List of Abbreviations
SIMOCODE pro
Abbreviations-2 GWA 4NEB 631 6050-22 DS 03
OSSD Part of the electro-sensitive protective equipment (EPSE) that is connected to
the controller and switches to the OFF state when the sensor component
responds during the specified operation.
PCS Process control system
PD Programming device
PDM Process device manager
PELV Protective extra low voltage
PFD Probability of failure on demand: Probability of a dangerous failure of a safety
function when needed
PFHD Probability of dangerous failure per hour: Mean probability of a dangerous
failure per hour
PL Performance Level
PLC Programmable logic controller
ProdIS
Product information system
PTC Positive temperature coefficient (resistance dependent on temperature)
PZ Pozidriv
SELV Safety extra low voltage
SFB System function block
SFC System function
SIL Safety Integrity Level
TC Torque closed
Th Thermistor
TM Temperature module
TO Torque open
TPF Test position feedback
UC Universal current
UM Current/voltage measuring module
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