Having registered products for FF-SIF is just as important as having TÜV
certification. Just as FOUNDATION Fieldbus devices must be tested for
interoperability, the impending release of devices to be used in safety instrumented
systems must also undergo a registration process. Concept and
type approval for FOUNDATION Fieldbus devices to be used in safety instrumented
systems (SIS) has been approved by TÜV, but the suppliers
themselves must start producing devices and having them approved by
TÜV as well