Campbell Scientific NL115 Ethernet Interface and CompactFlash Module - Manual (Page 22)

NL115 Ethernet and CompactFlash ® Module
powered up with the NL115 attached and Ethernet cable plugged in. The IP
address can be found with the Device Configuration Utility’s Settings tab
under TCP/IP info. It can also be found using a CR1000KD attached to the
datalogger. Go to Configure, Settings | Settings, scroll down to IP Status and
press the right arrow.
An IP address obtained through DHCP is not static but is leased for a period of
time set by the network administrator. The address may change, if the
datalogger is powered down.
7.1.9 DNS
The datalogger provides a DNS client that can query a DNS server to resolve a
fully qualified domain name. When a DNS server is available, domain names
can be used in place of the IP address in the datalogger instructions.
7.2 File Formats
This section covers the different types of files stored on the CF card.
7.2.1 Data Files
The datalogger stores data on the CF card in TOB3 format. TOB3 is a binary
format that incorporates features to improve reliability of the CF cards. TOB3
allows the accurate determination of each record’s time without the space
required for individual time stamps.
TOB3 format is different than the data file formats created when data are
collected via a communication link. Data files read directly from the CF card
generally need to be converted into another format to be used.
When TOB3 files are converted into another format, the number of records
may be slightly greater or less than the number requested in the data-table
declaration. There is always some additional memory allocated. When the file
is converted, this will result in additional records if no lapses occurred. If more
lapses occur than were anticipated, there may be fewer records in the file than
were allocated.
The CardConvert software included in LoggerNet, PC400, and PC200 will
convert data files from one format into another.
7.2.2 Program Files
The CF card can be used to provide extra program-storage space for the
datalogger. Program files can be copied to the card while it is attached as a
drive on the computer. They can also be sent to the card using LoggerNet’s
File Control. They may also be copied from CPU memory to the card (or from
the card to CPU memory) using the CR1000KD.
7.2.3 Power-up Files (Powerup.ini)
Users can insert a properly-configured CF card into the NL115, cycle through
the datalogger power, and have power-up functions automatically performed.
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