Description
Product Core Brief
- Model: FBM204
- Brand: FOXBORO
- Series: I/A Series DCS
- Core Function: Provides 4 channels of 0-20mA DC analog inputs and 4 channels of 0-20mA DC analog outputs in a single module.
- Product Type: Analog Input/Output Interface Module
- Key Specs: 4 AI / 4 AO Channels, 0-20mA DC, P0914SY
- Condition: New Original (New Surplus)
Key Technical Specifications
| Parameter | Value |
|---|---|
| Module Type | Analog Input/Output Interface Module |
| Input Channels | 4 x 0-20 mA DC |
| Output Channels | 4 x 0-20 mA DC |
| Alternate Part Number | P0914SY |
| System Compatibility | FOXBORO I/A Series DCS |
| Communication | Redundant 2 Mbps Module Fieldbus |
| Data Conversion | Sigma-Delta (25 ms update rate) |
| Isolation | Channel-to-channel and channel-to-ground |
FOXBORO FBM204
Product Introduction
Combining analog inputs and outputs in a single module saves valuable rack space while maintaining signal integrity. The FOXBORO is a combined analog I/O interface module for the I/A Series DCS, featuring four 0-20mA DC input channels and four 0-20mA DC output channels. It uses Sigma-Delta data conversion with a 25 ms update rate to deliver high-precision process monitoring and control.
This module communicates via a redundant 2 Mbps module fieldbus, ensuring reliable data exchange even if one communication path fails. Field deployments confirm that the ‘s channel isolation and configurable fault-safe options (hold/last known value) make it ideal for critical control loops where signal integrity and safe failure modes are paramount.
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.
- Combined I/O Efficiency: Integrates 4 analog inputs and 4 analog outputs in one module, reducing rack footprint and wiring complexity.
- High-Precision Sigma-Delta Conversion: Achieves ±0.03% accuracy with 25 ms update rate and configurable integration periods for noise rejection.
- Rigorous Live Bench Testing: Every unit undergoes a 24-hour continuous load test with fieldbus communication verification and full-scale I/O signal 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 FBM204
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 FBM203 is an analog input-only module, while the combines both analog inputs and outputs. Substituting a different module type will result in missing output channels and control loop failures. Always match the exact model number to your application 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 4-20mA transmitter to this module?
The is strictly rated for 0-20mA DC input. While 4-20mA signals fall within the 0-20mA range, you must configure the input scaling in the control strategy to account for the live-zero (4mA = 0% process value). Connecting a voltage signal directly to the current input terminals will damage the input circuitry.
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.
