6.6.3.1

Configure Data Logging

To edit the data log configuration, browse to SIGNALS page and select Configure Data Logging :

Start/Stop trigger buttons

are found at the top of this

window. Delete will

remove the file altogether.

Scroll to view the list of

filenames and the number

of records in each

Select filename to edit

Select interval to edit

Select signal from

pull-down menu

Figure 63–Configure Data Logging web interface window

Description of log file is

shown here. Click to edit.

Select Log Signals to

edit.

Select number of log records

and file save option.

Start Trigger and Stop

Trigger enable preset

configuration and

customization of the

beginning and end of

each event to be logged.

Data Log Files – this list shows the filename (up to 16) and the number of records associated

with each. Select the filename to display/edit the information in the adjacent window.

File Information – description and status of the log file is shown here.

Log Records is the number of records to be saved in the log file. Click on the value to edit. Log

Limit is displayed below and changes depending on the number of signals selected and the

number of records in the other log files.

Recommended size is up to seven signals and a maximum one thousand entries, as very large

log files may not be viewable. If the datalog screen comes up blank, the log is too large to be

displayed.

File Save Option enables a FIFO (first in first out) or “Stop when full” means of data collection.

Select Log Signals to edit from a list (max. 32) for the log:

Figure 64–Enable Signals for Data Logging web interface window

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Log Frequency – determines how often the data is collected. The default time interval is 60

seconds and the range is from ten to 86,400 seconds (24 hours). An interval may also be set

based upon when a selected signal changes by the Delta Level; click on the value to edit.

Figure 65–Log Frequency (web interface) window to enable time interval

Figure 66–Log Frequency (web interface) window to enable signal interval

Start Trigger – enables data collection to be started manually, by event or by time. For

example, select Customize to edit/build an equation from the list of operands (alarms and

signals) and operators (arithmetic and logic):

Mathematical operators:

+ = Add

- = Subtract

* = Multiply

/ = Divide

Logical operators:

& = AND

| = OR

! = NOT TRUE

= is EQUAL TO (compare for equality)

< is LESS THAN

> is GREATER THAN

( is OPEN PARENTHESIS (used with a

close parenthesis to set apart arguments to

a mathematical function)

) is CLOSE PARENTHESIS (see open

parenthesis; used to clarify the order of

operations)

Figure 67–Alarm Equation web interface window

Stop Trigger – enables data collection to be stopped manually, by event or by time. For

example, to specify a period of time when data collection is allowed, select Duration and click

on the values (Hrs, Min, Sec) to configure.

NOTE: After configuring a Data Log, select Submit Changes to accept (save) the changes.