage return control codes can be generated through the keyboard in any of the
following ways:
•By pressing the CI key, provided that a <CR> code is included in the key definition.
•By
simultaneously pressing the III andm keys.
•By
pressing any of the user keys (_ through II1II), provided that a <CR> code is
included
in the particular key definition.
•By
pressing the. key when the terminal is in Block mode, Line Modify mode, or Modify
All mode (in
these cases a <CR> code is transmitted as the line terminator).
From the keyboard, you enable and disable Auto Line Feed mode using the AUTO IF key.
From a program executing in a host computer, you enable and disable Auto Line Feed mode
using the following escape sequences:
ENABLE: Ec &k1 A
DISABLE: Ec &kOA
When you enable or disable Auto Line Feed mode using the AUTO LF key, you also alter the
content of the ~~AutoLF" field in both active and non-volatile memory. When you enable or
disable Auto Line Feed mode using the escape sequence, however, you only change the
content of the Au t elF field in active memory.
After a hard reset or turning off the power, the terminal reverts to the mode specified by the
Au t elF field in non-volatile memory.
2-4