In-Situ Aqua TROLL 400 Modbus and SDI-12 Reference Guide - Manual (Page 20)

Name Command Response
Set Conductivity
Cell Constant
aXCKpd.d!
aOK<CR><LF> or
aERROR<CR><LF>
pd.d = cell constant
p = polarity sign (+ or -)
d = digits (1 to 7)
. = decimal point (optional)
Read Conductivity
Cell Constant
aXCK! apd.d<CR><LF>
pd.d = cell constant
Set Pressure Units
aXPUnnn!
aOK<CR><LF> or
aERROR<CR><LF>
nnn = the pressure units ID
Three digits are required.
Read Pressure Units
aXPU! annn<CR><LF>
nnn = pressure units ID
Set Level Units
aXLUnnn!
aOK<CR><LF> or
aERROR<CR><LF>
nnn = the level units ID
Three digits are required.
Read Level Units
aXLU! annn<CR><LF>
nnn = level units ID
Set Level Mode
aXLMnnn!
aOK<CR><LF> or
aERROR<CR><LF>
nnn = the level mode
Three digits are required.
Read Level Mode
aXLM! annn<CR><LF>
nnn = level mode
Set Specific Gravity
aXLGpd.d!
aOK<CR><LF> or
aERROR<CR><LF>
pd.d = specific gravity
p = polarity sign (+ or -)
d = digits (1 to 7)
. = decimal point (optional)
Read Specific Gravity
aXLG! apd.d<CR><LF>
pd.d = specific gravity
20