Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | FBM207C |
| Part Number | RH917GY |
| Manufacturer | Foxboro |
| Product Family | I/A Series 200 Series FBM |
| Product Type | Channel Isolated Contact Sense Input Module |
| Input Channels | 16 channels |
| Input Type | 48VDC contact sense |
| Contact Input Range | Contact open / contact closed |
| Open Circuit Voltage | 48VDC ±15% |
| Short Circuit Current | Approx. 3.2 mA |
| Isolation | Galvanically isolated between channels and ground |
| Communication Interface | Redundant 2 Mbps Fieldbus |
| Power Supply | 24VDC redundant supply |
| Power Consumption | Approx. 5 W maximum |
| Mounting | Modular baseplate, DIN rail or rack mounting |
| Module Dimensions | Approx. 102 × 45 × 104 mm |
| Operating Temperature | -40°C to +70°C |
| Humidity | 5–95% RH non-condensing |
| Termination Connection | 37-pin D-sub termination cable interface |
Product Introduction
Foxboro FBM207C RH917GY Product Introduction
Foxboro FBM207C RH917GY is a 16-channel isolated contact sense input module designed for Foxboro I/A Series distributed control systems. It collects discrete signals from field devices such as switches, alarms, and equipment status contacts, then communicates the input state through the redundant Fieldbus network to the control processor.
The value of Foxboro FBM207C RH917GY is maintaining existing I/A Series installations where reliable discrete signal acquisition is required without changing field wiring architecture. Before replacement, verify the termination assembly, input voltage level, module firmware, and system configuration.
FBM207C RH917GY
Application Scenarios & Field Pitfalls (The Engineer’s Perspective)
Engineering Pain Point
A compressor package suddenly generates multiple false alarms after maintenance. The field switches test correctly, wiring continuity is confirmed, but the DCS continues showing incorrect equipment status.
The investigation often moves toward the discrete input layer. A failed input channel, incorrect termination assembly, or configuration mismatch can create confusing symptoms because the control logic itself may still be operating normally.
Typical Applications
- Oil & Gas – Monitoring valve limit switches, motor starters, emergency shutdown contacts, and package equipment alarms.
- Chemical Processing – Collecting pump status, interlock feedback, and equipment protection signals.
- Power Generation – Turbine auxiliary monitoring, breaker status feedback, and protection system interfaces.
- Water Treatment – Pump running status, level switch monitoring, and local equipment alarms.
Technical Pitfalls to Avoid
- Verify 48VDC Contact Configuration
The FBM207C is designed for 48VDC contact sensing. Do not substitute it directly with FBM207 or FBM207b modules without checking voltage requirements. - Check the Correct Termination Assembly
The module depends on the proper termination hardware. A matching module with an incorrect termination assembly can result in wiring errors or failed input recognition. - Confirm Redundant Fieldbus Arrangement
The FBM207C communicates through the Foxboro Fieldbus network. Verify baseplate position, Fieldbus addressing, and redundancy configuration before returning the system to operation.
Related Products
- Foxboro FBM207 RH914TD
Original FBM207 voltage monitor/contact input module. Designed for DC voltage monitoring and different discrete input applications compared with the 48VDC version. - Foxboro FBM207B RH914WH
24VDC contact sense input module from the same family. Used where field contacts operate at 24VDC instead of 48VDC. - Foxboro FBM217 RH914TR
32-channel discrete input module. Used when higher point density is required for equipment status monitoring. - Foxboro FBM219 RH916RH
Combined discrete input/output module with 24 digital inputs and 8 digital outputs for mixed signal applications. - Foxboro FCP280 Controller
Modern Foxboro control processor platform supporting newer FBM communication architectures. - Foxboro FCM10E Fieldbus Communication Module
Fieldbus interface hardware used for communication between FBMs and control processors. - Foxboro 200 Series Baseplate
Modular mounting platform supporting FBM installation, Fieldbus connections, and redundant module arrangements. - Foxboro FBM202 RH926EQ
8-channel isolated thermocouple/mV input module for analog measurement applications.
