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FOXBORO FDC280 Field Device Controller

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FOXBORO DCS · FIELD CONTROLLER

FDC280

Distributed field-mounted controller for process control, alarming and direct field-device integration.

FIELD INTEGRATION

Direct device integration without additional FBMs.

CONTROL FUNCTION

CONTROL Process Control	ALARMING Process Alarming
REDUNDANCY Optionally fault-tolerant / redundant architecture

FDC280 is designed for field-mounted control applications and can integrate field devices directly into the Foxboro DCS architecture.

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Product Details

FOXBORO DCS · FIELD DEVICE CONTROL

FDC280

Field Device Controller 280

A distributed, optionally fault-tolerant controller designed to integrate Ethernet and serial field devices directly into a Foxboro DCS environment while also providing regulatory, logic, timing, sequential control, data acquisition and alarm functions.

One controller — two operational domains

The FDC280 uses a dual-core ARM System on a Chip. The Control Core runs the FDC280 control software and Foxboro DCS Control Network communication functions, while the I/O Core runs the field-device integration functions.

This architecture allows field-device communication and process-control functions to operate within one distributed controller instead of requiring a separate fieldbus-module layer for supported device integration.

Control Core → control strategy + Control Network
I/O Core → field-device integration + device communications

FIELD DEVICES 256 maximum	FIELD POINTS 8,000 maximum scanned
SERIAL PORTS 4 RS-232 / RS-422 / RS-485	FIELD ETHERNET 10/100/1G copper Ethernet

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01 / CONNECTION ARCHITECTURE

From Control Network to Field Device

◇

Foxboro DCS

Control Network

→

CORE CONTROLLER

FDC280

Control Core + I/O Core

→

◇

Field Devices

Ethernet / Serial interfaces

Supported field-device communication can use Ethernet or serial interfaces, with protocol-specific drivers providing the device connection.

Ethernet field-device side

The FDC280 baseplate provides two copper Ethernet RJ-45 connections for field-device networks. Supported connections operate at 10/100 Mbps or 1 Gbps and can connect directly to Ethernet field devices or through customer-supplied Ethernet switches.

The field-device Ethernet network is separate from the Foxboro DCS Control Network architecture.

Serial field-device side

Four serial ports are available. Each port can be individually configured for RS-232, RS-422 or RS-485 communication, allowing different serial interface requirements to be handled within the same controller.

Up to 128 RS-485 field devices are supported across the four serial ports, with a maximum of 32 devices on each RS-485 port.

02 / DEVICE INTEGRATION

Protocol-ready field connectivity

Modbus TCP

The FDC280 can integrate supported Modbus field devices through Ethernet using the Modbus TCP driver.

Modbus RTU

The serial driver supports Modbus RTU field-device communication over the FDC280 serial interfaces.

Triconex System Access

The FDC280 supports the Triconex System Access Application driver for applicable device integration architectures.

The available driver set depends on the FDC280 software image and installed driver configuration. Driver compatibility should therefore be checked against the target system before a replacement or upgrade.

03 / FAULT-TOLERANT DESIGN

Two modules, one coordinated control path

A fault-tolerant FDC280 installation uses two controller modules mounted in adjacent dedicated positions on the FDC280 baseplate.

Both modules process Control Network information simultaneously. Fault detection and comparison mechanisms determine which module should remain Primary.

Primary → active control
Shadow → synchronized monitoring and redundancy

What redundancy means at the I/O side

The Primary FDC280 reads and writes field-device I/O values while the Shadow FDC280 monitors device connection status. I/O values are maintained internally so that the Shadow module can assume the Primary role when required.

For single-ported field devices, the redundant connection can extend to the Ethernet switch or serial termination arrangement, while dual-ported devices can support redundant paths farther into the field-device network.

Either FDC280 module can be removed or replaced without removing power from the FDC280 baseplate.

04 / CONTROL CAPABILITY

More than a communication gateway

Regulatory control

Supports process-control strategies implemented through configured functional control blocks.

Logic & sequence

Performs logic, timing and sequential control directly within the controller.

Data acquisition

Acquires field data for control, display and historical processing within the Foxboro DCS environment.

Alarm processing

Provides alarm detection and notification as part of the controller's process-control functions.

05 / TECHNICAL PROFILE

FDC280 Technical Specifications

Part Number	RH101FQ
Processor	Dual-core ARM System on a Chip
Error detection	ECC with single-bit error detection/correction and multiple-bit error detection
Maximum field devices	256
Maximum field points	8,000; minimum scan time 100 ms
Maximum blocks	8,252
Block execution	16,000 blocks/second maximum
Minimum block processing cycle	100 ms
Configurable block periods	0.1, 0.2, 0.5, 0.6, 1, 2, 5, 6, 10, 30 seconds; 1, 10, 60 minutes
Block processing cycle	0.1, 0.2, 0.5 or 1.0 second
Serial ports	4
Serial interfaces	RS-232, RS-422 or RS-485, independently configurable per port
Serial transmission rates	300 to 115200 baud: 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600 and 115200
RS-485 capacity	Up to 128 devices total; maximum 32 devices per port
Field Ethernet	10/100 Mbps or 1 Gbps copper Ethernet
Control Network	100 Mbps Ethernet via copper or fiber network adapters
Power	24 V DC typical; redundant input arrangement supported
Power consumption	8.5 W maximum per non-redundant module
Operating temperature	-20 to +60°C (-4 to +140°F)
Storage temperature	-40 to +70°C (-40 to +158°F)
Relative humidity	5 to 95%, noncondensing
Operating altitude	Up to +3,000 m (+10,000 ft)
Contamination class	Class G3, harsh environment
Vibration	0.5 g, 5 to 500 Hz
Module dimensions	105 mm or 116 mm height including mounting lugs × 51.8 mm width × 147 mm depth
Module weight	0.8 kg maximum for a single non-fault-tolerant module
Baseplate	RH101KF dedicated 2-position FDC280 baseplate
Fiber adapter	RH924WA, Rev. E or later
Copper adapter	RH924UQ, Rev. D or later

06 / MAINTENANCE DESIGN

Built for field-mounted service

LCD status visibility

The faceplate LCD can display the letterbug, operating role, module position, part number, image version, hardware revision and Control Network connection status.

LED diagnostics

Front-panel LEDs indicate FDC280 operating status and the Ethernet connection status to field devices. Network adapter LEDs provide additional power and Control Network communication status.

Field replacement

The redundant architecture permits a module to be removed or replaced without removing power from the baseplate, while the remaining module continues supporting the redundant arrangement.

Self-hosting capability

When configured for self-hosting, the FDC280 can boot and execute its configured control strategy using a valid checkpoint database stored in flash memory, even when the host workstation is not online.

Time synchronization

The Foxboro DCS environment supports external UTC synchronization from GPS satellites or an internal synchronization mechanism. Field inputs are time stamped when received by the FDC280, with a minimum scan time of 10 times per second.

07 / SYSTEM FIT

What should be checked before ordering an FDC280?

Controller arrangement

Determine whether the installation uses one controller or a fault-tolerant pair.

Field protocol

Check whether the connected equipment requires Ethernet, Modbus serial, Triconex System Access or another supported driver.

Baseplate & adapter

Verify RH101KF and the required copper or fiber network adapter revision.

Serial termination

For serial devices, verify the termination assembly, cable arrangement and RS-232/422/485 configuration.

DELIVERY

3–5 Days

WARRANTY

12 Months

PACKAGING

Brand New

PAYMENT

T/T

Delivery way: E-packing / FedEx / EMS / TNT / DHL / UPS

08 / DIRECT CONTACT

Need an FDC280 replacement or system component?

Send your application details and part requirements for quotation.

EMAIL · sales@amikon.cn

PHONE / WHATSAPP · 86-18020776792

SALES MANAGER · MIYA ZHENG

For quotation, please provide: Part Number · Quantity · Destination · Required Date · Machine/System

09 / BUYER QUESTIONS

FDC280 — Five questions before replacement

01	What should be matched before replacing an FDC280 in a fault-tolerant installation? The replacement should be checked against the existing FDC280 arrangement, including the dedicated RH101KF baseplate, module position, network adapter type and revision, software image/driver configuration, and the field-device communication architecture. A fault-tolerant pair uses two dedicated adjacent module positions and the baseplate interconnection.
02	Can FDC280 replace a conventional controller-plus-I/O arrangement when the requirement is field-device integration? The FDC280 was specifically designed to provide direct field-device integration without additional Foxboro DCS Fieldbus Modules for supported protocols. Whether it can replace a particular existing architecture depends on the connected device protocols, I/O requirements, baseplate arrangement and control strategy.
03	Why is the serial-port configuration important when selecting an FDC280? Each of the four serial ports can independently use RS-232, RS-422 or RS-485. This matters when the installed field devices use different physical interfaces. For RS-485 networks, the FDC280 supports up to 32 devices per port and up to 128 devices across the four ports.
04	Does FDC280 redundancy provide the same protection all the way through a single-ported field device? Not in the same way as the controller's Control Network fault-tolerant mechanism. The FDC280 modules provide redundant communication toward the field-device network, but a single-ported field device itself remains a single physical endpoint. Redundancy can extend to the Ethernet switch or serial termination arrangement depending on the field architecture.
05	What makes an FDC280 useful when the host workstation is temporarily unavailable? When self-hosting is configured and a valid checkpoint control database is stored in flash memory, the FDC280 can boot itself and execute its configured control scheme even when the host workstation is not online. This capability is relevant when evaluating controller behavior during workstation or host-side maintenance.

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Our approach combines component sourcing, order coordination and international shipment support so customers can move from a required part number to a practical purchasing solution with less delay.

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Amikon supports customers across different industrial automation manufacturers, helping locate components that may be routine for one plant but difficult to obtain for another.

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Spare-parts support · Purchasing assistance for maintenance and replacement requirements
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10M+ parts sold · More than ten million industrial parts sold worldwide

Locate the component. Coordinate the shipment. Restore the system.

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After-Delivery Support

Please contact us within 7 days if you have any question after receiving the items.

Returned items should remain in their original condition and include the specific reason for return. After the returned item is received, a return or replacement can be arranged according to the case. The buyer is responsible for shipping costs incurred by the return.

AMIKON · Industrial Automation Components

Foxboro FDC280 · Field Device Controller 280

Sales Manager: Miya Zheng · sales@amikon.cn · 86-18020776792

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