Siemens SIMATIC NET PROFIBUS User Manual download pdf (Page 23)

Abbreviations, explanations

Term Meaning Explanation

BFOC Bayonet fiber optic con-

nector

Fiber-optic connector, ST-compatible

BT200 200 bus tester Hardware test device for PROFIBUS

CP Communication processor Interface module for communication tasks

CPU Central processing unit Central controller module, e.g. for SIMATIC S5/S7

DP Distributed I/O devices Input or output modules decentralized from the CPU

(central processing unit of the PLC).

The link between the programmable controller and the

distributed I/O devices is made via the PROFIBUS-DP bus

system.

EEC Extended environmental

conditions

Extended environmental conditions

Intrinsically safe — Ex safety measure according to DIN

EMC Electromagnetic compati-

bility

—

Ex Intrinsically safe protective

measure according to DIN

EN 50020

Relevant to designated modules, may

also be used in areas where there is a risk of explosion.

(Follow specifications!)

FC FastConnect Fast assembly system

FMS Fieldbus message specifi-

cation

Top partial layer of layer 7 for PROFIBUS; it covers the

functions protocol machine, PDU compilation and

coding/decoding and interpretation of the protocol data

element.

DTS Driverless transport system Moving, driverless machine parts

HCS Hard cladded silica Trademark of Spectran Specialty Optics

HMI Human-machine interface Operator control and visualization products/systems

at Siemens

IEC International Electro-

technical Commission

—

ILM Infrared link module Infrared network component

LAN Local area network —

FOC Fiber-optic cable —

OBT Optical bus terminal Network component for PROFIBUS

OLM Optical link module Network component for PROFIBUS

PA Process automation Protocol profile based on PROFIBUS-DP with intrinsically

safe transmission techniques in accordance with

IEC 61158-2

PCF Polymer cladded fiber Application for plastic fiber optic cables for large distances

PNO PROFIBUS

Nutzerorganisation e.V.

Organization for PROFIBUS users and suppliers

PROFIBUS Process fieldbus European fieldbus standard according to EN 50170

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