Description
Foxboro P0971FB
Technical Specifications
- Module Type: P0971FB
- Fieldbus Type: Foxboro Series 200 Fieldbus
- Data Rate: 2 Mbps redundant HDLC
- FBM Capacity: Supports up to 32 FBMs (expandable to 128 with FEM100)
Functional Features
- High-Speed Fieldbus Communication: Manages data exchange with up to 32 FBMs at 2 Mbps.
- Redundant Bus Architecture: Dual redundant fieldbus paths ensure fault tolerance.
- FBM Management: Handles FBM initialization, configuration, and diagnostic data collection.
- Data Integrity Verification: Bit-by-bit matching ensures accurate data transmission.
Application Scenarios
Installed in every I/A Series controller node to provide the physical and logical interface to field I/O modules.
Performance Parameters
- Operating Temperature: 0℃ to 60℃
- Ingress Protection: IP20
- Bus Utilization: Optimized bus scheduling for maximum I/O throughput.
Material Composition
Robust industrial enclosure with high-reliability fieldbus transceivers and precision timing circuits.
Structural Characteristics
Standard FBM form factor with dual fieldbus connectors for redundant bus connections. Front panel displays bus activity and fault indicators.
Working Principle
Acts as the fieldbus master, polling connected FBMs for input data, transmitting output commands, and managing bus arbitration and error recovery on the redundant fieldbus network.
Installation Requirements
Install on a compatible baseplate. Connect both primary and secondary fieldbus cables to the redundant bus network.
Usage Precautions
Verify fieldbus termination resistors are properly installed at both ends of the bus. Never disconnect both bus cables simultaneously




