beautypg.com

107 sdm-csat3, 108 sdm-udg01, 109 sdmx50 channel select – Campbell Scientific CR23X Micrologger User Manual

Page 160: 110 sdm-group trigger, 113 sdm-sio4, 114 set time, 115 set sdm baud

background image

SECTION 9. INPUT/OUTPUT INSTRUCTIONS

9-26

*** 107 SDM-CSAT3 ***

FUNCTION
This instruction controls and receives data from
CSI’s three-dimensional sonic anemometer
(CSAT3). See the CSAT3 manual for
information on Instruction 107.

Input locations altered: 5 per repetition

*** 108 SDM-UDG01 ***

FUNCTION
This instruction is used to measure the UDG01
Ultrasonic Snow Depth Sensor using control
ports C1, C2, and C3. Air temperature is a
required input for Instruction 108.

PARAM.

DATA

NUMBER

TYPE

DESCRIPTION

01:

2

UDG01 SDM address
(Base 4)

02:

4

Input location number
for the air temperature

03:

4

Input location number
for the distance

04:

FP

Multiplier

05:

FP

Offset

Input locations altered: 1

*** 109 SDMX50 CHANNEL SELECT ***

FUNCTION
This instruction is used to manually select
probes on the CSI TDR Soil Moisture
Measurement System.

PARAM.

DATA

NUMBER

TYPE

DESCRIPTION

01:

2

SDMX50 Address
(Base 4)

02:

2

SDMX50 channel
number

Input locations altered: 0

*** 110 SDM-GROUP TRIGGER ***

FUNCTION
This instruction is used to synchronize the
measurements of up to 15 SDM sensors that
support the group trigger protocol. The data is
retrieved with the appropriate device specific
instruction. Instruction 110 does not have any
parameters.

*** 113 SDM-SI04 ***

FUNCTION
Instruction 113 communicates with the
SDM-SI04 serial input multiplexer. See the
SDM-SI04 manual for directions.

*** 114 SET TIME ***

FUNCTION
Instruction 114 can be used to set the CR23X
clock from values in input locations.

PARAM.

DATA

NUMBER

TYPE

DESCRIPTION

01:

2

Option code:
0

set time with
hr,min,sec with
values in 3 input
locations.

1

set time with
day,hr,min,sec
using 4 input
locations.

2

set time with
yr,day,hr,min,sec
using 5 input
locations.

02:

4

First Input location
number

Input locations read: 3 to 5, depending on
option

*** 115 SET SDM BAUD ***

FUNCTION
Instruction 115 may be used to set the SDM
communication rate. This may be necessary
when communicating over longer cable lengths.
The default bit period is 10 microseconds
(entering either 0 or 1 will result in this period).