Foxboro FBM214 HART Communication Input Interface Fieldbus Module

Technical Specifications

Model:FBM214

Brand:Foxboro

System compatibility:I/A Series DCS FBM200 series fieldbus I/O subsystem,works with FCP/FCM controller,matched with corresponding termination assembly and pre‑terminated cable assembly

Function:8‑channel galvanically group‑isolated HART‑capable analog input fieldbus module,each channel accepts standard 4‑20mA analog signal or HART FSK digital signal superimposed on 4‑20mA loop,per‑channel dedicated HART modem for bidirectional communication with HART smart field transmitters,sigma‑delta A/D conversion,supports HART universal and common‑practice commands,mixed deployment of conventional 4‑20mA instruments and HART smart instruments,configurable integration‑time and rate‑of‑change‑limit parameters

Installation:Baseplate‑mount installation,mated with dedicated FBM baseplate and matched termination assembly

Input channel:8‑channel 4‑20.4mA analog input,group‑wise galvanic isolation between field group and module logic ground,nominal channel input impedance 61.9Ω,minimum total loop resistance 280Ω per channel

Circuit feature:Sigma‑delta high‑precision A/D conversion,per‑channel over‑voltage‑over‑current protection,sensor open‑circuit detection,complies with HCF_SPEC‑54 HART physical‑layer standard,max two HART digital messages per‑channel per second

Feature:Support hot‑swap online replacement without subsystem power‑off,redundant 2Mbps fieldbus communication with FCP/FCM controller,group‑isolated design (non‑channel‑to‑channel isolation)

Diagnostic:Front‑panel multi‑color LED indicators for power and fieldbus communication status,HART device diagnostic data passed to DCS system

Power supply:24VDC via FBM baseplate backplane,power consumption ≤2.5W typical

Protection:Transient surge absorption for each signal channel

Environmental standard:Compliant with ISA‑S71.04 Class G3 industrial atmospheric condition

Housing:Aluminum alloy metal housing,slot‑in mechanical locking structure

Protection class:IP20

Horizontal operating temperature:‑20℃ ~ +70℃

Storage temperature:‑40℃ ~ +85℃

Relative humidity:5%‑95% non‑condensing

Weight:0.32kg

Dimensions:45mm ×110mm ×115mm

Certification:CE,UL

Built‑in function

FBM214 HART‑capable analog input module acquires 4‑20mA analog process values and HART digital diagnostic‑parameter data from field smart transmitters for Foxboro I/A‑Series DCS system. It adopts group‑isolation architecture instead of per‑channel isolation. Independent per‑channel HART modem realizes bidirectional interaction with HART instruments without additional external HART multiplexer. Sigma‑delta conversion guarantees high‑precision analog‑value acquisition. Open‑circuit detection quickly identifies broken field‑wiring faults. Hot‑swap supports online module replacement without system shutdown,widely applied for pressure,tank‑level and flow‑smart‑transmitter‑loop maintenance in petrochemical,chemical and power‑plant facilities.

Product Brief

FBM214 belongs to Foxboro I/A Series legacy DCS HART‑analog‑input spare‑part family,obsolete original baseplate‑mount 8‑channel HART‑communication‑input‑interface module component. Must match with corresponding FBM baseplate and matched termination assembly. Widely used for original Foxboro DCS equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation.