Campbell Scientific NL115 Ethernet Interface and CompactFlash Module - Manual (Page 12)

NL115 Ethernet and CompactFlash ® Module
4.4 CF Card Data Retrieval
Data stored on cards can be retrieved through a communication link to the
datalogger or by removing the card and carrying it to a computer with a CF
adapter. With large files, transferring the CF card to a computer may be faster
than collecting the data over a communication link. CF card-data retrieval is
discussed in detail in Section 7.4, CF Card Data-Retrieval Details.
Removing a card while it is active can cause garbled data
and can actually damage the card. Always press the
Initiate Removal button and wait for a green light before
removing card.
LoggerNet’s File Control should not be used to retrieve data
from a CF card. Using File Control to retrieve the data can
result in a corrupted data file.
5. Overview
The NL115 Ethernet/CompactFlash Module enables 10Base-T Ethernet
communication with the datalogger. It also has a slot for a Type I or Type II
CompactFlash (CF) card (3.3 V, 75 mA).
The NL115/CF card combination can be used to expand the datalogger’s
memory, transport data/programs from the field site(s) to the office, upload
power-up functions, and store JPEG images from the CC640 camera. Data
stored on cards can be retrieved through a communications link to the
datalogger or by removing the card and carrying it to a computer. The
computer can read the CF card either with the CF1 adapter or 17752
reader/writer. The CF1 adapter allows the PC’s PCMCIA card slot to read the
CF card; the 17752 reader/writer allows the PC’s USB port to read the CF card.
User-supplied CF adapters may also be used.
LoggerNet’s File Control should not be used to retrieve data
from a CF card. Using File Control to retrieve the data can
result in a corrupted data file.
5.1 Status LEDs
There is one red-green-orange LED (light-emitting diode) and two buttons:
Initiate Removal and eject. The LED indicates the status of the module. The
LED will flash red when the CF card is being accessed, solid green when it is
OK to remove the card, solid orange to indicate an error, and flashing orange if
the card has been removed and has been out long enough that CPU memory
has wrapped and data is being overwritten without being stored to the card.
The Initiate Removal button must be pressed before removing a card to allow
the datalogger to store any buffered data to the card and then power off. The
eject button is used to eject the CF card. Note that if the eject button cannot be
pressed, it may have been disabled by bending it to the right. Straighten and
press the eject button to eject the CF card.
CAUTION
CAUTION
CAUTION
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