Description
Product Core Brief
- Model: FBM207C
- Brand: FOXBORO
- Series: I/A Series DCS
- Core Function: Acquires 16 channels of 48V DC contact sense signals for discrete process monitoring.
- Product Type: Contact Sense Input Module
- Key Specs: 16-Channel, 48V DC, P0917GY
- Condition: New Original (New Surplus)
Key Technical Specifications
| Parameter | Value |
|---|---|
| Module Type | Contact Sense Input Module |
| Channel Count | 16 Isolated Discrete Inputs |
| Input Voltage | 48 V DC (±15%) |
| Alternate Part Number | P0917GY |
| System Compatibility | FOXBORO I/A Series DCS |
| Communication | Redundant 2 Mbps Module Fieldbus |
| Filter Time | Configurable (0, 4, 8, 16, 32 ms) |
| Isolation | Channel-to-Channel & Channel-to-Ground |

FOXBORO FBM207C
Product Introduction
Reliable discrete signal acquisition is essential for accurate sequence control and equipment status monitoring. The FOXBORO is a 16-channel contact sense input module designed specifically for the I/A Series DCS. It provides 48V DC excitation to field contacts and reliably detects open/closed states with configurable debounce filtering to reject electrical noise.
This module communicates via a redundant 2 Mbps module fieldbus, ensuring data integrity even during communication path faults. Field deployments confirm that using the exact specification prevents fieldbus communication errors and ensures proper contact detection thresholds for 48V DC field devices.
Key Selling Points & Differentiators
- Exact I/A Series Compatibility: Designed specifically for FOXBORO I/A Series DCS; not recommended for third-party or non-I/A Series backplanes due to proprietary fieldbus protocols.
- 48V DC Contact Sensing: Provides internal 48V DC excitation for field contacts, eliminating the need for external power supplies in discrete input applications.
- Configurable Noise Filtering: Features selectable debounce times (0-32 ms) to balance between fast response and field noise rejection.
- Rigorous Live Bench Testing: Every unit undergoes a 24-hour continuous load test with fieldbus communication verification and full-scale contact simulation before shipping.
- New Surplus Availability: Factory-sealed condition with verified source traceability, bypassing typical OEM lead times for discontinued I/A Series hardware.
- Anti-Counterfeit Verification: Serial numbers are checked against manufacturer databases during incoming inspection to guarantee authenticity.

FOXBORO FBM207C
FAQ
The is designed for the I/A Series platform, but compatibility with specific sub-platforms depends on firmware and backplane revision. Always verify your system’s exact configuration and check the I/A Series hardware compatibility matrix before ordering. Mixing incompatible FBM revisions can cause fieldbus communication failures.
No. The FBM207B provides 24V DC excitation for contact sensing, while the provides 48V DC excitation. Substituting a different voltage variant will result in unreliable contact detection or failure to register closed contacts. Always match the exact model number to your field device requirements.
Do I need to configure the fieldbus address before installing?
Yes. The typically requires fieldbus address configuration via DIP switches or software configuration in the I/A Series control builder. I always recommend backing up your control strategy, verifying the fieldbus address matches your system design, and running a fieldbus scan after installation to confirm communication.
What happens if I connect a 24V DC contact to this module?
The is designed for 48V DC contact sensing. While 24V contacts may sometimes be detected, the input threshold is optimized for 48V operation, leading to unreliable state detection. For 24V DC contacts, use the FBM207B variant instead. Always verify field device voltage before wiring.
Is there a warranty on this new surplus unit?
Yes. All new surplus modules come with a standard 12-month functional warranty. If the unit fails during normal operation within that period, we provide a direct replacement. We also include our internal test report with every shipment so you can verify the 24-hour load test and fieldbus communication results before installation.


