FBM07B/12B

Basic Information

Model: FBM07B/12B

Manufacturer: Foxboro / Schneider Electric

Type: 32 Channel Isolated DC Digital Input Module

System: I/A Series DCS

Status: Obsolete, spare part for replacement

Technical Specifications

Channel quantity: 32 isolated input channels

Input signal: 24VDC / 48VDC level and dry contact input

Logic threshold: Logic 0 ≤ 6VDC, Logic 1 ≥ 18VDC

Isolation: Full galvanic isolation between channel to channel and channel to ground

Response time: Less than 1ms

Debounce function: Software configurable

Fieldbus: 2 Mbps redundant fieldbus

Power supply: 24 VDC ±10%

Power consumption: Maximum 5.5 W

Operating temperature: -20°C to +60°C

Environmental rating: ISA S71.04 Class G3

Mounting: Standard I/A Series baseplate

Hot swappable: Available under redundant system configuration

Key Features

High density 32-channel isolated digital input.

Compatible with both dry contact closure and DC voltage input signals.

Galvanic isolation effectively eliminates ground loop and electromagnetic interference.

Supports redundant fieldbus communication for reliable signal transmission.

Built-in self-diagnostic circuit with LED status indicators.

Allows hot-swap online replacement without system downtime.

Application

Collect on-site discrete status of limit switches, relay contacts, pump and valve feedback signals.

Suitable for process interlock, equipment status monitoring and sequence logic control.

Widely used in chemical, petrochemical, power generation, oil & gas and water treatment industries.