Documentation HG G-73650ZD | English, Revision 05 | Date: 09.03.2017 | www.goetting-agv.com
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Chapter 8: USB Data Logging: Scope of the Data
8
USB Data Logging: Scope of the
Data
When a USB memory stick is inserted into the Control Unit (s. section 3.5.2 on page 39), the
Control Unit automatically starty to log driving data on it. Data logging being active is indi-
cated by the flashing LED ACT. The data is logged in the CSV (MS-DOS®) format. This writes
data line by line into a file and the different values in each line are separated by semicolon.
The Control Unit limits those files to have a maximum length of 6,000 lines. Afterwards the
Control Unit closes the actual file and automatically starts a new one. The file names com-
prise the current time, the file extension is
.txt
. At a timing of 60-70 ms each file contains
approx. 5 minutes of a drive.
ATTENTION!
As soon as there are more than 20 files on the stick the control unit automatically deletes
the oldest files in order to prevent the stick from becoming filled!
Note
As the stick receives data in short intervals it is important that it is fast enough. We e.g. suc-
cessfully used an USB 3.0 memory stick by SanDisc Ultrafit 16GB.
ATTENTION!
If the stick has to be removed while the Control Unit is powered on press and hold the but-
ton SW1 (below the stick) until the LED ACT turns off (approx. 5 Sek.)! (s. section 3.3 on
page 37) Do not press SW1 longer than 10 seconds because then the stick will be formatted
and all data erased.
When the LED ACT stops flashing the current file is closed safely and the stick ejected.
When switching the Control Unit off it also closes the file and the stick may be removed.