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v6rev 12025-08-04IEC 61508-4 MOD

mode of operation (SIL)

0112/2///61987#ABB910

way in which a safety-related system is intended to be used, with respect to the frequency of demands made upon it, which may be either low demand mode, where the frequency of demands for operation made on a safety related, system is no greater than one per year and no greater than twice the proof-test, frequency; or high demand or continuous mode, where the frequency of demands for operation made, on a safety-related system is greater than one per year or greater than twice the proof check frequency

Used by classes
2
property
Code
ABB910
Data type
ENUM_STRING_TYPEABL497 ABL497
Condition
0112/2///61987#ABI406
Used by classes (2)

All properties29#

Version
6
Revision
1
Preferred name
mode of operation (SIL)
Definition
way in which a safety-related system is intended to be used, with respect to the frequency of demands made upon it, which may be either low demand mode, where the frequency of demands for operation made on a safety related, system is no greater than one per year and no greater than twice the proof-test, frequency; or high demand or continuous mode, where the frequency of demands for operation made, on a safety-related system is greater than one per year or greater than twice the proof check frequency
Definition source
IEC 61508-4 MOD
Value format
{0112/2///61987#ABI406}
Responsible committee
IEC/SC 65E
Publisher
IEC
Published in
IEC 61987
Published in
DEPENDENT_P_DET
Status level
Standard
Version release date
2025-08-04
Revision release date
2025-08-04
Version initiation date
2025-08-04
Original definition date
2017-12-07
Change request ID
C00185
C017
C018
C019
MDC_P022
ENUM_STRING_TYPE(0112/2///61987#ABL497)