★★★Product detail：

Overview
The FBM216bHARTCommunication 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).
Apair 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 FBM216bcanserve as a HARTcommunications field device host, enabling
Foxboro™ DCSto request and receive two digital messages per second from the field
device. The message pass-through capability can be used to support HART universal,
commonpractice, 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 FBM216bprovides 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 commonexternal power supply is used with two or more channels,
a Cable Balun module is required to help prevent HARTcommunication channel
crosstalk.

FBM216B P0927AJ

Features
• 8individually isolated analog input channels. Each channel accepts one of the
following inputs:
◦ Standard 4 to 20 mAanalog sensor signal
◦ Digital HART Frequency Shift Keying (FSK) signal superimposed on a 4 to 20
mAanalog signal
• Modulepair offers redundancy at the FBM level
• FSKmodemdedicatedtoeachinput channel for bi-directional digital
communications with a HART field device
• Analogto digital conversion of each of the 4 to 20 mA input signal from the HART
devices
• Support for the HARTuniversal commands necessary to interface the field device
with the Foxboro DCS database
• Perchannel galvanic isolation of each of the eight input channels from each
other, ground and module logic
• Ruggeddesignsuitable for enclosure in Class G3 (harsh) environments per ISA
Standard S71.04
• Highaccuracy achieved by sigma-delta conversions for each channel
• Termination Assembly (TA) for locally or remotely connecting field wiring to the
FBM216b
• TAprovide for per channel internally and/or externally loop powered transmitters

Redundant Analog Inputs
For each input operation, identical signals are sent to both redundant modules, fully
exercising the Fieldbus and the logic circuitry of each module. Each input channel
accepts an analog sensor input or a self-powered 4 to 20 mA source. Device power
from each module is diode OR’d together in the redundant adapter to help ensure
redundant power.
The microprocessor of each module executes the analog I/O application program,
plus security routines that validate the health of the FBM. Input channel availability is
enhanced by redundantly powering the input current loop from per-channel power
supplies in each module of the pair.

Visual Indicators
Light-emitting diodes (LEDs) incorporated into the front of the module provide visual
indication of the module’s operational and master or tracker status and
communication activity on the channels. Red and green LEDs indicate module power
and boot status. Two yellow LEDs indicate Redundancy (Master/Tracker) status

Fieldbus Communication
AFieldbus Communication Module or a Control Processor interfaces the redundant 2
Mbps module Fieldbus used by the FBMs. The Compact FBM216b accepts
communication from either path (A or B) of the redundant 2 Mbps fieldbus. If one path
is unsuccessful or is switched off at the system level, the module continues
communication over the active path.
The use of an external power supply common to two or more loops requires a Cable
Balun module to maintain communication signal line balance

★★★Contact us

BeiLin

| Mobile/wechat：+86 18005021035

Email contact：18005021035@163.com.

★About Chengdu Sunshine Xi He

Chengdu Sunshine Xi He Electric Co., Ltd. specializes in selling the world’s major electrical brand products overseas direct procurement,

genuine inventory, price preferential after-sales warranty, complete models, the same product, not the same price and service.

Large supply of original imported DCS system accessories, PLC system accessories.

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robot system accessories, large servo system discontinued spare parts.

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