Description
The FOXBORO FBM222 is an advanced 8-channel discrete output module within the Foxboro I/A Series distributed control system, designed for high-density control of field actuators, solenoid valves, motor starters, and other discrete field devices. This robust fieldbus module provides reliable switching capability for industrial control applications requiring multiple output points in a compact form factor. The FOXBORO FBM222 features eight individually isolated output channels, each capable of switching 24-48 VDC loads with built-in protection against inductive kickback and overload conditions. Each channel includes comprehensive status indication and diagnostic capabilities that monitor output health, load status, and wiring integrity, ensuring reliable operation in demanding industrial environments.
Engineered for critical control applications, the FOXBORO FBM222 incorporates advanced switching technology that provides long service life and reliable operation even with inductive loads. The module features individual channel isolation that prevents cross-talk and protects the control system from field-side electrical faults. The FOXBORO FBM222 is designed with sophisticated diagnostics that detect open load conditions, short circuits, and overload situations, providing early warning of potential issues before they affect process operations. Its high channel density and robust design make it particularly suitable for applications such as motor control centers, valve manifolds, and automated machinery where multiple discrete outputs need to be controlled with high reliability and comprehensive diagnostics.

FBM222 FOXBORO
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | FBM222 |
| Manufacturer | FOXBORO (Emerson) |
| Product Type | 8-Channel Discrete Output Module |
| Output Channels | 8 individually isolated channels |
| Output Type | Solid-state DC output |
| Output Voltage Range | 24-48 VDC |
| Maximum Load Current | 0.5A per channel continuous |
| Maximum Inrush Current | 2.0A for 100ms |
| Leakage Current | < 0> |
| Voltage Drop | < 1> |
| Response Time | < 1> |
| Isolation | 500V AC channel-to-channel and field-to-system |
| Protection Features | Short circuit protection, overload protection, reverse polarity protection |
| Status Indication | Per-channel LED indicators |
| Diagnostic Features | Load monitoring, fault detection |
| Power Supply | 5V DC from fieldbus (FBM bus) |
| Field Power | 24-48 VDC external field supply |
| Power Consumption | 3.0W typical |
| Operating Temperature | -40°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 5% to 95% non-condensing |
| Safety Standards | UL, cUL, ATEX, IECEx |
| EMC Compatibility | Meets IEC 61326 industrial requirements |
| Connection Type | Removable terminal block |
| MTBF | >400,000 hours per IEC 61709 |
Main Features and Advantages
The FOXBORO FBM222 offers several advanced features that ensure reliable performance in discrete output applications. High reliability switching: The solid-state output design provides long service life and reliable operation with both resistive and inductive loads, eliminating contact wear and arcing associated with mechanical relays. Comprehensive protection: Each output channel includes built-in protection against short circuits, overloads, and reverse polarity, safeguarding both the module and connected field devices. The FOXBORO FBM222 features advanced diagnostic capabilities that monitor load current, detect open circuit conditions, and identify short circuit faults, enabling proactive maintenance and reducing downtime.
Individual channel isolation prevents cross-talk between outputs and protects the control system from field-side electrical faults. The module supports high-speed switching with response times under 2 milliseconds, making it suitable for applications requiring rapid control actions. Status indication LEDs for each channel provide immediate visual feedback for quick troubleshooting and status verification. The FOXBORO FBM222 also features hot-swappable capability when proper procedures are followed, allowing for module replacement without system shutdown. These features combine to make the module an ideal solution for applications requiring reliable, high-density discrete output control with comprehensive diagnostics and protection.
Application Field
The FOXBORO FBM222 is designed for a wide range of industrial control applications requiring multiple discrete outputs. In manufacturing automation, the module is used for controlling solenoid valves, pneumatic actuators, and motor starters in production machinery and assembly lines. The FOXBORO FBM222 is extensively employed in material handling systems for conveyor control, sorting mechanisms, and automated guided vehicle (AGV) interface control. In process industries, the module controls actuated valves, pump controls, and safety shutdown devices across various production units.
The water and wastewater treatment industry utilizes the FOXBORO FBM222 for controlling chemical dosing pumps, valve actuators, and filter backwash systems throughout treatment processes. The module is also found in building automation systems for controlling HVAC equipment, lighting systems, and access control devices. The FOXBORO FBM222 is particularly suitable for applications such as motor control centers, where multiple motor starters and control devices need to be operated from a compact control module. Its robust design and diagnostic capabilities make it ideal for applications where reliability and maintenance efficiency are critical requirements.

FBM222 FOXBORO
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