that there are numerical parameters (e. g. overcurrent thresholds) and parameters
which hold one option out of a selection list. These select options can either be xed
values, or they can be a signal (so that during run-time, the actual parameter value
equals the state of the assigned signal).
• Some parameter properties depend on the value of particular other parameters. For•
example, the “device planning” parameters (in the [Device planning] menu, see ╚═▷
“2.8 Device Planning”) do not only activate or deactivate protection functions but
also control the visibility of their related parameters.
Some parameters depend on others not only with respect to visibility, but also
default values and/or available value ranges.
Direct Commands
• Direct Commands are part of the “menu tree”, just like a setting parameter, but•
they are meant to be executed immediately. Therefore Direct Commands are NOT
part of a *.WiPara parameter le.
Signals
• Signals are run-time states, i. e. depend on the result of a protection function or on•
the state of a Digital Input.
Signals are part of the “menu tree”. They can all be found in the menu path
[Operation / Status Display].
• Some Signals are assessments of the state of the grid and the equipment.•
• Some Signals represent decisions that are taken by the device (e. g. a trip) based on•
the parameter settings.
• Many signals can be assigned to particular parameters. This means the function of•
this parameter depends on the run-time state of the signal. For example, a signal
can be assigned to the 2
nd
or 3
rd
DiggiMEC LED, so that the LED is lit as soon
as the assigned signal becomes “True”. (See also ╚═▷ “3.8.1.2 LED Conguration
(DiggiMEC)”.)
Input States (for a module input)
• Input States are special signals and are part of the “menu tree”. For every parameter•
to which a signal can be assigned, there is a related Input State. At run-time,
the Input State reects the current state of the assigned signal. This way the
dependencies in the behavior of a protection function can be traced.
There is the following naming convention: If a parameter to which a signal can be
assigned is named »Name«, then the related Input State has the name »Name-I«.
Counters, Values
• Values are more or less volatile data that are constantly kept up to date during•
run-time.
• The most common (and most important) type of Values is the set of Measured•
Values (e. g. the current values); we are going to use the term Measured Values also
for values that are derived from measured values by calculation, e. g. the ground
(earth) current value can be calculated from the phase currents). Of course, the
set of available Measured Values depends on the capabilities of the particular WIC1
variant.
46 WIC1 WIC1-1.0-EN-MAN
2 WIC1 – Introduction and General Information
2.9 Modules, Settings, Signals and Values