Specifications

Advanced Point Configuration
PlantScape Server and Client Configuration Guide 181
Using Auxiliary Parameters to Track Controller Alarm Limits
If you set the auxiliary parameter name to match the name of an internal point
parameter, then the internal parameter’s value will track the value in the
controller. If the internal parameter is changed, the value will also be written to
the auxiliary parameter’s destination address.
This is especially useful for keeping alarm limits in a controller synchronized with
point alarm limits. For example, if a name of AlarmLimit1 was given to an
auxiliary parameter, then the first alarm limit for the point would follow the
auxiliary parameter’s value.
Building Points Off-Scan
If you are adding points, and you do not want point processing (such as
algorithm or alarm processing) while you are implementing your system, you can
build your points “off-scan” by ensuring that the Scanning Enabled check box is
not checked as you define them with Quick Builder.
After completing your points configuration, you can call up the Point Detail
display for each point on Station (as described in “Changing Point Configuration
via Station Displays” on page 178), and use the Scanning and control enabled
check box under Services to enable scanning and control for that point.
Creating User-defined Data Formats
Data formats convert field values into values that are more useful for operators
and other applications.
You can create user-defined data formats for the following types of controllers:
• Allen-Bradley
•OPC Client
• Modicon
• Moore APACS
• Siemens S5 and S7
•Hitachi
• GE Fanuc Series 90
You can create:
• Unscaled formats, which converts (but does not scale) a field value before
loading it into the parameter.
With an unscaled format, you need to define the scaling for each parameter
that uses the format.
plscpcg.book Page 181 Monday, May 28, 2001 10:11 AM