Campbell Scientific CR10 CR10 Measurement and Control - Page 64

Code

00

09

SECTION

4.

EXTERNAL STORAGE PERIPHERALS

Instruction

96

has

a

single parameter which

specifies

the

peripheral

to

send output

to.

Table

4.1-1 lists the output device codes.

TABLE

4.1-1. Output

Device Codes

for

lnstruction

96

and

*8

Mode

Device

Tape.

Data

transferred

in blocks of

512 Final Storage locations

Tape.

All

data since last output.

flnst.

96 onlyl

ADDRESSED

PRINTER

Printable ASCII

Comma delineated ASCII

Binary

PIN ENABLED PRINTER

Printable ASCII

Comma delineated ASCII

Binary

x

=

BAUD RATE CODES

0

300

1

1200

2

9600

3

76,900

7N

Storage Module N (N=address, 1...8)

7N--

Output

File Mark

to

Storage Module

N

80

To the

other

Final Storage Area

[nst.

96 only], new data since last

output

81

To

the other FinalStorage

Area

[nst.

96 only], entire active Final

Storage Area

The source of data

for

lnstruction

96

is

the

currently

active FinalStorage

Area as set by

Instruction

80

(the default is Final Storage Area

1

at

the

beginning of each program table

execution).

lf

the CR10 is using

the

9 pin connector

for

other

l/O tasks

when

lnstruction

96

is

executed.

the

output

request is put in

a

queue and

program execution

continues.

As

the

9-pin

connector becomes available, each device

in

the queue gets

its

turn.

An

output

request is not put

in

the queue

if

the

same device

is

already

in

the

queue.

The data

contained

in

the queue

(and which determine

a

unique entry) are the device, baud rate

(if

applicable), and

the

Final Storage Area.

When an

entry

reaches the top

of

the queue,

the

CR10 sends

alldata

accumulated since the

last

transfer to the device

up

to

the

location

of

the

DSP

at

the time the device became active.

The

most

efficient

use of cassette

tape

and

power is made with the CASSETTE TAPE

option to transfer

data

in blocks

ol 512

Final

Storage

locations.

(Data

is

always

written

in

equivalent

of

512locations.

lf

code 09 was

used, and there are

only

10

new values,

sending

this

data would include 502

null

characters.)

Option 09, transfer

any

new data, is used if

it

is

desired

to

run

the tape only at particular times

or

under certain

conditions

(the program

is

written so that 96 only gets executed when

these conditions

are

met).

When

96

finally

does get executed,

alldata

between the

TPTR

and DSP, including

a

final

block less than 512

locations, are written to tape.

Section 4.3 contains specifics

on

the cassette

recorder.

Note that tape operation

is

for

above

f

reezing temperatures only.

Printer output can be either pin-enabled

or

addressed.

However,

there is

not

a pin

specifically dedicated

to

print

enable.

When

a

pin-enabled print output

is

specified,

the

SDE

line,

which

is normally used

in

the addressing

sequence, is used as a print

enable.

This

allows some compatibility with

the

CR21,z'lx,

and CR7 dataloggers which have

a

Print Enable

line.

The pin-enabled print option

will

result

in

garbage being sent to

the

print peripheral if

an

addressed device

is

also connected to

the

CR10 (i.e., CR10KD, SM192 or SM716 etc.).

The

SDC99

Synchronous

Device Interface can

convert

a

print device to an Addressed

peripheral (Section 6.2).

The STORAGE MODULE

address

is important

only when using more than one Storage

Module,

1

is

a universaladdress

which

willfind

the

Storage Module

with

lowest number

address

that

is

connected.

lf a Storage Module

is not connected, the

CRlO will

not advance the

SPTR (Section 2.1) and

the

Storage Module

drops out

of

the

queue

until

the

next time

lnstruction

96

is

executed.

Section 4.5 contains

specifics

on

the

SM192 and SM716.

1x

2x

3x

4x

5x

6x

4-2

Campbell Scientific CR10 CR10 Measurement and Control - Page 64

lnstruction, Tape., CR21,z'lx

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