Echelon OpenLNS - Manual (Page 404)

OpenLNS Programmer's Reference 367
points in permanent monitor sets.
Syntax precisionValue = object.Precision
Element Description
precisionValue The precision of the configuration
property value. This element has a
range between 0–17.
object The FormatSpec or ConfigProperty
object to be acted upon.
Data Type Integer.
Read/Write Read/write.
Added to API Prior to LNS Release 3.0.
ProgramId
Summary Contains the program ID of the FormatSpec object. The
program ID is stored as a unique 16-digit hexadecimal
number in the following format:
FM:MM:MM:CC:CC:UU:TT:NN.
Note: You may not use colons when writing the program ID.
For a device with a program ID of 80:00:01:01:28:80:04:02,
you can write 8000010128800402 in this property.
Each FormatSpec object references a type. OpenLNS uses the
ProgramId property in conjunction with the Scope property of
the applicable FormatSpec object to determine which
resource file contains the type’s definition.
For FormatSpec objects, the Scope property will only be used
to identify the correct type if the FormatType property is set
to lcaFormatTypeNamed (0), which indicates that the
FormatSpec object represents a user-defined type. In this
case, the user-defined type to use within the resource file
referenced by this property is identified by the FormatName
property. If the FormatType property is not set to
lcaFormatTypeNamed (0), OpenLNS will use the Index
property to determine the type associated with the
FormatSpec object.
The data stored in the ProgramId property of the
FormatSpec object varies, depending on the sort of object that
the FormatSpec applies to.
•
If the FormatSpec applies to a data point acquired
through a network variable that is using a standard type,
or to a monitor point that is being used to monitor a
standard network variable, the ProgramId property will
be set to 0000000000000000.
• If the FormatSpec applies to a data point acquired
through a network variable that is using a user-defined
type, or to a monitor point that is being used to monitor a
user-defined network variable, the ProgramId property