Foxboro FBM206 Pulse Input Fieldbus Module

Technical Specifications

Model:FBM206

Brand:Foxboro

System compatibility:I/A Series DCS FBM200 series fieldbus I/O subsystem,works with FCP/FCM controller,matched with P0916CQ termination assembly and corresponding pre‑terminated cable

Function:8‑channel galvanically isolated pulse input fieldbus module,acquires pulse and frequency signals from field‑side pulse‑output flow meters,tachometer and encoder sensors,supports pulse counting,frequency measurement and pulse‑totalizer function,configurable pulse scaling and filtering parameters,7‑27VDC pulse signal input range,max 25kHz per‑channel input frequency

Installation:Baseplate‑mount installation,mated with dedicated FBM baseplate,P0916CQ termination assembly and matched cable assembly

Input channel:8‑channel pulse input,7‑27VDC signal range,channel‑to‑channel galvanic isolation,2500V RMS isolation rating

Circuit feature:High‑speed pulse capture circuit,per‑channel over‑voltage protection,pulse signal fault detection,10kΩ channel input impedance

Feature:Support hot‑swap online replacement without subsystem power‑off,redundant 2Mbps fieldbus communication with FCP/FCM controller

Diagnostic:Front‑panel multi‑color LED indicators for power and fieldbus communication status

Power supply:24VDC via FBM baseplate backplane

Protection:Transient surge absorption for each signal terminal

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:0℃ ~ +60℃

Vertical operating temperature:‑20℃ ~ +85℃

Storage temperature:‑40℃ ~ +85℃

Relative humidity:5%‑95% non‑condensing

Weight:1.00kg

Dimensions:36mm ×128mm ×144mm

Certification:CE,UL

Built‑in function

FBM206 pulse input module converts field‑side pulse‑frequency sensor signals to digital process data for Foxboro I/A‑Series DCS system. Channel‑by‑channel galvanic isolation effectively suppresses ground‑loop interference inside instrument cabinet. It implements pulse counting and frequency calculation for flow‑rate and rotational‑speed monitoring. Fault detection helps locate abnormal field‑wiring conditions rapidly. Hot‑swap supports online module replacement without system shutdown,widely applied for flow‑meter,turbine‑speed and rotating‑equipment‑monitoring‑loop maintenance in petrochemical,chemical and power‑plant facilities.

Product Brief

FBM206 belongs to Foxboro I/A Series legacy DCS pulse‑input spare‑part family,obsolete original baseplate‑mount pulse‑frequency‑acquisition module component. Must match with corresponding FBM baseplate,P0916CQ termination assembly and matched cable. Widely used for original Foxboro DCS equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation.