IFR FM/AM-1200A

IFR FM/AM-1200A

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[NOTE\

The

Question

Mark

("?")will

be

accepted

at

any

time

and

ignored

unless

it

follows

a

command.

This

allows

the

user

to

continually

interrogate

the

output

buffer

when

waiting

for

a

measure-

ment.

The Col on

(":")

is

a

general

delimiter

and

may

be

used

after

the

Period

or

Question

Mark.

Care

must

be

exercised

in

using

the

Period

or

Question

Mark

at

the

end

of

a command

as

they

may

change

the

interpretation

of

that

command.

The

following

ASCII

Characters

will

terminate

the

output

command

or

series

of

commands:

ASCI

I

Carriage

Ret

urn

(OD) -

CR

ASCII

Line

Feed

(OA) -

LF

NULL

Character

(

0)

- N L

When

the

FM/AM-1200S/A

is

the

assigned

talker,

the

EO!

line

will

be

set

when a

line

feed

(OA)

is

sent.

lNOTE\

The

user's

GPIB

controller

must

be

programmed

to

expect

an ASCII

line

feed

(OA)

character

as

the

input

string

termination.

5-12-8

ASCII

OUTPUT

COMMAND

DATA

FORMAT

All

spaces

will

be

ignored.

Below

are

some

examples

of

commands

which

are

valid.

RFF

=

100:

RFF?

RFFl

=

10:

The

above

commands

set

the

Reply

Identifier

Flag

which

caused

the

com-

mand

label

following

"RID=ON"

to

be

attached

to

the

response.

5-12-g

RETURN

DATA

FORMAT

The

returned

data

format

convention

is

similar

to

the

Output

Command

Data

Format

in

that

all

returns

will

be

packed

together

and

separated

by

ASCII

Colon(":")

delimiters.

The

number

of

responses

returned

is

determined

by

the

number

of

commands

transferred

in

one

block.

If

the

number

of

responses

required

causes

the

internal

response

buffer

to

overflow

by

being

larger

than

128

bytes,

only

the

responses

up

to

the

most

recent

delimiter

will

be

returned.

5-26

03

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