Campbell Measurement and Control Module CR10 Operator's Manual page 150

SECTION 9. INPUT/OUTPUT INSTRUCTIONS
of each of the 16 control ports. Up to 16 SDM-
CD16AC's may be addressed, making it
possible to control a maximum of 256 ports
from the first three datalogger control ports.
For each Rep, the 16 ports of the addressed
SDM-CD16AC are sent according to 16
sequential input locations starting at the input
location specified in parameter 3. Any non-zero
value stored in an input location activates
(connects to ground) the associated SDM-
CD16AC port. A value of zero (0) deactivates
the port (open circuit). For example, assuming
2 Reps and a starting input location of 33,
OUTPUT 1 through 16 of the first SDM-
CD16AC are set according to input locations 33
through 48, and OUTPUT 1 through 16 of the
second SDM-CD16AC are set according to
input locations 49 through 64. See the SDM-
CD16AC manual for detailed instructions and
examples.
PARAM. DATA
NUMBER TYPE
01: 2
02: 2
03: 4
*** 105 SDI-12 RECORDER ***
Instruction 105 allows data to be collected from
a SDI-12 sensor. A single Control Port is
connected to the SDI-12 sensor data line; the
SDI-12 ground should be connected to a "G"
terminal on the CR10 wiring panel. The CR10
may also be used as the 12 volt power supply
for sensors. If multiple SDI-12 sensors are
used, each sensor requires a separate
Instruction 105. Instruction 105 is only in
standard PROMs OS10-1.1 and OS10-1.2.
PARAM. DATA
NUMBER TYPE
01: 4
02: 2
03: 2
04: 4
05: FP
06: FP
Input locations altered: 0-9 (SDI-12 sensor
dependent)
9-18
DESCRIPTION
Reps (# of CD16AC
modules sequentially
addressed)
Starting Address (base
4: 00..33)
Starting input location
DESCRIPTION
ADDRESS (0-9)
COMMAND (Table 1)
PORT (1-8)
INPUT LOC.
MULT
OFFSET
Intermediate Locations required: 9
PARAMETER 1. ADDRESS
Enter the address of the SDI-12 sensor (0-9).
Non-standard addresses may be used entering
the appropriate ASCII code.
PARAMETER 2. COMMAND
Enter a number to select the command to be
sent to the SDI-12 sensor. Usually 0 is entered
to select the M command. The following
Standard SDI-12 commands are supported by
the CR10:
TABLE 9-6. SDI-12 Command Codes
ENTRY COMMAND DESCRIPTION
O M
1..9 M1..M9
10 V
11 I
The result of a M, M1-M9, or V command
sequence is numerical data, stored in an input
location. The response to the I command is
text information, which is written directly to Final
Storage regardless of the Output Flag's state.
The *7 mode of the datalogger cannot be used
with this type of data.
PARAMETER 3. PORT
Enter the CR10 control port connected to the
SDI-12 sensor data line. Any port 1-8 (C1-C8)
may be used. Default port is C8.
PARAMETER 4. INPUT LOCATION
Input location where the returned data is stored.
If multiple values are returned from the SDI-12
sensor they are stored in sequential input
locations beginning at the specified location.
ERRORS
If the CR10 receives either an incorrect
response or no response is received from a
SDI-12 sensor, the CR10 will retry the
operation. If, after the retries, a valid response
has not been received, the CR10 will store a -
99999 in the input location specified in
Parameter 4. Only the first location will be
Initiate Measurement
Additional
Measurement
commands specified
by the SDI-12 sensor
Initiate Verify
sequence
Send Identification