Foxboro FBM219 Control Processor Module

Technical Specifications:

• Processor Architecture: 32-Bit RISC (Reduced Instruction Set Computing)
• Clock Speed: 33 MHz or higher
• Memory — RAM: 8 MB minimum (volatile, runtime data storage)
• Memory — Flash: 4 MB minimum (non-volatile, program and configuration storage)
• Scan Cycle Time: Configurable from 50 ms to 500 ms depending on application complexity
• Program Execution: Supports IEC 61131-3 compliant control logic, function blocks, sequential function charts (SFC), structured text, ladder logic
• Redundancy Support: Fully supports hot-standby redundant configuration with FBM214 or equivalent partner module
• Communication Backplane: Dual redundant backplane interface at 10 Mbps
• Operating Temperature: 0°C to 60°C (32°F to 140°F)
• Humidity Range: 5% to 95% non-condensing

Functional Features:

• Executes PID control loops, cascade control, feedforward control, ratio control, and advanced regulatory control
• Runs sequential batch logic and state-based control programs
• Performs real-time data acquisition, filtering, scaling, and alarm processing
• Manages event logging, historical data recording, and trend archiving
• Supports online programming changes without system shutdown
• Provides deterministic scan execution for time-critical control applications

Performance Parameters:

• Maximum Control Loops: Up to 2,000 loops per processor
• Maximum I/O Points: Up to 8,000 points per processor (depending on module configuration)
• Data Throughput: Up to 10,000 transactions per second
• Alarm Processing Rate: Up to 5,000 alarms per second

Structural Characteristics:

• Form Factor: Standard Eurocard-sized module (160 mm × 233 mm)
• Mounting: Horizontal rack mount in Foxboro I/A Series chassis
• Connectors: Dual redundant backplane connectors (J1 and J2) for failover capability
• Front Panel: LED status indicators for RUN, FAULT, STANDBY, and COMM status
• Weight: Approximately 0.8 kg (1.76 lbs)

Working Principle:
The FBM219 continuously scans all connected I/O modules via the redundant backplane. During each scan cycle, it reads input values, executes the configured control program (function blocks, logic, calculations), writes output values to I/O modules, and communicates with operator stations and historian databases. The dual-processor architecture in redundant mode ensures continuous operation — if the primary processor fails, the secondary takes over within one scan cycle with zero data loss.

Advantages & Highlights:

• Hot-swappable — module replacement without system shutdown
• Deterministic real-time performance guaranteeing control loop timing accuracy
• Fully redundant architecture eliminating single points of failure
• Extensive library of pre-built function blocks reducing engineering time
• Seamless integration with all Foxboro I/A Series I/O and communication modules

Applicable Industries:

• Oil and Gas Refining
• Chemical and Petrochemical Processing
• Power Generation (Fossil and Nuclear)
• Pulp and Paper Manufacturing
• Pharmaceutical Production
• Water and Wastewater Treatment
• Mining and Mineral Processing

Installation Requirements:

• Must be installed in a Foxboro I/A Series compatible chassis (I/A Series Rack or Cabinet)
• Requires dual backplane connection for redundancy — both J1 and J2 connectors must be seated
• Adequate cooling airflow of minimum 100 CFM across the chassis is mandatory
• Grounding must follow IEC 61010 standards — chassis ground resistance below 1 ohm

Usage Precautions:

• Never insert or remove the module while the chassis power is ON unless the module is hot-swap rated (FBM219 is hot-swap capable)
• Ensure firmware version compatibility with all other modules in the chassis before installation
• Static discharge precautions (ESD wrist strap) required during handling
• Verify redundancy partner status (FBM214) before commissioning
• Do not exceed maximum chassis module count — consult Foxboro I/A Series chassis specification sheet