1. INTRODUCTION
2. REASONS FOR DIRECTIVES
3. APPLICABLE DIRECTIVES AND HARMONISED STANDARDS FOR PCs
   3.1 EMC Directive 89/336/EEC.
   3.1.1 Scope of the EMC Directive
   3.1.2 Essential requirements of the Directive
   3.1.3 Apparatus Covered by the EMC Directive
   3.1.4 Apparatus Exempted From the EMC Directive
   3.1.5 Application to Apparatus, Equipment, Systems,
   Installations and Components
   3.1.6 Placing Products on the Market
   3.1.7 Conformance Checking
   3.1.8 Applicable Harmonised EMC Standards
   for CE Marking Purposes
   3.2 Compliance Without Testing
   3.2.1 Scope of the EMC Directive
   3.2.2 Safety Objectives
   3.2.3 Establishing Compliance with the LVD
   3.3 Machinery Directive
   3.3.1 System Integration and Safety Requirements
   3.3.2 Design of Machinery to Facilitate Handling
   3.3.3 Power Supply Failure and Interruptions
   3.3.4 Warnings of Residual Risks
   3.3.5 Instructions for Use
   3.3.6 Airborne Acoustic Noise
4.  TESTING TO EMC STANDARDS
   4.1 Applicable EMC Standards
   4.2 Purpose of Emission Standards - CISPR Limits
   4.3 EMC Immunity Standards and Requirements
   4.3.1 Immunity to Electrostatic Discharge: IEC 61000-4-2
   4.3.2 Immunity to Radiated Electromagnetic Fields: IEC 61000-4-3
   4.3.3 Immunity to Conducted Electrical Fast Transients (EFT/B): IEC 61000-4-4
   4.3.4 Immunity to Power line Surge Transients: IEC 61000-4-5
   4.3.5 Immunity to Conducted RF Disturbances: IEC 61000-4-6
   4.3.6 Immunity-Power Supply Interruptions : IEC 61000-4-11
5.  EMC TEST PLAN REQUIREMENTS
   5.1 Who Prepares EMC Test Plan?
   5.2 Adequate Immunity Investigations.
   5.3 Cycle Times
   5.4 Content of an EMC Test Plan
   5.5 Steps to EMC Compliance
   5.6 On-going Compliance
6. CONCLUSION

APPENDIX A

SAMPLE EMC TEST PLAN FOR PROGRAMMABLE LOGIC CONTROLLERS
 

1. GENERAL
2. CONFIGURATION OF EUT DURING TESTING 2.1 General
   2.2 Composition of EUT.
   2.3 Assembly of EUT.
   2.4 Cable Interfaces to be Tested.
   2.5 Auxiliary Equipment.
   2.6 Cabling and Grounding
3. OPERATION CONDITIONS OF EUT DURING TESTING 3.1 Operation Modes
   3.2 Environmental Conditions
   3.3 Test Software
4.  SPECIFICATION OF ACCEPTANCE CRITERIA
5.  TEST DESCRIPTION
6.  IMMUNITY REQUIREMENTS
   6.1 Conditions During the Tests
   6.2 Minimum Immunity Test Requirements
   6.3 System and Application Aspects
   6.4 Random Aspects.
   6.5 Performance Criteria
7.  EMISSION REQUIREMENTS
     7.1 Conditions During Measurements