Foxboro FBM216b Redundant‑Ready HART

Technical Specifications

Model:FBM216b(P0927AJ)

Brand:Foxboro

System compatibility:I/A Series DCS Compact‑200‑series fieldbus I/O subsystem,works with FCP/FCM controller,hot‑standby redundant pair with FBM214b on adjacent baseplate slots,matched with Compact‑200‑series baseplate,redundant adapter and corresponding termination assembly and pre‑terminated cable assembly

Function:Compact‑form‑factor redundant‑ready per‑channel galvanic‑isolated HART‑capable analog input fieldbus module,functionally identical to FBM214b,8‑channel 4‑20.4mA analog input for two‑wire field transmitters,per‑channel independent HART FSK modem for bidirectional communication with HART smart instruments,sigma‑delta A/D conversion,supports HART universal and common‑practice commands(burst mode not supported),max two HART digital messages per‑channel per second,configurable integration‑time and rate‑of‑change‑limit parameters,automatic primary‑backup switch‑over upon primary module fault without process‑loop interruption

Installation:Compact‑200‑series baseplate‑mount installation,only compatible with Compact‑200‑series baseplate,FBM214b and FBM216b occupy two adjacent slots with redundant adapter,share one common field termination assembly

Input channel:8‑channel 4‑20.4mA analog input,true per‑channel galvanic isolation,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,15‑bit resolution,analog accuracy ±0.075% full scale,update rate 100ms,per‑channel over‑voltage‑over‑current protection,sensor open‑circuit detection,complies with HCF_SPEC‑54 HART physical‑layer standard

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 eliminate cross‑channel ground‑loop interference,compact mechanical outline for cabinet space‑saving deployment,not interchangeable with standard‑200‑series FBM216(group‑isolated)

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,power consumption ≤3W 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:‑40℃ ~ +70℃

Storage temperature:‑40℃ ~ +85℃

Relative humidity:5%‑95% non‑condensing

Weight:0.32kg

Dimensions:45mm ×110mm ×115mm

Certification:CE,UL

Built‑in function:FBM216b redundant‑ready HART analog input module acts as hot‑standby backup for FBM214b in Foxboro I/A‑Series DCS critical‑loop applications. It acquires 4‑20mA analog process values and HART digital diagnostic‑parameter data from field smart transmitters. True per‑channel galvanic‑isolation avoids cross‑channel ground‑loop interference. When primary FBM214b fails,FBM216b automatically takes over without loop interruption. Hot‑swap supports online module replacement without system shutdown,widely applied for pressure,tank‑level and flow‑critical‑measurement‑loop maintenance in petrochemical,chemical and power‑plant facilities

Product Brief

FBM216b(P0927AJ) belongs to Foxboro I/A Series legacy DCS Compact‑200‑series‑redundant‑per‑channel‑isolated‑HART‑analog‑input spare‑part family,obsolete original compact‑form‑factor redundant‑ready 8‑channel HART‑communication‑input‑interface module component. Must pair with FBM214b,Compact‑200‑series dedicated baseplate and redundant adapter. Not interchangeable with standard‑200‑series group‑isolated FBM216. Widely used for original Foxboro DCS equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation