At Pepperl+Fuchs, the safety relevant parameters of a product are given in a way that respects the use within a safety loop. In many cases, the safety loop consists of a chain from sensor over interface modules, to DCS, and back to the field side over interface modules to actuators. The SIL level of a loop is based on a certain failure budget, and every component of a loop is allowed to take a certain share of this budget. All Pepperl+Fuchs products have a very low failure probability. SIL 2 modules within the Interface technology portfolio take such a small part of the failure budget that SIL 2 rated devices are also suitable for SIL 3 level.
Due to the high quality standards, Pepperl+Fuchs products only need a minimum share of the failure budget of the whole safety loop. They improve the safety of the plant significantly by exceeding the standards.
Less failure probability means more safety and gives customers maximum flexibility in their choice of other components of the safety loop.