Flowserve DDC-100 Modbus Direct-to-Host User Manual Page 29

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52 DDC-100 Direct-to-Host Programming Guide FCD LMAIM4019-00 FCD LMAIM4019-00 DDC-100 Direct-to-Host Programming Guide 53
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A
Typical DDC-100
Network Installation
Assignments
Various project suppliers play important roles in the design, purchase, installation, and commis-
sioning of a plant control system. A typical assignment of roles for the installation of a DDC-100
Network with its valve controllers is presented in this section. This material is presented for
guidance only and is not necessarily representative of a particular installation.
Project supplier responsibilities
S.I. (System Integrator) Responsible for developing code to operate the plant per the specifica-
tion. This includes the interface between the DDC-100 Network and the Host. The System Integrator
may be a third-party programmer or a site engineer responsible for computer programming.
Engineer (Project Engineer) Responsible for developing the site layout, specifications, and
requirements for the project.
Contractor Responsible for site project development. The contractor is the site coordinator
responsible for completing the upgrade or new facility installation per the specification. This may be
a third-party (independent) contractor or a site maintenance group.
Flowserve Limitorque Valve actuator manufacturer. Supplier of the valve actuators per the
specification.
OEM (Valve Original Equipment Manufacturer) Valve manufacturer responsible for providing
valves per specification to contractor or job site. The valve OEM may also provide the Limitorque
actuators as a part of its scope of supply.
Fourth-Party Hardware/Software Supplier of hardware and/or software packages needed to
complete system integrator’s scope of supply. Equipment typically includes: PLC racks, compo-
nents, personal computers, Graphical User Interfaces, etc.
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