Echelon i.LON SmartServer 2.0 - Manual (Page 293)

i.LON SmartServer 2.0 Programmer’s Reference 17-10
Property Description
<network/channel/device/functionalblock/data point>. You can
rename a Virtual data point by providing its <UCPThandle> and
specifying the new <UCPTname> property to which the Virtual
data point is to be renamed.
<UCPTannotation> The type of Virtual data point, which may be Dp_In, Dp_Out, or
Dp_In_Out (undefined). This determines the icon used to
represent the Virtual data point in the SmartServer Web
interface.
<UCPThidden> A flag indicating whether the Virtual data point is hidden or
shown in the navigation pane on the left side of the SmartServer
Web interface. This property may have the following values:
0 – shown
1 – hidden
<UCPTlastUpdate> A timestamp indicating the last time the configuration of the
Virtual data point was updated. This timestamp uses the ISO
8601 format, which is as follows:
YYYY-MM-DDTHH:MM:SS.sssZPhh:mm
The first segment of the time stamp (YYYY-MM-DD)
represents the date the configuration of the Data Point was last
updated. The second segment (after the T): HH:MM:SS.sss
represents the time of day the configuration of the Data Point
was last updated, in UTC (Coordinated Universal Time).
UTC is the current term for what was commonly referred to as
Greenwich Meridian Time (GMT). Zero (0) hours UTC is
midnight in Greenwich England, which lies on the zero
longitudinal meridian. Universal time is based on a 24 hour
clock; therefore, an afternoon hour such as 4 pm UTC would be
expressed as 16:00 UTC. The Z appended to the timestamp
indicates that it is in UTC. It can be left out.
For example, 2002-08-15T10:13:13Z indicates a UTC time of
10:13:13 AM on August 15, 2002.
If it is not UTC, time shift has to be defined:
2008-02-28T09:59:53.660+01:00
<UCPTdescription> A user-defined description of the Virtual data point. This can be
a maximum of 201 characters long.
<UCPTuri> The name of the file on the SmartServer flash disk containing
the configuration of the Virtual data point. This property is
Virtual_Dp_Cfg.htm by default.
<UCPTformatDescription>
• The Virtual data point’s program ID; data type (SNVT,
SCPT, UNVT, UCPT, or built-in data type); and format
(e.g., SI metric or US customary if the type has multiple
formats. The format description is displayed in the
following format: