Campbell Scientific PC400 Datalogger Support Software - Manual (Page 28)

Section 4. The PC400 Main Screen
The Send Program step allows you to send a program to the datalogger. This
may be a program you created with Short Cut, Edlog or the CRBasic Editor or
a program supplied by someone else. If it is a mixed-array datalogger, and the
datalogger is already running a program when you first connect to it, you
should associate the .DLD file so that PC400 will use the labels for input
locations and final storage. Dataloggers with table-based operating systems
(TD, PakBus, and CRx000) will know their program if one is running and will
provide table definitions that contain the labels. If you don’t have a program
for the datalogger you can skip this step and send a program later from the
Clock/Program tab.
If you connected to the datalogger during the EZSetup Wizard, when you leave
the wizard it will ask if you wish to stay connected.
4.2.2 Clock/Program Tab
Once you’ve added a datalogger, you may use other buttons on the
Clock/Program tab to delete it, edit its settings, or add another datalogger.
You must start with the Clock/Program tab to access either of the other two
communication functions tabs. While connected on the Clock/Program tab, you
may also change the datalogger clock or send or associate a new program.
Note that the default Max Time On-Line setting for most communications links
is zero (“0 d 00 h 00 m”), which means that PC400 will never hang up until
you click Disconnect. For telephone links, the default Max Time On-Line
setting is ten minutes in order to reduce the possibility of inadvertent and
expensive long distance or cellular telephone charges. There are, however,
other links that can result in expensive connection charges, such as digital
cellular links using TCP/IP that charge by the byte. Leaving the datalogger
connected also uses battery power, so if the datalogger power supply is not
recharged from a reliable source, it may discharge its battery below safe levels.
Be sure, therefore, that you do not leave the datalogger connected beyond the
time necessary to do the tasks you need to do.
4.3 Monitor Data Tab
Once you’ve added and connected to a datalogger, you can monitor the values
stored in the datalogger. If a program was sent to or associated with a
datalogger, or if table definitions were obtained from a table-based datalogger,
PC400 will, by default, show the input locations or public variables that have
labels associated with them. An example of such a display from a CR1000 is
below.
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