In recent posts I’ve been discussing the changes in the use of EN 954 – 1, Safety of Machinery – Safety Related Parts of Control Systems. Part 1: General Principles for Design. The EU originally announced that this standard was to be withdrawn on 31-Dec-09, being replaced by EN ISO 13849 – 1. As you may know, there are significant differences in these two standards.
A later announcement from the European Commission repealed