IFR FM/AM-1200A

IFR FM/AM-1200A

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1~

OPEN

''COM1:96~0

,N

,8

,1

,CS

,OS, LF''

AS

#1

20

PRINT

#1,

"2"+CHR$(13)

30

INPUT

"CMD:

";CMD$

40

IF

CMD$=''QUIT''

THEN

160

50

PRINT

#1,

CMD$

60

IF

RIGHT$(CMD$,1)=''?''

THEN

GOSUB

120

70

IF

CMD$

=

''MTR1''

OR

CMD$

=

''MTR2''

THEN

GOSUB

120

80

IF

CMD$

=

"MDS''

THEN

GOSUB

120

90

IF

CMD$

=

''DVMAC''

OR

CMD$=''DVMDC''

THEN

GOSUB

120

100

IF

CMD$

=

"UOK"

THEN

GOSUB

120

110

GOTO

30

120

INPUT

#1,RET$

130

PRINT

RET$

140

IF

RET$=''**''

GOTO

120

150

RETURN

16(.!

END

4-11-2

RS-232

COMMAND

PROCEDURE

AND

DATA

STRUCTURE

All FM/AM-1200S/A

functional

commands and

data

information

are

trans-

ferred

over

the

RS-232

as

uppercase

ASCII

alphanumeric

character

strings

designed

to

replace

the

front

panel

controls.

All

input

commands

sent

to

the

FM/AM-1200S/A

are

placed

in

an

internal

queue

that

will

accommodate

up

to

128

bytes

of

data.

Command

strings

may

be

packed

together,

but

the

individual

commands

must

be

separated

by

a

colon":"

delimiter.

The

colon":"

may

or

may

not

cause

the

command

to

be

executed

immediately,

depending

upon

the

type

of

external

controller

being

used.

The

following

ASCII

Characters

will

always

ter-

minate

the

command

or

series

of

commands:

ASCII

Carriage

Return

(OD)

-

CR

ASCII

Line

Feed

(OA)

-

LF

Maximum

command

string

length

including

spaces

and

delimiters

is

128

characters.

If

the

command

string

exceeds

128

characters,

everything

up

to

the

most

recent

delimiter

will

be

accepted

and

the

rest

ignored.

All

spaces

will

be

ignored

except

when

using

the"!"

command.

Returned

data

to

the

external

controller

will

not

be

packed

together

in

a

string.

Instead,

each

set

of

data

returned

will

be

on

an

individual

line

and

sent

out

in

the

order

in

which

its

command

was

sent.

That

is,

the

first

"get"

instruction

sent

in

a

command

string

will

cause

the

returned

data

to

be

on

the

first

1

ine

of

the

output;

the

second

''get''

instruction

will

cause

the

returned

data

to

be

on

the

second

line

of

the

output,

and

so

on.

Data

inputs

that

are

out

of

specific

range

will

generally

default

to

the

minimum

values

or

initial

condition

values.

4-51

02

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