KP8, KP8F, KP32F
Operating Instructions, 11/2011, A5E03284305-02
127
List of abbreviations
B
CPU Central Processing Unit
DC Direct Current
DIL Dual-in-Line
DP Distributed I/O
ESD Electrostatic Discharge, the components and modules endangered by
such
EMC Electromagnetic Compatibility
EN European standard
ESD Electrostatic Sensitive Device
F-CPU Fail-safe Central Processing Unit
GND Ground
GSD Device master file
HF High Frequency
HMI Human Machine Interface
IEC International Electronically Commission
IRT Isochronous Real-Time
LED Light Emitting Diode
MTTR Meantime to Restoration
MRP Media Redundancy Protocol
MS Microsoft
PELV Protective Extra Low Voltage
PFD Probability of a dangerous Failure on Demand
PFH Probability of a dangerous Failure per Hour
PL Performance Level
RSTP Rapid Spanning Tree Protocol
SELV Safety Extra Low Voltage
SIL Safety Integrity Level
TIA Totally Integrated Automation
UL Underwriter’s Laboratory
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