Campbell 21X Manual do Operador descarregar pdf (Página 44)

SECTION 3. INSTRUCTION

SET BASICS

nested

2

deep

while

the OR construction is

nested

3

deep.

Branching

and loop

nesting

starts

at

zero within

each subroutine

and

then

returns

to

the

previous

level after

returning

from

the subroutine.

Subroutine calls

do not

count as nesting

with

the

above

instructions.

They

have a

separate

nesting limit of

seven

(lnstruction

85, Section

12).

Any number

of

groups

of

nested

instructions

may be

used

in any

of the three Programming

Tables. The

number of

groups

is

only

by the

program

memory

available.

3.9 INSTRUCTION MEMORY

AND

EXECUTION TIME

The

standard 21X has 978 bytes

of

program

memory

available

fbr

the

programs

entered in

the

*1

,

*2,

and

*3

program

tables. Each

instruction

also

makes

use

of

varying

numbers

Input, Intermediate,

and

Final

Storage

The following

tables

list

the memory used

by

each instruction and the

approximate time

required

to execute the

instruction.

TABLE

3.9-1.

InpuUOutput

Instruction

Memory

MEMORY

EXECUTION

TIME

(ms)

PROG. MEASUREMENTRANGE

BYTES 1-4 or NA

5.*

11-14

15 38.0 + 19.2R

8.4 + 3.7R 5.5 + 2.4R

15 36.9

+

38.0R 7.8 +

6.9R

5.5 +

3.7R

15

0.2

+ 1.2R

20 38.0 +

(19.2

+ D)R

8.1

+

(4.4

+ D)R 5.3 +

(2.8

+ D)R

18 38.8

+

40R 10.7

+

7.5R 7.5 +

5.1R

18

41 .8 +

73.0R 10.5

+

13.1 R 7.6 + 7AR

18

41.2+

76.8R

10.6 +

16.2R 7.1 + 11.0R

20 38.1 +

(19.2

+ D)2R

8.1 +

(4.2

+ D)2R

5.3

+

(2.8

+ D)2R

19 76.7 + 149.6R 15.7

+282R 9.9+

16.7R

4 7.6

5.0

+

8.4R

7.9

+

7.0R

40.8 + 23.2R

39.2

+ 42.7R

0.4

+ 2.7R

'14.0

1.4

1200

0.3

10.5

1.0+D

0.54

to reset,

0.25 to load into location

R

=

No. of

Reps.

D

=

Delay

INSTRUCTION

INPUT

LOC.

1

VOLT

(SE)

R

2

VOLT

(D|FF)

R

3 PULSE R

4

EX-DEL-SE R

5 AC HALF

BR

R

6 FULL

BR

R

7

3W

HALF BR

R

8 EX-DEL-DIFF

R

9 FULL

BR-MEX

R

10

BATT.

VOLT

1

11

TEMP

(107)

R

12 RH

(207)

R

13 TEMP-TC

SE R

14 TEMP.TC DIF R

16

TEMP-RTD R

17

TEMP-INTERNL 1

18

TIME 1

19

SIGNATURE 1

20 PORTSET 1

21 ANALOG OUT 1

22

EXCIT-DEL 1

23 BURSTMODE

R

26

TIMER 1 or 0

101

SDM-|NT8 25

102

SDM-SW8

16

103

SDM-AO4 0

104

SDM-CD16 6

15

17

18

18

15

4

7

4

4

5

11

7.9 +

6.7R

7.8 +

8.5R

*

Range

5 uses

a 1 .67ms

integration

time; the other "slow integration"

ranges

(1-4)

use 16.67ms

integrations. Range

15

uses a 25ps integration

(ranges

11

-

14

use

250ps). The execution times for

instructions

using range

15 are faster

than those

given

for ranges

11

-

14

by approximately

225ps

per

for

sinole-ended

3-6

and 4 for

differential.

1 2 ... 39 40 41 42 43 44 45 46 47 48 49 ... 190 191

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