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Glossary
Chatter blocking
A rapidly intermittent input (for example, owing to a relay contact fault) is disconnected after a parameteriz-
able monitoring time and therefore cannot generate any more signal changes. The function prevents the
system from overloading in the event of an error.
Continuous Function Chart
The Continuous Function Chart (CFC) is a programming language. It is used for programmable logic control-
lers. The programming language Continuous Function Chart is not defined in the standard IEC 61131-3, but
represents a current extension of IEC programming environments. CFC is a graphic programming language.
Function blocks are linked to one another. This represents an essential difference from conventional program-
ming languages, where sequences of commands are entered.
Control display
The control display becomes visible for devices with a large display after pressing the Control key. The diagram
contains the switching devices to be controlled in the feeder. The control display serves for implementing
switching operations. Specification of this diagram forms part of configuring.
Data window
The right area of the project window visualizes the content of the area selected in the navigation window. The
data window contains for example, indications or measured values of the information lists or the function
selection for parameterization of the device.
DIGSI
Configuration software for SIPROTEC
Double command
Double commands (DPC – Double Point Control) are process outputs which visualize 4 process states at 2
outputs: 2 defined states (for example, On/Off) and 2 undefined states (for example, disturbed positions).
DPC
IEC 61850 data type: Double Point Control
Drag and drop
Copying, moving, and linking function, used in graphic user interfaces. The mouse is used to highlight and
hold objects and then move them from one data area to another.
Folder
This object type helps when structuring a project hierarchically.
Function group
Functions are brought together into function groups (FG). The assignment of functions to current and/or
voltage transformers (assignment of functions to measuring points), the information exchange between the
SIPROTEC 5, Operation, Manual
C53000-G5040-C003-9, Edition 06.2018
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