Campbell 21X Instrukcja Operatora Pobierz pdf (Strona 48)

SECTION

4.

EXTERNAL

STORAGE

PERIPHERALS

External datf

storage devices

are

used to

provide

a

data transfer

medium that the user

can carry

from

the

test

site

tO

the

tab

and

to supplement

the internal

storage capacity

of the

21X, allowing

longer

periods

betvveen

visits to the

site. The

standard data

storage

peripherals

for the 21X

are

the

cassette

tape

(Sectiott

4.3)

and

the Storage

Module

(Section 4.4).

Output

to a

printer

or

related device

is also

possibte (Seption 4.5). These

peripherals

are connected

to

the 21X through

the I

pin

serial connector.

Data

output

lo

a

peripheral

device can

take

place

ON-LINE

(automatically,

as

paft

of the

21X's

routine

operation)

ol

it can

be

MANIJALLY

INITIATED. On-line

data

transfer

is accomplished

with

lnstruction 96

or

with

the

"1

Mode

(Section

4.1). Manual

initiation

is done in the

*8

or

*9

Modes

(Section

4.2).

Regardless

Qf

the method,

the

source

of any data

transferred

is Final Storage.

A modem

isSnother

type

of

peripheral

that can

be connected

to the 21X.

Communication

via

a

modem

(Telecommtlpications) is discussed

in Section

5.

The

21X output

data

to

multiple

peripherals

(i.e.,

a

tape

recorder,

modem, and

Storage

Module

could all

be

at

the same

time). However,

only one cassette

recorder and

only

one modem

may

be to

the

2lX at any

one

time. lt is

possible

to connect two

Storage

Modules, although

it

is seldom

The

21X tellwhether

or

not a 5M192

or 5M716

Storage

Module is

present.

When

lnstruction 96

or

*9

is used

Module is

send data

to one

of these

Storage

Modules,

the

21X will not send data

if the

Storage

connected

(Section

4.4.2).

4.1

DATA

TRANSFER

.

INSTR

96,

*4

MODE

On-line dataltransfer

is accomplished

with

Instruction

$6

entered

in the

datalogger

program.

T{re.4

Mode

is retained

from

earlier

soltware to

rtnaintain

compatibility

with existing

programs.

tfse only one

method

to enable

output.

lf u{ing

lnstruction

96, do

not enable

output

in thd.4

Mode.

4.1.1

TNSTRUOTION

96

Instruction

96

enables

output

to

external

storage

peripherals

Under

program

control'

This

instruction

rhust

be included

in

the

datalogger

program

for on-line

data

transfer

to take

place.

Instruction

96

needs to be

included

only

once in

the

program

tables,

and

should

follow the Output

Processing

fnstructions.

The suggested

programmirlg

sequence

is:

1.

Set

the

Putput

Flag.

2.

lf

you

v'iish

to

set

the

output array

lD,

enter

Instructfon

80

(Section

1 1).

3.

Enter tfle

appropriate

Output

Processing

Instructfons.

4.

Enter

Instruction 96 to enable

the on-line

transfer

of

Final Storage

data

to

the

specified

device.

lf outputting to

both

tape

and

a

Storage

Module or

printer

option,

lnstruction 96

must be entered

twice.

Instruction 96

has a

single

parameter

which

specifies

the

peripheralto

enable.

Table

4.1-1

lists the

output

device codes.

TABLE 4.1-1.

Output

Device Codes

for

lnstruction

96

CODE

DEVICE

00

Tape.

Data transferred

in blocks

of

512

Final Storage

Locations

lx

Printer,

Printable

ASCII

2x

Printer,

Binary

30

SM192/716

Storage

Module

31

Send

filemark to

SM192216

x

=

BAUD RATE

CODE

0

300

1

1200

9600

76,800

2

3

4-l

1 2 ... 43 44 45 46 47 48 49 50 51 52 53 ... 190 191

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