IBM 3270 Bedienungsanleitung

System

GA23-0119-1

File No.

5360/5370/53/4300/8100-09

laM

3270

Information Display

System

Entry Assist

User1s Guide

IBM 3274 Control Unit

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Second Edition (March

1984)

This revision obsoletes GA23-0119-0.

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Preface

This publication describes

the

capabilities

and

use

the

3274

Control

Unit

Entry

Assist function. This version of

Entry

Assist

operates only

3274

Control

Unit

equipped with Configuration

Support D.

The

procedure for enabling

Entry

Assist is detailed in

the

IBM

3270

Information Display System:

3274

Control Unit

Customizing Guide, GA23-006S.

The

Entry

Assist capabilities (Section

are described in two

groupings: formatting operations

and

cursor/editing

operations.

The

use

Entry

Assist with selected currently available host editor

programs is described

Section 4.

Other

application hints are also

provided.

Section 5 contains

Entry

Assist tutorial for self-teaching.

Appendix A lists

the

display units

that

can

used with

the

3274

Control

Unit

Entry

Assist function.

A list

abbreviations used

this publication follows Appendix A.

Preface

iii

Contents

Section 1. Overview 1

1.1 Description 1

1.2 Prerequisites 3

1.3 IBM

Host

Editor

Programs 4

Section 2. Installation 6

Section 3. Entry Assist Capabilities 10

3.1

Formatting

Controls 10

3.1.1 Set Margins 14

3.1.1.1

Standard

Margin Type 14

3.1.1.2 Alternative Right Margin Type

3.1.2 Set

Tab

Stop

3.1.3 Set Audible

End

of Line Signal (Set Bell) 16

3.1.4

Clear

Tab

Stop

and/or

Audible

End

of Line Signal

3.1.5 Clear All

Tabs

3.1.6

Change

Scale Line Origin

3.1.7

Permanence

Entry

Assist

Parameters

3.2

Cursor

Movement

and

Editing Keys

3.2.1

Word

Wrap

3.2.2

Word

Wrap

Insert Mode

3.2.3 Typematic Move

Cursor

Word

3.2.4 Typematic Move

Cursor

Word

3.2.5 Delete

Word

3.2.6 Typematic Delete

Character

3.2.7

Enhanced

Cursor

Tab

3.2.8

Enhanced

Cursor

Backtab

3.2.9 Error-Correcting Backspace

3.2.10

Enhanced

New

Line

3.2.11

Cursor

Position

Indicatoc

Section 4. Operational Considerations 23

4.1 Selective Use of

Entry

Assist Capabilities

4.2

Entry

Assist/Host

Editor/Formatter

Considerations

and

Limitations

4.2.1

SPF

4.2.2

ICCF

4.2.3

XEDIT

4.2.4

EDGAR

4.2.5

DPPX

4.2.6

DCF

4.2.7

VMSG

Facility (VM/370) 27

4.3 Application Hints 27

4.3.1 Using

Entry

Assist

Create

and

Maintain

Source

Programs,

JCL

Lists, Etc.

4.~.:l

Using

Entry

Assist with

Other

Programs

4.3.3

Preparing

Simple Memos without Using

DCF

Section 5. Entry Assist Tutorial 30

Appendix

Eligible Display Units 38

List

Abbreviations 39

Contents

Figures

Entry

Assist Keyboard Layouts 7

Entry

Assist Scale Line 10

3. Change

Format

Active Keys

Section 1. Overview

The 3274 Control Unit Entry Assist function provides attached

eligible display units with new capabilities for limited local format,

entry, and edit control when operating with one of the IBM host

editors listed under heading 1.3. The 3274 Entry Assist function

provides conveniences and productivity improvements for 3270

operators in applications involving the entry and editing of text

material; for example:

• Office correspondence, such as letters, memos, reports, lists, and

schedules

• Formal publications, such as books, magazines, and brochures

• Source program material, such as COBOL, FORTRAN, and

assembler language source program statements

• Job control language (JCL) statements

• Other text material normally handled by the listed host editors.

Potential users of Entry Assist include secretaries, administrative

personnel, clerical personnel, executives, managers, planners,

engineers, writers, programmers, and, in general, anyone using 3270

displays for text-related activity.

1.1 Description

The 3274 Entry Assist function provides the following

operator-activated capabilities:

• Display of

'on-demand scale' line for establishing margins,

tab stops, and an

'end

of line' signal position

• Screen margins

• Tabbing

• Audible 'end of line' signal

• Word wrap (automatic new line)

• Typematic forward and.reverse cursor movement by word

(word advance, word return)

Section 1. Overview 1

• Word delete

• Typematic character delete

• Typematic error-correcting backspace when in insert mode

• On-demand cursor position display.

The Entry Assist capabilities are made available

the display

terminal when the operator selects them by pressing the Document

On/Off

(DOC ON OFF) key on the attached keyboard.1 This

action establishes document mode. To establish, check the status of,

orchange the setting of format controls, the operator must first

establish change format mode. The operator establishes change

format mode by pressing the Change Format

(CHG

FMT) key.

(Another pressing of the key turns off change format mode.) When

the terminal

in change format mode, the operator can check the

status of, or set, margins, tab stops, and audible 'end of line' signal

positions according

the needs of the job to be done. A "scale

line"

used

establislring these line format parameters, providing

a visual indication of their position

the line. The scale line

viewable only in change format mode.

With line formats established, the operator disables the change

format mode and is now ready to execute text entry/edit; for

example, enter a letter into the system. The body of the input

material

automatically confined within the margins. The audible

'end of line' signal serves the same purpose as on a

typewriter-it

warns the operator of the need

perform a new-line operation.

For many applications, however, a word wrap facility provides an

automatic new-line operation, automatically moving partially typed

words to the next line, provided the next line contains only nulls or

spaces. The word wrap facility allows an operator to type without

considering the need for executing new-line operations.

columns of numbers or words are to be entered, the Tab key

positions the cursor to the next tab stop, replacing unprotected null

characters with space characters. This allows for rapid entry of

tabular material.

For

the 3179

and

3180 Display Stations

native mode, you must first place

the

unit

extended-select mode by pressing the

SEL

key.

Note: The Tab key positions the cursor

the next unprotected

field if there are no intervening

tab

stops. Nulls are not changed

spaces in this operation.

To facilitate editing tasks, rapid cursor positioning and improved

delete capabilities are available. The cursor

may

moved to the

next or previous word with a single keystroke.

may also be

positioned to the next

previous tab stop with a single keystroke.

Both capabilities are typematic, allowing rapid positioning of the

cursor anywhere

the screen. The new delete capabilities are a

word delete, which deletes from the current cursor position

the

end of the word; a typematic single-character delete, which

supplements the current nontypematic single-character delete; and a

typematic single-character backspace delete while in insert mode.

The On-Demand Cursor Position indicator causes the position of

the cursor to be displayed in the operator information area in

rrlcc

form, where rr and cc are row

and

column numbers, respectively.

Note: When a document is created by use of Entry Assist's

formatting facilities (margins, tabs), it cannot be automatically

reformatted

a later time by the simple changing

Entry Assist

format control. (See heading 4.2.6 for further discussion.)

1.2 Prerequisites

The 3274 Entry Assist function is available

the

display units

identified in Appendix A when these displays are attached

IBM 3274 Control Unit configured for Configuration Support D

and customized

enable Entry Assist.

The 3274 Entry Assist function is supported

typewriter, APL,

and

RPQ

8KI038

keyboard layouts only. Some keyboard keytops

need

be replaced with new keytops or relabeled with stick-on

labels

identify the unique Entry Assist capabilities. (See Section 2

for installation instructions.) Users can purchase

Entry Assist

Keytop Replacement

and

Accessory Kit (for 3278

and

3279

keyboards) containing eight sets of five replacement keytops and a

keytop extractor tool. .

The audible alarm feature is required

the 3278

and

3279 displays

implement the audible

'end

line' signal capability.

Section 1. Overview 3

1.3 IBM Host Editor Programs

The 3274 Entry Assist function is intended for use primarily with

the existing full-screen host editor programs listed below.

Interactive Systems Editor Programs

Under

VM/SP

(5749-010

VM/370,

Release 6 and'beyond)

• PROFS PRPQ Editor

• XEDIT

• SPF, ISPF

/PDF

(edit functions)

Under

VM/370

(5749-010

VM/370)

• SPF,

ISPF/PDF

(edit functions)

• Display Editing System

(!UP

5796-PJP)

Under DOS

VSE/ICCF

•

ICCF

Editor

UnderTSO

• SPF,

ISPF/PDF

(edit functions)

DBDC

Systems Editor Programs

Under

CICS/VS

• IPDT VSE (edit functions)

• IPDT OS

/VS

(edit functions)

Under

IMS/VS

• IPDT

OS/VS

(edit functions)

8100

Systems Editor Programs

DPPX Editor

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