Campbell Scientific CR10 CR10 Measurement and Control - Page 132

SECTION

9.

INPUT/OUTPUT INSTRUCTIONS

resistance

and

Ro

the

resistance

of

the

RTD at

0'C

(Sections 7.9 and 7.10).

PARAM.

DATA

NUMBER

TYPE

DESCRIPTION

2

Repetitions

4

Input location

of

Rs/Ro

4

Input location

of

result

FP

Multiplier

FP

Offset

Input locations

altered:

1

for

each

RTD

'

***

17

INTERNAL TEMPERATURE

***

FUNCTION

This

instruction measures the

temperature

("C)

of

a

thermistor

on

the

CR10 analog

board.

This

temperature

is

generally not adequate

for

use

as the

thermocouple

reference

temperature

(Section

13.4).

PARAM.

DATA

NUMBER

TYPE

DESCRIPTION

4

Input location number

for

temperature

Input locations

altered:

1

***

18

MOVE TIME

TO

INPUT

LOCATION

***

FUNCTION

This

instruction takes the current

time

in

seconds into

the

minute, minutes into the day,

or

hours into the year and does

a

modulo divide

(see lnstruction 46) on the time value with

the

number specified

in

the

second

parameter. The

result is stored

in

the

specified input location.

Entering 0 or

a

number which is greater than

the

maximum value

of

the time for

the

second

parameter

will

result

in

the actual time value

being stored.

PARAMETER

1

CODES

Code

Time Units

0

Seconds

into minute (maximum 60)

1

Minutes into current

day

(maximum

1440].

2

Hours into current

year

(maximum

8784)

01:

02:

03:

01:

02:

03:

04:

05:

01:

9-8

PARAM.

NUMBER

PARAM

NUMBER

DATA

TYPE

Input locations altered:

DESCRIPTION

Time

Code

Number

to

modulo

divide by


1

***

19

MOVE

SIGNATURE

INTO

INPUT

***

LOCATION

FUNCTION

This

instruction stores

the

signature of the

Only Memory (ROM) and user program

(RAM) into

an

input

location.

The

signature

is

a

result

of

the

CR10 PROM,

the

size

of

RAM,

the entries

in

the

*1

,'2,*3,

*A,

and

*C

Modes.

This

signature

is

not

the

same as

the

si

given

in

the

*B

Mode.

Recording the signature

allows detection of any program change or

ROM failure.

DATA

TYPE

DESCRIPTION

4


2

4

4

Input locations altered:

***

20

PORT

SET

***

FUNCTION

This

instruction sets or configures specified

control ports

(C1-C8).

On power-up, ports

default

to

input configuration (i.e., they

are

not

driven high

or

low

by

the CR10, and

can

be

used

to

read

the

status of an

extemal

signal

using Instruction

25).

When a port is

set

high,

low, pulsed,

or

toggled

by

this

instruction or

a

program

controlcommand, the

port

is

automatically configured as an output.

Ports can also be set using

the

*6

Mode or the

J

and

K

telecommunications commands.

the

ports MUST be configured as outputs

these

means of setting them

willwork.

The

option to configure

the pod

as an

output

is used

when

a

port must be configured as an output

without changing the state

of

the

port.

NOTE:

Voltages

in

excess of 5.5 volts

applied to

a

control port can cause

the

CR10

to

malfunction.

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