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8 Configuring the Recorder
D03283R01.10 TESLA LITE User Manual 8-7
8.5 Channels and Triggers
The Channels and Triggers branch of the Navigation tree is where you define
the recorder’s input channels, calculated channels and triggers. It is significant
tool with a variety of views and displays to help manage complex recorder’s
configurations.
Channel
Grouping and
Naming
This section describes how the record handles channel names.
An effective way to organize the many channels available on the recorder is to
group them by the power system element they are monitoring. With the Con-
figuration Editor, you can identify each monitored element and use its name to
group and identify the analog, digital and calculated channels associated with
it.
For example, if you have a transmission line named #1, you can define an ele-
ment and name it “Line #1.” The channels associated with that element might
then be:
Line #1:Va
Line #1:Vb
Line #1:Vc
Line #1:Ia
Line #1:Ib
Line #1:Ic
External (digital) inputs can also be reasonably associated with the Line #1:
Line #1:EI:BRKR1_a
Line #1EI:21N_Trip
Calculated channels fit the model as well:
Line #1:W/V (watts and vars)
Line #1:Iseq (current channel sequence components)
Channel Types and Naming
Channel names consist of three parts: the Element Name, the Channel Type
and an optional Descripton field. These fields are combined to produce the full
channel name in the format:
Element:Type:Description
e.g. Line #1.EI.BRKR1_a
This is the name that will appear beside a channel when it is displayed in a
graph or a log. For example the recorder’s Event Log might contain this entry
for a change in state of a external input:
2005 Jan 12 20:44:33.672 Line #1.EI.BRKK1_a open.
Details on the channel name components are given in the following table.