
April
2018
Pathfinder DVL Guide
Page 54
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Capture the data from the instrument by opening a log file in TRDI Toolz
.
You can do this by clicking the
icon and then entering a filename.
Send the following commands to the unit by copying them to the clipboard of any editor and pasting them
into TRDI Toolz
by typing Ctrl V:
CR1
BP1
;[set BX value in dm to 20% more than the water column depth]
BX00350
#BK0
EX00010
;[set the EA angle between Beam3 and forward centerline of the vehicle)
EA+13500
CF11110
;Output data format PD0 or #PDx with x different from 0
#PD0
&O1000
&N3FFC
; Turn recorder on
MR1
CK
CS
Press enter after the CS to start pinging.
Alternatively, you can download the commands by saving these into a text file and typing T in
TRDI Toolz.
This will open the Script Editor.
It is important to leave the system powered up after the command file is sent; otherwise, the &O and
&N commands will be lost (these are not saved in the flash). The ping rate will be very slow because writ-
ing the data to the recorder is time consuming. Try not to change depths quickly so the unit won’t have
trouble keeping up with at the lower ping rate.
After the test, you can download the data off the loop recorder by connecting to the Pathfinder and
opening a TRDI Toolz
session (see
). Then change the baud rate to 115200 by
entering the CB811 command. Then select the Tools menu and the Download Data option of this
menu. TRDI Toolz
will ask you what directory you want to store the data.
The process should be automatic from this point. There should be about 2MB downloaded from the re-
corder if it was full and it likely will be since the ensemble size is quite large with all the engineering data
included. The full data set should be about 92 ensembles. .
As previously mentioned in reference to the PA testing, if other devices are in the vicinity of the unit
and are suspected to be the origin of the data quality issue, then those devices should be isolated to the
greatest extent possible. It is best to power the device down or remove it from the area (at least 3m)
and then re-deploy using either one of the above set-ups. Recover and provide TRDI Field Service with
the raw binary (
PD0
) data.