Campbell 21X Instrukcja Operatora Pobierz pdf (Strona 78)

SECTION

8. PROCESSING

AND PROGRAM

CONTROL

EXAMPLES

O4:

P54

01:

9

02:

12

03:

1

04:

11

05:

1

05:

P86

01:

10

06:

P70

01: 1

02"

2

Block Move

No. of Values

First Source

Loc Temo

i-8

Source Step

First

Destin.

Loc

[:Temp

i-9

]

Destination

Step

Do

Set

high Flag

0

(output)

Sample

Rep

Loc

l0smplav

O7'. P

End Table 1

In the

above example,

all samples for

the

average

are stored

in input

locations.

This is

necessary

when

an

average

must

be output with

each

new

sample. In most cases,

averages are

desired

less frequently

than sampling.

For

example,

it may

be necessary to

sample some

parameter

every

5 seconds and output

every

hour

an

average of

the

previous

three hours

readings.

lf all samples were

saved,

this

would

require

2160 input locations. The

same value

can

be obtained

by

computing an

hourly

average

and averaging

the

hourly

averages

for

the

past

three hours.

To do this requires

that

hourly

averages

be stored

in

input locations.

lnstruction

80

is

used

to

send the t

hour

average

to Input

Storage

and

again to send

the

3 hour

average

to

Final Storage.

Input Location

Labels:

1:AVG i-2

2:AVG i-1

3:AVG i

4:3 HR AVG

5:XX mg/M3

Table 1 Programs

Sec.

Execution

lnterval

Volt

(DIFF)

Rep

5000

mV

slow Range

lN Chan

Loc

[:XX

mg/M3

]

Mult

Offset

02: P92

01: 0

O2:

60

03: 10

03: P80

01:

3

02: 3

lf

time is

minutes into a

minute

interval

Set high Flag 0

(output)

Set Active Storage Area

Input

Storage

Area

Array

lD or location

Average

Rep

Loc XX mg/M3

SpatialAverage

Swath

First Loc AVG i-2

Avg Loc

[:3

HR

AVG

]

Set Active Storage

Area

Final

Storage

Area

Array lD

or

location

RealTime

Day,Hour-Minute

Sample

Rep

Loc

3 HR AVG

lf Flag

0

(output)

is

set

Then

Do

Block

Move

No.

of Values

First

Source Loc

AVG

i-1

Source

Step

First

Destin. Loc

[:AVG

i-2

Destination

Step

05: P51

01:

3

02:

1

03:

4

04: P71

01:

1

Q2: 5

06:

P80

01:

1

02; 25

07: P77

01: 22O

08: P7O

01:

1

02:

4

09: P91

01: 10

o2'. 30

10: P54

01: 2

02: 2

03: 1

O4: 1

05: 1

01:

01:

01:

02:

03:

04:

05:

06:

1

5

P2

1

5

3

5

10

0

11: P95 End

12: P End Table 1

8.2

RAINFALL INTENSITY

In

this example, the total

rain

for the

last 15

minutes is

output

only if

any

rain

has occurred.

The

program

makes

use of

the capability

to

direct the

output

of Output Processing

Instructions to Input Storage.

Every 15

minutes, the total rain is

sent

to

Input

Storage. lf

the

total is not

equal to

0, output is

8-2

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