APPENDIX F. FREQUENTLY ASKED QUESTIONS
F-2
How do I index or change the sign of a
parameter?
To indexing a parameter, press the F4 key.
Two digit (00) and four digit (0000) parameters
can also be indexed by pressing the “C” key.
Negative floating point numbers are entered by
typing the “-” key followed by the number.
What does redundant write mean?
EDLOG has detected that two instructions are
writing to the same Input Location. Writing to
the same location twice is valid but is often
done unintentionally. If writing twice
intentionally, ignore the warning.
What is an “Improper use of P80 warning”?
Normally P80 follows the instruction that sets
the Output Flag and is used to set the Array ID
or specify were data are stored. If P80 does not
immediately follow the instruction setting the
Output Flag, EDLOG generates this warning.
Using P80 in this manner has three
consequences:
•
The Final Storage file that EDLOG
generates may not correctly identify
how the array is divided.
•
EDLOG estimates of the amount of
storage used may be off.
•
Some dataloggers (21X and CR7) do
not support dividing arrays with different
destinations.
CSI_R, CSI_1, ... Input Location labels?
The expression compiler uses these locations
to store temporary values. These labels are
reserved. Do not use these labels in your
program.
Where did my expression labels go?
When you optimize, EDLOG removes any Input
Location labels that it does not find referenced
in the program or that do not have the Manual
Flag set. EDLOG does not evaluate
expressions as part of the optimization so
locations that are only referenced by an
expression will be removed. This is no cause
for concern as the labels are reallocated with
the next compile. The temporary labels CSI_R,
CSI_1, etc. are good examples of this.
When should I optimize?
Optimization removes all Labels that are not
referenced in the program or do not have the
manual flag set. It will move locations to
remove any unused locations. It will also check
and reapply the Read - Write flags. It will
update all direct references (where the
instructions specify an Input location) in the
program. Indirect references are not updated.
You do not need to optimize, but it can be
helpful it the Input Locations get cluttered after
numerous program changes.
What’s with these “INI” files!
EDLOG uses an EDLOG.INI file to remember
the datalogger type you used last. It also keeps
track of the program that was open when you
exited from EDLOG. It will reload these
automatically when EDLOG is restarted.
EDLOG looks for its INI file in the following
sequence:
•
Looks in the current directory
•
Looks in the directory where the
EDLOG.EXE file is located
EDLOG stops looking when it finds an INI file.
EDLOG updates the INI file it found when you
exit EDLOG. If EDLOG did not find an INI file it
creates one in the current directory.
Содержание PC208
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