Campbell 21X Manual do Operador descarregar pdf (Página 104)

location

table.

l2

of

Instruction

23 in the

program

by 13

is the multiplier

and

14

the

SECTION

9. INPUT/OUTPUT

INSTRUCTIONS'

Bu rsUTelecommu

nications

Considerations

The

21X will not respond

to

attempts

to

enter

telecommunications

while

Burst

measu

rements

are in

progress.

lf the

Burst Measurement

instruction

is

encountered

while telecommunications

is in

progress,

the

destination

of

the data

determines

whether

or

not

the

instruction is executed:

Burst data

sent

to

input locations-

lf

the

Burst

instruction specifies that

Burst

data

be

sent to

input locations,

all

telecommunication

activity

will be

suspended.

After

the Burst

trigger

condition is

met and

all

Burst

measurements

made,

Telecommunications can

resume.

Burst data

sent to Serial UO

Port-

lf the

Burst

instruction

specifies that

Burst

data

be

sent

to

the serial

port (i.e.,

Storage

module),21X

program

execution will

pause

until

telecommunications

is exited.

During this

pause

telecommunications

(i.e.,

view

input locations,

Monitor

Mode

with

Term, etc.) can

continue. No

Burst

measurements are made

while

in

telecommunications

and

no Burst data is sent

to

the serial

port.

After telecommunication

has

ended,

datalogger

program

execution

will

resume

as

if

the

Burst instruction

were

just

executed.

PARAM. DATA

NUMBER TYPE

DESCRIPTION

2

Repetitions

(no.

of

channels)

2

Range code

(12-15)

2

1st

channel

for

analog

rneasurements

4

Option, 4 digit

code

ABCD

A Trigger

0

-

Trigger on

1st

analog

channel

1

-

Digital

trigger

on

single-ended

Channel

1

(1H)

2

-

Same

as

0, but

set

DigitalControl

Port

#1 high when

trigger

is

met, Low

offset

(to

the

calibration.

I

raw

data)

determined by

the

first

is

a

fixed value determined

by the

input range

lected. 15 through ln_2a.re

the raw

data.

Thus, the value

of the first

sent

(M1)

in millivolts is:

Mr

=

lzlls

(ls

-

1+)

The

measurdment

data

are sent

in the order that

the measureinents

are

made

(i.e.,

the

first

measuremerft

for

each

channel,

then the

second

measuremerft

for

each

channel,

etc.).

The

last

2

integers senf,

ln-t

and

ln correspond

to

13 and

14

and

are

the

iesults of the

final

calibration.

SCAN INTERVAL

Instruction 28

has

its

own scan interval

independent

of

the execution

interval

of the

program

table

in

which

it resides.

The resolution

of

the

clock

fiming

the

execution

interval

is

813

nanosecondb.

This scan

interual, entered in

Parameter

S

(in

milliseconds),

is

the

time

between eaQh

scan of the specified

channels

(i.e.,

if 4 chaf

nels

are

specified

in Parameter 1,

and the scadr

interval is 5ms,

then

the

4

measuremehts willbe

repeated every

Sms).

The minimurin

time that

is allowed

per

measurement

is

0.97ms.

The maximum

time

that is allow0d

per

measurement

is

50ms.

lf the

scan interval

entered does

not allow this much

time

per

meAsurement

(e.9.,

if

with 4 reps, an

interval less than 3.88ms

is

entered),

an error

code, E 61,

will

be

displayed when

the

program

is

compiled.

When

sending data

to the

serial

port,

the

rat$ at which the

data can be

transferred

inay limit the

scan interval

(e.9.,

at

9600 baud

the minimum

time

per

measurement

is

2.2ms).

02:

03:

o4:.

the raw serial

data

TION VALUES are

for

TO

MILLIVOLTS

11 and 12are

9-11

1 2 ... 99 100 101 102 103 104 105 106 107 108 109 ... 190 191

Comentários a estes Manuais

Sem comentários