Programmable controllers - Part 2: Equipment requirements and tests (IEC 61131-2:2007)
Edition 2008-06-01

Programmable controllers - Part 3: Programming languages (IEC 61131-3:2013) (german version)
Edition 2014-07-01

Programmable controllers - Part 5: Communications (IEC 61131-5:2000)
Edition 2002-01-01

Programmable controllers - Part 6: Functional safety (IEC 61131-6:2012) (german version)
Edition 2013-11-01

Programmable controllers - Part 7: Fuzzy control programming (IEC 61131-7:2000)
Edition 2002-01-01

Programmable controllers - Part 9: Single-drop digital communication interface for small sensors and actuators (SDCI) (IEC 61131-9:2013) (german version)
Edition 2015-03-01

Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 1: General requirements (IEC 61508-1:2010)
Edition 2011-04-01

Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 2: Requirements for electrical/electronic/programmable electronic safety-related systems (IEC 61508-2:2010)
Edition 2011-04-01

Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 3: Software requirements (IEC 61508-3:2010)
Edition 2011-04-01

Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 4: Definitions and abbreviations (IEC 61508-4:2010)
Edition 2011-04-01