FOXBORO FBM232 233 Field Mounted Intelligent Enclosure

FOXBORO FBM232 233 Field Mounted Intelligent Enclosure

Overview

The EcoStruxure™ Foxboro™ DCS Field Mounted Intelligent Enclosure provides an integrated solution designed to be mounted close to instruments in the field to reduce cables. The Field Mounted Enclosure includes Universal Input/Output (UIO) modules, power supplies, and Termination Assemblies (TAs) that are pre-installed and tested, and can be connected to a wide range of field devices. The enclosure supports Schneider Electric’s Flexible Lean Execution strategy, which shortens project schedules and reduces the risk of startup delays.

The Field Mounted Intelligent Enclosure is designed to be mounted in the field, and connects through redundant single mode fiber to the Field Control Processors located in the Equipment Room Intelligent Enclosure. For more information, refer to Equipment Room Intelligent Enclosure (PSS 41H-2I30)

Features

• Protection against harsh environments and hazardous locations: 

◦ NEMA® 4X/IP66 rated 

◦ Class G3 (harsh) environment 

◦ ATEX 

• Universal I/O and TAs support any one of these options: 

◦ 64 Simplex I/O 

◦ 64 Redundant I/O 

◦ 48 Simplex and 16 Redundant I/O 

• Up to 16 Universal Standard I/O modules (8 x FBM247, 16 x FBM248, or 4 x FBM248 and 6 x FBM247) that support 64 simplex, redundant, or simplex and redundant I/O Channels using TAs and signal conditioners 

• Redundant Field Communication Modules (FCM2F10) for single mode fiber communication to FCP280 

• Up to two Field Device System Integrator Standard modules (1 x or 2 x FBM232, 2 x FBM233) for Modbus TCP Communication • Daisy chain from one enclosure to the next to reduce home run cables for communication and power. Alternatively, the power output used to daisy chain an enclosure can be used to provide power to a wireless field device access point installed outside of the enclosure 

• Up to two Fieldbus Isolator/Repeator modules for daisy chaining enclosures using Copper (FBI200) or Fiber Optic cable (FCM2F10) 

• 12-port fiber optic patch panel with STconnectors for terminating and distributing fiber-optic cables for communication to the enclosure and wireless field device access point • Document pocket inside front door 

• Door stoppers to help prevent the door from swinging or opening too widely 

• 120 V AC, 230 V AC system supply 

• Supports the Intelligent Commissioning Wizard, which significantly reduces commissioning effort and shortens the time to plant start-up (see Field Device Expert for HART Devices Control and I/O (PSS 41S-10FDMHRT)

Modular Baseplate Mounting

The enclosure contains two 8-position standard 200 Series modular baseplates for Foxboro DCS Fieldbus Modules (FBMs), and two 2-position baseplates for the FCM2F10s. These are mounted on two vertical DIN rails as shown in Figure 1, page 7. The FBM baseplates include signal connectors for the FBMs, redundant independent DC power connections, system cable connections, module fieldbus connections, and time synchronization connections.

Power Distribution Architecture

The enclosure provides a redundant 24 V power system using two FPS480-24 power supplies fed by independent sources. Power wiring is routed through the bottom of the enclosure. The input power connects to the primary and secondary entry terminal blocks for main and backup power.

Electrical fuses are monitored by the Fuse Monitoring Unit (FMU) and an open fuse indication from the FMU is wired into the Enclosure Monitoring Unit (EMU) through the Alarm Distribution Assembly

The enclosure can be configured with the following options: 

• 120 V AC or 230 V AC supply 

• Customer supplied cable glands or factory fitted Multi Cable Transit (MCT) 

• Termination Assembly selection for IS, Non-IS, and manufacturer 

• 64 simplex UIO points, 64 redundant UIO points, or 48 simplex and 16 redundant UIO points 

• Third party communications through FBM232 modules for simplex Ethernet or FBM233 modules for redundant Ethernet 

• Fiber optic connection to the HDLC Fieldbus using FCM2F10 modules 

• Extended twinaxial connection to the HDLC Fieldbus using FBI200 modules