April
2018
Pathfinder DVL Guide
Page 126
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Expert Environmental Commands
This section lists the expert Environmental commands. Commands that start with the # sign are consid-
ered “expert” commands.
>#E?
Available Commands:
#EC 1500 ------------------- Speed Of Sound [m/s]
#EE 0000010 ---------------- Rsrvd[4]; Cmd[1]; Rw/Nm[1]; Snsr Out[1]
#EH 00000,1 ---------------- Heading {heading;frame}
#EI +00000 ----------------- Roll Misalignment Angle [.01 deg cw]
#EJ +00000 ----------------- Pitch Misalignment Angle [.01 deg cw]
#EP +0000,+0000,1 ---------- Tilts {pitch;roll;frame}
#ER +0000 ------------------ Roll [.01 deg cw]
#ET 2100 ------------------- Water Temperature [.01 deg C]
#EU 0 ---------------------- Orientation [0=Switch,1=Up,2=Down]
#EV +00000 ----------------- Heading Bias [.01 deg cw]
#EY 0 0 0 0 0 0 0 0 -------- Dplr Param Override Src {c;d;h;p;r;s;t;u}
#E? ------------------------ Display #E-Command Menu
#EE - Environmental Data Output
Purpose
Controls output of specialized data types; controls whether a transform of velocity data to
raw or nominal beam is done with associated corrections in the case of the phased array
system.
Format
#EE abcdefg
The #EE command must be sent with the # sign.
Range
Firmware switches (see description)
Default
#EE 0000010
The default setting for this command is recommended for most applications.
Description
Bits “a” and “b” reserved for future use.
Bits c and d are reserved for future use.
Bit e controls the output of Environmental Command Parameters.
Bit e = one causes this data type to be output. See
Environmental Command Parameters Output Format
for a description of this data type.
Bit f signifies the use of the Phased Array transducer. For Phased Array systems, bit f controls the type of
correction performed on the beam velocity data. For phased arrays, setting bit f to one applies the follow-
ing corrections for all coordinate transforms of all ping types:
•
Speed of Sound correction to vertical component
•
Phase slope error due to vertical component.
Setting bit f to one also results in nominal 30° beam coordinate velocities output in the ensemble, and ap-
ply the system Beam correction matrix to correct for Beam pointing errors and hence output velocities in
nominal 30° Beam coordinate system.
Setting bit f to zero results in raw beam velocities output in the ensemble and no Speed of sound or Phase
Slope corrections applied.