WG 16 - TC 65/SC 65A/WG 16

IEC 61069-1:2016 defines the terminology and outlines basic concepts in the assessment of a basic process control system (BPCS) and a basic discrete control system (BDCS). These two general system types cover the areas of discrete, batch and continuous applications. In IEC 61069 these two, BPCS and BDCS, together are referred to as "basic control system(s)", (BCS). This second edition cancels and replaces the first edition published in 1991. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- Reorganization of the material of IEC 61069-1:1991 to make the overall set of standards more organized and consistent;
- IEC TS 62603-1:2014 has been incorporated into this edition.

IEC 61069-4:2016 specifies the detailed method of the assessment of performance of a basic control system (BCS) based on the basic concepts of IEC 61069-1 and methodology of IEC 61069-2, defines basic categorization of performance properties, describes the factors that influence performance and which need to be taken into account when evaluating performance, and provides guidance in selecting techniques from a set of options (with references) for evaluating the performance. This second edition cancels and replaces the first edition published in 1997. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- Reorganization of the material of IEC 61069-4:1997 to make the overall set of standards more organized and consistent;
- IEC TS 62603-1:2014 has been incorporated into this edition.

IEC 61069-5:2016 specifies the detailed method of the assessment of dependability of a basic control system (BCS) based on the basic concepts of IEC 61069-1 and methodology of IEC 61069-2, defines basic categorization of dependability properties, describes the factors that influence dependability and which need to be taken into account when evaluating dependability, and provides guidance in selecting techniques from a set of options (with references) for evaluating the dependability. This second edition cancels and replaces the first edition published in 1994. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- reorganization of the material of IEC 61069-5:1994 to make the overall set of standards more organized and consistent;
- IEC TS 62603-1 has been incorporated into this edition.

IEC 61069-3:2016 specifies the detailed method of the assessment of functionality of a basic control system (BCS) based on the basic concepts of IEC 61069-1 and methodology of IEC 61069-2, defines basic categorization of functionality properties, describes the factors that influence functionality and which need to be taken into account when evaluating functionality, and provides guidance in selecting techniques from a set of options (with references) for evaluating the functionality. This second edition cancels and replaces the first edition published in 1996. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- Reorganization of the material of IEC 61069-3:1996 to make the overall set of standards more organized and consistent;
- IEC TS 62603-1:2014 has been incorporated into this edition.

IEC 61069-6:2016 specifies the detailed method of the assessment of operability of basic control system (BCS), based on the basic concepts of IEC 61069-1 and methodology of IEC 61069-2; defines basic categorization of operability properties; describes the factors that influence operability and which need to be taken into account when evaluating operability; provides guidance in selecting techniques from a set of options (with references) for evaluating the operability. This second edition cancels and replaces the first edition published in 1998. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- reorganization of the material of IEC 61069-6:1998 to make the overall set of standards more organized and consistent;
- IEC TS 62603-1 has been incorporated into this edition.

IEC 61069-7:2016 specifies the detailed method of the assessment of system safety of a basic control system (BCS) based on the basic concepts of IEC 61069-1 and methodology of IEC 61069-2, defines basic categorization of system safety properties, describes the factors that influence system safety and which need to be taken into account when evaluating system safety, and provides guidance in selecting techniques from a set of options (with references) for evaluating the system safety. This second edition cancels and replaces the first edition published in 1998. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- reorganization of the material of IEC 61069-7:1998 to make the overall set of standards more organized and consistent;
- IEC TS 62603-1 has been incorporated into this edition.

IEC 61069-2:2016 specifies the methodology in the assessment of a basic control system (BCS) based on the basic concepts of IEC 61069-1. It describes the method for analysing, weighing the relative importance of the various system properties and influencing factors, and determining an assessment program. This second edition cancels and replaces the first edition published in 1993. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- Reorganization of the material of IEC 61069-2:1993 to make the overall set of standards more organized and consistent;
- IEC TS 62603-1:2014 has been incorporated into this edition.

IEC 61069-8:2016 specifies the detailed method of the assessment of other system properties of a basic control system (BCS) based on the basic concepts of IEC 61069-1 and methodology of IEC 61069-2, defines basic categorization of other system properties, describes the factors that influence other system properties and which need to be taken into account when evaluating other system properties, and provides guidance in selecting techniques from a set of options (with references) for evaluating the other system properties. This second edition cancels and replaces the first edition published in 1998. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- reorganization of the material of IEC 61069-8:1998 to make the overall set of standards more organized and consistent;
- IEC TS 62603-1 has been incorporated into this edition.