IBM 5100 Communications Manual

Brand: IBM

Model: 5100

Type: Communications Manual

IBM

5100 .

. municatlons

Com

Manual

Reference

Lt)

Prefar,e

This manual explains

how

use

the communications

feature

with

the IBM 5100 Portable Computer.

understand this manual, you should

know

how

operate the 5100 using

APL

the BASIC language.

You

should also

familiar

with

communications concepts and

terminal operations.

First Edition (September

1975)

Related Publications

•

IBM

5100

BASIC

Introduction,

SA21-9216

•

IBM

5100

APL

Introduction,

SA21-9212

•

IBM

5100

BASIC Reference Manual, SA21-9217

•

IBM

5100

APL

Reference Manual, SA21-9213

•

IBM

5100

Communications Reference Card, GX21-9211

• Data Communications Primer, GC20-1668

Changes are continually made

the

specifications herein; any such change will be

reported

subsequent

revisions

technical newsletters.

form

-For

reader's

comments

provided

the

back

this publication.

the

form

has been removed,

comments

may be addressed

IBM

Corporation, Publications,

Department

245, Rochester, Minnesota

55901.

Comments

become

the

property

18M.

©Copyright

International Business Machines Corporation, 1975.

HOW

USE

THIS

MANUAL

NTRODUCTI

•

OPERATION

THE

COMMUNICATIONS

FEATURE.

and

Initializing

the

Communications

Program

Display

Screen and

Extended

Display

Transmitting

From

the

Keyboard

Receiving

Communications

Status

Line

Scroll

Edit

OPERATION

THE

KEYS.

ATTN

Key

Transmit

Receive

Edit

Shift

Key

CMD

Key

RESEND

EXECUTE

Key

HOLD

Key

Special

Function

Keys

Command

Character

Edit

Line

Delete

Shift

Lock

Tab

Set

Tab

Reset

Home

Write

(Option

Only)

OUT

Character

Copy

Display

Tab

Fast

Left

Fast

Right

Fast

Down

Scroll

Left

Scroll

Right

COMMUNICATIONS

COMMANDS

&AUTO

(Option

Only)

&CLOSE

(Option

Only)

~OPEN

(Option

Only)

&OUTSEL

~RATE

(Option

Only)

&SYSTEM

~TAPEIN

(Option

Only)

Contents

REVI

COMMANDS

AND

SPECIAL

FUNCTION

KEYS

Commands

Special

Function

Keys

MESSAGE

INPUT

AND

OUTPUT

DEVICES

Tape

(Option

Only)

3 Tape

Input

Tape

Output

Printer

Bypass

Function

(Print

Inhibit)

Composing

Messages

Offline

Transmit

Interrupt

STATE

INDICATORS

HOME

EDIT.

SCRL

XMIT

PROC

ERROR

CODES

Invalid

Tape Data

Overflow

(Option

Only)

Printer

Error

Recovery .

APPENDIX

INSTALLATION

INSTRUCTIONS

APPENDIX

SAMPLE

TAPE

COMMUNICATIONS

AND

PROGRAMS

Writing

BASIC

Programs

Tape

Writing

Other

Language Programs

Tape

Writing

APL

Functions

Tape

(APL.SV)

Sample

Functions

Sample Programs Using

the

~AUTO

Command

Sample

BASIC

Program

Sample

APL

Program

APPENDIX

TRANSLATION

CODES

Character Code

Chart

Function

Character Code

Chart

INDEX

Contents

iii

How

Use

This Manual

This

manual

organized

into

the

following

topics:

•

Introduction

describes

the

communications

feature.

• Operation

the Communications Feature

describes

how

load

and

initialize

the

program,

the

format

the

display

screen

and

extended

display,

how

data

trans-

mitted

and

received,

the

format

the

communications

status

line,

and

the

scroll

and

edit

operations.

• Operation

the Keys

describes

the

function

keys

used

during

communications.

• Communications Commands

describes

the

commands

used

during

communications.

•

Message

Input

and

Output

Devices

describes

the

function

the

input

and

output

devices

during

communications.

• State Indicators

describes

the

states

the

program

and

what

you

can

during

each

state.

•

Error

Codes

describes

the

error

codes

that

are

displayed

the

status

line.

• Appendixes

and

contain

installation

instructions,

sample

programs,

and

translation

code

charts.

After

reading

the

Introduction

and

the

Operation

the Communications Feature,

you

should

able

sign

with

remote

system,

use

the

IBM 5100

Portable

Computer

transmit

data

from

the

keyboard,

and

receive

data.

The

remaining

sections

the

manual

provide

you

with

detailed

explanation

5100

operations

during

communications.

With

the

Communications

Adapter

feature,

the

IBM

5100

Portable

Computer

transmits

data

and

receives

data

from

remote

system.

The

5100

appears

the

same as an

IBM

2741

Communications

Terminal

the

remote

system,

and

can

communicate

with

many

systems

that

support

the

2741

(start-stop

mode)

with

EBCD

(extended

binary

coded

decimal)

notation.

The

5100

communications

feature

allows

you

two

options,

T (tape

option)

(print

option).

When

you

seleetoption

T,data

can

entered

from

the

keyboard

tape

unit

and

limited-length messages

from

the

remote

system

can be

printed

and/or

written

tape.

When

you

select

option

all messages received

from

remote

system

can

printed

they

are received,

but

the

tape

unit

cannot

be used

for

input

output.

With

either

option

Tor

data

transmitted

and

received

displayed

the

display screen.

Introduction

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Operation

the Communications Feature

AND

INITIALIZING

THE COMMUNICATIONS PROGRAM

the

communications feature

installed

your

5100, you can

now

prepare

the

5100

for communications.

(Forcustomer

installation and checkout, see Appendix A.

Installation Instructions.)

,First,

start

the

5100

for normal language

operation

and

insert

the

tape cartridge containing

the

communications program

the

built-in

tape

unit. Enter

the

command

)MODE

COM

you

are using APL

UTI

L MODE

COM

you are using BASIC, and press EXECUTE.

The

5100

then

displays

the

options

available: Enter T if you

want

use

the

tape

units,

enter

you

want

long messages.

the

printer

not

installed,

the

options are

not

displayed and

option

selected automatically.

The communications program

now ready

be initialized using

the

§!SYSTEM

and §!RATE commands.

~SYSTEM

specifies

the

type

remote system you intend

communicate with so

the

5100

will use

the

correct

EBCD

translation; it also

specifies

the

error recovery. §!RATE (for

option

T only) specifies

the

communication

line rate

bits per second (bps). The

§!

entered by holding

down

the

CMD

key

and

then

pressing

the

alphameric 1 key. The SYSTEM and RATE commands are

entered from

the

keyboard following

the

§!.

The commands you use depend

how

you are using

the

communications feature and

the

system with which

you

are

communicating. For

the

correct

parameters

be entered with

the

commands for

your

system, see Communications Commands for §!SYSTEM and §!RATE.

After entering

the

commands, establish a line connection with

the

remote system.

you are using non-switched lines,

the

5100

online; however,

you are using

switched lines,

you

must dial

the

remote system

put

the

5100

online. Enter

the

appropriate sign-on for

your

remote system. The

5100

now

ready

communicate.

DISPLAY SCREEN

AND

EXTENDED DISPLAY

The display screen contains 16 lines, each

characters long. The

bottom

line

the

screen

the

status line, which contains information

the

status

the

communications operation. (For a description

the

messages

that

appear

the

status line, see Communica,tions Status Line.) The

line

the

screen (the line

above

the

status line)

the

line

which

data

displayed

transmitted

and

received; this

called

the

input

line. The remaining 14 lines, plus

the

extended

display, store

the

transmitted

and received data.

The

extended

display

an area

5100

storage where transmitted and received

data

stored. The approximate size

the

extended

display for each

5100

model

is:

5100 Model

Al,

Bl,

A2,B2,C2

A3,B3,C3

A4,B4,C4

Size

1K (K=1024 characters)

17K

33K

49K

Operation

the

Communications Feature 3

When data

entered

the

extended display and

the

extended display becomes full,

the

oldest line

deleted when a new line

entered.

Data

the extended display can be

thought

as a page

data lines. A line

contains the data between new-line

and/or

line feed function characters. A

message

contains

the

data between the

start

transmission and end

transmission function

characters and contains one

more lines. These function characters are transmitted

the

5100

and

the

remote system

control

the

length and spacing

the lines.

Normally,

the

first

characters

the

14 most recent lines

the extended display

are displayed

the

screen; however, by using

the

scroll keys, you can move any

part

the

extended display

the

screen.

TRANSMITTING FROM THE KEYBOARD

When

the

5100

online with a remote system, each character you enter from

the

keyboard

displayed

the screen and transmitted

the

remote system. When

you

enter

a line longer

than

characters, each additional character entered

displayed

position

and

all

data on the display screen moves one position

the

left. Pressing EXECUTE indicates the end

the

line and moves the data on the

display screen

one line and

the

right so

the

first character

each line

position 1

the

display screen.

RECEIVING

the

5100

receiving data, each character

displayed

the

screen

received. A line containing

characters

less

displayed exactly

received. Lines longer

than

64 characters are formatted into 64-character lines on

the display screen

they are received. When the end

transmission character

received,

the

format

the

longer lines changes and only the first

characters

each line are displayed. The part

the

lines

not

displayed

stored

the extended

display and can

moved

the

screen by using

the

scroll keys.

COMMUNICATIONS STATUS LINE

The

bottom

line

the

display screen

the

status line. Functions such

copy

display and HOLD may alter

the

format

the

status line. The status line returns

its normal format when

the

5100

goes

the

home state. The positions

the

status line indicate:

Position

1-5

17·27

28·40

41·51

53·56

and

Meaning

The number

the

character position

the

extended display

that

appears in position 1 on

the

display screen.

General status area.

Tape status area.

Printer status area.

State indicator.

Communication line status:

-t

line connection exists.

ot The Iine connection has been made.

The

5100

receiving.

0-+ The

5100

transmitting.

Line indicator:

least one

the

lines on

the

display screen

longer

than

characters, and the last part

the line

not

displayed.

SCROLL

arrow

(blank)

The last character

the

longest line displayed

the screen

position 64.

least one unused character position remains

the

right

the longest line

the

display screen.

During the scroll operation, you can display any part

the

extended display

the

screen. Normally,

the

first

characters

the

last 14 lines entered

the extended

display are displayed on

the

screen; this

the

home position

the

extended display.

Positions 1

5 and

the

status line are useful

scroll operations because

they

indicate whether any data

the

left

right

the

display screen (see

Communications Status Line).

Operation

the

Communications Feature 5

move

data

the

display screen, use

the

scroll keys, which are activated by

holding

down

the

CMD key

and

pressing a specific

numeric

key.

The

scroll keys

only

move

the

data

there

data

the

extended

display

be moved

the

screen.

The

scroll keys are:

Key

Function

Fast left scroll

Moves

the

data

the

display screen

positions

the

left.

Fast right scroll Moves

the

data

the

display screen

positions

the

right.

Fast

scroll Moves

the

data

the

display screen

lines.

Fast

down

scroll

Moves

the

data

the

display screen

down

14 lines.

Scroll left

Moves

the

data

the

display screen

one

position

the

left.

Scroll right

Moves

the

data

the

display screen

one

position

the

right.

The

following keys

perform

the

same

function

communications

they

in APL

BASIC language

operations:

•

Scroll

down

Moves

the

data

the

display screen

one

line.

Moves

the

data

the

display screen

down

one

line.

Pressing

the

home

key (CMD

and

alphameric 8) ends

the

scroll

operation

and

moves

the

data

the

display screen

the

home

position.

The

edit

key also

ends

the

scroll

operation

and

starts

the

edit

operation.

EDIT

During

the

edit

operation,

you

can

edit

the

data

the

extended

display,

it,

write it

tape,

compose

a message offline (see Composing

Messages

Offline).

The

keys used during

the

edit

operation

are activated by holding

down

the

CMD

key

and

pressing a specific alphameric key:

Key

Edit

Line

delete

Home

Write

(option

T only)

Function

Starts

the

edit

operation.

Deletes all

characters

the

input

line

the

right

and

the

cursor

position.

Prints

the

data

stored

the

extended

display

from

the

input

line

the

end

the

extended

display.

Restores

the

data

the

display screen

the

home

position in

the

extended

display.

Writes

the

data

stored

the

extended

display

tape

from

the

input

line

the

end

the

extended

display.

You

must

position

the

line

edited

the

input

line by using

the

scroll keys

before starting

the

edit

operation.

When

you

press

the

edit

key,

the

first

character

positions

each line are displayed,

and

the

cursor

position

During

the

edit

operation,

the

delete

and

insert

functions

and

the

backspace

and

forward space keys

operate

they

normally

during APL

BASIC language

operations.

you

press

the

backspace key

when

the

cursor

the

left edge

the

display screen (position

and

positions 1

the

status

line

not

indicate

00001,

all

the

data

moves

the

right.

you

press

the

forward

space key when

the

cursor

the

right edge

the

display screen (position 64)

and

arrow

displayed in position

the

status

line, all

the

data

moves

the

left. Positions

and

the

status

line indicate

whether

any

data

the

left

right

the

display screen (see Communications Status Line).

After

the

line

edited,

you

can

transmit

it by pressing

the

EXECUTE

ATTN key.

All

data

the extended display

following

the

edited

line

deleted. New

data

added

the

extended

display following

the

edited

line.

terminate

the

edit

operation,

press

the

EXECUTE, ATTN,

home

(CMD and

alphameric 8) key.

you

press

the

home

key

after

editing

complete,

the

displayed

data

returns

the

home

position,

the

edited

line

not

transmitted,

and

all

the

data

following

the

edited

line in

the

extended

display

deleted

explained

previously.

you

press

the

home

key before

any

editing

done,

the

displayed

data

returns

the

home

position

and

data

lost

from

the

extended

display;

therefore,

you

can

end

the

edit

operation

without

losing

any

data.

Operation

the

Communications

Feature

Operation

the Keys

The following keys perform

the

same functions

communications

they

APL

BASIC language operations:

•

ATTN

KEY

Scroll

Scroll down

Backspace (delete function)

Forward space (insert function)

The action

the

ATTN key depends

which communications operation

being

performed and whether

the

ATTN key

pressed with

another

key:

Transmit

When

the

5100

transmitting data from

the

keyboard, pressing ATTN sends an end

transmission character and ends

the

transmission. The

data

transmitted

not

printed

written

tape. The

5100

then

waits

receive

data

from

the

remote

system, and any

data

received

added

the

end

the

data

just transmitted. When

the

end

transmission character

received from

the

remote system,

the

data

transmitted and

the

data received will be printed

and/or

written

tape

one

message.

Receive

When

the

5100

receiving data, pressing ATTN sends a long space (receive

interrupt), and

the

5100

continues receiving until

the

remote system sends an end

transmission character. OUT

backspace U backspace T) characters are placed

the

received message

indicate a possible loss

data. When

the

remote system

ends its transmission,

the

5100

changes its state

home.

Edit

Pressing

the

ATTN key during an

edit

operation transmits

the

edited line and an

end

transmission character. This

the

same as pressing ATTN during transmit

operations.

you

press ATTN after a

command

entered,

the

command

processed.

Shift

Key

Holding down

the

shift key and

then

pressing ATTN stops

the

TAPEIN

AUTO

operation before

the

next transmission and opens the keyboard for input.

CMD

Key

Holding down

the

CMD

key and

then

pressing ATTN returns

the

5100

the

home

state. This key

only

be used

the

5100

cannot

be returned

the

home state

from

the

process (PROC) state by pressing only

the

ATTN key.

RESEND

When you are using

the

APL.SV translation with

the

~SYSTEM

command and

the

remote system transmits RESEND, you can interrupt

the

retry operations by

pressing ATTN while the

5100

receiving

the

characters RESEND.

EXECUTE KEY

During a transmit operation, pressing

the

EXECUTE key transmits the new-line and

end

transmission characters. During an

edit

operation, pressing the EXECUTE

key transmits

the

edited line and the new-line and end

transmission characters.

you press

the

EXECUTE key after a command

entered,

the

command

processed.

HOLD KEY

Pressing

the

HOLD key

any time during communications stops the operation

soon as possible and displays

the

characters HOLD

position 2

the

status

line. You can continue

the

operation

that

was stopped by pressing

the

HOLD key

again. When pressed with the

CMD

key,

the

HOLD key stops

all

operations

immediately and may require reloading

the

communications program.

SPECIAL FUNCTION KEYS

The

top

row

alphameric keys and several numeric keys have a special function

communications. Hold down

the

CMD

key and press

the

appropriate key

activate

the

special function, which

as follows:

Command Character

The command character

displayed

and identifies a communications command.

It can be entered only when

the

5100

the

home state;

any

other

state

the

command character

ignored.

Operation

Keys 9

Edit Q

The

edit

key starts

the

edit

operation

the

5100

the

home

scroll state.

change

the

data

the

input

line

the

display screen, use

the

backspace and

forward space keys and

the

insert and delete functions.

end

the

edit

operation,

press

the

ATTN

EXECUTE key

transmit

the

edited

line,

press

the

home

key.

Line Delete

During an

edit

operation, pressing

the

line delete key deletes

all

characters

the

input

line

the

right

the

cursor, including

the

character

the

cursor position.

Shift Lock

Pressing

the

shift lock key

once

locks

the

keyboard

upper shift. The

keyboard

remains locked

upper

shift until

you

press

the

shift

lock key again,

the

EXECUTE

ATTN key while

the

5100

online,

press

the

shift key

and

enter

an upper

shift

character.

the

last character

transmitted

was a lower shift character, pressing

the

shift lock

key transmits an upper shift

function

character

and

locks

the

keyboard

upper

shift.

the

last character

transmitted

was an upper

shift

character, pressing

the

shift lock key only locks

the

keyboard

upper shift;

upper shift

function

character

transmitted. When

the

keyboard

locked

upper shift, pressing

the

shift lock key transmits a lower shift function character and unlocks

the

keyboard.

When

the

keyboard

locked in upper shift, pressing

the

shift key with

the

last

character

transmitted

only unlocks

the

keyboard;

lower shift function character

transmitted.

Tab

Set

Pressing

the

tab

set key sets a

tab

the

cursor location;

tab

character

transmitted. Tabs

cannot

be set

beyond

position 132.

Tab Reset

Pressing

the

tab

reset key clears

the

tab,

any,

the

cursor position.

data

transmitted

when this key

pressed.

the

data

the

extended

display during an edit operation, press

the

key. Printing starts with

the

data

moved

the

input

line on

the

display screen and

continues through

the

last full line

the

extended display. (The last full line

the

line above

the

input line when

the

data

the

home position.)

Home

Pressing

the

home key during a scroll

edit

operation moves the displayed data

its

home position, which displays

the

first

characters

the

14 most recent lines

the

extended display. Pressing

the

home key also ends

the

edit operation

without

transmitting

the

edited line, and if

the

line was

not

edited, no data

lost from

the

extended display. You

can

also use

the

home key

remove the bypass function

(print inhibit), if it

active.

The:

bypass function

activated by the remote system

inhibit

output

from

the

5100

for security purposes.

ensure data security, you

should

not

use

the

edit

operation

the

~TAPEIN

command when the bypass

function

active.

Write

(Option T Only)

write

the

data

the

extended display

tape during

the

edit operation, press

the

write key. Writing starts with

the

data moved

the

input line

the display

screen and continues through the last full line

the

extended display. (The last full

line

the line above

the

input line when

the

data

the home position.)

order

write data

tape,

the

tape must have been previously marked and

the

tape file

opened for

output.

protect

the

data written on tape,

enter

the

~CLOSE

command

after

the

write operation

complete.

OUT

Character

Pressing this key displays

the

OUT character

backspace U backspace

the

input

line

the

display screen and also transmits it if

the

5100

transmitting.

Use

this key

escape from

the

quad

quote

(

) request for input when

the

5100

communicating with an APL system.

Operation

Keys

Copy Display (IJ

the

data displayed

the

screen, press

the

copy

display key. This key

performs

the

same function in communications as it does

APL

BASIC

language operations. During

the

copy

display function,

error

codes are displayed

the

left side

the

status line. These codes are described

the

5100

APL

Reference Manual

and

the

5100

BASIC Reference Manual.

Tab

["'---_0

Pressing

the

tab

key during

transmit

operations transmits a

tab

character and moves

the

cursor

the

tab

position

the

cursor

not

beyond

position 132.

there

tab

position

the

right

the

cursor,

the

cursor moves

position 132,

which

always

the

last

tab

position.

The

tab

character does

not

appear

the

message

the

display screen

the

extended

display. Thus,

a message with

tabs

edited and

transmitted,

blank characters are

transmitted

make

the

message

appear

contained

the

tabs. Pressing

the

tab

key with

the

cursor

beyond

position 132 has

the

same effect

pressing

the

spacebar.

Fast

Left

a scroll

operation,

pressing

the

fast left key moves

all

lines

the

display screen

positions

the

left if an arrow

displayed in position

the

status line.

Fast Right G

a scroll operation, pressing

the

fast right key moves

all

lines on

the

display screen

positions

the

right,

but

it will

not

move

the

data

beyond

position 1.

FastUp

[]

a scroll operation, pressing

the

fast up key moves

all

lines

the

display screen

14 lines. This key moves

the

data

up if

there

data

be moved

the

screen.

Fast Down

a scroll operation, pressing

the

fast

down

key moves all lines

the

display

screen down 14 lines. This key moves

the

data

down

there

data

be moved

the

input line.

Scroll Left 8

a scroll operation, pressing

the

scroll left key moves

all

lines

the

display

screen

the

left if there

isan

arrow

position

the status line. The lines

continue

move

the

left

this key

held down.

Scroll Right 8

a scroll operation, pressing

the

scroll right key moves

all

lines

the

display

screen

the

right

position 1

the

extended display

not

position 1 on

the

display screen. The lines

continue

move

the

right if this key

held down.

Operation

Keys

Communications

Commands

Communications

commands

modify

the

operations

the

5100.

Enter

the

commands

as follows:

the

HOME

state,

enter

the

command

character,

by holding

down

the

CMD

key

and

pressing

the

alphameric 1 key,

enter

the

command

keyword

and

any

parameters,

and

then

press EXECUTE. Include a

blank space

between

the

keyword

and

each

parameter

entered.

The

syntax

symbols used

the

communications

commands

are:

Symbol

{}

data

[]

parameters

Meaning

Braces indicate

that

one

the

required parameters must

entered.

The

data

specified by

the

lowercase letters

must

entered.

Brackets indicate

that

one

the

optional

parameters can

entered.

The

underscored

parameter

the

default

parameter

none

specified.

~AUTO

(OPTION T ONLY)

The

~AUTO

command

enables

the

5100

receive messages

that

are

too

large

for

the

extended

display.

The

syntax

the

~AUTO

command

is:

~AUTO

Using

the

~AUTO

command,

transmission

a m,essage

occurs

the

following

manner:

Start

execution

a user-written program, located

the

remote

system.

The

remote

system sends an

auto

response

text

the

last line

each

section

the

message.

3. After each section

the

message

written

and/or

printed,

the

5100

returns

the

auto

response

text

as a

complete

line

the

remote system

prompt

transmission

the

section

the

message. The

auto

response

text

not

printed

written

tape

part

the

received message.

4. Transmission ends when:

The

5100

receives less

than

four

lines.

You hold down

the

shift key and press ATTN.

c. A

tape

printer error occurs.

less

than

four

lines are received,

the

data

not

automatically written

printed so

that

error

messages are

not

printed

written

tape.

you

must

save this data,

start

the

edit

operation

and use

the

write

key.

~CLOSE

(OPTION T

ONLY)

The

~CLOSE

command

makes

the

tape

the

specified tape

unit

unavailable for

further

data

transfer and completes writing

the

data

output

file. You

must

use

the

~CLOS£

command

close an

output

tape,

data

may be lost

from

both

the

cartridge removed from

the

tape

unit

and

the

cartridge inserted. The

syntax

the

~CLOSE

command

is:

&CLOSE

JEBol

LE40J

£80

specifies

the

built-in

tape

unit

and

£40

specifies

the

auxiliary

tape

unit.

~OPEN

(OPTION T

ONLY)

The

~OPEN

command

makes

the

file

the

specified tape

unit

available

for

data

transfer. The

syntax

the

~OPEN

command

is:

IN, OUT,

ADD

specifies

the

type

tape

file:

•

specifies

that

messages will be

transmitted

from

the

tape.

•

OUT

specifies

that

messages will be

written

tape, starting

the

beginning

the

file. The messages

written

tape

are

determined

the

~OUTSEL

command.

OUT destroys

data

previously written

the

specified file even

no new

data

written

the

file.

•

ADD

the

same as

the

OUT parameter

except

the

messages are

written

following

the

last existing

data

the

file and always use

least

512

character

positions.

file number specifies

the

file number.

£80

specifies

the

built-in

tape

unit and

£40

specifies

the

auxiliary

tape

unit.

Communications

Commands

Note:

the

~OPEN

command

entered

without

parameters and any files are

open,

the

tape unit address and the

type

file open are displayed

this format:

I: DOD

DOD

I indicates input file, 0 indicates

output

file, and DDD indicates

the

tape unit

address.

For example:

E800:

indicates

that

an input file

open

the built-in tape unit.

&OUTSEL

The

~OUTSEl

command controls which lines are printed and/or written

tape.

the

~OUTSEL

command

not

entered,

all

data

printed

and/or

written. The

syntax

the

~OUTSE

L command

is:

&OUTSEL

{ALL}

- SYS

ALL

specifies

that

all

data transmitted and received

printed

and/or

written

tape.

SYS

specifies

that

only lines completed by

the

remote system are printed

and/or

written on tape. (A complete line

ended with a new-line character.) Lines

transmitted from

the

5100 and ended by pressing ATTN may also be printed

and/or

written (see

ATTN

Key).

you

not

want

the data printed,

turn

the

printer off.

iRATE

(OPTION T ONLY)

The

~RATE

command specifies

the

communication line rate

134.5

300 bits

per second (bps).

the

~RATE

command

not

entered,

the

rate

134.5. If

you

are using non-switched lines,

the

rate must be set when

the

characters

position

and

the

status line indicate 0

If you are using switched lines,

the

rate must

be set before

the

line connection

established. The syntax

the

~RATE

command

is:

~RATE

{

134.5}

300

Notes:

1. The remote system must support

the

selected rate.

2. Option P only supports

134.5 bps.

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IBM 5100 Communications Manual

IBM 5100 Communications Manual

IBM 5100 Communications Manual

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