Product Details
Configured for isolated analog and digital signal execution in distributed control systems, the Foxboro FBM215/218 RH926SP (FBM215/218 RH926SP) HART Communication Output Interface Module provides direct physical/electrical execution. The unit processes control logic into 8 isolated output channels combining analog control streams with superimposed digital HART diagnostics.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FBM215/218 RH926SP |
| Brand | Foxboro |
| Weight | Approx. 0.4 lbs (0.18 kg) |
| Dimensions | Standard Modular FBM Enclosure |
| Operating Temp | -20 deg C to +70 deg C (-4 deg F to 158 deg F) |
| Power Consumption | Powered via system backplane bus |
| Output Channels | 8 isolated outputs |
| Signal Type | 4-20 mA analog + HART FSK digital overlay |
| Vibration Resistance | 7.5 m/s2 (0.75 g), 5 to 500 Hz |
4-20 mA HART Loop Protocol and Channel-to-Channel Isolation
Within process control installations, this interface module manages communication links using the 4-20 mA HART loop protocol to transmit real-time control variables alongside two digital diagnostic messages per second per channel. Internal board architecture implements strict channel-to-channel isolation and galvanic barriers across each output path, eliminating ground loops, suppressing electromagnetic interference, and protecting internal controller logic from external field transients.
Frequently Asked Questions
Q: Does the FBM215/218 RH926SP module support hot-swapping on a powered Foxboro mounting base?
N/A: Yes, the module design permits live insertion and removal on an active baseplate without interrupting neighboring slot communications, provided standard system maintenance procedures are followed.
Q: How does the module handle communication errors on the HART FSK digital overlay?
N/A: The hardware processes parity checks and transmission acknowledgments internally, flagging communication faults to the primary controller if loop impedance or signal attenuation exceeds tolerance thresholds.
Field Installation Guidelines
- Mount the module securely into the designated slot on an approved Foxboro mounting structure, ensuring complete mechanical engagement with backplane connector pins.
- Terminate all field signal wiring using shielded twisted-pair cables, grounding the shield drain wire exclusively at the cabinet ground busbar to prevent ground loops.
- Verify that ambient temperatures within the instrumentation cabinet remain strictly within the -20 deg C to +70 deg C operational envelope.
- Check that field loop power supplies are correctly matched to the output channel voltage requirements prior to energizing the circuit.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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