Foxboro FBM04 Analog Output Fieldbus Module

Technical Specifications

Model:FBM04

Brand:Foxboro

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

Function:Analog output fieldbus module,transforms controller digital data into standard 4‑20mA or 1‑5V analog signals for field valve positioners and actuators

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

Output channel:Multi‑channel analog output,4‑20mA / 1‑5V signal configurable

Circuit feature:High‑precision D/A conversion,channel over‑current protection

Feature:Support hot‑swap online replacement without subsystem power‑off

Diagnostic:Front‑panel multi‑color LED indicators for power and communication status,output open‑circuit fault detection

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:1.00kg

Dimensions:36mm ×128mm ×144mm

Certification:CE,UL

MTBF:>83000 hours

Built‑in function

FBM04 analog output module converts DCS digital control value into standard analog signal to drive field pneumatic or electric valve positioners. Open‑circuit detection helps identify wiring faults. Hot‑swap supports online module replacement without system shutdown,widely applied for regulating‑valve control‑loop maintenance in petrochemical,chemical and power‑plant facilities.

Product Brief

FBM04 belongs to Foxboro I/A Series legacy DCS analog‑output spare‑part family,obsolete original baseplate‑mount analog output module component. Must match with corresponding FBM baseplate assembly. Widely used for original Foxboro DCS equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation.