NA 163 is newly publishedfrom 2017-12-15
The NAMUR Worksheet NA 163 has been released and may now be obtained from the NAMUR Office.
Abstract NA 163 "Security Risk Assessment of SIS"
IEC 61511 asks for IT – Risk assessments for Safety Instrumented Systems. NA 163 describes who, how often and for which scope the Risk Assessment should be done. Using a Checklist a SIS – Engineer with basic knowledge of IT and Networking is able to perform the assessment.