Foxboro DCS Fieldbus Modules for Siemens APACS+™ Automation Systems

Foxboro Evo™ system Field Control Processor 280 (FCP280)

and Field Control Processor 270 (FCP270) modules mounted

on a baseplate and distributed control system (DCS) Fieldbus

Modules replace the APACS+ Control and I/O modules and

connect existing field devices to the Foxboro Evo system via

a 2 Mbps HDLC Fieldbus and high-speed Ethernet network.

OVERVIEW

The Foxboro Evo system DCS Fieldbus Modules

(FBMs) are for migration of APACS+™ automation

systems manufactured by Siemens® Energy &

Automation, Inc. and Moore Products Co. The FBMs

plug directly into an existing electronic nest to replace

process input and output modules.

The Foxboro Evo system DCS FBM family provides a

migration path from APACS+ process I/O

components to Foxboro Evo display and supervisory

functions. No additional communication devices are

required. No multi-vendor communication software

licensing is required.

The DCS FBM family replaces the APACS+ I/O

modules. Once integrated, the process is controlled

entirely by the advanced Foxboro Evo algorithm set.

The Foxboro Evo DCS FBM product includes

connectors to enable integration of original process

signals to Foxboro Evo systems while keeping the

field interface and wiring. It provides access to all

process signals connected to the APACS+ system by

providing the connection between the Field

Termination Assemblies (FTAs) and the Foxboro Evo

system. All process signals become fully integrated

into the Foxboro Evo system through the use of

process data for operator display, history, alarming

and control.

Operator functions and engineering configuration are

accomplished by the Foxboro Evo system at any

Foxboro Evo operator workstation. Because all

process values become part of the Foxboro Evo

system, all configuration data is maintained by the

system as native Foxboro Evo configurations.

This migration path provides plant operations with all

the power and flexibility of the Foxboro Evo system.

FEATURES

 Migration from proprietary DCS to a

state-of-the-art open Foxboro Evo system

 Advanced Foxboro Evo control with a single point

of configuration

 More direct control performance than any

gateway device could offer

 Cost savings over total system replacement by

preserving the existing process interface and

wiring and minimizing process downtime

 Single vendor service and supply.

FUNDAMENTAL PRINCIPLE

Foxboro® believes that it is only acceptable to

interface with competing manufacturers’ operating

systems in two ways:

 Through high level public gateways

 At the lowest level directly to field devices without

communicating with proprietary buses or

components.

The Foxboro migration product offerings adhere to

this principle.

PRODUCT DESCRIPTIONS

The Foxboro Evo migration strategy replaces the

APACS+ process control system with a 2 Mbps

Fieldbus connection to a Field Control Processor

(FCP280 or FCP270), provides a module-for-module

replacement of I/O modules, but leaves the original

process interface wiring and cabinets in place.

To replace the APACS+ control and I/O modules

mounted in MODULRAC, SIXRAC or UNIRAC

assemblies, the APACS+ migration consists of new

Foxboro Evo DCS FBMs, FCP280/FCP270 and

baseplate. The baseplate supports either a single

FCP280/FCP270 module or a pair of fault-tolerant

FCP280/FCP270 modules. The FCP280/FCP270

provides the control algorithms and interface

between the FBMs and the 100 Mbps/1 Gbps

Ethernet control network. This allows migration to

Foxboro Evo control, display and application

products while retaining the original process

termination and field I/O wiring. All original process

I/O capability of the APACS+ module functions is

replaced by FBMs and direct Foxboro Evo control

processor scanning and control. For more

information on the FCP270. refer to

PSS 21H-1B9. For more information on the FCP280.

refer to PSS 31H-FCP280.

New DCS FBMs plug directly into existing

MODULRACs, SIXRACS or UNIRACs in place of

APACS+ I/O modules.

The Fieldbus connects the DCS FBM subsystem to

the FCP280. FCP270 or ZCP270. I/O from the

subsystem is connected to the control strategy using

standard Foxboro Evo system I/O type blocks. The

DCS FBMs pass process measurement and output