Campbell Scientific PC400 Datalogger Support Software - Manual (Page 131)

Section 7. Short Cut Program Generator
The Advanced Output allows you to store data based on time, the state of a
flag, the value of a measurement or a data event. Be cautious in using more
than one check box, for the logic for the check boxes in the advanced mode are
inclusive—that is, they must all be true in order for any output to be stored. If
you were to choose to store rain only if both the time and the measurement
logic were chosen, then the very last measurement of rain—in the last 10
seconds—would have to have been greater than zero RIGHT AT 6:00 a.m.
Otherwise, both conditions wouldn’t be true and the value wouldn’t be stored.
The Output tab for dataloggers that can store data to a compact flash or
PCMCIA card has a check box which, when selected, will also store the data
table to a card if one is inserted in the datalogger. In addition, the Advanced
Output for these dataloggers allows for control of the number of records stored
in the table.
Table-based dataloggers that support output to an SC115 will have an SC115
CS I/O-to-USB Flash Memory Drive check box. When this check box is
selected, new data will be copied to an SC115 when it is plugged into the CS
I/O port of the datalogger.
The Table Name field is used to assign a unique name for the data table in the
datalogger. The # Records field is used to set up the size of the data table; that
is, the number of records that will be stored to the table before new records
begin overwriting the oldest records. A fixed number can be entered into this
field, or a -1 can be entered. If a -1 is entered, the table is set to auto-allocate,
which means the datalogger will assign all available memory in the datalogger
(or the card) to the table. If multiple tables are defined in the program, the
datalogger will allocate memory to all fixed-size tables first, and then divide
the remaining memory among any tables configured as auto-allocate. In doing
so, the datalogger attempts to set the size of the auto-allocated tables so that
they all fill at about the same time.
When you’ve configured all of your outputs, click Finish.
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