Using the FrontEnd
Computer Configuration
For each computer listed in the Computer List(on the left
side of the main window), you can manually configure scan
parameters, to fine tune data acquisition. You can easily identify
which computers are active or inactive for real-time
monitoring.
Computer List View
To manually add a computer, use the Add Computer button on
the toolbar, or right-click any empty space on the computer view
and choose Add Computer from the context menu. To edit the
properties of an already added computer, you can select the
computer and then use the Computer Properties button on
the toolbar, or right-click the computer and choose
Computer Properties from the context menu.
Computer Toolbar
Both options(adding a computer or editing its properties) will
display a detailed configuration dialog box:
Computer Configuration Dialog
You can customize the following computer settings in the
General Tab:
-
IP Address: Configured IP address for the specified
computer.
-
Computer Description: A short description of this computer.
-
Item Name Delimiter: The separator character to use in the
fully qualified OPC name.
-
WMI Auth Username: Username to be used for authentication, if
needed.
-
WMI Auth Password: Password to be used for authentication, if
needed.
-
Read Timeout: Amount of time(in milliseconds) to wait for a
response from the computer.
-
Refresh Rate: Computer refresh rate in milliseconds.
-
General Health: Indicate if this computer will be in the system
health calculation.
-
Scan Active: Defines whether the computer will be monitored or
not.
For each health tag, two calculation ways are possible: by baseline
and threshold adjustment or using the sensibility adjustment.
Health calculation example
You can configure these options by two ways:
-
Condition based: Select the desired value manually. Select
Condition Based Bias Adjustment option and then manage
baseline and threshold boxes. Baseline indicates the desired
value of the tag while threshold is the desired tolerance for
it.
-
Sensibility based: The health calculation is made using the
real value of the tag and a multiplier. Select
Sensibility Based Adjustment and then, select the
desired multiplier using the multiplier bar.
These options are found in Health Calculation tab for
three different Performance Tags:
-
CPU Usage Adjustment: percentual CPU utilization. Default
baseline value is 30, while threshold default value is 70.
-
-
Memory Usage Adjustment: indicates the percentual memory
utilization. XRatel recommends the values 30 and 60 for
baseline and threshold respectively.
-
Disk Usage Adjustment: percentual disk usage. Baseline and
threshold defaults values are 40 and 80 percent
respectively.
The Reset to Defaults button resets all values to default
XRatel values.
Health Calculation Settings
After editing or adding the computer, just click on the OK
button to close the Computer Settings dialog and update
the computer settings. If you want to discard all changes, just
click on Cancel to close this dialog.
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