Application Note for “Usage of AC500 digital standard I/Os in functional safety applications up to PL c (ISO 13849-1)”, V1.0.0
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We reserve all rights in this document. Reproduction, use or disclosure to third parties without express authority is strictly forbidden. Ó 2015 ABB Ltd.
AC500-S ABB Safety PLC for applications up to SIL3 (IEC 61508 ed. 2 and
IEC 62061) and PL e (ISO 13849-1), refer also to
www.abb.com/PLC for further details
AB Automation Builder (ABB Automation Builder is the integrated soft-
ware suite for machine builders and system integrators which co-
vers the engineering of ABB AC500 PLC, AC500-S Safety PLC,
control panels, drives, motion and robots)
CCF Common Cause Failure
CPU Central Processing Unit
DCavg Diagnostic Coverage - average
DPRAM Dual-ported Random Access Memory
IEC International Electro-technical Commission Standard
I/O Input/Output
EMC Electromagnetic compatibility
FB Function Block
FSDT Functional Safety Design Tool (ABB tool for functional safety calcu-
lation according to ISO 13849-1 and/or IEC 62061)
MTBF Mean Time Between Failures
MTTFd Mean Time To Failure dangerous
PFH Probability of Failure per Hour (1/h)
PL Performance Level according to ISO 13849-1
PLC Programmable Logic Controller
SIL Safety Integrity Level (IEC 61508 ed. 2)
TÜV Technischer Überwachungs-Verein (Technical Inspection Associa-
tion)
1.6 References / Related documents
[1] AC500-S Safety User Manual, 3ADR025091M0204
[2] Cyclic Non-safe Data Exchange between SM560-S Safety CPU and PM5xx
Non-Safety CPU, 3ADR025195M0201
[3] BGIA Report 2/2008e, Functional safety of machine controls - Application of
EN ISO 13849
[4] AC500 Documentation, refer to www.abb.com/PLC and then navigate to
Downloads area
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