Table of Contents
ii
C. SDI-12 Sensor Support .......................................... C-1
SDI-12 Command Basics ................................................................. C-1
Acknowledge Active Command (a!)......................................... C-2
Send Identification Command (aI!) .......................................... C-2
Start Verification Command (aV!) ............................................ C-2
Address Query Command (?!) .................................................. C-3
Change Address Command (aAb!) ........................................... C-3
Start Measurement Commands (aM!) ....................................... C-3
Stopping a Measurement Command ......................................... C-4
Send Data Command (aD0! … aD9!) ....................................... C-4
Continuous Measurement Command (aR0! … aR9!) ............... C-4
SDI-12 Transparent Mode ................................................................ C-4
Changing an SDI-12 Address.................................................... C-5
D. SGB3 Electrical Surge Protector .......................... D-1
SGB3 3-Line Surge Protector Specifications .................................. D-1
SGB3 3-Line Surge Protector Mounting and Wiring ...................... D-1
Figures
7-1. CS231 installation example with three external sensors and five
internal sensors .................................................................................6
D-1. SGB3 3-line surge protector ............................................................ D-1
Tables
r, Function, and Data Logger Connections .......................7
8-2. SDI-12 Addresses and Positions ........................................................ 10
C-1. Campbell Scientific Sensor SDI-12 Command and Response Set ... C-1
C-2. Example aM! Sequence .................................................................... C-3
r, Function, and Connections to the SGB3 and Data
CRBasic Examples
B-1. CR1000X Program for Reading CS230/CS231 with 15 Sensors ..... B-1
B-2. CR1000X Program Using Slow Sequence to Read CS230/CS231
with 20 Sensors ............................................................................. B-2
B-3. CR1000X Program Reading Metadata of CS230/CS231 with
15 Sensors ..................................................................................... B-4
B-4. CR1000X Program Reading Metadata and Measurements of
CS230/CS231 with 15 Sensors ..................................................... B-5