Yokogawa Removable Chassis DX1000N - Manual (Page 32)

IM 04L41B01-05EN
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1.5 Audit Trail Function
Change-Settings Log and Setup Files When Recording (Memory Sampling) Is
Not in Progress
When you change the settings, the changes are logged in the change settings log and
the operation log. At the same time, a setup file is saved to the CF card. The date, user
name, and affected setup file name are recorded in the change settings log, which is
saved to the CF card.
For information about the display, see section 2.4.
Note
Make sure that the CF card is inserted when you change the settings. When the DX is unable
to save a setup file, it displays an error message, and you will be unable to finish the process of
changing the settings.
Logged Operations
Changes to the settings made in setting mode or basic setting mode are logged. Setup-
file loading and setting initialization are also logged.
How Setup Files Are Saved
• A setup file is saved to the CF card at the times listed below. This only happens if the
settings have changed. If a CF card is not inserted when the DX tries to save a setup
file, an error occurs.
• When you return from setting mode to operation mode
• When you switch from setting mode to basic setting mode
• When you exit basic setting mode
• The directory “SET0” is automatically created on the CF card, and a setup file (.PEL
extension) is saved.
• The file name is generated automatically.
File Name Description
Mddhhmma.PEL The date and time when the file was created
M
Month (1 to 9, X for October, Y for November, or Z for
December)
dd Day
hh Hour
mm Minute
a Last digit of the year (0 to 9)
If you change the settings consecutively within the span of
a minute, a letter indicating the setting-change order (A to Z)
appears instead of the last digit of the year.
Example: 30108150.PEL A setup file created at 8:15 on March 1
Viewing a Setup File
You can use the attached DAQSTANDARD application to view the setup file contents
that correspond to an operation log.
For operating instructions, see the DAQSTANDARD Viewer manual.