Foxboro FBM10/15 Mixed Discrete I/O Fieldbus Module

Foxboro FBM10/15 mixed discrete I/O module,8‑channel 120VAC DI & 8‑channel relay DO,pre‑configured for FBM15 expansion assembly,for legacy I/A‑Series DCS interlock‑loop maintenance retrofit
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Products Description


Foxboro FBM10/15 Mixed Discrete I/O Fieldbus Module


Technical Specifications

Model:FBM10/15

Brand:Foxboro

System compatibility:I/A Series DCS legacy FBM fieldbus I/O subsystem

Function:Mixed discrete I/O fieldbus module,8‑channel 120VAC discrete input acquires field switch status;8‑channel relay‑contact discrete output drives field actuators,pre‑configured for FBM15‑style expansion assembly for I/O capacity expansion

Installation:Baseplate‑mount installation,mated with dedicated FBM baseplate and FBM15 expansion assembly

I/O channel:8 ×120VAC discrete input;8 × relay‑contact discrete output

Circuit feature:Group‑wise galvanic isolation,relay channel over‑current protection

Feature:Support hot‑swap online replacement without subsystem power‑off,works with FBM15 expansion assembly for additional I/O points

Diagnostic:Front‑panel multi‑color LED indicators for module power,running status and fieldbus communication fault

Power supply:Powered via FBM baseplate backplane

Protection:Transient surge protection for signal terminals

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℃ ~ +55℃

Storage temperature:‑40℃ ~ +85℃

Relative humidity:5%‑95% non‑condensing

Weight:1.02kg

Dimensions:36mm ×128mm ×144mm

Certification:CE,UL

MTBF:>83000 hours


Built‑in function

FBM10/15 mixed discrete I/O module collects AC switch‑status signals and outputs relay‑contact control signals for Foxboro I/A‑Series DCS system. It is pre‑configured to cooperate with FBM15 expansion assembly to expand I/O quantity. Isolated‑channel design improves anti‑interference performance in complex industrial cabinet environment. Hot‑swap supports online module replacement,widely applied for pump,motor interlock‑control‑loop maintenance in petrochemical,chemical and power‑plant facilities.

Product Brief

FBM10/15 belongs to Foxboro I/A Series legacy DCS mixed‑discrete‑I/O spare‑part family,obsolete original baseplate‑mount mixed discrete I/O module component. Must match with corresponding FBM baseplate and FBM15 expansion assembly. Widely used for original Foxboro DCS equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation.


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