Description
Foxboro FBM231
Technical Specifications
- Product Type: Foundation Fieldbus H1 Interface Module.
- Protocol: Foundation Fieldbus H1 (IEC 61158-2).
- Ports: Dual independent H1 segment ports.
- Backplane: Redundant 2 Mbps module fieldbus interface.
Functional Features
- Device Configuration: Allows full configuration and calibration of FF devices from the engineer workstation.
- Scheduled Communication: Manages deterministic, scheduled communication for control loops.
- Unscheduled Communication: Supports on-demand communication for diagnostics and parameter changes.
- Redundancy: Supports redundant module configurations for high-availability segments.
Application Scenarios
Core component in any Foxboro I/A Series system utilizing Foundation Fieldbus technology for field-level instrumentation and control.
Performance Parameters
- Baud Rate: 31.25 kbps.
- LAS Functionality: Integrated Link Active Scheduler for segment coordination.
- Signal Conditioning: Built-in signal conditioning for reliable communication over long distances.
Material Composition
Durable extruded aluminum housing with EMI shielding. Internal electronics are designed for industrial temperature ranges and harsh environments.
Structural Characteristics
Standard FBM module size with front-panel connectors for H1 segments. Status LEDs provide immediate visual feedback on port activity and module health.
Working Principle
The FBM231 implements the Foundation Fieldbus Data Link Layer, managing the token-passing protocol and scheduled communication cycles. It translates between the I/A Series internal data format and the FF H1 protocol.
Installation Requirements
Install on a compatible FBM baseplate. Connect H1 segment cables using proper connectors and ensure termination. Follow FF wiring guidelines meticulously.
Usage Precautions
- Never connect H1 segments directly to power supplies; use approved fieldbus power conditioners.
- Verify LAS redundancy configuration if applicable.
- Monitor segment health indicators regularly.
