Term / abbrevia‐
tions
Explanation
LLDP Link Layer Discovery Protocol (PROFINET)
max Maximum
min Minimum
MAC Media Access Control Address (PROFINET)
MIB Management Information Base (PROFINET)
MRP Media Redundancy Protocol (PROFINET)
MTBF Mean Time Between Failure
NC Not Connected
NDG Nudge, second driving prole
NFPA National Fire Protection Association
NMS Neutral motor interface
OSSD Output Switching Signal Device
Out Output
PC Personal computer
PDEV Physical Device (PROFINET)
PDF Portable Document Format
PE Protective Earth
PKW Parameter word (PROFIBUS, PROFINET)
PL Performance Level
PLC Programmable Logic Controller
PRI Primary
PZD Process status data (PROFIBUS / PROFINET)
PWM Pulse width modulation
RAM Random Access Memory
REF Reference
ROM Read Only Memory
RoHS Restriction of Hazardous Substances (certication)
RK Feedback contact (e.g. for light barrier)
SBIT Control bit of the function block logic
SEC Secondary
SELV Safety Extra Low Voltage
SIL Safety Integrity Level
SNMP Simple Network Management Protocol (PROFINET)
PLC Programmable logic controller
SR Switch Rail (pressure sensitive edge)
STS Super Torque Synchronous Belt (toothed belt prole)
STW Control word (PROFIBUS / PROFINET)
SW Software
TCP Transmission Control Protocol (PROFINET)
Trafo Transformers
TSW Technology control word (PROFIBUS / PROFINET)
TÜV German Technical Inspectorate (certication)
Appendices
A.5 Abbreviations
ATD4xxW for industrial applications
System Manual, 06/2022, A5E51901827B AA 347
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