FBM216 P0922VV Redundant HART® Communication Input Module

The FBM216b HART Communication Redundant Input Interface Module contains eight individually isolated input channels. It supports any mix of standard 4 to 20 mA devices and HART devices (the signals are electrically compatible).
A pair of modules combines to provide redundancy at the fieldbus module (FBM) level, with field inputs wired to one common termination assembly (see Figure 1, page 4). In this configuration, one FBM216b is the Master, and the other is the Tracker.
The FBM216b can serve as a HARTcommunications field device host, enabling Foxboro™ DCS to request and receive two digital messages per second from the field device. The message pass-through capability can be used to support HART universal, common practice, and device-specific commands, but it cannot support the burst communication mode. These commands are implemented using the Foxboro DCS
Field Device Expert for HART. For details, see Field Device Expert for HART Devices Control and I/O (PSS 41S-10FDMHRT).
The FBM216b provides individually isolated power supplies to power each of the eight channels.
Optionally, the channels for this module can be powered by an external power supply. However, when a common external power supply is used with two or more channels, a Cable Balun module is required to help prevent HARTcommunication channel crosstalk.

FBM216B