NEMA IA2.4 : 2005
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
PROGRAMMABLE CONTROLLERS - PART 4: USER GUIDELINES
08-14-2015
12-06-2012
FOREWORD
INTRODUCTION
1 General
1.1 Scope and object
1.2 Normative references
1.3 Use of this report
2 Terms and definitions
3 General recommendations for installation
3.1 Environmental conditions
3.2 Field wiring
3.3 Electromagnetic compatibility
3.4 User system markings
4 PLC in functional safety applications
4.1 Functional safety and safety-related-system
concept
4.2 Using a PLC in a safety-related application
4.3 Requirements on PLCs in a safety-related system
4.4 Integration of PLC into a safety-related system
Annex A (informative) Overview of normative parts of
IEC 61131
A.1 Overview of IEC 61131-1
A.2 Overview of IEC 61131-2
A.3 Overview of IEC 61131-3
A.4 (blank)
A.5 Overview of IEC 61131-5
A.6 (blank)
A.7 Overview of IEC61131-7
A.8 (blank)
Annex B (informative) Conformity to IEC 61131 and
product certification
B.1 General
B.2 Conformity to standards
B.3 Declaration of conformity and certification
B.4 The inter-relation of standards to laws in
European Community
B.5 CE-marking of PLCs in the European Union
B.6 Transition periods
B.7 Other juristictions
B.8 Reference documents
Annex C (informative) Use of PLC programming languages
and examples
C.1 Preamble
C.2 Advance planning
C.3 Structure and organization
C.4 Use of PLC languages
C.5 User Defined Function Block (DFB)
C.6 Language implementation
Figures
Tables
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