Features

The key features of the Compact FBM215 module are listed below:

 Eight isolated output channels, each providing one of the following outputs:

– Standard 4 to 20 mA analog output signals

– Digital HART Frequency Shift Keying (FSK)

Digital HART Frequency Shift Keying (FSK) signals are superimposed on the 4 to 20 mA analog output signals.

 FSK modem dedicated to each output channel for bi-directional digital communication with HART field devices

 Galvanic isolation of all output channels from each other and from ground and module logic

 Supports HART common commands required to interface field devices with the Foxboro Evo™ Control Core Service System.

Database

 Compact, ruggedized enclosure for Class G3 (harsh) environments

 Termination assembly (TA) for local or remote connection of field wiring to the compact FBM215.

OVERVIEW

The Compact HART Communication Output Interface Module (FBM215) contains eight channels of isolated output channels.

The Compact FBM215 supports any combination of standard 4 to 20 mA devices and HART devices, and is part of the Compact 200 Series I/O Subsystem, as described in the Compact 200 Series I/O Subsystem Overview.

The Compact FBM215 serves as a host for HART-communicating field devices, allowing the Foxboro Evo system to request and receive two digital telegrams per second from each field device.

The Telegram Pass-Through feature can be used to support HART generic, common, and device-specific commands, but does not support burst communication modes.

These commands are implemented through the Intelligent Field Device Configurator (IFDC – see Intelligent Field Device Configurator FoxCom for details) and the HART protocol.

The compact FBM215 provides an isolated power supply for each channel.

When connected to the appropriate TA, the Compact FBM215 provides the functionality previously provided by the 100 Series FBM I/O subsystem.

TAs support the functional HART devices of the 100 Series FBM37 when the FBM37 is used with the following devices