Siemens SIPROTEC 6MD665, Manual

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Glossary
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6MD665 Manual
C53000-G1876-C103-3
TxTap
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Transformer Tap Indication
Topological view DIGSI Manager always displays a project in the topological view. This shows the hier-
archical structure of a project with all available objects.
Transformer Tap
Indication Transformer tap indication is a processing function on the DI by means of which the
steps of the transformer adjustment can be detected together in parallel and pro-
cessed further.
VD A VD (Virtual Device) includes all communication objects and their properties and
states that are used by a communication user through services. A VD can be a phys-
ical device, a module of a device or a software module.
VD address The VD address is assigned automatically by DIGSI Manager. It exists only once in
the entire project and thus serves to identify unambiguously a real SIPROTEC 4
device. The VD address assigned by DIGSI Manager must be transferred to the
SIPROTEC 4 device in order to allow communication with DIGSI Device Editor.
Combination matrix Up to 16 compatible SIPROTEC 4 devices can communicate with one another in an
Inter Relay Communication combination (IRC combination). Which device exchanges
which information is defined with the help of the combination matrix.
VFD A VFD (Virtual Field Device) includes all communication objects and their properties
and states that are used by a communication user through services.
Transient informa-
tion A transient information is a brief transient
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single-point indication at which only the
coming of the process signal is detected and processed immediately.
Metered value Metered values are a processing function with which the total number of discrete
similar events (counting pulses) is determined for a period, usually as an integrated
value. In power supply companies the electrical work is usually recorded as a metered
value (energy purchase/supply, energy transportation).
Time stamp Time stamp is the assignment of the real time to a process event.