Introduction - rotork Mk3 Technical Manual

Introduction

1 INTRODUCTION
This manual is designed to be an aid to commissioning and will assist with achieving a
successful integration of Rotork's FF product into a DCS's FF network. Correct installation
should ensure a lifetime of trouble free use. This is not a manual on how to use FF. Due to the
complex nature of the protocol, Rotork strongly recommends users attain a sufficient level of
FF competency prior to attempting any FF commissioning work.
The FF CP option card is the third evolutionary step in Rotork's Foundation Fieldbus journey. It has
been certified as conforming to the open fieldbus standard IEC 61158 and is suitable for use on an FF
H1 highway. The H1 highway uses two copper wires to both to carry the digital messages and to
supply power to all the devices connected on the highway. As such it is necessary to have a suitable
power supply and termination filter on the highway for the FF nodes to function.
The current version of the FF card may be fitted into any of the current Rotork Controls' actuator
product range. The FF card is an integral part of the actuator in which it is housed and is fitted within
the main electrical housing. This electrical housing need never be opened once the actuator leaves
the assembly plant. All adjustments to the settings for the FF card may be made via the Foundation
data highway using a suitable network configuration tool. There is no external marking on the actuator
to show the FF card serial number since the whole module may be replaced if it should fail.
The FF card's circuits do not impinge on the actuator control electronics; the actuator itself remains
fully self-protecting. The card performs the tasks of IEC 61158 interface, actuator data collection and
the issuing of actuator commands.
The FF CP card may command the actuator into which it is fitted to open, stop, close, perform an ESD
operation, perform a partial stoke operation or move to a set position. Commands to the module come
from the network and may be generated in another actuator or device on the network using peer to
peer, publisher/subscriber communication. Additionally, digital and analogue status information
relating to the actuator is published for the other devices to read.
For a quick start guide see section 8.
Fig 1.1: Some of the actuators which use the FF CP card
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