Description
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- Model Number: FBM230 (Part Number: P0926GU)
- Series: Foxboro I/A Series / EcoStruxure Foxboro DCS
- Communication Ports: 4 Isolated Serial Ports
- Supported Protocols: RS-232, RS-422, or RS-485 (Software configurable)
- Data Rates: 300 bps to 115.2 kbps
- Power Requirements: +24 V dc typical, 4 W maximum
- Regulatory Compliance: Class 1, Division 2 (Hazardous Locations)
- Country of Origin: USA
- Weight: 0.62 lbs (0.28 kg)
- Dimensions: 4.02 in x 1.77 in x 4.49 in (102 mm x 45 mm x 114 mm) The FOXBORO FBM230 P0926GU is a versatile 4-port serial communication interface designed for the I/A Series system, providing a robust bridge between the DCS and various third-party serial devices. Each of its four ports is independently isolated and can be software-configured to support different electrical standards, making it ideal for integrating PLC networks, weigh scales, motor protection relays, and power meters. The P0926GU variant is built for high-density mounting, allowing for high-speed data acquisition and control across distributed serial architectures while maintaining strict signal integrity and electrical protection.
Model Comparison
The FBM230 (P0926GU) is a multi-protocol serial module, whereas the FBM231 is specifically optimized for 0-20mA or 4-20mA analog signals. Compared to the older P0926AE version, the P0926GU is the updated “RoHS compliant” and “High Density” variant designed for newer modular baseplates. While legacy FBM230 models might require specific hardware jumpers for RS-485 termination, the P0926GU utilizes modern firmware that allows for more flexible configuration within the Foxboro Control Processor environment, providing better thermal management and longer MTBF (Mean Time Between Failures) than its predecessors.
Operation Tips
- Port Isolation: Each port is galvanically isolated from the others and from the system bus; however, ensure that the field-side cabling does not exceed recommended lengths for the chosen protocol (especially for RS-232).
- Protocol Loading: Before commissioning, verify that the correct driver (e.g., Modbus, Allen-Bradley, or custom serial driver) is loaded into the Control Processor to match the FBM230’s assigned task.
- Termination Resistors: When operating in RS-485 mode, ensure that external 120-ohm termination resistors are installed at the ends of the cable run to prevent signal reflections and packet loss.
- Seating and Locking: When installing the P0926GU on a high-density baseplate, ensure the module is fully seated and the top/bottom locking screws are tightened to maintain a reliable connection to the redundant system bus.
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ZYGO ZMI-2002
ZYGO ZMI-2002
ABB ZT372a-E GJR2237800R1 HE663909-31828
