Appendix
APPENDIX H –
HOST INTEROPERABILITY SUPPORT TEST (HIST)
Like all responsible field device vendors, Rotork has successfully passed the rigorous ITK testing at
the Fieldbus Foundation's test lab in Austin, Texas. For most other bus systems this would be
sufficient, but the Foundation Fieldbus protocol is very complex and interpretations on its use can
differ slightly between various DCS vendors.
This means it is strongly recommended to obtain HIST approval prior to the on-site commissioning of
an FF system. This HIST should cover not only the field devices to be used but also the particular
make and model of DCS and the firmware revision used. A HIST is a service that DCS vendors
provide, possibly for a small charge. It is not a service that Rotork can offer.
Rotork has deposited FF actuators at all the major DCS vendors test labs to enable them to test our
cards when required. For specific projects, Rotork can provide a list of HIST approvals.
Publication PUB089-005-00_0618
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