Foxboro FBMSVH (Fieldbus Signal Valve Module)

Copy-Ready English Specification

General

Model: FBMSVH

System: Foxboro I/A Series DCS

Type: Fieldbus Signal Valve Control Module

Role: High‑precision valve positioning & signal conditioning for smart actuators

Redundancy: Supports redundant pair operation

Hot Swap: Yes

Certification: CE, UL, CSA, ATEX, FM; Class I Div 2 / Zone 2

Environment: Class G3 (severe industrial)

Operating Temp: −40 °C to +70 °C

Storage Temp: −40 °C to +85 °C

Humidity: 5–95 % non‑condensing

Dimensions: 115 mm × 45 mm × 105 mm

Weight: 0.35 kg

I/O & Signal

Control Output: 4–20 mA (valve position control)

Input Signals: 4–20 mA, 0–10 V, RTD (PT100/1000), Thermocouple (J/K/T/E)

Accuracy: ±0.05 % of span

Stability: ±0.01 % of span/year

Isolation: Channel‑to‑channel & channel‑to‑ground (600 VAC 1 min)

Communication

Protocols: HART 5/7, Foundation Fieldbus H1

Baud Rate: 31.25 kbps (HART/FF)

Backplane: I/A Fieldbus (2 Mbps)

Diagnostics: LED status (RUN/FAULT/COMM) + HART alarm logging

Electrical

Supply: 24 VDC ±10 % (redundant capable)

Consumption: 8 W (single)

Loop Power: 12–42 VDC (software configurable)

Key Features

Valve Positioning: Closed‑loop control for HART/FF smart valves

Multi‑Signal Input: Universal analog/RTD/TC for process variables

Dual Protocol: HART & Foundation Fieldbus integration

Harsh Environment: Wide temp range & G3 industrial rating

Per‑Channel Isolation: Eliminates crosstalk & ground loops

Compact DIN Rail: Space‑saving for cabinet installation

Applications

Smart Valve Control: HART/FF positioners, actuators, I/P converters

Process Loops: Pressure, temperature, flow, level control

High‑Reliability Industries: Power, oil & gas, chemical, pharmaceutical

System Migration: Integrate smart field devices into I/A Series

FBMSVH vs FBM46 vs FBMSSW

FBMSVH: Fieldbus valve control (HART/FF) – precision valve positioning

FBM46: Redundant HART I/O (8AI+4AO) – general analog HART

FBMSSW: System switch (IAH/HSR) – redundant controller‑to‑I/O communication