Foxboro FBM33 (P0912MJ) – Control Processor Module

Specifications & User Guide (Copy‑Ready English)

General

Model: FBM33 (also known as P0912MJ)

System: Foxboro I/A Series / Evo Process Automation System

Type: High‑performance fieldbus control processor module

Function: Process control, logic, timing, sequential control, data acquisition

Redundancy: 1:1 hot‑swap redundant capable (controller & power)

Hot Swap: Supported (no system shutdown)

Certification: CE, UL, CSA, ATEX; Class 1 Div 2 / Zone 2

Environment: Class G3 (harsh industrial)

Operating Temp: 0 °C to +60 °C

Storage Temp: −40 °C to +85 °C

Humidity: 5–95 % non‑condensing

Enclosure: Die‑cast aluminum, IP20 rated

Dimensions: 140 mm × 165 mm × 45 mm

Weight: 0.6 kg

Processor & Memory

CPU: 32‑bit industrial RISC processor

Execution Speed: 0.1 μs / Boolean instruction; 0.5 μs / floating‑point instruction

Program Memory: 8 MB

Data Memory: 4 MB

Max I/O Points: 256 (local + remote)

Expansion: Up to 128 FBMs via FEM100 extension module

Communication

Ethernet: 10/100 Mbps (fiber port), redundant

Protocols: Modbus TCP/IP, ControlNet, EtherNet/IP, Foxboro proprietary

Fieldbus: Redundant 2 Mbps backplane (I/A Series)

Max Field Devices: 64 per module

Data Connections: Up to 2000 DCI blocks

Power

Supply: 24 VDC (±5% / −10%), redundant

Consumption: 10 W (max)

Heat Dissipation: 10 W (max)

Basic Installation & Usage

Mounting

Install on standard I/A Series DIN rail or baseplate.

Secure module with latch; ensure full seating.

Wiring

Connect 24 VDC redundant power to terminal block.

Connect Ethernet fiber port to control network switch.

Connect fieldbus cable to backplane I/O baseplate.

Separate low‑signal and high‑power cables for noise reduction.

Configuration (I/A Series / Evo Software)

Assign IP address and network parameters.

Enable redundancy (primary/secondary role).

Configure I/O scan rate and control logic.

Set up communication protocols (Modbus, etc.).

Download control program to module memory.

Operation

Check LED indicators: RUN (green) = normal; FAULT (red) = error.

Monitor processor status, memory usage, and network load in HMI.

Verify control loops, alarms, and interlocks.

Maintenance

Hot‑swap faulty module (no shutdown required).

Update firmware via I/A Series software.

Periodically inspect wiring, connectors, and power supply.

Typical Applications

Centralized process control in chemical, power, oil & gas, and pharmaceutical plants.

High‑speed logic and sequential control for manufacturing lines.

Data acquisition and integration of temperature, pressure, and flow measurements.

System migration and upgrade for legacy Foxboro I/A Series installations.