Instruction Manual

i.LON 100 Internet Server Programmer’s Reference

Property Description

Enter the <UCPTpointName> of the data point to be written to. The name must

begin with the following prefixes:

• NVL_ for an NVL data point

• NVC_ for an NVC data point

Note: The names assigned to NVL data points follow the naming convention

NVL_[NAME], where [NAME] represents that progammatic name assigned to the

NV when it was created with L

ONMAKER.

For example, if the progammatic name of the NV in LONMAKER is

nvo01Switch_001, the <UCPTpointName> would be NVL_nvo01Switch. You can

determine the progammatic name of an NV in L

ONMAKER by right-clicking it and

selecting Properties.

The name of the data point field whose value is to be read. This property should be

left empty if the data point is not a structure. If defined, the <UCPTvalueDef>

property will not be included in the <Result> parameter.

An alphanumeric string of up to 128 characters that describes the location of the

data point. This user-defined property is established when the data point is

created. You could use it to organize your data points by physical location or

device.

A timestamp indicating the last time the value of the data point was updated. This

timestamp is expressed in local time, with an appended time zone indicator that

indicates the difference between local time and Coordinated Universal Time

(UTC). 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 timestamp uses the following format:

[YYYY-MM-DD]T[HH:MM:SS.MSS]+/-[HH:MM]

The first segment of the timestamp [YYYY-MM-DD] represents the date. The

second segment (T[HH:MM:SS.MSS]) of the timestamp represents the local time,

expressed in hours, minutes, seconds and milliseconds. The third segment (+/-

[HH:MM]) represents the difference between the local time listed in the second

segment and UTC. This segment begins with a + or a -. The + indicates that the

local time is ahead of UTC, the - indicates the local time is behind UTC. Consider

the following example:

2002-08-13T10:24:37.111+02:00

This timestamp indicates a local date and time of 10:24 AM and 37.111 seconds, on

August 13, 2002. Because the third part of the segment reads +02:00, we know the

local time here is 2 hours ahead of UTC.

The value currently assigned to the data point.

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