Ibm 3274 User manual

Systems

GA27-2850-7

File No.

5360/5370/53/4300/8100-09

IBM

3274

Control

Unit

User's

Guide

Section

1.

Operator

Information

Section

2.

Problem

Determination

----

- -

---

--

---

-----

---,-

Eighth

Edition

(August

1985,

This

major

revision

obsoletes GA27·2850·6.

Much

of

this

guide

has

been

reorganized

and

rewritten.

References

in

this--publication

to

IBM products, programs,

or

services do

nat

imply

that

IBM

intends

to

make

these

available

in

all

countries

in

which

IBM

operates. Any reference

to

an

IBM

program

product

in

this

publication

is

not

intended

to

state

or

imply..that

only

IBM's

program

product

may'be

used. Any

functionaHy

equivalent

program

may be used instead.

Publications

are

not

stocked

at

the

address given below.

Requests

for IBM

publications

should

be

made

to

your

IBM

representative

or

to

the

IBM

branch

office serving

your

locality.

A form for

readers'

comments is provided

at

the

back

of

this

publication.

If

the

form

has

been

removed,

address

comments

to

IBM

Corporation,

Department

52Q, Kingston, N.Y., U.S.A. 12401. IBM

may

use

or

distribute

whatever

information

you

supply

in

any

way

it

believes

appropriate

without

incurring

any

obligation

to

you.

International

Business

Machines

Corporation

1978,

1985

Preface

This

manual

contains

3274

operator

reference

information

and

3274

subsystem

problem

determination

procedures.

It

is

intended

for

the

operator

of

the

IBM

3274

Control

Unit

and

for

the

person

who

does problem

determination.

For

the

purposes

of

this

manual,

the

3274

subsystem

consists

of

a 3274

Control

Unit,

attached

3299

Terminal

Multiplexer

units,

and

attached

printers

and

display

stations.

Organization

of

Manual

This

manual

has

two

sections:

•

Section

1,

"Operator

Information,"

briefly

describes

the

various

models

of

the

3274

Control

Unit,

discusses

the

care

and

use

of

diskettes,

and

identifies

and

describes

the

functions

of

the

various

switches

and

indicators

(lights)

on

the

3274

operator

panel.

The

switches

and

indicators

on

a

3274

operator

panel

are

model-

and

feature-dependent;

therefore,

you

must

select

the

appropriate

figure

in

the

guide

when

reviewing

this

type

of

data

about

your

3274.

In

addition,

this

section

explains:

The

Encrypt/Decrypt

feature,

which

can

be

installed

in

the

3274

ModellC,

2lC,

3lC,

4lC,

5lC,

or

6lC

The

3274 Dial-Up

telephone

facilities

The

/3

Test

(status

summary

display

test),

which

you

use

to

obtain

statistical

information

about

the

various

elements

of

your

3274

subsystem.

•

Section

2,

"Problem

Determination,"

contains

an

overview

of

problem

determination

from a

subsystem

perspective,

Preface

III

followed

by

a symptom

index

chart

that

will sometimes

isolate

your

problem

directly

and,

at

other

times,

lead

you

to

strategic

points

in

detailed

problem

determination

procedures.

The

problem

determination

strategy

starts

at

the

attached

devices

and

progresses

toward

the

3274

Control

Unit.

How

to

Do

Problem

Determination

The

person

responsible

for problem

determination

should

become

familiar

with

the

concepts

and

facilities

described

in

this

manual

and,

once

familiar

with

them,

be

able

to

use

Section

2 for

problem

determination

when

a problem occurs.

The

problem

determination

procedures

ask

you specific

questions

and

instruct

you

to

take

certain

actions

and

to

record

the

results

on

the

3274 Control Unit Problem Report

Form, GX23-0203. A sample

of

this

form is

given

in

Figure

2-2

on

page

2-52.

In

some cases,

the

procedures

tell

you

to

perform

problem

determination

on

one

of

the

devices

attached

to

your

3274 directly,

or

on

devices

attached

to

your

3274

via

a 3299.

Be

sure

you

have

a copy

of

the

problem

determination

guide

for

each

type

of

device

attached

to

your

3274

Control

Unit

(see

"Related

Publications"

for

publication

order

numbers).

•

Following

is

a

list

of

problem

determination

guides

that

you

may

need:

IV

IBM

3178 Display Station Operator Reference Guide,

GA18-2128

IBM

3179 Color Display Station Operator Guide,

GA18-2180

IBM

3180 Display Station

Modell

User's Guide,

GA21-9468

IBM

3230 Printer Model 2 Operator's Guide, GA24-3767

(includes

problem

determination

procedures)

IBM

3262 Printer Models 3

and

13 Operator Instruction

and

Status Codes, GA24-3752

IBM

3268 Printer Model 2 Operator's Guide, GA27-3270

IBM

3270 Personal Computer Maintenance Information,

SY27-2567

(PN

1837436)

IBM

3270 Personal Computer Hardware Problem

Determination, GA23-0233

IBM

3270 Personal Computer

Attachment

User's Guide,

SA23-0169

IBM

3278 DisplffY Station Problem Determination

Guide, GA27-2839

IBM

Personal Computer 3278/3279 Emulation Adapter

Installation/ Problem Determination Guide,

PN

6936421

IBM

3279 Color Display Station Problem Determination

Guide, GA33-3051

IBM

3287 Printer Models 1

and

2 Problem

Determination Guide, GA27-3151

IBM

3287 Printer Models 1C

and

2C

Problem

Determination Guide, GA27-3231

IBM

3289 Line Printer Models 1

and

2 Error Recovery

and

Problem Determination Guide, GA27-3141

IBM

3290 Information Panel Customer Problem

Analysis

and

Resolution, GA23-0125 (U.S.

and

Canada)

Preface V

IBM

3290

Information Panel Problem Determination

Guide, GA23-0126 (WT

except

Canada)

IBM

3299 Terminal Multiplexer Customer Problem

Analysis and Resolution, GA23-0142 (U.S.

and

Canada)

Note:

You should also have a copy

of

the

IBM

3270

Information

Display

System:

Reference

Summary,

GX20-1878-5 or higher. This document contains

abbreviated problem determination procedures in

regard

to

3274 status

and

nnn

codes. The primary

source

of

information for the Reference Summary is

the 3274

Control

Unit

Description

and

Programmer's

Guide, GA23-0061.

•

Besides

the

3274

Problem

Report

Form,

GX23-0203,

you

may

also

need:

VI

IBM

Repair Authorization Form, GX24-3762

IBM

3262 Printer Models 3

and

13 Trouble Report

Form, GX24-3749

IBM

3268 Printer Models 1

and

2 Operator's Trouble

Report Form, GX27-2937

IBM

3275/3277 Trouble Report Form, GX23-0202

IBM

3276/3278/3279 Problem Report Form, GX23-0201

IBM

3284/3286/3288 Trouble Report Form, GX23-0204

IBM

3287 Printer Models 1

and

2 Operator's Trouble

Report, GX27

-2923

IBM

3287 Printer Models

1C

and

2C

Operator's Trouble

Report Form, GX27-2931

IBM

3289 Line Printer Models 1

and

2 Operator's

Trouble Report Form, GX27-2922

IBM

4250 Printer Trouble Report Form, GX33-l503

•

Other

publications

you

may

need

are:

3270 Facility Error Recognition System

(FERS)

Service

Aid

Description, G229-703l

OS/VS

Display Exception Monitoring Facility (DEMF)

User's Guide, GC34-2003

Network Problem Determination Application Error

Messages Manual, SC34-2012

Network Problem Determination Application Terminal

Use

Guide, SC34-2013

DOS/DIGS User's Guide, G229-7030

OS/GIGS User's Guide, G229-7029.

Problem

determination

procedures

for

the

IBM

3271

and

3272

Control

Units,

IBM

3275

and

3277

Display

Stations,

and

IBM

3284, 3286,

and

3288

Printers

are

described

in

the

IBM

3270

Information Display System: Problem Determination Guide,

GA27-2750,

and

are

purposely

pot

included

in

this

publication.

Problem

determination

procedures

for

an

IBM

3276

Control

Unit

Display

Station

with

its

attached

devices

are

described

in

the

IBM

3270 Information Display System: System Problem

Determination for 3276 Control Unit Display Stations,

GA18-2042,

and

are

purposely

not

included

in

this

publication.

Preface

Vll

Contents

Section

1.

Operator

Information

1-1

Introduction

1-1

3274

Diskettes

1-3

Care

of

Diskettes

1-4

Diskette

Shipping

and

Receiving

1-6

Diskette

Long-Term

Storage

1-6

Inserting

a

Diskette

into

a 3274 Model

lA,

lB, lC,

ID, 2lA, 2lB, 2lC, 21D,

31A, 31C,

or

3ID

1-6

Removing a

Diskette

from a 3274 Model

lA,

lB,

1C,

1D,

21A, 2lB, 2lC, 21D,

31A, 31C,

or

3ID

1-11

Inserting

a

Diskette

into

a

3274

Model 41A, 41C,

or

41D

1-12

Removing a

Diskette

from a 3274 Model 41A, 41C,

or

41D

1-14

Inserting

a

Diskette

into

a

3274

Model

51C

or

61C

1-15

Removing a

Diskette

from a

3274

Model 51C

or

6lC

1-17

3274

Operator,Panels

(Figures

1-7

through

1-15)

1-18

3274

Encrypt/Decrypt

Feature

1-35

Battery

Replacement-Models

lC,

21C,

3lC,

4lC, 51C,

and

61C

1-36

Entering

a

Master

Key Code

1-38

Verifying

the

Master

Key

Code

1-41

Encrypt/Decrypt

Feature

Test

1-43

3274 Dial-Up Telephone

Facilities

1-47

DialOperation

1-47

Dial

Operating

Procedures

1-49

Sending Message

Data

to

the

Host

System

1-49

Receiving Message

Data

from

the

Host

System

1-53

/3

Test

(Status

Summary Display Test)

1-57

Section

2_

Problem

Determination

2-1

Introduction

2-1

Overview

of

Subsystem

Problem

Determination

2-2

Problem

Determination

Levels

2-2

Problem

Determination

Facilities

2-3

Start

Here

to

Isolate

Your

Subsystem

Problem

2-4

Preliminary

Checks

2-4

Symptom

Table

2-5

3299

Service/Replacement

Procedure

2-6

Problem

Determination

Procedures

2-7

Contents

IX

Figures

1-1.

IBM

3274

Control

Unit

Model

lA,

lB,

lD,

21A,

2lB,

2lD,

31A,

3lD,

41A,

or

41D

1-2

1-2_

IBM

3274

Control

Unit

Mode151C

or

6IC

1-2

1-3_

Diskette

in

Its

Gray

Protective

Envelope

1-5

1-4_

3274

Model

lA,

lB,

1C,

lD,

21A, 21B, 21C,

2lD,

31A, 31C,

or

3lD

Diskette

Reader

Enclosure

and

Diskette

Storage

Compartment

1-7

1-5_

3274

Model

41A, 41C,

or

41D

Diskette

Reader

Enclosure

and

Diskette

Storage

Compartment

1-12

1-6_

3274

Model

51C

or

61C

Diskette

Reader

Enclosure

and

Diskette

Storage

Compartment

1-15

1-7_

3274

Model

lA,

lB,

1D, 21A, 21B, 2lD, 31A, 31D, 41A,

or

41D

Operator

Panel

1-18

1-8_

3274

Model1C,

21C, 31C,

or

41C

Operator

Panel

without

the

Integrated

Modem

Feature

1-19

1-9_

3274 Model 31C

Operator

Panel

with

the

Integrated

Modem

Feature

1-20

1-10_

3274 Model 51C

or

61C

Operator

Panel

with

the

Digital

Data

Service

(DDS)

Adapter

or

X_21

Feature

and

with

the

Encrypt/Decrypt

Feature

1-22

1-11.

3274 Model 51C

or

61C

Operator

Panel

with

the

Loop

Attachment

Feature

1-24

1-12_

3274 Model 51C

Operator

Panel

with

the

1200-bps

Integrated

Modem

Feature

or

External

Modem

Feature

and

with

the

Encrypt/Decrypt

Feature

1-26

1-13_

3274 Model 51C

Operator

Panel

with

the

1200-bps

Integrated

Modem

Feature

and

with

either

(1)

the

Switched

Line

with

Auto

Answer

Feature

or

(2)

the

Nonswitched

Line

with

SNBU

and

Auto

Answer

Feature;

and

with

the

Encrypt/Decrypt

Feature

1-28

1-14_

3274 Model 51C

Operator

Panel

with

the

1200-bps

Integrated

Modem

Feature

and

with

either

(1)

the

Switched

Line

with

Manual

Answer

Feature

or

(2)

the

Nonswitched

Line

with

SNBU

and

Manual

Answer

Feature;

and

with

the

Encrypt/Decrypt

Feature

1-30

1-15_

3274 Model 51C

Operator

Panel

with

the.2400-, 4800-,

or

9600-bps

Integrated

Modem

Feature;

and

with

the

Encrypt/Decrypt

Feature

1-32

2-1.

IBM

3299

Terminal

Multiplexer

Configurations

2-51

2-2_

Sample

of

an

IBM

3274

Control

Unit

Problem

Report

Form

2-52

x

Section

1.

Operator

Information

Introduction

The

function

of

your

3274

Control

Unit

is

to

direct

all

communication

between

your

organization's

host

system

and

its

associated

display

stations

and

printers.

The

3274

and

the

attached

display

stations

and

printers

form a

cluster

of

devices

used

to

execute

your

organization's

applications.

The

3274 is

available

in

the

following models:

• Models

lA,

1B, 1D, 21A, 21B, 21D, 31A, 31D, 41A,

and

41D

are

attached

directly

to

a

host

system

and

can

control

up

to

32

devices.

• Models 1C, 21C, 31C,

and

41C

are

attached

to

a

host

system

through

a

communication

facility

and

can

control

up

to

32

devices. .

• Models 51C

and

61C

are

attached

to

a

host

system

through

a

communication

facility,

an

8100

Information

System

loop,

or

a

4331

Processor

loop.

The

Model 51C

can

control

up

to

12

devices;

the

Model 61C

can

control

up

to

16

devices.

Figure

I-Ion

page

1-2

shows a 3274 Model

lA,

1B, 1D, 21A,

21B, 21D, 31A, 31D, 41A,

or

41D. Models 1C, 21C, 31C,

and

41C

are

similar,

but

do

not

have

the

Power/Interface

rotary

switch

and

the

Local/Offline

indicator

installed

on

the

operator

panel.

(See

Figure

1-7

on

page

1-18

and

Figure

1-8

on

page

1-19.) A

3274 Model 51C

or

61C is

shown

in

Figure

1-2

on

page

1-2.

After

the

3274 is

set

up

or

installed

and

customized

(configured

for

your

installation),

you

will

normally

only

have

to

turn

on

the

3274

(with

the

correct

3274 system

or

load

diskette

loaded

into

the

diskette

reader)

to

prepare

it

for

operation.

Depending

upon

your

organization's

applications, however,

you

may

be

required

to

load

different

diskettes

for

different

system

applications.

Section 1. Operator Information

1-1

This

section

describes

the

handling

and

loading

of

the

3274

diskettes,

the

3274

operating

controls,

and

the

basic 3274

operating

procedures.

Details

that

are

special

to

your

organization,

however,

are

not

included.

Operating

procedures

that

are

unique

to

your

organization

are

provided

by

the

appropriate

person

in

your

organization

and

are

found

in

your

organization's

user's

guide.

3274

Diskettes

A

diskette

(shown below) is a

thin,

flexible

magnetic

disk

and

a

semirigid

protective

jacket

in

which

the

disk is

permanently

enclosed.

IBM

Diskette 1

_"r#-"-

Label

Disk

Semirigid

Protective

Jacket

(Black)

Warning:

Do NOT

try

to

remove

the

flexible

magnetic

disk

from

its

semirigid

protective

jacket

(black).

The

function

of

the

diskette

is

to

store

information

that

the

3274

(and

attached

3179G

or

3290 display) needs for

operation.

The

types

of

diskettes

associated

with

the

3274

are

the

system

diskette,

the

load

diskette,

the

feature

diskette,

the

language

diskette,

the

RPQ

diskette,

and

the

Encrypt/Decrypt

diskette.

The

system

diskette

is

the

diskette

that

you will

use

in

the

daily

operation

of

the

3274

if

you

do

not

have

a 3179G

or

3290

Section

1.

Operator

Information

1-3

display

attached.

This

diskette

contains

test

and

configuration

information

that

is

unique

to

your

organization.

For

example,

the

system

diskette

contains

information

that

describes

all

devices

attached

to

the

3274.

The

load

diskette

is

the

diskette

that

you

will

use

in

the

daily

operation

of

the

3274

if

you

have

a 3179G

or

3290

display

attached.

This

diskette

contains

test

and

configuration

information

that

is

unique

to

your

organization.

The

feature

diskette

and

the

language

diskette

are

used

to

customize

the

3274's system

diskette

after

the

3274 is

installed

or

set

up.

These

diskettes

are

not

generally

used

in

the

daily

operation

of

the

3274.

The

RPQ

diskette

contains

the

alterations

or

additions

to

the

functional

capabilities

of

the

3274

to

fulfill

your

unique

data

processing

requirements.

The

Encrypt/Decrypt

diskette

is used

to

install

the

Encrypt/

Decrypt

feature,

including

the

terminal

master

key,

in

3274

Models 1C, 21C, 31C, 5IC,

and

61C.

Care

of

Diskettes

When

not

loaded

in

the

3274

diskette

reader

enclosure,

a

diskette

should

be

stored

inside

the

diskette

storage

compartment

(Figure

1-3

on

page

1-5

and

Figure

1-4

on

page

1-7).

Though

not

very

fragile,

diskettes

can

be

damaged.

When

handling

the

diskette,

grasp

it

only

by

the

top

edge. See

Figure

1-3

on

page

1-5.

You

can

prevent

possible

damage

to

diskettes

if

you

observe

the

following

precautions:

• Do

not

fold

the

diskette

or

its

gray

protective

envelope

when

storing

it

in

the

diskette

storage

compartment.

• Do

not

try

to

clean

the

surface

of

a

diskette.

If

it

is

contaminated

(by

eraser

dust,

finger

prints,

spills,

or

1-4

cleaning

fluid),

discard

it.

Failure

to

do so

can

cause

the

3274

to

fail

and

to

require

service

before

your

operations

can

continue.

•

Never

write

on

a

diskette.

Pencil

lead

or

ink

can

contaminate

the

surface

and

cause

errors.

The

pressure

of

a

pencil

or

pen

point

can

also

damage

the

surface,

even

through

the

protective

paper

envelope.

•

Never

use

paper

clips

or

staples

on

a

diskette.

•

Never

place

heavy

objects

on

a

diskette.

Warped,

torn,

or

creased

diskettes

will

not

work

properly.

•

Never

expose a

diskette

to

direct

sunlight

or

to

excessive

heat.

•

Always

keep

diskettes

away

from

magnetic

fields

or

magnetic

materials.

•

Always

place

each

of

your

diskettes

in

its

gray

protective

envelope

before

storing

it. (See

Figure

1-3.)

A.

...

Hold

rr=~-;:======:::1

Here

o

__

I _---Jl

DiSKette

i"'--....

Gray

Protective

Envelope

Figure

1-3.

Diskette

in

Its

Gray

Protective

Envelope

Section

1.

Operator

Information

1-5

Diskette

Shipping

and

Receiving

Diskettes

should

always

be

shipped inside

the

original

shipping

container;

an

ordinary

envelope does

not

provide

enough

protection. Also, be

sure

to

label

the

package: DO NOT

EXPOSE TO EXCESSIVE HEAT

(temperatures

above 51.50 C

or

1250 F) OR DIRECT SUNLIGHT.

Upon

receiving

diskettes,

check

for damage

to

the

shipping

container

or

to

the

diskette.

Save

the

shipping

container

for

storing

the

diskette

and

for

later

shipment.

Diskette

Long-Term

Storage

Place

diskettes

in

their.

protective

envelopes,

and

store

them

in

the

following

environment:

•

Temperature:

10

0

to

51.50 C

(50

0

to

125

0

F)

•

Relative

humidity: 8%

to

80%

Before

using

a

diskette

that

has

been

exposed

to

temperatures

outside

the

above

environment

range,

allow

the

diskette

to

adjust

to

room

temperature

for 5 minutes.

The

diskette

can

be

removed from

its

shipping

container

while

adjusting

to

room

temperature,

but

should

be

kept

in

its

gray

protective

envelope.

Inserting

a

Diskette

into

a 3274

Model

lA, lB,

lC,

lD,

2lA,

2lB,

2lC,

2lD,

3lA,

3lC,

or

3lD

1.

Open

the

customer

access

door

(Figure

1-4

on

page

1-7).

2.

Open

the

diskette

reader

enclosure

door

by

pressing

the

latch

to

the

right.

1-6

Diskette Reader -.....

ULLJ

Enclosure

Diskette

in

Gray

Protective

Envelope

Customer Access Door

'Storage

Compartment

Figure

1-4.

3274

Model

lA,

lB,

lC,

lD,

21A,

2lls,

2lC,

2lD,

3lA,

3lC,

or

3lD

Diskette

Reader

Enclosure

and

Diskette

Storage

Compartment

Section

1.

Operator

Information

1-7

3.

Remove

the

diskette

from

its

gray

protective

envelope.

1-8

Place

the

diskette

protective

envelope

in

the

diskette

storage

compartment.

Diskette Reader

Enclosure

Door

Latch

4.

Insert

the

diskette

squarely

into

the

diskette

reader

enclosure,

with

the

label facing

right

as

shown.

Section

1.

Operator

Information 1-9

IBM 3274 User manual

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