Foxboro FBM214b / FBM216b Redundant‑Ready HART Communication Input Module Pair

Technical Specifications

Model:FBM214b(P0927AH),FBM216b(P0927AJ)

Brand:Foxboro

System compatibility:I/A Series DCS Compact‑200‑series fieldbus I/O subsystem,works with FCP/FCM controller,two modules installed on adjacent baseplate slots for redundant hot‑standby configuration,matched with corresponding termination assembly and pre‑terminated cable assembly

Function:Redundant‑ready HART‑capable analog input module pair,FBM214b serves as primary module,FBM216b serves as hot‑standby backup module,8‑channel per‑channel galvanic‑isolated 4‑20.4mA analog input,each channel integrated dedicated HART FSK modem for bidirectional communication with HART smart transmitters,supports HART universal,common‑practice and device‑specific commands,mixed deployment of conventional 4‑20mA instruments and HART instruments,sigma‑delta A/D conversion,configurable integration‑time and rate‑of‑change‑limit parameters,automatic primary‑backup switch‑over upon primary module fault without interrupting process‑control loops

Installation:Compact‑200‑series baseplate‑mount installation,FBM214b and FBM216b occupy two adjacent baseplate slots,share one common field termination assembly and cable assembly

Input channel:8‑channel 4‑20.4mA analog input,true per‑channel galvanic isolation,600VAC isolation rating between channels,nominal channel input impedance 61.9Ω,minimum total loop resistance 280Ω per channel,each channel provides isolated loop‑supply capability

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,hardware‑level hot‑standby redundancy,per‑channel isolation eliminates cross‑channel ground‑loop interference

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

Power supply:24VDC via Compact‑200‑series baseplate backplane,typical power consumption ≤3W per single module

Protection:Transient surge absorption for each signal channel

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

Protection class:IP20

Horizontal operating temperature:‑40℃ ~ +70℃

Storage temperature:‑40℃ ~ +85℃

Relative humidity:5%‑95% non‑condensing

Weight:0.32kg per single module

Dimensions:45mm ×110mm ×115mm per single module

Certification:CE,UL

Built‑in function

FBM214b/FBM216b redundant‑pair HART analog input modules acquire 4‑20mA analog process values and HART digital diagnostic‑parameter data from field smart transmitters for Foxboro I/A‑Series DCS critical‑control‑loop applications. Different from group‑isolated FBM214/FBM216 pair,it adopts true per‑channel galvanic‑isolation architecture. When primary FBM214b fails,FBM216b automatically takes over without loop interruption. Hot‑swap supports online replacement of faulty module without system shutdown,widely applied for pressure,tank‑level and flow‑critical‑loop maintenance in petrochemical,chemical and power‑plant facilities.

Product Brief

FBM214b/FBM216b belongs to Foxboro I/A Series legacy DCS Compact‑200‑series redundant‑per‑channel‑isolated‑HART‑analog‑input spare‑part family,obsolete original redundant‑hot‑standby module pair. Must adopt adjacent‑slot installation on Compact‑200‑series dedicated baseplate and match with corresponding termination assembly. Widely used for original Foxboro DCS equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation.