Apogee AC-421 Owner's Manual - Page 7

Browse online or download pdf Owner's Manual for Media Converter Apogee AC-421. Apogee AC-421 16 pages. Sdi-12 converter

SPREADSHEET TABLE OF MAJORITY OF SDI-12 COMMANDS

AC-421 SDI-12 Command Quick Reference
SDI-12 Command
(a = sensor
address)
?
a
aI
aV
aAx
aM, aM1, aM2 ...
aMC, aMC1,
aMC2 ...
aC, aC1, aC2
aCC, aCC1, aCC2
aD0, aD1,
aD2 ... ***
*Example command outputs taken using an Apogee SI-421-SS IR sensor
**Sensor manuals can be found online at:
***AC-421 automatically does display command with any measurement command
What sensor does
Queries sensor addresses
Confirm communication
Returns sensor information (e.g.,
sensor model, serial number,
firmware version, etc.)
Displays internal saved data
(e.g., calibration coefficients,
offsets, etc.)
Change sensor address to a new
value (x = 1-9 or A-Z)
Used to take a measurement
Used to take a measurement.
Data is returned with a check
character
Used to take a measurement
when more than one sensor is
used on the same data line
Used to take a measurement
when more than one sensor is
used on the same data line. Data
is returned with a check
character
Used to return recorded
measurements from the M!, C!,
or CC! commands
Returns current address for sensors on the data
Returns current sensor address
Varies, please consult your sensor's manual**
EX: 0I!  013Apogee SI-4210.62210
Varies, please consult your sensor's manual**
0D0!  0+1.72402r+09+1.01104e+07+82608.4
0D1!  0-2.92505e+06+23518-29598+6.2210
Sensor will return the value of the new address
Varies, please consult your sensor's manual**
Varies, please consult your sensor's manual**
Varies, please consult your sensor's manual**
Varies, please consult your sensor's manual**
Varies, please consult your sensor's manual**
https://www.apogeeinstruments.com/product-manuals/
SDI-12 Return*
line
Ex: ?!  0
EX: 0I!  0
EX: 0V!  00007
EX: 0A1!  1
EX: 0M!  00011
0M!  0
0D0!  0+28.04520
EX: 0MC!  00011
0M!  0
0D0!  0+28.23737BXE
EX: 0C!  000101
0D0!  0+28.00574
EX: 0CC!  000101
0D0!  0+28.19998Iee
See above examples