Foxboro FEM100 Fieldbus Expansion Module

Foxboro FEM100 Fieldbus Expansion Module

DESCRIPTION

The FEM100 module provides four Expanded Fieldbuses to an FCP270 to increase the number of 200 Series (or equivalent) FBMs supported by the FCP270 modules. The FEM100 module supports the 2 Mbps HDLC module Fieldbus for communication between the FCP270 and the 200 Series FBMs.The FEM100s are installed in a DIN rail mounted Modular Two-Slot or Four-Slot Expansion Baseplate for 2 Mbps communication between the FBMs and FCP270 modules.

FEATURES

 For typical control usage enables a FCP270 to communicate with up to 128 of the 200 Series FBMs, over four Expanded Fieldbuses 

 Redundancy minimizes communication interruption from Expanded Fieldbus 1 through 4 

 Two-Slot and Four-Slot FEM100 Expansion Baseplates both support the 2 Mbps Module Fieldbus for 200 Series (or equivalent) FBMs 

 Two-slot Expansion Baseplate accommodates FEM100 modules only, used to upgrade existing FCP270 installations

 Four-slot Expansion Baseplate accommodates two FCP270 control processors and their fiber optic splitter/combiners, plus two FEM100 modules, for new installations. 

 Harsh (Class G3 - ISA S71.04) contamination protection.

FEM100 MODULE DESIGN

FEM100 modules have a compact design, with a rugged extruded aluminum exterior for physical protection of the electronics. Enclosures specially designed for mounting of DIN rail mounted Fieldbus equipment provide various levels of environmental protection for the FEM100 modules, up to harsh environments per ISA Standard S71.04. The FEM100 can be removed/replaced from an Expansion Baseplate without removing power. Lightemitting diodes (LEDs) incorporated into the front of the FEM100 indicate module Fieldbus communications activity and module status.

HIGH AVAILABILITY

A pair of FEM100 modules provides redundancy for the Extended Fieldbuses to maintain very high subsystem availability. When both modules are active, the FCP270 sends and receives communications across both A and B buses. In the case of a FEM100 module failure, the FCP270 switches all traffic to the bus with the available FEM100 module until the failed module is replaced. Either module may be replaced without upsetting input or output communications to the other module.

EXPANSION BASEPLATE MOUNTING

The FEM100 modules mount on either the Two-Slot or Four-Slot Expansion Baseplate. These baseplates are DIN rail mounted and vertically oriented only. These baseplates include signal connectors for the FEM100s, redundant independent dc power connections, and four cable connections to the 2 Mbps HDLC Expanded Fieldbuses.

MODULE FIELDBUS COMMUNICATION

The Expansion Baseplates support the 2 Mbps module Fieldbus. They connect to the 2 Mbps module Fieldbus for communication to all 200 Series I/O FBMs, the Siemens APACS+™ and Westinghouse competitive migration modules.The 2 Mbps module Fieldbus is redundant and all 200 Series modules can receive/transmit messages over both A and B buses.

DEVICES SUPPORTED

The FEM100 supports the following devices on the 2 Mbps module Expanded Fieldbus:

 All 200 Series FBMs (FBM201, FBM202, and so forth) 

 Fieldbus Communications Modules, FCM2F2/FCM2F4/FCM2F10, for remote Fieldbuses

 Field Device Systems Integrator (FDSI) modules 

 The Foxboro Evo™ Process Automation System (the Foxboro Evo system) Fieldbus Modules for Siemens APACS+ systems 

 The Foxboro Evo system Fieldbus Modules for Westinghouse WPDF® systems.

LED INDICATORS

Light-emitting diodes (LEDs) on the front of the FEM100 module provide visual indication of the:

 FEM100 operational status - power and watch dog timer 

 HDLC transmit/receive - for Field Control Processors 

 HDLC transmit/receive - for Expanded Fieldbuses 1-4.

ENVIRONMENTAL SPECIFICATIONS

TEMPERATURE：-20 to +70°C (-4 to +158°F)

RELATIVE HUMIDITY：5 to 95% (noncondensing)

ALTITUDE：-300 to +3,000 m (-1,000 to +10,000 ft)

Storage TEMPERATURE：-40 to +85°C (-40 to +185°F)

RELATIVE HUMIDITY：5 to 95% (noncondensing)

ALTITUDE：-300 to +12,000 m (-1,000 to +40,000 ft)

Vibration：0.75 g from 5 to 500 Hz

APPLICATIONS

• Simulation 

• Instrumentation 

• Industrial control 

• Process control and monitoring 

• Factory automation 

• Intelligent networked PLC controllers 

• Automated test 

• Data acquisition