Campbell Scientific CR10 CR10 Measurement and Control - Page 69

Module

is

connected,

and

it is

not

full, address

1

will address that Storage Module regardless of

the

address

that

is assigned to

the

Module.

Address

1

would

be used

with

lnstruction 96 if

several Storage Modules with

ditferent

addresses were connected to

the

CRl0

and

were

to

be

filled

sequentially.

The Storage

modules would

be

configured

as

filland

stop.

When

the

lowest

addressed

Module was full

data would be written to

the

next lowesl

addressed Module, etc.

4.5.2

STORAGE MODULE

USE WITH

INSTRUCTION 96

When output to

the

Storage Module is enabled

with

lnstruction 96, the Storage Module(s) (see

4.5.1 for addressing

on

multiple

modules)

may

be either left with

the

CR10 for on-line data

transfer

and

periodically exchanged,

or

brought

to

the

site for data transfer.

USE OF

STORAGE

MODULE

TO

PICK UP DATA

The

CR10

is

capable

of

recognizing whether

or

not the Storage Module

is

connected.

Each

time

lnstruction

96

is executed and

there

is

data

to

output,

the

CR10 checks for

the

presence of

the

Storage

Modules.

lf one is not present,

the

CR10

does

not attempt to output data

to

it.

Instead,

the

CR10 saves the data and continues

its other operations without advancing the

Storage

Module

Pointer (SPTR, Section 2.1).

When

the

user finally does connect

the

Storage

Module to

the

CR10, two

things

happen:

1.

lmmediately

upon

connection, a

File Mark

is

placed

in

the

Storage Module Memory

following

the

last data

stored

(if

a

File Mark

wasn't

the

last

data

point already

in

storage).

2.

During

the

next execution

of

Instruction

96,

the

CR10 recognizes that

the

Storage

Module (SM) is present and outputs

alldata

between the SPTR and

the

DSP location.

The

File Mark allows the operator to distinguish

blocks of data from

different

dataloggers

or

from

ditferent visits to the field.

To

be certain that

the

SM has been connected

to the CR10 during an execution

of

P96, the

user can:

.

Leave

the

SM connected

for

a

time

period

longer

than

an

execution

interval OR

SECTION

4.

EXTERNAL STORAGE PERIPHERALS

o

Use

the

SC90 9-Pin Serial Line

Monitor. The

SC90 contains

an

LED

which

lights up during

data

transmission. The

user connects

the

SM

to the CR10 with

the

SC90 on

the

line and

waits for

the

LED

to

light.

When

the

light goes

off, data

transfer

is

complete

and

the

SM can

be disconnected from

the

CR10.

4.5.3

*8

DUMP

TO STORAGE

MODULE

In

addition to the on-line data

output

procedures

described above, output

from CR10

Final

Storage to the SM192 and SM716

can

be

manually initiated

in

the

*8

Mode.

The

procedure

for

setting up and

transferring data

is

as follows:

1.

Connect

the

CFllOKD Keyboard/Display (or

terminal) and

the

Storage Module in parallel

to

the

CR10 using

the

SC12

cable.

For

terminals, an SC32A

will be

needed.

See

Section

5

for

interfacing details.

2.

Key

in

the

appropriate commands

as

listed

in

Table

4.2-1.

4.6

*9

MODE

-

STORAGE MODULE

COMMANDS

The

*9

Mode is used

to

issue commands to

the

Storage

Module (from

the CR10)

using

the

CR1OKD

or

a

terminal/computer. These

"commands"

are

like

*

Modes for

the

Storage

Module and in some cases are directly analogous

to

the

CR10

*

Modes.

Command 7 enters

a

mode

used

to

review stored data, and

8

is used to

transler data

between

two Storage

Modules

connected to

the

CRl0.

The

operations with

the

Storage Module are not directly analogous

as

may

be

seen

in

Table

4.6-1

which

lists the commands

(e.9.,

when

reviewing data, #A advances to the

start of

the

next Output

Array

rather than to the

same

element

in

the

next array with the

same

lD).

When

*9

is keyed,

the CR10

responds:

09:01

1 is

the default address for

the Storage

Module

(Section

4.4.1).

lf

you

have more

than

1

Storage

Module connected, enter

the

address

of the desired

Storage

Module.

Address

1

will

always

work

if

only one Module

is

connected.

Key A and

the CR10

responds:

9N:00

Where

N

is

the

address which

was

entered.

You

may now enter any

of

the

commands

in

Table 4.6-1

(key

in

the command

number and

enter with

A).

Most

commands

have at least

one

response, advance

through

these and

return to

the

"9 command

state

by keying

A.

4-7

Campbell Scientific CR10 CR10 Measurement and Control - Page 69

Storage Module

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