FSV

Fail-safe substitute Values

HMI

Human-machine interface

ID

Identifier

LSB

Least significant bit

MNR

MonitoringNumber

MSB

Most significant bit

OA

Operator Acknowledgment

OPC UA PI

OPC UA Platform Interface

PI

Platform Interface

PV

Process Values

SAPI

Safety Application Program Interface

SFRT

Safety Function Response Time

SPI

Safety Parameter Interface

STrailer

Safety Trailer

UASCTT

OPC UA Safety Compliance Test Tool

p

Bit error probability

Pre,cond

Conditional residual error probability