Siemens SIPROTEC 7SC805, Руководство пользователя

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Glossary
SIPROTEC, 7SC805, Manual
C53000-G1140-C380-1, Release date 05.2014
154
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).
MLFB
MLFB is the acronym of "MaschinenLesbare FabrikateBezeichnung" (machine-readable product designation).
It is equivalent to the order number. The type and version of a SIPROTEC 4 device are coded in the order
number.
MU
Merging Unit
MVU
Measured value, user-defined
Object
Each element of a project structure is called an object in DIGSI.
Object properties
Each object has properties. These might be general properties that are common to several objects. An object
can also have specific properties.
Off-line
In offline mode a link with the SIPROTEC 4 device is not necessary. You work with data which are stored in files.
On-line
When working in online mode, there is a physical link to a SIPROTEC 4 device which can be implemented in
various ways. This link can be implemented as a direct connection, as a modem connection or as a PROFIBUS
FMS connection.
OUT
Output indication
Parameter set
The parameter set is the set of all parameters that can be set for a SIPROTEC 4 device.
PPS
Pulse per second
Process bus
Devices featuring a process bus interface can communicate directly with the SICAM HV modules. The process
bus interface is equipped with an Ethernet module.