Campbell Scientific CR10 CR10 Measurement and Control - Page 138

SECTION

9.

INPUT/OUTPUT INSTRUCTIONS

PARAM.

DATA

NUMBER

ryPE

01:

2

2

2

2

2

4

4

4

Execution Time:

DESCRIPTION

Repetitions Hit

C

(-)

to

skip

repeat

of

excitation

Single-ended channel

for

first

measurement

Excitation Channel

Start frequency of

sweep (100'S

of Hz)

End frequency of

sweep (100'S

of

Hz)

#

Cycles

to

measure

(0

means none)

Delay before excitation

applied

(0.01

sec

units)

lnput

location

(nI,7

in

ms

FP

Multiplier

FP

Otfset

Intermediate

Storage:

1

location

*

Input configurations (Sect. 4.2):

Q=

'l

=

Q=

$=

t=

4=

$=

6-

f=

$=

5V logic level, rising edge

5V logic level, falling edge

low

levelac,

rising edge

low

levelac,

falling edge

02:

03:

Q4:

05:

06:

07:

08:

09:

10:

***

101

SDM-|NT8

***

FUNCTION

The

B

channel IntervalTimer (lNT8)

is a

measurement module

which

provides processed

timing

information to the

datalogger.

Each

of

the

8

input channels may be independently configured to

detect either rising

or

falling edges of either a low

levelAC signalof

a

5

V

logic

signal.

Each channel

may be independently

programmed.

See the

SDM-INTB

manualfor

detailed instructions and

examples.

PARAM.

DATA

NUMBER

TYPE

DESCRIPTION

Address

of

|NTS

*lnput

config; channels

8,7,6,5

"lnput

config; channels

4,3,2,1

*"Function;

channels

8,7,6,5

**Function;

channels

4,3,2,1

"**Averaging option

Loc

Mult

Offset

2.3 ms

+

1.65 ms/value +

averaging interual if used

(See Appendix

C

for

possible extra processing

time

for

higher frequency

signals.)

**

Function (Sect. 4.3):

Q

=

nOne

I

=

period

in

ms

2

-

frequency in Khz

time

since

previous channel's

edge in ms

time

since

channel

1

in

ms

counts on channel 2 since

channel

1,

linear interpolation

frequency in Khz (low

counts

counts on

Channel2

since

Channel

1,

no interpolation

**"

Averaging option (Sect. 4.4):

0

0-

XXXX

XXXX-

Average over execution interval

Continuous averaging

Averaging interval

in

ms,

XXXX>O

Capture all events until XXXX

edges of

channel

1 (O<XXXX,

eeee)

9999-

Test

memory

***

102

SDM-SW8A

***

FUNCTION

The

8

channel

SDM-SW8A Switch Closure

lnput

Module

is

a peripheralfor

measuring

up

to

8

channels of switch closure or

voltage

pulse

inputs.

Each channel may

be

configured to

read single-pole double-throw (SPDT) switch

closure, single-pole single-throw (SPST) switch

closure, or

voltage

pulse.

Output options

include counts, duty cycle, or state.

The

SWSA is addressed by the datalogger,

allowing multiple SWSA's

to

be

connected to

one

datalogger.

16

addresses are available,

but

for

most applications Campbell Scientific

recommends no more

than

4 SWSA's be

connected to one datalogger.

lf more

channels

are requested

than

exist

in

one module, the datalogger automatically

increments the address and continues to

the

next

SW8A.

The

address

settings

for

multiple

SWSA's must sequentially

increase.

For

example, assume 2 SWSA's with an address of

01:

02:

03:

06:

07:

08:

09:

2

4

4

4

4

4

4

FP

FP

9-14

Campbell Scientific CR10 CR10 Measurement and Control - Page 138

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