Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | FOXBORO / Schneider Electric |
| Model | FBM219 |
| Part Number | RH916RH |
| Product Type | Discrete Input Fieldbus Module |
| System Platform | Foxboro I/A Series |
| Function | Digital field signal acquisition |
| Signal Type | Discrete ON/OFF input |
| Channel Capacity | Multi-channel digital input (configuration dependent) |
| Field Interface | Foxboro field termination assembly |
| Communication Interface | Foxboro Fieldbus |
| Isolation | Field-to-system isolation |
| Diagnostics | Module and channel status diagnostics |
| Mounting | Foxboro FBM carrier |
| Configuration Tool | Foxboro I/A Series engineering tools |
| Application | Process control, monitoring, alarms, interlocks |
Product Introduction
FOXBORO FBM219 RH916RH Overview
The FOXBORO FBM219 RH916RH is a discrete input Fieldbus Module designed for Foxboro I/A Series distributed control systems. It provides the interface between plant field devices and the control system by acquiring discrete signals from switches, contacts, and other binary devices used throughout industrial processes.
The FOXBORO FBM219 RH916RH operates as part of the Foxboro Fieldbus Module architecture, where individual FBM units perform dedicated signal acquisition and conditioning functions before transferring process information to the control processor. The module helps simplify system expansion by allowing field signals to be distributed through modular I/O structures rather than direct controller wiring.
The FOXBORO FBM219 RH916RH is commonly installed in process industries where reliable monitoring of discrete field conditions is required. Typical applications include motor status feedback, valve position indication, alarm contacts, equipment permissive signals, and process interlocks. Replacement requires verification of the installed I/A Series hardware revision, FBM carrier type, field termination assembly, and control database configuration.

FBM219-RH916RH
Application Scenarios & Field Pitfalls (The Engineer’s Perspective)
Engineering Pain Point
A plant operator sees missing equipment status indications, incorrect alarms, or unexpected interlock conditions. The field device appears operational, but the DCS does not receive the correct discrete state.
The troubleshooting path should include:
- Field contact operation
- Input voltage measurement
- Terminal assembly wiring
- FBM module diagnostics
- Fieldbus communication status
- I/A Series database configuration
The FOXBORO FBM219 RH916RH is part of a complete I/O chain, and the issue may exist outside the module itself.
Typical Applications
Oil and Gas Facilities
Used for:
- Pump running feedback
- Valve position monitoring
- Emergency shutdown status
- Equipment permissive signals
Chemical Processing Plants
Applied in:
- Reactor interlocks
- Motor protection signals
- Alarm monitoring systems
Power Generation
Used for:
- Breaker status monitoring
- Auxiliary equipment feedback
- Turbine support systems
Manufacturing Systems
Applied for:
- Machine status signals
- Safety interlocks
- Production equipment monitoring
Technical Pitfalls to Avoid
1. Verify FBM Model Compatibility
Foxboro FBM modules may appear similar but differ in:
- Input type
- Channel arrangement
- Termination compatibility
- System revision support
Confirm the exact FBM model before replacement.
2. Check Field Termination Assembly
The FBM module works together with specific termination assemblies. Verify:
- Terminal block type
- Wiring configuration
- Field cable assignment
Incorrect termination matching can create channel faults.
3. Review I/A Series Configuration
Before replacement, save:
- FBM database configuration
- Point assignments
- Alarm parameters
- Logic references
The hardware swap does not automatically restore application configuration.
4. Investigate External Causes
Common digital input problems include:
- Failed field switches
- Broken cables
- Incorrect loop voltage
- Grounding issues
Related Products
- FOXBORO FBM217 RH914TR
Analog input Fieldbus Module used in Foxboro I/A Series systems. - FOXBORO FBM207B P0914WH
Analog input/output interface module for Foxboro process control systems. - FOXBORO FBM203 P0914SV
Fieldbus Module used for Foxboro I/A Series I/O applications. - FOXBORO FCP270
Field Control Processor used in Foxboro I/A Series and Foxboro Evo architectures. - FOXBORO FCP280
Field Control Processor for newer Foxboro distributed control platforms. - FOXBORO I/A Series System
Distributed control system platform used in continuous process industries.
