IEC 61131-2-2017 PDF

Full title and description

Industrial-process measurement and control — Programmable controllers — Part 2: Equipment requirements and tests (IEC 61131-2:2017). This international standard specifies functional and electromagnetic-compatibility (EMC) requirements and associated verification tests for programmable controllers (PLCs/PACs) and their associated peripherals intended for control and command of machines and industrial processes.

Abstract

IEC 61131-2:2017 (4th edition) defines minimum requirements and type/production test procedures covering functional, electrical, mechanical, environmental and EMC characteristics of programmable controllers and related peripherals. The 2017 edition is a technical revision of the previous (2007) edition and introduces updates such as removal of specific safety clauses (referencing IEC 61010-2-201), addition of negative-logic I/O and Type 3-d inputs, extended RF immunity requirements, clarifications to temperature and type testing, and a reorganization of clauses to better link requirements and verifications.

General information

• Status: International Standard — published / active (4th edition).
• Publication date: 23 August 2017.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 25.040.40; 35.240.50.
• Edition / version: 4.0 (IEC 61131-2:2017).
• Number of pages: 227 pages.

(Key bibliographic data above derived from the IEC publication record.)

Scope

Specifies the requirements and related tests for products whose primary function is industrial control — including PLCs/PACs and associated peripherals such as programming and debugging tools and human‑machine interfaces — intended for control and command of machines and automated manufacturing or process systems (discrete, batch and continuous). The standard covers normal service conditions, functional requirements, environmental and EMC requirements, type tests and verification tests, and information to be supplied by the manufacturer. The 2017 edition cancels and replaces the 2007 edition.

Key topics and requirements

• Functional requirements for inputs, outputs, processing elements and peripherals (including new clarifications for negative-logic I/O and Type 3‑d digital inputs).
• Type testing and production/individual tests: definitions and procedures for type tests and routine/acceptance tests.
• Environmental tests (temperature, humidity, vibration, mechanical strength) and clarified temperature testing requirements.
• Electromagnetic compatibility (EMC) requirements and associated immunity and emission tests, including added RF immunity range (2.7 GHz to 6 GHz) for amplitude‑modulated signals.
• Removal of embedded safety requirements from this part and explicit cross-reference to IEC 61010-2-201 for safety-related tests and requirements.
• Requirements for manufacturer information: marking, instructions, EMC and safety information to be supplied with the product.
• Deprecation/clarification of some older or legacy technologies and reorganization of clauses to better link requirements with verifications.

Typical use and users

Used by PLC and PAC manufacturers to design and test control equipment; by test laboratories and conformity-assessment bodies for type and EMC testing; by OEMs, system integrators and procurement/approval engineers to specify and verify controllers and peripherals for industrial automation projects; and by standards committees and regulatory authorities for reference in national adoptions. The standard helps ensure interoperability, EMC robustness and baseline functional behaviour of industrial control equipment.

Related standards

Commonly used together with other parts of the IEC 61131 series (for example IEC 61131-1 for general information and IEC 61131-3 for programming languages). For safety-related requirements the 2017 edition directs users to IEC 61010-2-201. EMC and testing cross-references include relevant IEC 61000 series test standards (e.g., IEC 61000-4-2, -4-4, -4-11) and other national/adopted versions (EN/BS/ISO adoptions). The 2017 edition supersedes IEC 61131-2:2007.

Keywords

IEC 61131-2, programmable controllers, PLC, PAC, equipment requirements, type testing, EMC, immunity, functional requirements, industrial control, peripherals.

FAQ

Q: What is this standard?

A: IEC 61131-2:2017 is the fourth-edition international standard that sets equipment requirements and associated tests for programmable controllers and their peripherals used in industrial process and machine control.

Q: What does it cover?

A: It covers functional, electrical, mechanical, environmental and EMC requirements, type and routine tests, and the information manufacturers must provide. The 2017 revision adds specific I/O clarifications, extended RF immunity requirements and relocates safety requirements to IEC 61010-2-201.

Q: Who typically uses it?

A: Manufacturers of PLCs/PACs and peripherals, conformity-assessment and test laboratories, system integrators, OEMs, procurement engineers and standards bodies.

Q: Is it current or superseded?

A: As published on 23 August 2017 it is the current (4th) edition. The IEC record indicates a stability target into 2028; users should check national/adopted versions or IEC updates for any amendments or newer editions beyond that date.

Q: Is it part of a series?

A: Yes — it is Part 2 of the IEC 61131 series (programmable controllers). Other parts include general information (Part 1) and programming languages (Part 3), among others.

Q: What are the key keywords?

A: PLC, PAC, programmable controllers, equipment requirements, EMC, type tests, industrial control, peripherals, IEC 61131-2.