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Appendix G Glossary
Table terms and definition for ready reference are listed in Table 9.
Table 9. Table Terms and Definitions
Terminology
and
Abbreviations Definition and Full Expression
CCF Common Cause Failure
Class B and Class Class B and Class1 are IEC60730 and UL1998 classification of safety standards for appliance space using MCU
1 (microelectronics controller)
Class C and Class Class C and Class2 are IEC60730 and UL1998 classification of safety standards for Industrial equipment that prevent
2 hazards, such as fire and explosion using MCU (microelectronics controller)
E/E/PE Electrical/Electronic/Programmable Electronic, example: E/E/PE
EEPROM Electrically Erasable Programmable Read-Only Memory
EUC Equipment Under Control
FIT Failure In Time (1 FIT = 1 failure 109 h)
FMEA Failure Mode, Effects and Analysis
FMEDA Failure Mode, Effects and Diagnostics Analysis
FPGA Field Programmable Gate Array
Functional Safety Part of the overall safety relating to the EUC and the EUC control system that depends on the correct functioning of
the E/E/PE safety-related systems and other risk reduction measures
HFT Hardware Fault Tolerance
IEC International Electro technical Commission – Source for IEC Specifications
ISO International Organization for Standardization – Source for ISO specifications
MooN M out of N channel architecture with Diagnostics
MooND M out of N Channel Architecture With Diagnostics
MTBF Mean Time Between Failure
Safe State State of the EUC When Safety is Achieved
Safety Freedom From Unacceptable Risk
SFF Safe Failure Fraction
SIF Safety Instrumented Function
SIL Safety Integrity Level
TI Texas Instruments
C2000 MCU Specific
C28x CPU Texas Instruments 32-Bit Central processing Unit
CLA Texas Instruments 32-Bit processor to Function as Control Law Accelerator
FPU Floating-Point Unit designed to work with C28x CPUs
IQ Math Floating-Point Unit designed to work with C28x CPUs
PSA Parallel Signature Analyzer
VCU Viterbi and Complex math unit designed to work with C28x CPUs
POST Power On Self Test
PEST Periodic Self Test
39
SPRUHI3A–April 2013–Revised August 2013 Glossary
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