Key Technical Specifications
- Product Model: FBM232 P0926GW
- Manufacturer: Foxboro
- Product Type: Field Device System Integrator (FDSI) Module
- System Platform: Foxboro I/A Series / EcoStruxure Foxboro DCS
- Network Speed: 10 Mbps or 100 Mbps Copper Ethernet
- Physical Interface: RJ-45 Connector
- Device Capacity: Up to 64 external field devices per module
- Data Capacity: Up to 2000 Distributed Control Interface (DCI) block connections
- Scan Rate: Control station access frequency up to 500 ms
- Backplane Connection: Redundant 2 Mbps Module Fieldbus
- Environmental Rating: G3 Class (Harsh Environment)
- Configuration Tool: FDSI Configurator (XML-based port/device profiles)
Product Introduction
The Foxboro FBM232 P0926GW is a Field Device System Integrator (FDSI) module engineered for the I/A Series distributed control system. It provides a single-port Ethernet interface that bridges third-party or remote field I/O devices directly into the Foxboro DCS control database.This module dynamically downloads protocol-specific software drivers from the available library to communicate with up to 64 external devices over a 10/100 Mbps copper network. It supports up to 2000 DCI blocks for reading and writing analog or digital data, translating it seamlessly for operator displays and plant management functions. (Always verify the specific third-party device protocol and confirm that a compatible software driver exists in the Foxboro library before deployment).
Installation & Configuration Guide
Preparation (10 min)
Verify the target FBM slot in the I/A Series chassis is powered down. Gather an RJ-45 Ethernet cable, a 10/100 Mbps Ethernet switch or hub (if connecting multiple devices), and the FDSI Configurator software on your engineering workstation.Removal (5–10 min)
Disconnect the RJ-45 Ethernet cable from the front of the module. Release the module from the backplane connector. Slide the FBM232 P0926GW straight out of the chassis. Inspect the backplane pins for debris or corrosion.Installation (10 min)
Align the new FBM232 P0926GW with the chassis guides. Push firmly and evenly until fully seated on the backplane. Connect the RJ-45 cable to the front port. If connecting multiple devices, route the cable through an Ethernet switch or hub first.Power-On & Test (10 min)
Restore power to the chassis. Use the FDSI Configurator to set the port communication parameters (IP address, DHCP, etc.). Download the appropriate I/O software driver to the module. Verify device communication status and confirm data is populating correctly in the DCS database.
Troubleshooting Quick Reference
- No link LED on RJ-45 port: Verify the Ethernet cable is functional. Ensure the connected switch/hub supports 10/100 Mbps auto-negotiation.
- Devices not communicating: Confirm the correct protocol driver is loaded on the FBM232. Check that device IP addresses are on the same subnet as the module.
- Data not updating in DCS: Verify the DCI block configuration matches the device’s data map. Check that the control station scan rate is configured correctly (max 500 ms).
- Module fault LED lit: Check the backplane connection. Reseat the module. Verify the redundant 2 Mbps fieldbus paths are active.
- Intermittent communication: Inspect the Ethernet cable for physical damage. Ensure the G3 harsh environment sealing on the front panel is intact.
Dimensions, Mounting & Wiring Notes
- Size: Standard I/A Series FBM form factor
- Mounting: Backplane slot with front-panel retention; field-mounted enclosure rated for G3 environments
- Wiring: Single RJ-45 front-panel Ethernet port. Connects to redundant 2 Mbps module fieldbus via backplane. Use shielded Ethernet cable for noisy environments.
FAQ
Can this module talk to any third-party device?
The FBM232 P0926GW is hardware-agnostic, but it requires a specific software driver for each device protocol. Check the Foxboro protocol library to confirm your target device is supported before ordering.Do I need a switch to connect devices?
If you are connecting more than one field device, yes. The FBM232 has a single RJ-45 port. You must use an Ethernet switch or hub to connect up to 64 devices.Is this the same as the FBM233?
No. The P0926GW (FBM232) is a single-port Ethernet module. The FBM233 (P0926GX) supports redundant Ethernet connections. Verify your system architecture requirements before selecting.How fast does it scan the connected devices?
The control station can access FBM232 data at a frequency of up to 500 ms. Actual performance depends on the number of connected devices and their data layout.Do you test the Ethernet communication before shipping?
Yes. Every FBM232 P0926GW is installed in a live I/A Series test rack. We verify the RJ-45 port negotiates link speed correctly and confirm backplane communication on the redundant 2 Mbps fieldbus.Can I configure this module offline?
Yes. Use the FDSI Configurator to set up XML-based port and device profiles offline. The configuration and software driver are then downloaded to the module when it is connected to the live system.







