Functional Safety 2014

TÜV SÜD Product Service

Objectives

To define the procedures that are necessary to ensure that the functional safety for the E/E/PE

safety-related systems is appropriate, both during and after the modification and retrofit phase

has taken place

IEC 61508

Part 1 Clauses

7.16.1

7.16.2

IEC 62061

Clause 9 – Modification

This clause specifies the

modification procedure(s) to be

applied when modifying the

SRECS during design,

integration and validation (e.g.

during SRECS installation and

commissioning).

Modification after the SRECS

has been put into operation and

use is not considered by 62061

ISO 13849

Modifications during software

development covered in clause

4.6 – Software safety

requirements.

Modification after the machine

has been put into use is only

briefly mentioned in the

documentation requirements of

clause 11 – Information for use

Overall modification and retrofit