Participant
In an inter-device communication group, up to 16 SIPROTEC devices suitable for this can communicate with
one another. The individually involved devices are referred to as participants.
Participant Address
A participant address consists of the name of the participant, the international dialing code, the local dialing
code and the participant-specific telephone number.
Phone Book
Participant addresses for the modem connection are saved in this object type.
PICS
See Protocol Implementation Conformance Statement.
PLC
See Programmable Logic Controller.
PROFIBUS
PROcess Feld BUS, German Process and Fieldbus standard (EN 50170). The standard specifies the functional,
electrical and mechanical characteristics for a bit-serial fieldbus.
PROFIBUS Address
A unique PROFIBUS address must be assigned to each SIPROTEC device within a PROFIBUS network. A total of
254 PROFIBUS addresses per PROFIBUS network are available.
Programmable Logic
The programmable logic is a function in Siemens devices or station controllers, enabling user-specific func-
tionality in the form of a program. This logic component can be programmed by various methods: CFC (=
Continuous Function Chart) is one of these. SFC (Sequential Function Chart) and ST (Structured Text) are
others.
Programmable Logic Controller
Programmable logic controllers (PLC) are electronic controllers whose function is saved as a program in the
control unit. The construction and wiring of the device do not therefore depend on the function of the control.
The programmable logic controller has the structure of a computer; it consists of CPU with memory, installa-
tion/extension groups (for example, DI, AI, CO, CR), power supply (PS) and rack (with bus system). The periph-
erals and programming language are oriented towards the circumstances of the control system.
Programmable Logic Module
Modules are parts of the user program delimited by their function, structure and intended use.
Project
In terms of content, a project is the replication of a real energy supply system. In graphic terms, a project is
represented as a number of objects which are incorporated in a hierarchical structure. Physically, a project
consists of a series of directories and files containing project data.
Protection Communication
Protection Data Communication includes all functionalities necessary for data exchange via the protection
interface. Protection communication is created automatically during configuration of communication chan-
nels.
Glossary
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