Campbell 21X Manuel de l'opérateur télécharger pdf (Page 135)

When

eitherlthe

DC112 or

RF

modem

options

are

specifie{

the

time

limit on the call

(without

a

correct respdnse)

specified

in

Parameter 3

is

timed from tile

start

of the

instruction and must

include the

daling

time.

lf the

correct

response

is not received within

the

time specified

in Parameter

3, the 21X

will

continue to

rtake calls.

The

2'1X

will

repeat the

calls

at

the

f{st intervalspecified

by Parameter

4

for the number

of retries

specified in

Parameter

5, after

whiclh the calls

will be

attempted at the

slow interval

specified

in Parameter 6.

Parameter 4 and 6 are

timed

from

the

start of

the Instruction.

The actualdelay

between

retries for bdth

the fast and

slow attempts

has a

random factor built

in,

which is

added

as an

offset to the

delay

specified.

The random factor

prevents

calls

f rom

ditferent

stations from

occurring at

the

same

time.

This otfset

will

range

betwepn

0 and

one

half of the delay

specified.

The resolution

of the

timer for these

delays

is thelexecution

interval of the table

in

which the aldrm

call

is initiated.

Parameter 21 specifies

which user flag

(1-8)

is to

be

used

as the

interrupt

disable

flag.

lf this

flag

is

set

high,

lhstruction

97

will not initiate an

alarm call.

lf

the

21X

is

in

the

process

of trying

to

get

throuQh

with an

alarm

call,

setting

the

interrupt dis{ble

flag

high will abort

further

attempts. lrFtruction

97

sets this flag

high when

an

alarm

calf

has

received the

correct response.

Instruction 9[

does

not set the

flag low; the flag

will

remain

fiigh until

set

low by the

program

or

external confrmand.

When the

flag is

set

low,

Instruction 97

is reinitialized.

I

Instruction 97

is unique

in having a variable

number

of

pBrameters.

Parameter 9

is

the

number

of stations,

if any,

in a

RF

link to the

base stationp

A non-zero

entry

(N)

for

Parameter 9 will

result

in N

parameters,

numbered 10 to

N+9,

in which

the

RF station

lDs

are

keyed.

The

RF station

lDs

are

the lDs

of

the

RF Modems

in the

path

from

the

initiating

datalogger

tp the base

station.

This excludes

the lD of thd

initiating

datalogger's

RF

Modem.

Parameter

10+N

(10

if 0 RF stations are

specified) is the

number of

digits, if any,

in the

phone

num$er.

There are

then as many

additional

pf,rameters

as

the

number

of

digits

entered.

Tle

phone

number

is

entered

1 digit

per parameler.

SECTION

12. PROGRAM CONTROL

INSTRUCTIONS

lf

the call is to

go

through

a RF

link to a

phone,

then the RF

Modem is specified

in Parameter

1.

A RF Modem must be

used between

the

DCSS

and

the

phone

line. See

the

PC208

manualfor

additional

interfacing

notes.

When the DC112

Modem

(Hayes

compatible

commands)

is

specified,

the

following

commands are

sent to the

modem

before the

phone

number: ATV0,

ATST=180,

and ATDT.

The first

command

causes

the

modem

to

respond with digits

rather than

words.

The

second

command causes

the

modem to wait

for

the carrier 180 seconds

after

calling or

answering.

The

third

command

causes the

Hayes to

dial

the number

that

follows the

command in

"Touch

Tones".

The 21X will not

accept the line

feed found

in some

Hayes

"compatible" modems.

PAR.

DATA

NO.

TYPE DESCFIIP:FION

01:

2 Modem option

and baud rate

code.

The

left digit specifies the

modem being

used

and the

right,

the baud

rate.

Modem

Baud

Rate

0-RFModem

0-

300

1

-

Direct

2

-

DC112

1

-

1200

2

-

9600

3

-76,800

2

Interrupt

disable

flag

(0-B)

4

Time limit

on call,

1

sec. units

4 Delay

between

fast retries, 1

sec.

units

Number of

retries at

fast

rate

Delay between

slow

retries, 1

min. units

Input

location to

store no. of tries

lD to send

Number

of

RF

Stations

(N)

Station

lDs

Number

of

Digits

(D)in

phone

number

Telephone

number by

single

digits

02:

03:

o4:

05:

06:

07:

08:

09:

10

to

N+9:

10+N:

2

4

4

4

2

4

2

N+11 to

D+N

+10

2

12-7

1 2 ... 130 131 132 133 134 135 136 137 138 139 140 ... 190 191

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