Campbell Scientific PC400 Datalogger Support Software - Manual (Page 40)

Section 4. The PC400 Main Screen
When Run Now is checked, the program is compiled and run in the
datalogger. All data tables on the CPU are erased. You have the
option of whether or not to erase data files stored on a card.
Run On Power-up
The file will be sent with the Run On Power-up attribute set. The
program will be run if the datalogger loses power and then powers
back up.
Run Always
Run Now and Run On Power-up can both be selected. This sets the
program’s file attribute in the datalogger as Run Always. The
program will be compiled and run immediately and it will also be the
program that runs if the datalogger is powered down and powered
back up.
Pressing Run Options to restart a stopped program in the CR1000, CR3000, or
CR800 displays a different dialog box. From the dialog box you choose
Restart Program
to begin running the selected program immediately. You can
also select an option button to determine whether or not the data tables
previously created by the program are erased or retained. Note that you cannot
change the Run on Power-up option when restarting a program.
CR1000, CR3000, and CR800 Series Dataloggers — A program
marked as “Run on power up” can be disabled when power is
first applied to the datalogger by pressing and holding the DEL
key. NOTE
Delete – Highlight a file and press the delete button to remove the file from the
datalogger’s memory.
Stop Program halts execution of the currently running datalogger program.
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