Xylem System 5000 User Manual - Manual (Page 47)

Outputs
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a spreadsheet program. The extension may change if a new delimiter is specified within the
Advanced Logging Options.A general example of what the log file will look like can be seen by
pressing the Preview button.
Advanced Options
The Edit Options button allows access to more options available for each log file configuration.
The options include the addition of Task headers, the delimiter to use, and any file management
or archiving that is desired. These options are described in more detail in the Advanced Logging
Options section below.
The lower left area of the Log File Properties screen shows the current Tasks that will be logged,
their order, the rate of their logging, and any function that may be applied to their value.
Task Options
Tasks can be added, edited, and removed from the log file configuration with the options
provided here. Some options may be grayed out if a Task is not selected. Only selected Tasks
may be modified or deleted. Use the Add Task button to add an existing Task or the DATE or
TIME variables to a log file. The Remove Task button removes the selected Task from logging. Any
previously logged values will remain in the log file but new measurements will not be logged.
Task Priority
The priority of Tasks can be changed through use of the Move Up and Move Down buttons. The
order of the Tasks indicates the order in which they will be executed, from top to bottom. All
Task Inputs are run first, followed by all Task Outputs, both according to Task Priority. Move the
selected Task up one level. Move the selected Task down one level.
The Edit Task button allows additional processing functions to be performed on Task values.
The outcome of these functions do not affect the original Task values and only apply to the
values being logged.
Use
Most functions have a USE option defining the number of values that the selected function
should be performed on. If All is selected, all recorded values (up to the last 200) will be used
with the selected function. If Prev. n Measurements is selected (where n is any desired number),
the current value and previous n - 1 values are used. For example, if a running average of the
past hours worth of data is wanted and the Task is set to scan every 15 minutes, setting the USE
to Prev. 4 Measurements would properly accomplish this. If only the top of the hour should
compute the past hour’s average, setting the Log To File to a Timed Rate of an hour (01:00:00)
would achieve this.